F28D1/00	7	Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators (F28D5/00 takes precedence)	F28D1/00	F28D1/00		458
F28D1/02	8	with heat-exchange conduits immersed in the body of fluid	F28D1/02	F28D1/02		426
F28D1/0206	9	{Heat exchangers immersed in a large body of liquid (apparatus using liquid heat storage material F28D20/0034)}	F28D1/02	F28D1/02		137
F28D1/0213	10	{for heating or cooling a liquid in a tank}	F28D1/02	F28D1/02		592
F28D1/022	10	{for immersion in a natural body of water, e.g. marine radiators}	F28D1/02	F28D1/02		241
F28D1/0226	9	{with an intermediate heat-transfer medium, e.g. thermosiphon radiators}	F28D1/02	F28D1/02		299
F28D1/0233	9	{with air flow channels}	F28D1/02	F28D1/02		520
F28D1/024	10	{with an air driving element}	F28D1/02	F28D1/02		1632
F28D1/0246	9	{heat-exchange elements having several adjacent conduits forming a whole, e.g. blocks}	F28D1/02	F28D1/02		487
F28D2001/0253	9	{Particular components}	F28D1/02	F28D1/02		30
F28D2001/026	10	{Cores}	F28D1/02	F28D1/02		44
F28D2001/0266	11	{Particular core assemblies, e.g. having different orientations or having different geometric features}	F28D1/02	F28D1/02		278
F28D2001/0273	11	{having special shape, e.g. curved, annular}	F28D1/02	F28D1/02		347
F28D2001/028	11	{with empty spaces or with additional elements integrated into the cores}	F28D1/02	F28D1/02		91
F28D2001/0286	10	{Radiating plates;  Decorative panels}	F28D1/02	F28D1/02		86
F28D2001/0293	11	{with grooves for integration of conduits}	F28D1/02	F28D1/02		21
F28D1/03	9	with plate-like or laminated conduits {(stacked plates having one or more openings therein to form tubular heat-exchange passages F28F3/086)}	F28D1/03	F28D1/03		637
F28D1/0308	10	{the conduits being formed by paired plates touching each other (F28D1/0358 takes precedence)}	F28D1/03	F28D1/03		732
F28D1/0316	11	{Assemblies of conduits in parallel (F28D1/0325, F28D1/035 take precedence)}	F28D1/03	F28D1/03		547
F28D1/0325	11	{the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another}	F28D1/03	F28D1/03		263
F28D1/0333	12	{the plates having integrated connecting members}	F28D1/03	F28D1/03		704
F28D1/0341	13	{with U-flow or serpentine-flow inside the conduits}	F28D1/03	F28D1/03		604
F28D1/035	11	{with U-flow or serpentine-flow inside the conduits (F28D1/0341 takes precedence)}	F28D1/03	F28D1/03		418
F28D1/0358	10	{the conduits being formed by bent plates}	F28D1/03	F28D1/03		488
F28D1/0366	10	{the conduits being formed by spaced plates with inserted elements (F28D1/0358 takes precedence)}	F28D1/03	F28D1/03		186
F28D1/0375	11	{the plates having lateral openings therein for circulation of the heat-exchange medium from one conduit to another}	F28D1/03	F28D1/03		59
F28D1/0383	11	{with U-flow or serpentine-flow inside the conduits}	F28D1/03	F28D1/03		85
F28D1/0391	10	{a single plate being bent to form one or more conduits}	F28D1/03	F28D1/03		851
F28D1/04	9	with tubular conduits {(F28D1/0246 takes precedence)}	F28D1/04	F28D1/04		786
F28D1/0408	10	{Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids (F28F9/0234 takes precedence)}	F28D1/04	F28D1/04		329
F28D1/0417	11	{with particular circuits for the same heat exchange medium, e.g. with the heat exchange medium flowing through sections having different heat exchange capacities or for heating/cooling the heat exchange medium at different temperatures}	F28D1/04	F28D1/04		431
