Abstract: A vane pump for an automatic transmission includes a housing which may be spaced from the axis of the transmission input shaft axis and driven by a chain or gear train driven by the torque converter hub or disposed on and about the axis of the transmission input shaft and driven at engine speed. The vane pump includes a pair of port plates which reside on the end faces of a pump body having a cylindrical chamber which receives an eccentrically disposed rotor that is coupled to a stub shaft in an off-axis arrangement. The rotor includes a plurality of radial slots which receive a like plurality of vanes. The outer ends or edges of the vanes are in contact with the wall of the cylindrical chamber and the inner ends or edges are in contact with a pair of vane rings received within recesses in the ends of the rotor. The vanes are thus constrained between the wall of the chamber and the vane rings which positively determine their radial positions as they and the rotor rotate.

Abstract: The invention can be used as a high pressure rotor vane pump or hydro motor. Rotor vane machine comprises a rotor including working and supporting parts connected via force chambers of variable length so that they rotate synchronously with a possibility of little reciprocal axial movements and tilts required to provide sliding insulating contact of face surfaces of the working and supporting pans of the rotor with the surfaces of the working and supporting cover plates of the housing correspondingly. Between the supporting cover plate of the housing and supporting part of the rotor there are made supporting cavities hydraulically connected via the means of local pressures balancing to the force chambers of variable length and cavities of the working chamber in the annular groove of the working part of the rotor. The losses on friction and cavitation decrease and the reliability increases.

Abstract: The present invention may be used in pumps and hydraulic engines and increases the functional capacities of rotary machines. This invention relates to a rotary machine comprising a body in which an adjustment member is mounted so as to be capable of displacement along the rotation axis. A plurality of systems, that define the axial and mutual disposition of sliders, are mounted so as to be capable of changing their position relative to the rotor and the body, and are cinematically connected to the adjustment member. The sliders are mounted so as to be capable of changing their position upon displacement of the adjustment member.

Abstract: A vane actuation mechanism for an axial vane rotary device includes a cylindrical outer housing that defines an internal cylindrical chamber. A rotor assembly having a drive shaft is rotatably mounted within the internal cylindrical chamber. A cylindrical guide slot is held in proper rotational position within the internal cylindrical chamber. A plurality of modified vanes are disposed on the rotor core. The modified vane has a recess in the top of the vane. A shear block having a general "T" shape is disposed in the recess of the vane and is secured to the vane. Part of the shear block is disposed within the guide slot to act as a guide member. The guide slot can be formed from a single cylindrical member. The single cylindrical member is cut to form two cylindrical guide slot members. The edges of the cylindrical guide slot members form the guide slot. The guide slot urges the shear block as the vanes rotate.

Abstract: An axial vane rotary device (14) includes a stator (16) with a cylindrical internal chamber (34) defined an annular outer wall (40) and two side walls (36, 38) of the stator. Each side wall has an annular cam surface (42, 44). A rotor (54) is rotatably mounted within the chamber. The rotor has an annular outer wall (66) and a plurality of angularly spaced-apart, axially extending slots (64) extending therethrough. A vane (68) is slidably received in each slot. The vanes reciprocate axially and alternatively expand and compress spaces between adjacent vanes and the cam sur-faces as the rotor rotates. The cam surfaces have alternating first portions (92) and second portions (90). The second portions are further from the rotor than the second portions. The first portions of one said cam surface are aligned with second portions of another said cam surface. The slots extend radially outwards on the rotor to the annular outer wall thereof.

Abstract: A hydraulic motor comprising a cylindrical rotor including a central bore, a cylindrical stator including selectively advanceable blade means, a stator having a central bore and first conduit means for directing pressurized fluid to the blade means, a drive shaft extending through the rotor central bore, the drive shaft including a full diameter portion secured to the rotor and a reduced diameter section extending from an axial location within the rotor member into the stator member central bore, a conical bearing secured to the drive shaft, a bearing track, a cylindrical sleeve member secured within the stator central bore and extending into the central bore to an axial location spaced from the full diameter drive shaft portion and establishing with the rotor central bore a first journal bearing, a segment of the reduced diameter drive shaft portion at the free end thereof establishing with a corresponding segment of the sleeve, a second journal bearing, the internal diameter of the remaining segment of the

Abstract: A positive displacement rotary apparatus comprising a rotor having opposed faces on opposite sides thereof; a housing around the rotor and having opposed internal side walls facing the opposed faces of the rotor; and a plurality of circumferentially spaced vane means extending slidingly through the rotor in a direction substantially parallel to the rotational axis thereof and disposed radially outwardly from the axis of rotation of the rotor on substantially the same radius. An annular recess which periodically varies in depth and width over its length is formed in each of said internal side walls of the housing concentrically with respect to the axis of rotation of the rotor. The annular recesses slidingly receive opposite ends of the sliding vane means, and the bottoms of the recesses are equidistantly spaced from each other at all aligned points over the length of the recesses as measured along any one vane means having its opposite ends in the recesses.

Abstract: A rotary fluid pump rotor is not eccentrically rotated relative to a casing and as a consequence an eccentric load is not loaded on the shaft and bearing. The fluid pump of the invention may use a seal ring in order to maintain fluids air-tight for effective operation.