WebCPC CPC COOPERATIVE PATENT CLASSIFICATION

F01C　ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES (internal-combustion aspects F02B 53/00, 55/00)

F01C 1/00 Rotary-piston machines or engines (with axes of co-operating members non parallel F01C 3/00; with the working-chamber walls at least partly resiliently deformable F01C 5/00; with fluid ring or the like F01C 7/00; rotary-piston machines or engines in which the working fluid is exclusively displaced by, or exclusively displaces, one or more reciprocating pistons F01B 13/00)

F01C 1/02 ・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

F01C 1/0207 ・・{both members having co-operating elements in spiral form}

F01C 1/0215 ・・・{where only one member is moving}

F01C 1/0223 ・・・・{with symmetrical double wraps}

F01C 1/023 ・・・{where both members are moving}

F01C 1/0238 ・・・・{with symmetrical double wraps}

F01C 1/0246 ・・・{Details concerning the involute wraps or their base, e.g. geometry}

F01C 1/0253 ・・・・{Details concerning the base}

F01C 1/0261 ・・・・・{Details of the ports, e.g. location, number, geometry}

F01C 1/0269 ・・・・{Details concerning the involute wraps}

F01C 1/0276 ・・・・・{Different wall heights}

F01C 1/0284 ・・・・・{Details of the wrap tips}

F01C 1/0292 ・・・・・{Ports or channels located in the wrap}

F01C 1/04 ・・of internal-axis type

F01C 1/045 ・・・{having a C-shaped piston}

F01C 1/06 ・・of other than internal-axis type

F01C 1/063 ・・・with coaxially-mounted members having continuously-changing circumferential spacing between them

F01C 1/067 ・・・・having cam-and-follower type drive

F01C 1/07 ・・・・having crankshaft-and-connecting-rod type drive

F01C 1/073 ・・・・having pawl-and-ratchet type drive

F01C 1/077 ・・・・having toothed-gearing type drive

F01C 1/08 ・of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing

F01C 1/082 ・・{Details specially related to intermeshing engagement type machines or engines}

F01C 1/084 ・・・{Toothed wheels}

F01C 1/086 ・・・{Carter}

F01C 1/088 ・・・{Elements in the toothed wheels or the carter for relieving the pressure of fluid imprisoned in the zones of engagement}

F01C 1/10 ・・of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member

F01C 1/101 ・・・{Moineau-type}

F01C 1/102 ・・・{with a crescent shaped filler element located between the intermeshing elements}

F01C 1/103 ・・・{the two members rotating simultaneously around their respective axes}

F01C 1/104 ・・・{one member having simultaneously a rotational movement about its own axis and an orbital movement}

F01C 1/105 ・・・・{and having an articulated driving shaft}

F01C 1/107 ・・・with helical teeth

F01C 1/113 ・・・the inner member carrying rollers intermeshing with the outer member

F01C 1/12 ・・of other than internal-axis type

F01C 1/123 ・・・{with tooth-like elements, extending generally radially from the rotor body cooperating with recesses in the other rotor, e.g. one tooth}

F01C 1/126 ・・・{with elements extending radially from the rotor body not necessarily cooperating with corresponding recesses in the other rotor, e.g. lobes, Roots type}

F01C 1/14 ・・・with toothed rotary pistons

F01C 1/16 ・・・・with helical teeth, e.g. chevron-shaped, screw type {(for non-parallel axes of movement F01C 3/00)}

F01C 1/165 ・・・・・{having more than two rotary pistons with parallel axes}

F01C 1/18 ・・・・with similar tooth forms (F01C 1/16 takes precedence)

F01C 1/20 ・・・・with dissimilar tooth forms (F01C 1/16 takes precedence)

F01C 1/22 ・of internal-axis type with equidirectional movement of co-operating members at the point 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

F01C 1/24 ・of counter-engagement type, i.e. the movement of co-operating members at the points of engagement being in opposite directions

F01C 1/26 ・・of internal-axis type

F01C 1/28 ・・of other than internal-axis type

F01C 1/30 ・having the characteristics covered by two or more groups F01C 1/02, F01C 1/08, F01C 1/22, F01C 1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members

