F04C2/00	7	Rotary-piston machines or pumps (with non-parallel axes of co-operating members F04C3/00; with the working-chamber walls at least partly resiliently deformable F04C5/00; with fluid ring or the like F04C7/00; rotary-piston pumps specially adapted for elastic fluids F04C18/00; rotary-piston machines or pumps in which the working-fluid is exclusively displaced by, or exclusively displaces, one or more reciprocating pistons F04B)<br><br><u>NOTE</u><br><br>Group F04C2/30 takes precedence over groups F04C2/02&#160;-&#160;F04C2/28	F04C2/00	F04C2/00		193
F04C2/02	8	of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents	F04C2/02	F04C2/02		110
F04C2/025	9	{the moving and the stationary member having co-operating elements in spiral form}	F04C2/02	F04C2/02		193
F04C2/04	9	of internal axis type	F04C2/04	F04C2/04		119
F04C2/045	10	{having a C-shaped piston}	F04C2/04	F04C2/04		55
F04C2/06	9	of other than internal-axis type (F04C2/063 takes precedence)	F04C2/06	F04C2/06		37
F04C2/063	9	with coaxially-mounted members having continuously-changing circumferential spacing between them	F04C2/063	F04C2/063		111
F04C2/067	10	having cam-and-follower type drive	F04C2/067	F04C2/067		21
F04C2/07	10	having crankshaft-and-connecting-rod type drive	F04C2/07	F04C2/07		73
F04C2/073	10	having pawl-and-ratchet type drive	F04C2/073	F04C2/073		17
F04C2/077	10	having toothed-gearing type drive	F04C2/077	F04C2/077		43
F04C2/08	8	of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing	F04C2/08	F04C2/08		271
F04C2/082	9	{Details specially related to intermeshing engagement type machines or pumps}	F04C2/08	F04C2/08		289
F04C2/084	10	{Toothed wheels}	F04C2/08	F04C2/08		1633
F04C2/086	10	{Carter}	F04C2/08	F04C2/08		1133
F04C2/088	10	{Elements in the toothed wheels or the carter for relieving the pressure of fluid imprisoned in the zones of engagement}	F04C2/08	F04C2/08		256
F04C2/10	9	of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member	F04C2/10	F04C2/10		1338
F04C2/101	10	{with a crescent-shaped filler element, located between the inner and outer intermeshing members}	F04C2/10	F04C2/10		749
F04C2/102	10	{the two members rotating simultaneously around their respective axes}	F04C2/10	F04C2/10		1904
F04C2/103	10	{one member having simultaneously a rotational movement about its own axis and an orbital movement}	F04C2/10	F04C2/10		243
F04C2/104	11	{having an articulated driving shaft}	F04C2/10	F04C2/10		273
F04C2/105	11	{Details concerning timing or distribution valves}	F04C2/10	F04C2/10		175
F04C2/106	12	{Spool type distribution valves}	F04C2/10	F04C2/10		50
F04C2/107	10	with helical teeth	F04C2/107	F04C2/107		507
F04C2/1071	11	{the inner and outer member having a different number of threads and one of the two being made of elastic materials, e.g. Moineau type}	F04C2/107	F04C2/107		469
F04C2/1073	12	{where one member is stationary while the other member rotates and orbits}	F04C2/107	F04C2/107		578
F04C2/1075	13	{Construction of the stationary member}	F04C2/107	F04C2/107		508
F04C2/1076	12	{where one member orbits or wobbles relative to the other member which rotates around a fixed axis}	F04C2/107	F04C2/107		88
F04C2/1078	12	{where one member rotates and both members are allowed to orbit or wobble}	F04C2/107	F04C2/107		10
F04C2/113	10	the inner member carrying rollers intermeshing with the outer member	F04C2/113	F04C2/113		23
F04C2/12	9	of other than internal-axis type	F04C2/12	F04C2/12		171
F04C2/123	10	{with radially or approximately radially from the rotor body extending tooth-like elements, co-operating with recesses in the other rotor, e.g. one tooth}	F04C2/12	F04C2/12		133
F04C2/126	10	{with radially from the rotor body extending elements, not necessarily co-operating with corresponding recesses in the other rotor, e.g. lobes, Roots type}	F04C2/12	F04C2/12		371
F04C2/14	10	with toothed rotary pistons	F04C2/14	F04C2/14		1175
F04C2/16	11	with helical teeth, e.g. chevron-shaped, screw type {(for non-parallel axes of movement F04C3/00)}	F04C2/16	F04C2/16		1004
F04C2/165	12	{having more than two rotary pistons with parallel axes}	F04C2/16	F04C2/16		247
F04C2/18	11	with similar tooth forms (F04C2/16 takes precedence)	F04C2/18	F04C2/18		2094
F04C2/20	11	with dissimilar tooth forms (F04C2/16 takes precedence)	F04C2/20	F04C2/20		95
F04C2/22	8	of internal-axis type with equidirectional movement of co-operating members at the points of engagement, or with one of the co-operating members being stationary, the inner member having more teeth or tooth-equivalents than the outer member	F04C2/22	F04C2/22		161
F04C2/24	8	of counter-engagement type, i.e. the movement of co-operating members at the points of engagement being in opposite directions	F04C2/24	F04C2/24		11
F04C2/26	9	of internal-axis type	F04C2/26	F04C2/26		7
F04C2/28	9	of other than internal-axis type	F04C2/28	F04C2/28		11
F04C2/30	8	having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members	F04C2/30	F04C2/30		46
F04C2/32	9	having both the movement defined in groups F04C2/02 and relative reciprocation between co-operating members	F04C2/32	F04C2/32		197
F04C2/321	10	{with vanes hinged to the inner member and reciprocating with respect to the inner member}	F04C2/32	F04C2/32		27
F04C2/322	10	{with vanes hinged to the outer member and reciprocating with respect to the outer member}	F04C2/32	F04C2/32		65
F04C2/324	10	with vanes hinged to the inner member and reciprocating with respect to the outer member	F04C2/324	F04C2/324		37
F04C2/328	11	and hinged to the outer member	F04C2/328	F04C2/328		35
F04C2/332	10	with vanes hinged to the outer member and reciprocating with respect to the inner member	F04C2/332	F04C2/332		128
F04C2/336	11	and hinged to the inner member	F04C2/336	F04C2/336		44
F04C2/34	9	having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members	F04C2/34	F04C2/34		168
F04C2/344	10	with vanes reciprocating with respect to the inner member	F04C2/344	F04C2/344		1868
F04C2/3441	11	{the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation}	F04C2/344	F04C2/344		654