F28D1/0426	11	{with units having particular arrangement relative to the large body of fluid, e.g. with interleaved units or with adjacent heat exchange units in common air flow or with units extending at an angle to each other or with units arranged around a central element}	F28D1/04	F28D1/04		352
F28D1/0435	12	{Combination of units extending one behind the other (F28D1/0452 takes precedence)}	F28D1/04	F28D1/04		958
F28D1/0443	12	{Combination of units extending one beside or one above the other (F28D1/0452 takes precedence)}	F28D1/04	F28D1/04		532
F28D1/0452	12	{Combination of units extending one behind the other with units extending one beside or one above the other}	F28D1/04	F28D1/04		126
F28D1/0461	11	{Combination of different types of heat exchanger, e.g. radiator combined with tube-and-shell heat exchanger; Arrangement of conduits for heat exchange between at least two media and for heat exchange between at least one medium and the large body of fluid}	F28D1/04	F28D1/04		202
F28D1/047	10	the conduits being bent, e.g. in a serpentine or zig-zag	F28D1/047	F28D1/047		860
F28D1/0471	11	{the conduits having a non-circular cross-section (F28D1/0473, F28D1/0476, F28D1/0478 take precedence)}	F28D1/047	F28D1/047		267
F28D1/0472	11	{the conduits being helically or spirally coiled}	F28D1/047	F28D1/047		655
F28D1/0473	12	{the conduits having a non-circular cross-section}	F28D1/047	F28D1/047		92
F28D1/0475	11	{the conduits having a single U-bend}	F28D1/047	F28D1/047		385
F28D1/0476	12	{the conduits having a non-circular cross-section}	F28D1/047	F28D1/047		261
F28D1/0477	11	{the conduits being bent in a serpentine or zig-zag}	F28D1/047	F28D1/047		2299
F28D1/0478	12	{the conduits having a non-circular cross-section}	F28D1/047	F28D1/047		624
F28D1/053	10	the conduits being straight	F28D1/053	F28D1/053		1587
F28D1/05308	11	{Assemblies of conduits connected side by side or with individual headers, e.g. section type radiators (F28D1/05358 takes precedence)}	F28D1/053	F28D1/053		491
F28D1/05316	11	{Assemblies of conduits connected to common headers, e.g. core type radiators (F28D1/05366 takes precedence)}	F28D1/053	F28D1/053		970
F28D1/05325	12	{with particular pattern of flow, e.g. change of flow direction (F28D1/05341 takes precedence)}	F28D1/053	F28D1/053		297
F28D1/05333	12	{with multiple rows of conduits or with multi-channel conduits (F28D1/05341 takes precedence)}	F28D1/053	F28D1/053		671
F28D1/05341	12	{with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators}	F28D1/053	F28D1/053		269
F28D1/0535	11	{the conduits having a non-circular cross-section}	F28D1/053	F28D1/053		695
F28D1/05358	12	{Assemblies of conduits connected side by side or with individual headers, e.g. section type radiators}	F28D1/053	F28D1/053		359
F28D1/05366	12	{Assemblies of conduits connected to common headers, e.g. core type radiators}	F28D1/053	F28D1/053		2063
F28D1/05375	13	{with particular pattern of flow, e.g. change of flow direction (F28D1/05391 takes precedence)}	F28D1/053	F28D1/053		574
F28D1/05383	13	{with multiple rows of conduits or with multi-channel conduits (F28D1/05391 takes precedence)}	F28D1/053	F28D1/053		1036
F28D1/05391	13	{with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators}	F28D1/053	F28D1/053		1402
F28D1/06	8	with the heat-exchange conduits forming part of, or being attached to, the tank containing the body of fluid	F28D1/06	F28D1/06		1031
F28D3/00	7	Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium flows in a continuous film, or trickles freely, over the conduits (F28D5/00 takes precedence)	F28D3/00	F28D3/00		302