F01C 1/32 ・・having both the movement defined in group F01C 1/02 and relative reciprocation between the co-operating members

F01C 1/321 ・・・{with vanes hinged to the inner member and reciprocating with respect to the inner member}

F01C 1/322 ・・・{with vanes hinged to the outer member and reciprocating with respect to the outer member}

F01C 1/324 ・・・with vanes hinged to the inner member and reciprocating with respect to the outer member

F01C 1/328 ・・・・and hinged to the outer member

F01C 1/332 ・・・with vanes hinged to the outer member and reciprocating with respect to the inner member

F01C 1/336 ・・・・and hinged to the inner member

F01C 1/34 ・・having the movement defined in group F01C 1/08 or F01C 1/22 and relative reciprocation between the co-operating members

F01C 1/344 ・・・with vanes reciprocating with respect to the inner member

F01C 1/3441 ・・・・{the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation}

F01C 1/3442 ・・・・・{the surfaces of the inner and outer member, forming the working space, being surfaces of revolution}

F01C 1/3443 ・・・・・{with a separation element located between the inlet and outlet opening}

F01C 1/3445 ・・・・・{the vanes having the form of rollers, slippers or the like}

F01C 1/3446 ・・・・{the inner and outer member being in contact along more than one line or surface}

F01C 1/3447 ・・・・・{the vanes having the form of rollers, slippers or the like}

F01C 1/3448 ・・・・{with axially movable vanes}

F01C 1/348 ・・・・the vanes positively engaging, with circumferential play, an outer rotatable member

F01C 1/352 ・・・・the vanes being pivoted on the axis of the outer member

F01C 1/356 ・・・with vanes reciprocating with respect to the outer member

F01C 1/3562 ・・・・{the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation}

F01C 1/3564 ・・・・・{the surfaces of the inner and outer member, forming the working space, being surfaces of revolution}

F01C 1/3566 ・・・・{the inner and outer member being in contact along more than one line or surface}

F01C 1/3568 ・・・・{with axially movable vanes}

F01C 1/36 ・・having both the movements defined in sub-groups F01C 1/22 and F01C 1/24

F01C 1/38 ・・having the movement defined in group 1/02 and having a hinged member (F01C 1/32 takes precedence)

F01C 1/39 ・・・with vanes hinged to the inner as well as to the outer member

F01C 1/40 ・・having the movement defined in group F01C 1/08 or F01C 1/22 and having a hinged member

F01C 1/44 ・・・with vanes hinged to the inner member

F01C 1/46 ・・・with vanes hinged to the outer member

F01C 3/00 Rotary-piston machines or engines with non-parallel axes of movement of co-operating members (with the working-chamber walls being at least partly resiliently deformable F01C 5/00)

F01C 3/02 ・the axes being arranged at an angle of 90 degrees

F01C 3/025 ・・{of intermeshing engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing}

F01C 3/04 ・・with axially sliding vanes

F01C 3/06 ・the axes being arranged otherwise than at an angle of 90 degrees

F01C 3/08 ・・of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing

F01C 3/085 ・・・{the axes of cooperating members being on the same plane}

F01C 5/00 Rotary-piston machines or engines with the working-chamber walls at least partly resiliently deformable

F01C 5/02 ・the resiliently-deformable wall being part of the inner member, e.g. of a rotary piston

F01C 5/04 ・the resiliently-deformable wall being part of the outer member, e.g. of a housing

F01C 5/06 ・the resiliently-deformable wall being a separate member

F01C 5/08 ・・of tubular form, e.g. hose

F01C 7/00 Rotary-piston machines or engines with fluid ring or the like

F01C 9/00 Oscillating-piston machines or engines

F01C 9/002 ・{the piston oscillating around a fixed axis}

F01C 9/005 ・{the piston oscillating in the space, e.g. around a fixed point (rotary piston machines or engines with non-parallel axes of rotation between co-operating members F01C 3/00)}