F04C2/3442	12	{the surfaces of the inner and outer member, forming the working space, being surfaces of revolution}	F04C2/344	F04C2/344		622
F04C2/3443	12	{with a separation element located between the inlet and outlet opening}	F04C2/344	F04C2/344		94
F04C2/3445	12	{the vanes having the form of rollers, slippers or the like}	F04C2/344	F04C2/344		256
F04C2/3446	11	{the inner and outer member being in contact along more than one line or surface}	F04C2/344	F04C2/344		729
F04C2/3447	12	{the vanes having the form of rollers, slippers or the like}	F04C2/344	F04C2/344		111
F04C2/3448	11	{with axially movable vanes}	F04C2/344	F04C2/344		239
F04C2/348	11	the vanes positively engaging, with circumferential play, an outer rotatable member	F04C2/348	F04C2/348		172
F04C2/352	11	the vanes being pivoted on the axis of the outer member	F04C2/352	F04C2/352		273
F04C2/356	10	with vanes reciprocating with respect to the outer member	F04C2/356	F04C2/356		121
F04C2/3562	11	{the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation}	F04C2/356	F04C2/356		121
F04C2/3564	12	{the surfaces of the inner and outer member, forming the working space, being surfaces of revolution}	F04C2/356	F04C2/356		76
F04C2/3566	11	{the inner and outer member being in contact along more than one line or surface}	F04C2/356	F04C2/356		190
F04C2/3568	11	{with axially movable vanes}	F04C2/356	F04C2/356		76
F04C2/36	9	having both the movements defined in groups F04C2/22 and F04C2/24	F04C2/36	F04C2/36		299
F04C2/38	9	having the movement defined in group F04C2/02 and having a hinged member (F04C2/32 takes precedence)	F04C2/38	F04C2/38		7
F04C2/39	10	with vanes hinged to the inner as well as to the outer member	F04C2/39	F04C2/39		33
F04C2/40	9	having the movement defined in group F04C2/08 or F04C2/22 and having a hinged member	F04C2/40	F04C2/40		92
F04C2/44	10	with vanes hinged to the inner member	F04C2/44	F04C2/44		319
F04C2/46	10	with vanes hinged to the outer member	F04C2/46	F04C2/46		242
F04C3/00	7	Rotary-piston machines or pumps, with non-parallel axes of movement of co-operating members, e.g. of screw type (with the working-chamber walls at least partly resiliently deformable F04C5/00; rotary-piston pumps with non-parallel axes of movement of co-operating members specially adapted for elastic fluids F04C18/48)	F04C3/00	F04C3/00		17
F04C3/02	8	the axes being arranged at an angle of 90 degrees	F04C3/02	F04C3/02		92
F04C3/04	9	of intermeshing engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing	F04C3/04	F04C3/04		86
F04C3/06	8	the axes being arranged otherwise than at an angle of 90 degrees	F04C3/06	F04C3/06		211
F04C3/08	9	of intermeshing engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing	F04C3/08	F04C3/08		39
F04C3/085	10	{the axes of cooperating members being on the same plane}	F04C3/08	F04C3/08		44
F04C5/00	7	Rotary-piston machines or pumps with the working-chamber walls at least partly resiliently deformable (such pumps specially adapted for elastic fluids F04C18/00)	F04C5/00	F04C5/00		558
F04C7/00	7	Rotary-piston machines or pumps with fluid ring or the like (such pumps specially adapted for elastic fluids F04C19/00)	F04C7/00	F04C7/00		91
F04C9/00	7	Oscillating-piston machines or pumps (such pumps specially adapted for elastic fluids F04C21/00)	F04C9/00	F04C9/00		56
F04C9/002	8	{the piston oscillating around a fixed axis}	F04C9/00	F04C9/00		292
F04C9/005	8	{the piston oscillating in the space, e.g. around a fixed point (rotary-piston machines or pumps with non-parallel axes of movement between co-operating members F04C3/00)}	F04C9/00	F04C9/00		191
F04C9/007	8	{the points of the moving element describing approximately an alternating movement in axial direction with respect to the other element}	F04C9/00	F04C9/00		31
F04C11/00	7	Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type (combinations of such pumps specially adapted for elastic fluids F04C23/00); Pumping installations (F04C13/00 takes precedence; specially adapted for elastic fluids F04C23/00; fluid gearing F16H)<br><br><u>NOTE</u><br><br>Multi-stage engines, motors, pumps or compressors with stages connected in series or in parallel are not considered as having complementary function	F04C11/00	F04C11/00		737
F04C11/001	8	{of similar working principle}	F04C11/00	F04C11/00		1138
F04C11/003	9	{having complementary function}	F04C11/00	F04C11/00		176
F04C11/005	8	{of dissimilar working principle}	F04C11/00	F04C11/00		333
F04C11/006	9	{having complementary function}	F04C11/00	F04C11/00		111
F04C11/008	8	{Enclosed motor pump units}	F04C11/00	F04C11/00		820
F04C13/00	7	Adaptations of machines or pumps for special use, e.g. for extremely high pressures (of pumps specially adapted for elastic fluids F04C25/00)	F04C13/00	F04C13/00		297
F04C13/001	8	{Pumps for particular liquids}	F04C13/00	F04C13/00		602
F04C13/002	9	{for homogeneous viscous liquids}	F04C13/00	F04C13/00		544
F04C13/004	10	{with means for fluidising or diluting the material being pumped}	F04C13/00	F04C13/00		43
F04C13/005	8	{Removing contaminants, deposits or scale from the pump; Cleaning}	F04C13/00	F04C13/00		285
F04C13/007	8	{Venting; Gas and vapour separation during pumping (preventing vapour lock in fuel pumps F02M37/20, in centrifugal pumps F04D9/00)}	F04C13/00	F04C13/00		66
F04C13/008	8	{Pumps for submersible use, i.e. down-hole pumping}	F04C13/00	F04C13/00		564
F04C14/00	7	Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations (of pumps or pumping installations specially adapted for elastic fluids F04C28/00)	F04C14/00	F04C14/00		457
F04C14/02	8	specially adapted for several machines or pumps connected in series or in parallel	F04C14/02	F04C14/02		427
F04C14/04	8	specially adapted for reversible machines or pumps	F04C14/04	F04C14/04		373
F04C14/06	8	specially adapted for stopping, starting, idling or no-load operation	F04C14/06	F04C14/06		416
F04C14/065	9	{Capacity control using a multiplicity of units or pumping capacities, e.g. multiple chambers, individually switchable or controllable}	F04C14/06	F04C14/06		78
