Patent ID: 6497558
Filing Date: 2002-12-24
Classification: F04C

Abstract:
A hydraulic pressure transformer for the conversion of an input hydraulic power to an output hydraulic power, said hydraulic pressure transformer comprising:a cam block including a cam opening defining a pump section and a motor section, said pump section including at least one pump inlet port and at least one pump outlet port, said motor section including at least one motor inlet port and at least one motor outlet port, said cam opening having a pair of cam surfaces connected by a pair of transition surfaces, said cam opening having a plane of symmetry associated therewith, said pair of transition surfaces being substantially parallel to s aid plane of symmetry; and a rotor disposed within said cam opening and rotatable about an axis of rotation, said rotor including a peripheral surface, a plurality of radially extending slots opening at said peripheral surface and a plurality of vanes respectively disposed in said slots, at least one of said rotor and said cam block being movable relative to an other of said rotor and said cam block in at least one direction generally perpendicular to said axis of rotation.