F28D3/02	8	with tubular conduits	F28D3/02	F28D3/02		922
F28D3/04	8	Distributing arrangements	F28D3/04	F28D3/04		440
F28D5/00	7	Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, using the cooling effect of natural or forced evaporation	F28D5/00	F28D5/00		837
F28D5/02	8	in which the evaporating medium flows in a continuous film or trickles freely over the conduits	F28D5/02	F28D5/02		1161
F28D7/00	7	Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall	F28D7/00	F28D7/00		1617
F28D7/0008	8	{the conduits for one medium being in heat conductive contact with the conduits for the other medium}	F28D7/00	F28D7/00		618
F28D7/0016	9	{the conduits for one medium or the conduits for both media being bent (F28D7/0033 takes precedence)}	F28D7/00	F28D7/00		402
F28D7/0025	9	{the conduits for one medium or the conduits for both media being flat tubes or arrays of tubes}	F28D7/00	F28D7/00		405
F28D7/0033	10	{the conduits for one medium or the conduits for both media being bent}	F28D7/00	F28D7/00		202
F28D7/0041	8	{the conduits for only one medium being tubes having parts touching each other or tubes assembled in panel form (F28D7/0008, F28D7/0058 take precedence)}	F28D7/00	F28D7/00		566
F28D7/005	8	{the conduits for only one medium being tubes having bent portions or being assembled from bent tubes or being tubes having a toroidal configuration (F28D7/0008, F28D7/02, F28D7/04, F28D7/06, F28D7/14 take precedence)}	F28D7/00	F28D7/00		375
F28D7/0058	8	{the conduits for only one medium being tubes having different orientations to each other or crossing the conduit for the other heat exchange medium (F28D7/0008 takes precedence)}	F28D7/00	F28D7/00		311
F28D7/0066	8	{Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids (F28D7/103 takes precedence)}	F28D7/00	F28D7/00		1003
F28D7/0075	9	{with particular circuits for the same heat exchange medium, e.g. with the same heat exchange medium flowing through sections having different heat exchange capacities or for heating or cooling the same heat exchange medium at different temperatures}	F28D7/00	F28D7/00		228
F28D7/0083	9	{with units having particular arrangement relative to a supplementary heat exchange medium, e.g. with interleaved units or with adjacent units arranged in common flow of supplementary heat exchange medium}	F28D7/00	F28D7/00		332
F28D7/0091	10	{the supplementary medium flowing in series through the units}	F28D7/00	F28D7/00		220
F28D7/02	8	the conduits being helically coiled (F28D7/10 takes precedence {F28D7/0016 and F28D7/0033 take precedence})	F28D7/02	F28D7/02		788
F28D7/022	9	{the conduits of two or more media in heat-exchange relationship being helically coiled, the coils having a cylindrical configuration}	F28D7/02	F28D7/02		588
F28D7/024	9	{the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration}	F28D7/02	F28D7/02		3038
F28D7/026	9	{the conduits of only one medium being helically coiled and formed by bent members, e.g. plates, the coils having a cylindrical configuration}	F28D7/02	F28D7/02		428
F28D7/028	9	{the conduits of at least one medium being helically coiled, the coils having a conical configuration}	F28D7/02	F28D7/02		144
F28D7/04	8	the conduits being spirally coiled (F28D7/10 takes precedence){(F28D7/0016 and F28D7/0033 take precedence)}	F28D7/04	F28D7/04		940
F28D7/06	8	the conduits having a single U-bend (F28D7/10 takes precedence){(F28D7/0016 and F28D7/0033 take precedence)}	F28D7/06	F28D7/06		1766