F04C14/08	8	characterised by varying the rotational speed	F04C14/08	F04C14/08		411
F04C14/10	8	characterised by changing the positions of the inlet or outlet openings with respect to the working chamber	F04C14/10	F04C14/10		159
F04C14/12	9	using sliding valves	F04C14/12	F04C14/12		72
F04C14/14	9	using rotating valves	F04C14/14	F04C14/14		135
F04C14/16	9	using lift valves	F04C14/16	F04C14/16		24
F04C14/18	8	characterised by varying the volume of the working chamber (by changing the positions of inlet or outlet openings F04C14/10)	F04C14/18	F04C14/18		161
F04C14/185	9	{by varying the useful pumping length of the cooperating members in the axial direction}	F04C14/18	F04C14/18		300
F04C14/20	9	by changing the form of the inner or outer contour of the working chamber	F04C14/20	F04C14/20		141
F04C14/22	9	by changing the eccentricity between cooperating members	F04C14/22	F04C14/22		397
F04C14/223	10	{using a movable cam}	F04C14/22	F04C14/22		548
F04C14/226	11	{by pivoting the cam around an eccentric axis}	F04C14/22	F04C14/22		534
F04C14/24	8	characterised by using valves controlling pressure or flow rate, e.g. discharge valves {or unloading valves}(F04C14/10 takes precedence)	F04C14/24	F04C14/24		612
F04C14/26	9	using bypass channels	F04C14/26	F04C14/26		876
F04C14/265	10	{being obtained by displacing a lateral sealing face}	F04C14/26	F04C14/26		143
F04C14/28	8	Safety arrangements; Monitoring	F04C14/28	F04C14/28		693
F04C15/00	7	Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00&#160;-&#160;F04C14/00(of pumps specially adapted for elastic fluids F04C18/00&#160;-&#160;F04C29/00)	F04C15/00	F04C15/00		2126
F04C15/0003	8	{Sealing arrangements in rotary-piston machines or pumps (sealing in general F16J)}	F04C15/00	F04C15/00		504
F04C15/0007	9	{Radial sealings for working fluid}	F04C15/00	F04C15/00		128
F04C15/0011	10	{of rigid material}	F04C15/00	F04C15/00		29
F04C15/0015	10	{of resilient material}	F04C15/00	F04C15/00		98
F04C15/0019	10	{Radial sealing elements specially adapted for intermeshing-engagement type machines or pumps, e.g. gear machines or pumps}	F04C15/00	F04C15/00		295
F04C15/0023	9	{Axial sealings for working fluid}	F04C15/00	F04C15/00		400
F04C15/0026	10	{Elements specially adapted for sealing of the lateral faces of intermeshing-engagement type machines or pumps, e.g. gear machines or pumps}	F04C15/00	F04C15/00		885
F04C15/003	9	{Sealings for working fluid between radially and axially moving parts}	F04C15/00	F04C15/00		36
F04C15/0034	9	{for other than the working fluid, i.e. the sealing arrangements are not between working chambers of the machine}	F04C15/00	F04C15/00		222
F04C15/0038	10	{Shaft sealings specially adapted for rotary-piston machines or pumps}	F04C15/00	F04C15/00		499
F04C15/0042	8	{Systems for the equilibration of forces acting on the machines or pump (interstice adjustment other than by fluid pressure F01C21/102)}	F04C15/00	F04C15/00		751
F04C15/0046	9	{Internal leakage control}	F04C15/00	F04C15/00		164
F04C15/0049	9	{Equalization of pressure pulses (silencing for compressors F04C29/06)}	F04C15/00	F04C15/00		598
F04C15/0053	8	{Venting means for starting}	F04C15/00	F04C15/00		92
F04C15/0057	8	{Driving elements, brakes, couplings, transmission specially adapted for machines or pumps (brakes, couplings, transmissions per seF16, B60)}	F04C15/00	F04C15/00		268
F04C15/0061	9	{Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions}	F04C15/00	F04C15/00		888
F04C15/0065	10	{for eccentric movement}	F04C15/00	F04C15/00		204
F04C15/0069	10	{Magnetic couplings}	F04C15/00	F04C15/00		204
F04C15/0073	10	{Couplings between rotors and input or output shafts acting by interengaging or mating parts, i.e. positive coupling of rotor and shaft}	F04C15/00	F04C15/00		409
F04C15/0076	9	{Fixing rotors on shafts, e.g. by clamping together hub and shaft}	F04C15/00	F04C15/00		328
F04C15/008	9	{Prime movers}	F04C15/00	F04C15/00		822
F04C15/0084	9	{Brakes, braking assemblies}	F04C15/00	F04C15/00		99
F04C15/0088	8	{Lubrication (of machines or engines in general F01M)}	F04C15/00	F04C15/00		754
F04C15/0092	9	{Control systems for the circulation of the lubricant}	F04C15/00	F04C15/00		61
F04C15/0096	8	{Heating; Cooling (of machines or engines in general F01P)}	F04C15/00	F04C15/00		656
F04C15/06	8	Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet	F04C15/06	F04C15/06		1829
F04C15/062	9	{Arrangements for supercharging the working space (similar arrangements for internal combustion engines F02B33/00, F02B37/00)}	F04C15/06	F04C15/06		200
F04C15/064	9	{with inlet and outlet valves specially adapted for rotary or oscillating piston machines or pumps}	F04C15/06	F04C15/06		234
F04C15/066	10	{of the non-return type}	F04C15/06	F04C15/06		128
F04C15/068	11	{of the elastic type, e.g. reed valves}	F04C15/06	F04C15/06		60
F04C18/00	7	Rotary-piston pumps specially adapted for elastic fluids (with fluid ring or the like F04C19/00; rotary-piston pumps in which the working-fluid is exclusively displaced by one or more reciprocating pistons F04B)<br><br><u>NOTE</u><br><br>Group F04C18/30 takes precedence over groups F04C18/02&#160;-&#160;F04C18/28 and F04C18/48&#160;-&#160;F04C18/56.	F04C18/00	F04C18/00		328
F04C18/02	8	of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents	F04C18/02	F04C18/02		1845
F04C18/0207	9	{both members having co-operating elements in spiral form}	F04C18/02	F04C18/02		420
F04C18/0215	10	{where only one member is moving}	F04C18/02	F04C18/02		6801
F04C18/0223	11	{with symmetrical double wraps}	F04C18/02	F04C18/02		383
F04C18/023	10	{where both members are moving}	F04C18/02	F04C18/02		276
F04C18/0238	11	{with symmetrical double wraps}	F04C18/02	F04C18/02		33
F04C18/0246	10	{Details concerning the involute wraps or their base, e.g. geometry}	F04C18/02	F04C18/02		579
F04C18/0253	11	{Details concerning the base}	F04C18/02	F04C18/02		667
F04C18/0261	12	{Details of the ports, e.g. location, number, geometry}	F04C18/02	F04C18/02		476
F04C18/0269	11	{Details concerning the involute wraps}	F04C18/02	F04C18/02		730
