F15D1/00	7	Influencing flow of fluids	F15D1/00	F15D1/00		401
F15D1/0005	8	{Baffle plates}	F15D1/00	F15D1/00		190
F15D1/001	8	{Flow of fluid from conduits such as pipes, sleeves, tubes, with equal distribution of fluid flow over the evacuation surface}	F15D1/00	F15D1/00		212
F15D1/0015	8	{Whirl chambers, e.g. vortex valves}	F15D1/00	F15D1/00		319
F15D1/002	8	{by influencing the boundary layer}	F15D1/00	F15D1/00		36
F15D1/0025	9	{using passive means, i.e. without external energy supply}	F15D1/00	F15D1/00		77
F15D1/003	10	{comprising surface features, e.g. indentations or protrusions (F15D1/0055, F15D1/006 take precedence)}	F15D1/00	F15D1/00		179
F15D1/0035	11	{in the form of riblets}	F15D1/00	F15D1/00		77
F15D1/004	12	{oriented essentially parallel to the direction of flow}	F15D1/00	F15D1/00		97
F15D1/0045	12	{oriented essentially perpendicular to the direction of flow}	F15D1/00	F15D1/00		44
F15D1/005	11	{in the form of dimples}	F15D1/00	F15D1/00		94
F15D1/0055	10	{comprising apertures in the surface, through which fluid is withdrawn from or injected into the flow}	F15D1/00	F15D1/00		54
F15D1/006	10	{comprising moving surfaces, wherein the surface, or at least a portion thereof is moved or deformed by the fluid flow}	F15D1/00	F15D1/00		52
F15D1/0065	9	{using active means, e.g. supplying external energy or injecting fluid}	F15D1/00	F15D1/00		47
F15D1/007	10	{comprising surfaces being moved by external supplied energy}	F15D1/00	F15D1/00		72
F15D1/0075	10	{comprising electromagnetic or electrostatic means for influencing the state of the fluid, e.g. for ionising the fluid or for generating a plasma}	F15D1/00	F15D1/00		87
F15D1/008	10	{comprising fluid injection or suction means}	F15D1/00	F15D1/00		156
F15D1/0085	9	{Methods of making characteristic surfaces for influencing the boundary layer}	F15D1/00	F15D1/00		68
F15D1/009	8	{by means of vortex rings}	F15D1/00	F15D1/00		126
F15D1/0095	8	{by means of injecting jet pulses of fluid wherein the injected fluid is taken from the fluid and re-injected again, e.g. synthetic jet actuators (F15D1/008 takes precedence)}	F15D1/00	F15D1/00		40
F15D1/02	8	in pipes or conduits	F15D1/02	F15D1/02		984
F15D1/025	9	{by means of orifice or throttle elements}	F15D1/02	F15D1/02		419
F15D1/04	9	Arrangements of guide vanes in pipe elbows or duct bends; Construction of pipe conduit elements for elbows with respect to flow, e.g. for reducing losses of flow	F15D1/04	F15D1/04		443
F15D1/06	9	by influencing the boundary layer	F15D1/06	F15D1/06		277
F15D1/065	10	{Whereby an element is dispersed in a pipe over the whole length or whereby several elements are regularly distributed in a pipe}	F15D1/06	F15D1/06		148
F15D1/08	8	of jets leaving an orifice	F15D1/08	F15D1/08		296
F15D1/10	8	around bodies of solid material	F15D1/10	F15D1/10		307
F15D1/12	9	by influencing the boundary layer	F15D1/12	F15D1/12		616
F15D1/14	8	Diverting flow into alternative channels	F15D1/14	F15D1/14		135