F28D7/08	8	the conduits being otherwise bent, e.g. in a serpentine or zig-zag (F28D7/10 takes precedence){(F28D7/0016 and F28D7/0033 take precedence)}	F28D7/08	F28D7/08		1568
F28D7/082	9	{with serpentine or zig-zag configuration}	F28D7/08	F28D7/08		1407
F28D7/085	10	{in the form of parallel conduits coupled by bent portions}	F28D7/08	F28D7/08		558
F28D7/087	11	{assembled in arrays, each array being arranged in the same plane}	F28D7/08	F28D7/08		365
F28D7/10	8	the conduits being arranged one within the other, e.g. concentrically {(multiple wall tubes for leak detection F28F1/003)}	F28D7/10	F28D7/10		1470
F28D7/103	9	{consisting of more than two coaxial conduits or modules of more than two coaxial conduits}	F28D7/10	F28D7/10		1028
F28D7/106	9	{consisting of two coaxial conduits or modules of two coaxial conduits}	F28D7/10	F28D7/10		2520
F28D7/12	9	the surrounding tube being closed at one end, e.g. return type (F28D7/14 takes precedence)	F28D7/12	F28D7/12		887
F28D7/14	9	both tubes being bent	F28D7/14	F28D7/14		458
F28D7/16	8	the conduits being arranged in parallel spaced relation ({F28D7/0008&#160;-&#160;F28D7/0058 take precedence}; F28D7/02 - F28D7/10 take precedence)	F28D7/16	F28D7/16		3827
F28D7/1607	9	{with particular pattern of flow of the heat exchange media, e.g. change of flow direction (F28D7/1623, F28D7/1638, F28D7/1661, F28D7/1676, F28D7/1692 take precedence)}	F28D7/16	F28D7/16		1036
F28D7/1615	9	{the conduits being inside a casing and extending at an angle to the longitudinal axis of the casing; the conduits crossing the conduit for the other heat exchange medium}	F28D7/16	F28D7/16		465
F28D7/1623	10	{with particular pattern of flow of the heat exchange media, e.g. change of flow direction}	F28D7/16	F28D7/16		335
F28D7/163	9	{with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing (F28D7/1615 takes precedence)}	F28D7/16	F28D7/16		615
F28D7/1638	10	{with particular pattern of flow or the heat exchange medium flowing inside the conduits assemblies, e.g. change of flow direction from one conduit assembly to another one (F28D7/1661, F28D7/1676 take precedence)}	F28D7/16	F28D7/16		313
F28D7/1646	11	{with particular pattern of flow of the heat exchange medium flowing outside the conduit assemblies, e.g. change of flow direction}	F28D7/16	F28D7/16		197
F28D7/1653	10	{the conduit assemblies having a square or rectangular shape}	F28D7/16	F28D7/16		305
F28D7/1661	11	{with particular pattern of flow of the heat exchange media, e.g. change of flow direction}	F28D7/16	F28D7/16		112
F28D7/1669	10	{the conduit assemblies having an annular shape; the conduits being assembled around a central distribution tube}	F28D7/16	F28D7/16		535
F28D7/1676	11	{with particular pattern of flow of the heat exchange media, e.g. change of flow direction}	F28D7/16	F28D7/16		158
F28D7/1684	9	{the conduits having a non-circular cross-section}	F28D7/16	F28D7/16		816
F28D7/1692	10	{with particular pattern of flow of the heat exchange media, e.g. change of flow direction}	F28D7/16	F28D7/16		251
F28D9/00	7	Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall {(F28F3/083, F28F3/086 take precedence)}	F28D9/00	F28D9/00		2683
F28D9/0006	8	{the plate-like or laminated conduits being enclosed within a pressure vessel}	F28D9/00	F28D9/00		519
F28D9/0012	8	{the apparatus having an annular form}	F28D9/00	F28D9/00		453
F28D9/0018	9	{without any annular circulation of the heat exchange media}	F28D9/00	F28D9/00		270