F04C18/0276	12	{Different wall heights}	F04C18/02	F04C18/02		195
F04C18/0284	12	{Details of the wrap tips}	F04C18/02	F04C18/02		170
F04C18/0292	12	{Ports or channels located in the wrap}	F04C18/02	F04C18/02		212
F04C18/04	9	of internal-axis type	F04C18/04	F04C18/04		121
F04C18/045	10	{having a C-shaped piston}	F04C18/04	F04C18/04		62
F04C18/06	9	of other than internal-axis type	F04C18/06	F04C18/06		34
F04C18/063	9	with coaxially-mounted members having continuously-changing circumferential spacing between them	F04C18/063	F04C18/063		71
F04C18/067	10	having cam-and-follower type drive	F04C18/067	F04C18/067		19
F04C18/07	10	having crankshaft-and-connecting-rod type drive	F04C18/07	F04C18/07		45
F04C18/073	10	having pawl-and-ratchet type drive	F04C18/073	F04C18/073		5
F04C18/077	10	having toothed-gearing type drive	F04C18/077	F04C18/077		20
F04C18/08	8	of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing	F04C18/08	F04C18/08		88
F04C18/082	9	{Details specially related to intermeshing engagement type pumps}	F04C18/08	F04C18/08		181
F04C18/084	10	{Toothed wheels}	F04C18/08	F04C18/08		749
F04C18/086	10	{Carter}	F04C18/08	F04C18/08		231
F04C18/088	10	{Elements in the toothed wheels or the carter for relieving the pressure of fluid imprisoned in the zones of engagement}	F04C18/08	F04C18/08		97
F04C18/10	9	of internal-axis type with the outer member having more teeth or tooth equivalents, e.g. rollers, than the inner member	F04C18/10	F04C18/10		275
F04C18/103	10	{with a crescent shaped filler element, located between the inner and outer intermeshing elements}	F04C18/10	F04C18/10		14
F04C18/107	10	with helical teeth	F04C18/107	F04C18/107		377
F04C18/1075	11	{the inner and outer member having a different number of threads and one of the two being made of elastic material, e.g. Moineau type}	F04C18/107	F04C18/107		24
F04C18/113	10	the inner member carrying rollers intermeshing with the outer member	F04C18/113	F04C18/113		18
F04C18/12	9	of other than internal-axis type	F04C18/12	F04C18/12		179
F04C18/123	10	{with radially or approximately radially from the rotor body extending tooth-like elements, co-operating with recesses in the other rotor, e.g. one tooth}	F04C18/12	F04C18/12		279
F04C18/126	10	{with radially from the rotor body extending elements, not necessarily co-operating with corresponding recesses in the other rotor, e.g. lobes, Roots type}	F04C18/12	F04C18/12		1263
F04C18/14	10	with toothed rotary pistons	F04C18/14	F04C18/14		115
F04C18/16	11	with helical teeth, e.g. chevron-shaped, screw type {(for non-parallel axes of movement F04C18/48)}	F04C18/16	F04C18/16		3547
F04C18/165	12	{having more than two rotary pistons with parallel axes}	F04C18/16	F04C18/16		97
F04C18/18	11	with similar tooth forms (F04C18/16 takes precedence)	F04C18/18	F04C18/18		208
F04C18/20	11	with dissimilar tooth forms (F04C18/16 takes precedence)	F04C18/20	F04C18/20		149
F04C18/22	8	of internal-axis type with equidirectional movement of co-operating members at the points of engagement, or with one of the co-operating members being stationary, the inner member having more teeth or tooth equivalents than the outer member	F04C18/22	F04C18/22		188
F04C18/24	8	of counter-engagement type, i.e. the movement of co-operating members at the points of engagement being in opposite directions	F04C18/24	F04C18/24		4
F04C18/26	9	of internal-axis type	F04C18/26	F04C18/26		5
F04C18/28	9	of other than internal-axis type	F04C18/28	F04C18/28		16
F04C18/30	8	having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members	F04C18/30	F04C18/30		50
F04C18/32	9	having both the movement defined in group F04C18/02 and relative reciprocation between the co-operating members	F04C18/32	F04C18/32		116
F04C18/321	10	{with vanes hinged to the inner member and reciprocating with respect to the inner member}	F04C18/32	F04C18/32		45
F04C18/322	10	{with vanes hinged to the outer member and reciprocating with respect to the outer member}	F04C18/32	F04C18/32		184
F04C18/324	10	with vanes hinged to the inner member and reciprocating with respect to the outer member	F04C18/324	F04C18/324		167
F04C18/328	11	and hinged to the outer member	F04C18/328	F04C18/328		13
F04C18/332	10	with vanes hinged to the outer member and reciprocating with respect to the inner member	F04C18/332	F04C18/332		48
F04C18/336	11	and hinged to the inner member	F04C18/336	F04C18/336		14
F04C18/34	9	having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members	F04C18/34	F04C18/34		289
F04C18/344	10	with vanes reciprocating with respect to the inner member	F04C18/344	F04C18/344		1722
F04C18/3441	11	{the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation}	F04C18/344	F04C18/344		605
F04C18/3442	12	{the surfaces of the inner and outer member, forming the inlet and outlet opening}	F04C18/344	F04C18/344		311
F04C18/3443	12	{with a separation element located between the inlet and outlet opening}	F04C18/344	F04C18/344		12
F04C18/3445	12	{the vanes having the form of rollers, slippers or the like}	F04C18/344	F04C18/344		84
F04C18/3446	11	{the inner and outer member being in contact along more than one line or surface}	F04C18/344	F04C18/344		268
F04C18/3447	12	{the vanes having the form of rollers, slippers or the like}	F04C18/344	F04C18/344		57
F04C18/3448	11	{with axially movable vanes}	F04C18/344	F04C18/344		80
F04C18/348	11	the vanes positively engaging, with circumferential play, an outer rotatable member	F04C18/348	F04C18/348		233
F04C18/352	11	the vanes being pivoted on the axis of the outer member	F04C18/352	F04C18/352		314
F04C18/356	10	with vanes reciprocating with respect to the outer member	F04C18/356	F04C18/356		2329
F04C18/3562	11	{the inner and outer member being in contact along one line or continuous surfaces substantially parallel to the axis of rotation}	F04C18/356	F04C18/356		576
F04C18/3564	12	{the surfaces of the inner and outer member, forming the working space, being surfaces of revolution}	F04C18/356	F04C18/356		1053
F04C18/3566	11	{the inner and outer member being in contact along more than line or surface}	F04C18/356	F04C18/356		86