F01C 9/007 ・{the points of the moving element describing approximately an alternating movement in axial direction with respect to the other element}

F01C 11/00 Combinations of two or more machines or engines, each being of rotary-piston or oscillating-piston type (F01C 13/00 takes precedence; combinations of two or more pumps F04; fluid gearing F16H)

F01C 11/002 ・{of similar working principle}

F01C 11/004 ・・{and of complementary function, e.g. internal combustion engine with supercharger}

F01C 11/006 ・{of dissimilar working principle}

F01C 11/008 ・・{and of complementary function, e.g. internal combustion engine with supercharger}

F01C 13/00 Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby (aspects predominantly concerning driven devices, see the relevant classes for these devices)

F01C 13/02 ・for driving hand-held tools or the like

F01C 13/04 ・for driving pumps or compressors

F01C 17/00 Arrangements for drive of co-operating members, e.g. for rotary piston and casing

F01C 17/02 ・of toothed-gearing type (F01C 1/077 takes precedence)

F01C 17/04 ・of cam-and-follower type (F01C 1/067 takes precedence)

F01C 17/06 ・using cranks, universal joints or similar elements (F01C 1/07 takes precedence)

F01C 17/063 ・・{with only rolling movement}

F01C 17/066 ・・{with an intermediate piece sliding along perpendicular axes, e.g. Oldham coupling}

F01C 19/00 Sealing arrangements in rotary-piston machines or engines (sealings in general F16J)

F01C 19/005 ・{Structure and composition of sealing elements such as sealing strips, sealing rings and the like; Coating of these elements (vane construction F01C 21/08B; piston rings and ring sealings of similar construction in general F16J 9/00)}

F01C 19/02 ・Radially-movable sealings for working fluid

F01C 19/025 ・・{Radial sealing elements specially adapted for intermeshing engagement type machines or engines, e.g. gear machines or engines}

F01C 19/04 ・・of rigid material

F01C 19/06 ・・of resilient material

F01C 19/08 ・Axially-movable sealings for working fluid

F01C 19/085 ・・{Elements specially adapted for sealing of the lateral faces of intermeshing-engagement type machines or engines, e.g. gear machines or engines}

F01C 19/10 ・Sealings for working fluids between radially and axially movable parts

F01C 19/12 ・for other than working fluid

F01C 19/125 ・・{Shaft sealings specially adapted for rotary or oscillating-piston machines or engines}

F01C 20/00 Control of, monitoring of, or safety arrangements for, machines or engines

F01C 20/02 ・specially adapted for several machines or engines connected in series or in parallel

F01C 20/04 ・specially adapted for reversible machines or engines

F01C 20/06 ・specially adapted for stopping, starting, idling or no-load operation

F01C 20/08 ・characterised by varying the rotational speed

F01C 20/10 ・characterised by changing the position of the inlet or outlet openings with respect to the working chamber

F01C 20/12 ・・using sliding valves

F01C 20/125 ・・・{with sliding valves controlled by the use of fluid other than the working fluid}

F01C 20/14 ・・using rotating valves

F01C 20/16 ・・using lift valves

F01C 20/18 ・characterised by varying the volume of the working chamber (by changing the positions of inlet or outlet openings F01C 20/10)

F01C 20/185 ・・{by varying the useful pumping length of the cooperating members in the axial direction}

F01C 20/20 ・・by changing the form of the inner or outlet contour of the working chamber

F01C 20/22 ・・by changing the eccentricity between cooperating members

F01C 20/24 ・characterised by using valves regulating pressure or flow rate, e.g. discharge valves, unloading valves (F01C 20/10 takes precedence)

F01C 20/26 ・・using bypass channels

F01C 20/265 ・・・{being obtained by displacing a lateral sealing face}

F01C 20/28 ・Safety arrangements; Monitoring

F01C 21/00 Component parts, details or accessories not provided for in groups F01C 1/00 to F01C 20/00

F01C 21/001 ・{Injection of a fluid in the working chamber for sealing, cooling and lubricating (sealing only F01C 17/00; lubrication only F01C 21/04; cooling only F01C 21/06; injecting water or steam in internal combustion engines F02B 47/02, F02D 21/00, F02M 25/00)}