F28D9/0025	8	{the conduits being formed by zig-zag bend plates}	F28D9/00	F28D9/00		619
F28D9/0031	8	{the conduits for one heat-exchange medium being formed by paired plates touching each other (F28D9/0012, F28D9/0025, F28D9/0081, F28D9/04 take precedence)}	F28D9/00	F28D9/00		948
F28D9/0037	9	{the conduits for the other heat-exchange medium also being formed by paired plates touching each other (F28D9/0043 takes precedence)}	F28D9/00	F28D9/00		1882
F28D9/0043	9	{the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another}	F28D9/00	F28D9/00		1031
F28D9/005	10	{the plates having openings therein for both heat-exchange media}	F28D9/00	F28D9/00		2156
F28D9/0056	10	{with U-flow or serpentine-flow inside conduits; with centrally arranged openings on the plates}	F28D9/00	F28D9/00		414
F28D9/0062	8	{the conduits for one heat-exchange medium being formed by spaced plates with inserted elements (F28D9/0012, F28D9/0025, F28D9/0081, F28D9/04 take precedence)}	F28D9/00	F28D9/00		1331
F28D9/0068	9	{with means for changing flow direction of one heat exchange medium, e.g. using deflecting zones}	F28D9/00	F28D9/00		594
F28D9/0075	9	{the plates having openings therein for circulation of the heat-exchange medium from one conduit to another}	F28D9/00	F28D9/00		400
F28D9/0081	8	{the conduits for one heat-exchange medium being formed by a single plate-like element (F28D9/0012 takes precedence); the conduits for one heat-exchange medium being integrated in one single plate-like element (F28D9/0012 takes precedence)}	F28D9/00	F28D9/00		466
F28D9/0087	8	{with flexible plates}	F28D9/00	F28D9/00		77
F28D9/0093	8	{Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids}	F28D9/00	F28D9/00		1032
F28D9/02	8	the heat-exchange media travelling at an angle to one another (F28D9/04 takes precedence)	F28D9/02	F28D9/02		279
F28D9/04	8	the conduits being formed by spirally-wound plates or laminae	F28D9/04	F28D9/04		1092
F28D11/00	7	Heat-exchange apparatus employing moving conduits {(F28D15/0208 takes precedence)}	F28D11/00	F28D11/00		106
F28D11/02	8	the movement being rotary, e.g. performed by a drum or roller (F28D11/08 takes precedence)	F28D11/02	F28D11/02		765
F28D11/025	9	{Motor car radiators}	F28D11/02	F28D11/02		46
F28D11/04	9	performed by a tube or a bundle of tubes	F28D11/04	F28D11/04		483
F28D11/06	8	the movement being reciprocating or oscillating (F28D11/08 takes precedence)	F28D11/06	F28D11/06		70
F28D11/08	8	more than one conduit assembly performing independent movements, e.g. rotary bundle of tubes in a rotary drum	F28D11/08	F28D11/08		35
F28D13/00	7	Heat-exchange apparatus using a fluidised bed	F28D13/00	F28D13/00		655
F28D15/00	7	Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls {; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies (F28D17/00, F28D19/00, F28D20/00 take precedence)}	F28D15/00	F28D15/00		1600
F28D15/02	8	in which the medium condenses and evaporates, e.g. heat pipes {(heat pipes used in solar heat collectors F24S10/95; in radiators F28D1/0226; in nuclear reactors G21C15/257)}	F28D15/02	F28D15/02		4080
F28D15/0208	9	{using moving tubes}	F28D15/02	F28D15/02		172
F28D2015/0216	9	{having particular orientation, e.g. slanted, or being orientation-independent}	F28D15/02	F28D15/02		193
F28D2015/0225	9	{Microheat pipes}	F28D15/02	F28D15/02		208
F28D15/0233	9	{the conduits having a particular shape, e.g. non-circular cross-section, annular (F28D15/0241, F28D15/0266 take precedence)}	F28D15/02	F28D15/02		3870