F04C18/3568	11	{with axially movable vanes}	F04C18/356	F04C18/356		137
F04C18/36	9	having both the movements defined in groups F04C18/22 and F04C18/24	F04C18/36	F04C18/36		31
F04C18/38	9	having the movement defined in group F04C18/02 and having a hinged member (F04C18/32 takes precedence)	F04C18/38	F04C18/38		12
F04C18/39	10	with vanes hinged to the inner as well as to the outer member	F04C18/39	F04C18/39		38
F04C18/40	9	having the movement defined in group F04C18/08 or F04C18/22 and having a hinged member	F04C18/40	F04C18/40		3
F04C18/44	10	with vanes hinged to the inner member	F04C18/44	F04C18/44		167
F04C18/46	10	with vanes hinged to the outer member	F04C18/46	F04C18/46		97
F04C18/48	8	Rotary-piston pumps with non-parallel axes of movement of co-operating members	F04C18/48	F04C18/48		9
F04C18/50	9	the axes being arranged at an angle of 90 degrees	F04C18/50	F04C18/50		14
F04C18/52	10	of intermeshing engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing	F04C18/52	F04C18/52		195
F04C18/54	9	the axes being arranged otherwise than at an angle of 90 degrees	F04C18/54	F04C18/54		79
F04C18/56	10	of intermeshing engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing	F04C18/56	F04C18/56		28
F04C18/565	11	{the axes of cooperating members being on the same plane}	F04C18/56	F04C18/56		23
F04C19/00	7	Rotary-piston pumps with fluid ring or the like, specially adapted for elastic fluids	F04C19/00	F04C19/00		499
F04C19/001	8	{General arrangements, plants, flowsheets}	F04C19/00	F04C19/00		125
F04C19/002	8	{with rotating outer members}	F04C19/00	F04C19/00		206
F04C19/004	8	{Details concerning the operating liquid, e.g. nature, separation, cooling, cleaning, control of the supply}	F04C19/00	F04C19/00		471
F04C19/005	8	{Details concerning the admission or discharge}	F04C19/00	F04C19/00		156
F04C19/007	9	{Port members in the form of side plates}	F04C19/00	F04C19/00		130
F04C19/008	9	{Port members in the form of conical or cylindrical pieces situated in the centre of the impeller}	F04C19/00	F04C19/00		158
F04C21/00	7	Oscillating-piston pumps specially adapted for elastic fluids	F04C21/00	F04C21/00		123
F04C21/002	8	{the piston oscillating around a fixed axis}	F04C21/00	F04C21/00		71
F04C21/005	8	{the piston oscillating in the space, e.g. around a fixed point (rotary-piston pumps with non-parallel axes of rotation between co-operating members F04C18/48)}	F04C21/00	F04C21/00		33
F04C21/007	8	{the points of the moving element describing approximately an alternating movement in axial direction with respect to the other element}	F04C21/00	F04C21/00		12
F04C23/00	7	Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids (F04C25/00 takes precedence)<br><br><u>NOTE</u><br><br>Multi-stage pumps or compressors with stages connected in series or in parallel are not considered as having complementary function	F04C23/00	F04C23/00		765
F04C23/001	8	{of similar working principle}	F04C23/00	F04C23/00		2655
F04C23/003	9	{having complementary function}	F04C23/00	F04C23/00		166
F04C23/005	8	{of dissimilar working principle}	F04C23/00	F04C23/00		367
F04C23/006	9	{having complementary function}	F04C23/00	F04C23/00		101
F04C23/008	8	{Hermetic pumps}<br><br><u>NOTE</u><br><br>Multi-stage steam engines, motors, pumps or compressors with stages connected in series or in parallel are not considered as having complementary function	F04C23/00	F04C23/00		4701
F04C23/02	8	Pumps characterised by combination with, or adaptation to, specific driving engines or motors	F04C23/02	F04C23/02		2727
F04C25/00	7	Adaptations of pumps for special use of pumps for elastic fluids	F04C25/00	F04C25/00		222
F04C25/02	8	for producing high vacuum (sealing arrangements F04C27/00; silencing F04C29/06)	F04C25/02	F04C25/02		2407
F04C27/00	7	Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids	F04C27/00	F04C27/00		828
F04C27/001	8	{Radial sealings for working fluid}	F04C27/00	F04C27/00		343
F04C27/002	9	{of rigid material}	F04C27/00	F04C27/00		30
F04C27/003	9	{of resilient material}	F04C27/00	F04C27/00		91
F04C27/004	9	{Radial sealing elements specially adapted for intermeshing-engagement type pumps, e.g. gear pumps}	F04C27/00	F04C27/00		78
F04C27/005	8	{Axial sealings for working fluid}	F04C27/00	F04C27/00		1336
F04C27/006	9	{Elements specially adapted for sealing of the lateral faces of intermeshing-engagement type pumps, e.g. gear pumps}	F04C27/00	F04C27/00		99
F04C27/007	8	{Sealings for working fluid between radially and axially moving parts}	F04C27/00	F04C27/00		52
F04C27/008	8	{for other than working fluid, i.e. the sealing arrangements are not between working chambers of the machine}	F04C27/00	F04C27/00		398
F04C27/009	9	{Shaft sealings specially adapted for pumps}	F04C27/00	F04C27/00		502
F04C27/02	8	Liquid sealing for high-vacuum pumps {or for compressors}	F04C27/02	F04C27/02		441
F04C28/00	7	Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids	F04C28/00	F04C28/00		591
F04C28/02	8	specially adapted for several pumps connected in series or in parallel	F04C28/02	F04C28/02		404
F04C28/04	8	specially adapted for reversible pumps	F04C28/04	F04C28/04		111
F04C28/06	8	specially adapted for stopping, starting, idling or no-load operation	F04C28/06	F04C28/06		945
F04C28/065	9	{Capacity control using a multiplicity of units or pumping capacities, e.g. multiple chambers, individually switchable or controllable}	F04C28/06	F04C28/06		93
F04C28/08	8	characterised by varying the rotational speed	F04C28/08	F04C28/08		745
F04C28/10	8	characterised by changing the positions of the inlet or outlet openings with respect to the working chamber	F04C28/10	F04C28/10		101
F04C28/12	9	using sliding valves	F04C28/12	F04C28/12		274
F04C28/125	10	{with sliding valves controlled by the use of fluid other than the working fluid}	F04C28/12	F04C28/12		261
F04C28/14	9	using rotating valves	F04C28/14	F04C28/14		241
F04C28/16	9	using lift valves	F04C28/16	F04C28/16		294
F04C28/18	8	characterised by varying the volume of the working chamber (by changing the positions of inlet or outlet openings F04C28/10)	F04C28/18	F04C28/18		203