F01C 21/002 ・・{with control systems for the injection of the fluid}

F01C 21/003 ・{Systems for the equilibration of forces acting on the elements of the machine (interstice adjustment other than by fluid pressure F01C 21/102)}

F01C 21/005 ・・{Internal leakage control}

F01C 21/006 ・・{Equalization of pressure pulses (silencing for compressors F04C 29/06)}

F01C 21/007 ・{General arrangements of parts; Frames and supporting elements}

F01C 21/008 ・{Driving elements, brakes, couplings, transmissions specially adapted for rotary or oscillating-piston machines or engines (brakes, couplings, transmissions per se F16, B60)}

F01C 21/02 ・Arrangements of bearings (bearing constructions F16C)

F01C 21/04 ・Lubrication (of machines or engines in general F01M)

F01C 21/045 ・・{Control systems for the circulation of the lubricant}

F01C 21/06 ・Heating; Cooling (of machines or engines in general F01P); Heat insulation (heat insulation in general F16L)

F01C 21/08 ・Rotary pistons (reciprocating piston in general F16J)

F01C 21/0809 ・・{Construction of vanes or vane holders}

F01C 21/0818 ・・・{Vane tracking; control therefor}

F01C 21/0827 ・・・・{by mechanical means}

F01C 21/0836 ・・・・・{comprising guiding means, e.g. cams, rollers}

F01C 21/0845 ・・・・・{comprising elastic means, e.g. springs}

F01C 21/0854 ・・・・{by fluid means}

F01C 21/0863 ・・・・・{the fluid being the working fluid}

F01C 21/0872 ・・・・・{the fluid being other than the working fluid}

F01C 21/0881 ・・・{the vanes consisting of two or more parts}

F01C 21/089 ・・・{for synchronised movement of the vanes}

F01C 21/10 ・Outer members for co-operation with rotary pistons; Casings (casings for rotary engines or machines in general F16M)

F01C 21/102 ・・{Adjustment of the interstices between moving and fixed parts of the machine by means other than fluid pressure}

F01C 21/104 ・・{Stators; Members defining the outer boundaries of the working chamber}

F01C 21/106 ・・・{with a radial surface, e.g. cam rings}

F01C 21/108 ・・・{with an axial surface, e.g. side plates}

F01C 21/18 ・Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet

F01C 21/183 ・・{Arrangements for supercharging the working space (similar arrangements for internal combustion engines F02B 33/00, F02B 27/00)}

F01C 21/186 ・・{for variable fluid distribution}

F01C 2021/00 Component parts, details or accessories not provided for in groups F01C 1/00 to F01C 20/00

F01C 2021/12 ・Control of working fluid admission or discharge

F01C 2021/125 ・・Arrangements for supercharging the working space

F01C 2021/14 ・・for variable fluid distribution

F01C 2021/16 ・Other regulation or control

F01C 2021/1606 ・・Variation of the working chamber

F01C 2021/1612 ・・・by changing the eccentricity of an element with respect to another element

F01C 2021/1618 ・・・by changing the positions of the inlet and outlet openings with respect to the working chambers

F01C 2021/1625 ・・・・with sliding or rotating valves, adjustable in position

F01C 2021/1631 ・・・・・with sliding valves controlled by the use of fluid other than the working fluid

F01C 2021/1637 ・・・by changing the form of the radially inner or the radially outer contour of the working chamber

F01C 2021/1643 ・・by using valves regulating pressure and flow rate, e.g. discharge valves

F01C 2021/165 ・・・using a by-pass channel

F01C 2021/1656 ・・・・being obtained by displacing a lateral sealing face

F01C 2021/1662 ・・・with venting means

F01C 2021/1668 ・・with several machines or engines connected in series or in parallel

F01C 2021/1675 ・・with reversible machines or engines

F01C 2021/1681 ・・by varying the rotational speed

F01C 2021/1687 ・・Safety arrangements

F01C 2021/1693 ・・Stopping or starting, idling or no-load operation