F28D15/0241	9	{the tubes being flexible}	F28D15/02	F28D15/02		306
F28D15/025	9	{having non-capillary condensate return means}	F28D15/02	F28D15/02		476
F28D15/0258	9	{with means to remove contaminants, e.g. getters}	F28D15/02	F28D15/02		112
F28D15/0266	9	{with separate evaporating and condensing chambers connected by at least one conduit; Loop-type heat pipes; with multiple or common evaporating or condensing chambers (F28D15/043 takes precedence)}	F28D15/02	F28D15/02		4534
F28D15/0275	9	{Arrangements for coupling heat-pipes together or with other structures, e.g. with base blocks; Heat pipe cores}	F28D15/02	F28D15/02		4487
F28D15/0283	9	{Means for filling or sealing heat pipes}	F28D15/02	F28D15/02		1110
F28D2015/0291	9	{comprising internal rotor means, e.g. turbine driven by the working fluid}	F28D15/02	F28D15/02		145
F28D15/04	9	with tubes having a capillary structure	F28D15/04	F28D15/04		1981
F28D15/043	10	{forming loops, e.g. capillary pumped loops}	F28D15/04	F28D15/04		829
F28D15/046	10	{characterised by the material or the construction of the capillary structure}	F28D15/04	F28D15/04		3566
F28D15/06	9	Control arrangements therefor	F28D15/06	F28D15/06		1101
F28D17/00	7	Regenerative heat-exchange apparatus in which a stationary intermediate heat-transfer medium or body is contacted successively by each heat-exchange medium, e.g. using granular particles	F28D17/00	F28D17/00		593
F28D17/005	8	{using granular particles}	F28D17/00	F28D17/00		191
F28D17/02	8	using rigid bodies, e.g. of porous material	F28D17/02	F28D17/02		885
F28D17/023	9	{Sealing means}	F28D17/02	F28D17/02		53
F28D17/026	9	{Bearings; Driving means}	F28D17/02	F28D17/02		16
F28D17/04	8	Distributing arrangements for the heat-exchange media	F28D17/04	F28D17/04		267
F28D19/00	7	Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium {(F28D15/02 takes precedence)}	F28D19/00	F28D19/00		248
F28D19/02	8	using granular particles	F28D19/02	F28D19/02		174
F28D19/04	8	using rigid bodies, e.g. mounted on a movable carrier	F28D19/04	F28D19/04		555
F28D19/041	9	{with axial flow through the intermediate heat-transfer medium}	F28D19/04	F28D19/04		385
F28D19/042	10	{Rotors; Assemblies of heat absorbing masses}	F28D19/04	F28D19/04		370
F28D19/044	11	{shaped in sector form, e.g. with baskets}	F28D19/04	F28D19/04		282
F28D19/045	9	{with radial flow through the intermediate heat-transfer medium}	F28D19/04	F28D19/04		120
F28D19/047	9	{Sealing means}	F28D19/04	F28D19/04		787
F28D19/048	9	{Bearings; Driving means}	F28D19/04	F28D19/04		228
F28D20/00	7	Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00	F28D20/00	F28D20/00		2479
F28D2020/0004	8	{Particular heat storage apparatus}	F28D20/00	F28D20/00		195
F28D2020/0008	9	{the heat storage material being enclosed in plate-like or laminated elements, e.g. in plates having internal compartments}	F28D20/00	F28D20/00		392
F28D2020/0013	9	{the heat storage material being enclosed in elements attached to or integral with heat exchange conduits}	F28D20/00	F28D20/00		445
F28D2020/0017	9	{the heat storage material being enclosed in porous or cellular or fibrous structures}	F28D20/00	F28D20/00		115
F28D2020/0021	9	{the heat storage material being enclosed in loose or stacked elements}	F28D20/00	F28D20/00		191
F28D2020/0026	9	{the heat storage material being enclosed in mobile containers for transporting thermal energy}	F28D20/00	F28D20/00		193