F04C28/185	9	{by varying the useful pumping length of the cooperating members in the axial direction}	F04C28/18	F04C28/18		34
F04C28/20	9	by changing the form of the inner or outer contour of the working chamber	F04C28/20	F04C28/20		19
F04C28/22	9	by changing the eccentricity between cooperating members	F04C28/22	F04C28/22		310
F04C28/24	8	characterised by using valves controlling pressure or flow rate, e.g. discharge valves {or unloading valves}(F04C28/10 takes precedence)	F04C28/24	F04C28/24		1064
F04C28/26	9	using bypass channels	F04C28/26	F04C28/26		699
F04C28/265	10	{being obtained by displacing a lateral sealing face}	F04C28/26	F04C28/26		117
F04C28/28	8	Safety arrangements; Monitoring	F04C28/28	F04C28/28		1717
F04C29/00	7	Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00&#160;-&#160;F04C28/00	F04C29/00	F04C29/00		5586
F04C29/0007	8	{Injection of a fluid in the working chamber for sealing, cooling and lubricating (sealing only F04C27/00; lubrication only F04C29/02; cooling F02B47/02, F02D21/00, F02M25/00)}	F04C29/00	F04C29/00		679
F04C29/0014	9	{with control systems for the injection of the fluid}	F04C29/00	F04C29/00		220
F04C29/0021	8	{Systems for the equilibration of forces acting on the pump (interstice adjustment other than by fluid pressure F01C21/102)}	F04C29/00	F04C29/00		1678
F04C29/0028	9	{Internal leakage control}	F04C29/00	F04C29/00		166
F04C29/0035	9	{Equalization of pressure pulses (silencing F04C29/06)}	F04C29/00	F04C29/00		559
F04C29/0042	8	{Driving elements, brakes, couplings, transmissions specially adapted for pumps (brakes, couplings, transmissions per seF16, B60)}	F04C29/00	F04C29/00		373
F04C29/005	9	{Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions}	F04C29/00	F04C29/00		794
F04C29/0057	10	{for eccentric movement}	F04C29/00	F04C29/00		959
F04C29/0064	10	{Magnetic couplings}	F04C29/00	F04C29/00		112
F04C29/0071	10	{Couplings between rotors and input or output shafts acting by interengaging or mating parts, i.e. positive coupling of rotor and shaft}	F04C29/00	F04C29/00		216
F04C29/0078	9	{Fixing rotors on shafts, e.g. by clamping together hub and shaft}	F04C29/00	F04C29/00		183
F04C29/0085	9	{Prime movers}	F04C29/00	F04C29/00		1323
F04C29/0092	8	{Removing solid or liquid contaminants from the gas under pumping, e.g. by filtering or deposition; Purging; Scrubbing; Cleaning}	F04C29/00	F04C29/00		1186
F04C29/02	8	Lubrication (of machines or engines in general F01M); Lubricant separation (separation in general B01D)	F04C29/02	F04C29/02		3252
F04C29/021	9	{Control systems for the circulation of the lubricant}	F04C29/02	F04C29/02		583
F04C29/023	9	{Lubricant distribution through a hollow driving shaft (F04C29/025 takes precedence)}	F04C29/02	F04C29/02		1051
F04C29/025	9	{using a lubricant pump}	F04C29/02	F04C29/02		755
F04C29/026	9	{Lubricant separation}	F04C29/02	F04C29/02		2117
F04C29/028	9	{Means for improving or restricting lubricant flow}	F04C29/02	F04C29/02		1727
F04C29/04	8	Heating; Cooling (of machines or engines in general F01P); Heat insulation (heat insulation in general F16L59/00)	F04C29/04	F04C29/04		2839
F04C29/042	9	{by injecting a fluid (injection of fluid for sealing, cooling or lubrication F04C29/0007)}	F04C29/04	F04C29/04		925
F04C29/045	9	{of the electric motor in hermetic pumps}	F04C29/04	F04C29/04		536
F04C29/047	9	{Cooling of electronic devices installed inside the pump housing, e.g. inverters}	F04C29/04	F04C29/04		250
F04C29/06	8	Silencing (gas-flow silencers or exhaust apparatus for machines or engines in general F01N)	F04C29/06	F04C29/06		1969
F04C29/061	9	{Silencers using overlapping frequencies, e.g. Helmholtz resonators}	F04C29/06	F04C29/06		283
F04C29/063	9	{Sound absorbing materials}	F04C29/06	F04C29/06		245
F04C29/065	9	{Noise dampening volumes, e.g. muffler chambers}	F04C29/06	F04C29/06		694
F04C29/066	10	{with means to enclose the source of noise}	F04C29/06	F04C29/06		116
F04C29/068	9	{the silencing means being arranged inside the pump housing}	F04C29/06	F04C29/06		672
F04C29/12	8	Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet	F04C29/12	F04C29/12		3666
F04C29/122	9	{Arrangements for supercharging the working space (similar arrangements for internal combustion engines F02B33/00, F02B37/00)}	F04C29/12	F04C29/12		184
F04C29/124	9	{with inlet and outlet valves specially adapted for rotary or oscillating piston pumps}	F04C29/12	F04C29/12		1261
F04C29/126	10	{of the non-return type}	F04C29/12	F04C29/12		523
F04C29/128	11	{of the elastic type, e.g. reed valves}	F04C29/12	F04C29/12		780
F04C2210/00	7	Fluid	CPCONLY	F04C2210/00		5
F04C2210/10	8	working	CPCONLY	F04C2210/10		65
F04C2210/1005	9	Air	CPCONLY	F04C2210/1005		110
F04C2210/1011	9	Amine	CPCONLY	F04C2210/1011		1
F04C2210/1016	9	Blood	CPCONLY	F04C2210/1016		18
F04C2210/1022	9	C3HmFn	CPCONLY	F04C2210/1022		3
F04C2210/1027	9	CO2	CPCONLY	F04C2210/1027		40
F04C2210/1033	9	Concrete	CPCONLY	F04C2210/1033		8
F04C2210/1038	9	Cooking oil	CPCONLY	F04C2210/1038		4
F04C2210/1044	9	Fuel	CPCONLY	F04C2210/1044		126
F04C2210/105	9	Helium (He)	CPCONLY	F04C2210/105		17
F04C2210/1055	9	Hydrogen (H2)	CPCONLY	F04C2210/1055		24
F04C2210/1061	9	LPG	CPCONLY	F04C2210/1061		6
F04C2210/1066	9	Nitrogen (N2)	CPCONLY	F04C2210/1066		2
F04C2210/1072	9	Oxygen (O2)	CPCONLY	F04C2210/1072		33
F04C2210/1077	9	Steam	CPCONLY	F04C2210/1077		21
F04C2210/1083	9	Urea	CPCONLY	F04C2210/1083		41
F04C2210/1088	9	Vegetable oil	CPCONLY	F04C2210/1088		1
F04C2210/1094	9	Water	CPCONLY	F04C2210/1094		45
F04C2210/12	8	auxiliary	CPCONLY	F04C2210/12		21
F04C2210/122	9	Nitrogen (N2)	CPCONLY	F04C2210/122		3
F04C2210/124	9	Sodium (Na)	CPCONLY	F04C2210/124		1
F04C2210/126	9	Tin	CPCONLY	F04C2210/126		1
F04C2210/128	9	Water	CPCONLY	F04C2210/128		9
F04C2210/14	8	Lubricant	CPCONLY	F04C2210/14		181
F04C2210/142	9	Ester	CPCONLY	F04C2210/142		10
F04C2210/145	9	PAG	CPCONLY	F04C2210/145		2
F04C2210/147	9	Water	CPCONLY	F04C2210/147		8
F04C2210/20	8	liquid, i.e. incompressible	CPCONLY	F04C2210/20		250
F04C2210/201	9	DME	CPCONLY	F04C2210/201		1