F28D20/003	8	{using thermochemical reactions}	F28D20/00	F28D20/00		1048
F28D20/0034	8	{using liquid heat storage material}	F28D20/00	F28D20/00		3205
F28D20/0039	9	{with stratification of the heat storage material}	F28D20/00	F28D20/00		1052
F28D20/0043	9	{specially adapted for long-term heat storage; Underground tanks; Floating reservoirs; Pools; Ponds (F28D20/0052 takes precedence)}	F28D20/00	F28D20/00		449
F28D2020/0047	9	{using molten salts or liquid metals}	F28D20/00	F28D20/00		1181
F28D20/0052	8	{using the ground body or aquifers as heat storage medium}	F28D20/00	F28D20/00		857
F28D20/0056	8	{using solid heat storage material (F28D20/0052 takes precedence)}	F28D20/00	F28D20/00		2196
F28D2020/006	8	{Heat storage systems not otherwise provided for}	F28D20/00	F28D20/00		259
F28D2020/0065	8	{Details, e.g. particular heat storage tanks, auxiliary members within tanks}	F28D20/00	F28D20/00		467
F28D2020/0069	9	{Distributing arrangements;  Fluid deflecting means}	F28D20/00	F28D20/00		806
F28D2020/0073	10	{movable}	F28D20/00	F28D20/00		92
F28D2020/0078	9	{Heat exchanger arrangements}	F28D20/00	F28D20/00		1236
F28D2020/0082	9	{Multiple tanks arrangements, e.g. adjacent tanks, tank in tank}	F28D20/00	F28D20/00		761
F28D2020/0086	9	{Partitions}	F28D20/00	F28D20/00		332
F28D2020/0091	10	{flexible}	F28D20/00	F28D20/00		55
F28D2020/0095	10	{movable or floating}	F28D20/00	F28D20/00		122
F28D20/02	8	using latent heat	F28D20/02	F28D20/02		3491
F28D20/021	9	{the latent heat storage material and the heat-exchanging means being enclosed in one container (F28D20/023&#160;-&#160;F28D20/028 take precedence)}	F28D20/02	F28D20/02		2349
F28D20/023	9	{the latent heat storage material being enclosed in granular particles or dispersed in a porous, fibrous or cellular structure}	F28D20/02	F28D20/02		1382
F28D20/025	9	{the latent heat storage material being in direct contact with a heat-exchange medium or with another heat storage material (F28D20/003 takes precedence)}	F28D20/02	F28D20/02		339
F28D20/026	9	{with different heat storage materials not coming into direct contact}	F28D20/02	F28D20/02		289
F28D20/028	9	{Control arrangements therefor}	F28D20/02	F28D20/02		1050
F28D21/00	7	Heat-exchange apparatus not covered by any of the groups F28D1/00&#160;-&#160;F28D20/00<br><br><u>NOTE</u><br><br> Particular use of heat exchangers is classified in F28D21/00 and subgroups, whereas additionally the type of the heat exchangers is classified in the groups F28D1/00&#160;-&#160;F28D20/00	F28D21/00	F28D21/00		3027
F28D21/0001	8	{Recuperative heat exchangers}	F28D21/00	F28D21/00		951
F28D21/0003	9	{the heat being recuperated from exhaust gases (F28D21/0014 takes precedence)}	F28D21/00	F28D21/00		2579
F28D21/0005	10	{for domestic or space-heating systems}	F28D21/00	F28D21/00		129
F28D21/0007	11	{Water heaters}	F28D21/00	F28D21/00		1132
F28D21/0008	11	{Air heaters}	F28D21/00	F28D21/00		594
F28D21/001	10	{for thermal power plants or industrial processes}	F28D21/00	F28D21/00		734
F28D21/0012	9	{the heat being recuperated from waste water or from condensates}	F28D21/00	F28D21/00		1518
F28D21/0014	9	{the heat being recuperated from waste air or from vapors (for air conditioning F24F12/001)}	F28D21/00	F28D21/00		1565
F28D21/0015	8	{Heat and mass exchangers, e.g. with permeable walls}	F28D21/00	F28D21/00		484
F28D21/0017	8	{Flooded core heat exchangers (in large body of fluid F28D1/0206)}	F28D21/00	F28D21/00		176