F04C2210/203	9	Fuel	CPCONLY	F04C2210/203		84
F04C2210/205	9	Ink	CPCONLY	F04C2210/205		8
F04C2210/206	9	Oil	CPCONLY	F04C2210/206		375
F04C2210/208	9	Water	CPCONLY	F04C2210/208		28
F04C2210/22	8	gaseous, i.e. compressible	CPCONLY	F04C2210/22		369
F04C2210/221	9	Air	CPCONLY	F04C2210/221		100
F04C2210/222	9	Carbon dioxide (CO2)	CPCONLY	F04C2210/222		26
F04C2210/224	9	Hydrogen (H2)	CPCONLY	F04C2210/224		21
F04C2210/225	9	Nitrogen (N2)	CPCONLY	F04C2210/225		7
F04C2210/227	9	Steam	CPCONLY	F04C2210/227		22
F04C2210/228	9	Vapour	CPCONLY	F04C2210/228		8
F04C2210/24	8	mixed, e.g. two-phase fluid	CPCONLY	F04C2210/24		133
F04C2210/242	9	Steam	CPCONLY	F04C2210/242		7
F04C2210/245	9	Vapour	CPCONLY	F04C2210/245		7
F04C2210/247	9	Water	CPCONLY	F04C2210/247		8
F04C2210/26	8	Refrigerants with particular properties, e.g. HFC-134a	CPCONLY	F04C2210/26		1721
F04C2210/261	9	Carbon dioxide (CO2)	CPCONLY	F04C2210/261		89
F04C2210/263	9	HFO1234YF	CPCONLY	F04C2210/263		69
F04C2210/265	9	Ammoniac (NH3)	CPCONLY	F04C2210/265		6
F04C2210/266	9	Propane	CPCONLY	F04C2210/266		15
F04C2210/268	9	R32	CPCONLY	F04C2210/268		33
F04C2210/40	8	Properties	CPCONLY	F04C2210/40		13
F04C2210/42	9	magnetic or ferromagnetic; Ferrofluids	CPCONLY	F04C2210/42		19
F04C2210/44	9	Viscosity	CPCONLY	F04C2210/44		53
F04C2210/60	8	Condition	CPCONLY	F04C2210/60		3
F04C2210/62	9	Purity	CPCONLY	F04C2210/62		42
F04C2220/00	7	Application	CPCONLY	F04C2220/00		23
F04C2220/10	8	Vacuum	CPCONLY	F04C2220/10		602
F04C2220/12	9	Dry running	CPCONLY	F04C2220/12		293
F04C2220/20	8	Pumps with means for separating and evacuating the gaseous phase	CPCONLY	F04C2220/20		51
F04C2220/22	8	for very low temperatures, i.e. cryogenic	CPCONLY	F04C2220/22		15
F04C2220/24	8	for metering throughflow	CPCONLY	F04C2220/24		129
F04C2220/26	8	for step-by-step output movement	CPCONLY	F04C2220/26		7
F04C2220/28	8	for pulsed fluid flow	CPCONLY	F04C2220/28		10
F04C2220/30	8	Use in a chemical vapor deposition [CVD] process or in a similar process	CPCONLY	F04C2220/30		88
F04C2220/40	8	Pumps with means for venting areas other than the working chamber, e.g. bearings, gear chambers, shaft seals	CPCONLY	F04C2220/40		56
F04C2220/50	8	Pumps with means for introducing gas under pressure for ballasting	CPCONLY	F04C2220/50		81
F04C2230/00	7	Manufacture<br><br><u>NOTE</u><br><br>Manufacture comprises also treatment, assembly or disassembly methods, repairing, handling or the like.	CPCONLY	F04C2230/00		106
F04C2230/10	8	by removing material	CPCONLY	F04C2230/10		170
F04C2230/101	9	by electrochemical methods	CPCONLY	F04C2230/101		12
F04C2230/102	9	by spark erosion methods	CPCONLY	F04C2230/102		3
F04C2230/103	9	using lasers	CPCONLY	F04C2230/103		9
F04C2230/20	8	essentially without removing material	CPCONLY	F04C2230/20		126
F04C2230/21	9	by casting	CPCONLY	F04C2230/21		200
F04C2230/22	9	by sintering	CPCONLY	F04C2230/22		210
F04C2230/23	9	by permanently joining parts together	CPCONLY	F04C2230/23		39
F04C2230/231	10	by welding	CPCONLY	F04C2230/231		295
F04C2230/24	9	by extrusion	CPCONLY	F04C2230/24		34
F04C2230/25	9	by forging	CPCONLY	F04C2230/25		31
F04C2230/26	9	by rolling	CPCONLY	F04C2230/26		16
F04C2230/27	9	by hydroforming	CPCONLY	F04C2230/27		16
F04C2230/40	8	Heat treatment	CPCONLY	F04C2230/40		36
F04C2230/41	9	Hardening; Annealing	CPCONLY	F04C2230/41		45
F04C2230/60	8	Assembly methods	CPCONLY	F04C2230/60		787
F04C2230/601	9	Adjustment	CPCONLY	F04C2230/601		66
F04C2230/602	9	Gap; Clearance	CPCONLY	F04C2230/602		278
F04C2230/603	9	Centering; Aligning	CPCONLY	F04C2230/603		224
F04C2230/604	9	Mounting devices for pumps or compressors	CPCONLY	F04C2230/604		127
F04C2230/605	9	Balancing	CPCONLY	F04C2230/605		66
F04C2230/70	8	Disassembly methods	CPCONLY	F04C2230/70		137
F04C2230/80	8	Repairing methods	CPCONLY	F04C2230/80		86
F04C2230/85	8	Methods for improvement by repair or exchange of parts	CPCONLY	F04C2230/85		68
F04C2230/90	8	Improving properties of machine parts	CPCONLY	F04C2230/90		51
F04C2230/91	9	Coating	CPCONLY	F04C2230/91		554
F04C2230/92	9	Surface treatment	CPCONLY	F04C2230/92		158
F04C2240/00	7	Components	CPCONLY	F04C2240/00		2
F04C2240/10	8	Stators	CPCONLY	F04C2240/10		1383
F04C2240/102	9	with means for discharging condensate or liquid separated from the gas pumped	CPCONLY	F04C2240/102		23
F04C2240/20	8	Rotors	CPCONLY	F04C2240/20		3024
F04C2240/30	8	Casings or housings	CPCONLY	F04C2240/30		4087
F04C2240/40	8	Electric motor	CPCONLY	F04C2240/40		2382
F04C2240/401	9	Linear motor	CPCONLY	F04C2240/401		17
F04C2240/402	9	Plurality of electronically synchronised motors	CPCONLY	F04C2240/402		107
F04C2240/403	9	with inverter for speed control	CPCONLY	F04C2240/403		349
F04C2240/45	8	Hybrid prime mover	CPCONLY	F04C2240/45		144
F04C2240/50	8	Bearings	CPCONLY	F04C2240/50		1777
F04C2240/51	9	for cantilever assemblies	CPCONLY	F04C2240/51		131
F04C2240/52	9	for assemblies with supports on both sides	CPCONLY	F04C2240/52		332
F04C2240/54	9	Hydrostatic or hydrodynamic bearing assemblies specially adapted for rotary positive displacement pumps or compressors	CPCONLY	F04C2240/54		193
F04C2240/56	9	Bearing bushings or details thereof	CPCONLY	F04C2240/56		438
F04C2240/60	8	Shafts	CPCONLY	F04C2240/60		1187
F04C2240/601	9	Shaft flexion	CPCONLY	F04C2240/601		250
F04C2240/603	9	with internal channels for fluid distribution, e.g. hollow shaft	CPCONLY	F04C2240/603		689
F04C2240/605	9	Shaft sleeves or details thereof	CPCONLY	F04C2240/605		188
F04C2240/70	8	Use of multiplicity of similar components; Modular construction	CPCONLY	F04C2240/70		352
F04C2240/80	8	Other components	CPCONLY	F04C2240/80		611
F04C2240/801	9	Wear plates	CPCONLY	F04C2240/801		191
F04C2240/802	9	Liners	CPCONLY	F04C2240/802		128
F04C2240/803	9	Electric connectors or cables; Fittings therefor	CPCONLY	F04C2240/803		407
F04C2240/804	9	Accumulators for refrigerant circuits	CPCONLY	F04C2240/804		89
F04C2240/805	9	Fastening means, e.g. bolts	CPCONLY	F04C2240/805		627
F04C2240/806	9	Pipes for fluids; Fittings therefor	CPCONLY	F04C2240/806		478
F04C2240/807	9	Balance weight, counterweight	CPCONLY	F04C2240/807		546