F28D2021/0019	8	{Other heat exchangers for particular applications;  Heat exchange systems not otherwise provided for}	F28D21/00	F28D21/00		356
F28D2021/0021	9	{for aircrafts or cosmonautics}	F28D21/00	F28D21/00		712
F28D2021/0022	9	{for chemical reactors}	F28D21/00	F28D21/00		511
F28D2021/0024	9	{for combustion apparatus, e.g. for boilers}	F28D21/00	F28D21/00		610
F28D2021/0026	9	{for combustion engines, e.g. for gas turbines or for Stirling engines}	F28D21/00	F28D21/00		416
F28D2021/0028	9	{for cooling heat generating elements, e.g. for cooling electronic components or electric devices}	F28D21/00	F28D21/00		779
F28D2021/0029	10	{Heat sinks}	F28D21/00	F28D21/00		1809
F28D2021/0031	10	{Radiators for recooling a coolant of cooling systems}	F28D21/00	F28D21/00		410
F28D2021/0033	9	{for cryogenic applications}	F28D21/00	F28D21/00		399
F28D2021/0035	9	{for domestic or space heating, e.g. heating radiators}	F28D21/00	F28D21/00		1486
F28D2021/0036	10	{Radiators for drying, e.g. towel radiators}	F28D21/00	F28D21/00		215
F28D2021/0038	9	{for drying or dehumidifying gases or vapours}	F28D21/00	F28D21/00		217
F28D2021/004	9	{for engine or machine cooling systems}	F28D21/00	F28D21/00		187
F28D2021/0042	9	{for foodstuffs}	F28D21/00	F28D21/00		264
F28D2021/0043	9	{for fuel cells}	F28D21/00	F28D21/00		450
F28D2021/0045	9	{for granular materials}	F28D21/00	F28D21/00		179
F28D2021/0047	9	{for hydrogen or other compressed gas storage tanks}	F28D21/00	F28D21/00		77
F28D2021/0049	9	{for lubricants, e.g. oil coolers}	F28D21/00	F28D21/00		187
F28D2021/005	9	{for medical applications}	F28D21/00	F28D21/00		124
F28D2021/0052	9	{for mixers}	F28D21/00	F28D21/00		93
F28D2021/0054	9	{for nuclear applications}	F28D21/00	F28D21/00		542
F28D2021/0056	9	{for ovens or furnaces}	F28D21/00	F28D21/00		78
F28D2021/0057	10	{for melting materials}	F28D21/00	F28D21/00		20
F28D2021/0059	9	{for petrochemical plants}	F28D21/00	F28D21/00		194
F28D2021/0061	9	{for phase-change applications}	F28D21/00	F28D21/00		147
F28D2021/0063	10	{Condensers}	F28D21/00	F28D21/00		201
F28D2021/0064	10	{Vaporizers, e.g. evaporators}	F28D21/00	F28D21/00		590
F28D2021/0066	10	{with combined condensation and evaporation}	F28D21/00	F28D21/00		85
F28D2021/0068	9	{for refrigerant cycles}	F28D21/00	F28D21/00		931
F28D2021/007	10	{Condensers}	F28D21/00	F28D21/00		510
F28D2021/0071	10	{Evaporators}	F28D21/00	F28D21/00		818
F28D2021/0073	10	{Gas coolers}	F28D21/00	F28D21/00		234
F28D2021/0075	9	{for syngas or cracked gas cooling systems}	F28D21/00	F28D21/00		324
F28D2021/0077	9	{for tempering, e.g. with cooling or heating circuits for temperature control of elements}	F28D21/00	F28D21/00		273
F28D2021/0078	10	{in the form of cooling walls}	F28D21/00	F28D21/00		120
F28D2021/008	9	{for vehicles}	F28D21/00	F28D21/00		1007
F28D2021/0082	10	{Charged air coolers}	F28D21/00	F28D21/00		966
F28D2021/0084	10	{Condensers}	F28D21/00	F28D21/00		955
F28D2021/0085	10	{Evaporators}	F28D21/00	F28D21/00		804
F28D2021/0087	10	{Fuel coolers}	F28D21/00	F28D21/00		53
F28D2021/0089	10	{Oil coolers}	F28D21/00	F28D21/00		740
F28D2021/0091	10	{Radiators}	F28D21/00	F28D21/00		240
F28D2021/0092	11	{with particular location on vehicle, e.g. under floor or on roof}	F28D21/00	F28D21/00		57
F28D2021/0094	11	{for recooling the engine coolant}	F28D21/00	F28D21/00		765
F28D2021/0096	11	{for space heating}	F28D21/00	F28D21/00		280
F28D2021/0098	9	{for viscous or semi-liquid materials, e.g. for processing sludge}	F28D21/00	F28D21/00		95