F04C2240/808	9	Electronic circuits (e.g. inverters) installed inside the machine	CPCONLY	F04C2240/808		541
F04C2240/809	9	Lubricant sump	CPCONLY	F04C2240/809		326
F04C2240/81	9	Sensor, e.g. electronic sensor for control or monitoring	CPCONLY	F04C2240/81		473
F04C2240/811	9	Actuator for control, e.g. pneumatic, hydraulic, electric	CPCONLY	F04C2240/811		92
F04C2250/00	7	Geometry	CPCONLY	F04C2250/00		70
F04C2250/10	8	of the inlet or outlet	CPCONLY	F04C2250/10		165
F04C2250/101	9	of the inlet	CPCONLY	F04C2250/101		211
F04C2250/102	9	of the outlet	CPCONLY	F04C2250/102		240
F04C2250/20	8	of the rotor	CPCONLY	F04C2250/20		418
F04C2250/201	9	conical shape	CPCONLY	F04C2250/201		123
F04C2250/30	8	of the stator	CPCONLY	F04C2250/30		149
F04C2250/301	9	compression chamber profile defined by a mathematical expression or by parameters	CPCONLY	F04C2250/301		175
F04C2270/00	7	Control; Monitoring or safety arrangements	CPCONLY	F04C2270/00		7
F04C2270/01	8	Load	CPCONLY	F04C2270/01		38
F04C2270/015	9	Controlled or regulated	CPCONLY	F04C2270/015		18
F04C2270/02	8	Power	CPCONLY	F04C2270/02		40
F04C2270/025	9	Controlled or regulated	CPCONLY	F04C2270/025		33
F04C2270/03	8	Torque	CPCONLY	F04C2270/03		66
F04C2270/035	9	Controlled or regulated	CPCONLY	F04C2270/035		38
F04C2270/04	8	Force	CPCONLY	F04C2270/04		5
F04C2270/041	9	Controlled or regulated	CPCONLY	F04C2270/041		483
F04C2270/042	9	radial	CPCONLY	F04C2270/042		2
F04C2270/0421	10	Controlled or regulated	CPCONLY	F04C2270/0421		557
F04C2270/0422	10	centrifugal	CPCONLY	F04C2270/0422		4
F04C2270/04225	11	Controlled or regulated	CPCONLY	F04C2270/04225		1
F04C2270/044	9	axial	CPCONLY	F04C2270/044		7
F04C2270/0445	10	Controlled or regulated	CPCONLY	F04C2270/0445		5
F04C2270/05	8	Speed	CPCONLY	F04C2270/05		53
F04C2270/051	9	Controlled or regulated	CPCONLY	F04C2270/051		65
F04C2270/052	9	angular	CPCONLY	F04C2270/052		118
F04C2270/0525	10	Controlled or regulated	CPCONLY	F04C2270/0525		63
F04C2270/054	9	linear	CPCONLY	F04C2270/054		4
F04C2270/0545	10	Controlled or regulated	CPCONLY	F04C2270/0545		1
F04C2270/06	8	Acceleration	CPCONLY	F04C2270/06		9
F04C2270/065	9	Controlled or regulated	CPCONLY	F04C2270/065		5
F04C2270/07	8	Electric current	CPCONLY	F04C2270/07		73
F04C2270/075	9	Controlled or regulated	CPCONLY	F04C2270/075		30
F04C2270/08	8	Amplitude of electric current	CPCONLY	F04C2270/08		5
F04C2270/085	9	Controlled or regulated	CPCONLY	F04C2270/085		
F04C2270/09	8	Electric current frequency	CPCONLY	F04C2270/09		15
F04C2270/095	9	Controlled or regulated	CPCONLY	F04C2270/095		18
F04C2270/10	8	Voltage	CPCONLY	F04C2270/10		27
F04C2270/105	9	Controlled or regulated	CPCONLY	F04C2270/105		10
F04C2270/11	8	Magnetic flux	CPCONLY	F04C2270/11		7
F04C2270/115	9	Controlled or regulated	CPCONLY	F04C2270/115		2
F04C2270/12	8	Vibration	CPCONLY	F04C2270/12		343
F04C2270/125	9	Controlled or regulated	CPCONLY	F04C2270/125		104
F04C2270/13	8	Noise	CPCONLY	F04C2270/13		296
F04C2270/135	9	Controlled or regulated	CPCONLY	F04C2270/135		97
F04C2270/14	8	Pulsations	CPCONLY	F04C2270/14		58
F04C2270/145	9	Controlled or regulated	CPCONLY	F04C2270/145		33
F04C2270/15	8	Resonance	CPCONLY	F04C2270/15		17
F04C2270/155	9	Controlled or regulated	CPCONLY	F04C2270/155		7
F04C2270/16	8	Wear	CPCONLY	F04C2270/16		197
F04C2270/165	9	Controlled or regulated	CPCONLY	F04C2270/165		40
F04C2270/17	8	Tolerance; Play; Gap	CPCONLY	F04C2270/17		100
F04C2270/175	9	Controlled or regulated	CPCONLY	F04C2270/175		51
F04C2270/18	8	Pressure	CPCONLY	F04C2270/18		270
F04C2270/185	9	Controlled or regulated	CPCONLY	F04C2270/185		220
F04C2270/19	8	Temperature	CPCONLY	F04C2270/19		348
F04C2270/195	9	Controlled or regulated	CPCONLY	F04C2270/195		123
F04C2270/20	8	Flow	CPCONLY	F04C2270/20		108
F04C2270/205	9	Controlled or regulated	CPCONLY	F04C2270/205		70
F04C2270/21	8	Pressure difference	CPCONLY	F04C2270/21		54
F04C2270/215	9	Controlled or regulated	CPCONLY	F04C2270/215		21
F04C2270/22	8	Temperature difference	CPCONLY	F04C2270/22		10
F04C2270/225	9	Controlled or regulated	CPCONLY	F04C2270/225		8
F04C2270/23	8	Working cycle timing control	CPCONLY	F04C2270/23		18
F04C2270/24	8	Level of liquid, e.g. lubricant or cooling liquid	CPCONLY	F04C2270/24		76
F04C2270/40	8	Conditions across a pump or machine	CPCONLY	F04C2270/40		14
F04C2270/42	8	Conditions at the inlet of a pump or machine	CPCONLY	F04C2270/42		36
F04C2270/44	8	Conditions at the outlet of a pump or machine	CPCONLY	F04C2270/44		39
F04C2270/46	8	Conditions in the working chamber	CPCONLY	F04C2270/46		17
F04C2270/48	8	Conditions of a reservoir linked to a pump or machine	CPCONLY	F04C2270/48		24
F04C2270/50	8	Conditions before a throttle	CPCONLY	F04C2270/50		10
F04C2270/52	8	Conditions after a throttle	CPCONLY	F04C2270/52		14
F04C2270/54	8	Conditions in a control cylinder/piston unit	CPCONLY	F04C2270/54		5
F04C2270/56	8	Number of pump/machine units in operation	CPCONLY	F04C2270/56		95
F04C2270/58	8	Valve parameters	CPCONLY	F04C2270/58		57
F04C2270/585	9	Controlled or regulated	CPCONLY	F04C2270/585		35
F04C2270/60	8	Prime mover parameters	CPCONLY	F04C2270/60		37
F04C2270/605	9	Controlled or regulated	CPCONLY	F04C2270/605		21
F04C2270/70	8	Safety, emergency conditions or requirements	CPCONLY	F04C2270/70		83
F04C2270/701	9	Cold start	CPCONLY	F04C2270/701		98
F04C2270/72	9	preventing reverse rotation	CPCONLY	F04C2270/72		245
F04C2270/78	8	Warnings	CPCONLY	F04C2270/78		42
F04C2270/782	9	Sound	CPCONLY	F04C2270/782		7
F04C2270/784	9	Light	CPCONLY	F04C2270/784		10
F04C2270/80	8	Diagnostics	CPCONLY	F04C2270/80		271
F04C2270/86	8	Detection	CPCONLY	F04C2270/86		280
F04C2270/90	8	Remote control, e.g. wireless, via LAN, by radio, or by a wired connection from a central computer	CPCONLY	F04C2270/90		61
F04C2280/00	7	Arrangements for preventing or removing deposits or corrosion	CPCONLY	F04C2280/00		20
F04C2280/02	8	Preventing solid deposits in pumps, e.g. in vacuum pumps with chemical vapour deposition [CVD] processes	CPCONLY	F04C2280/02		107
F04C2280/04	8	Preventing corrosion	CPCONLY	F04C2280/04		76
