HYDRAULIC PUMP OR MOTOR

摘要

The invention concerns a mechanism such as a motor or a pump comprising a cam (10) and a cylinder block (12) including a plurality of cylinders (14A,14B, 14) connected to communication orifices (34A, 35A ; 34B, 35B) arranged in a communicating surface (18). It further comprises a fluid distributor (20) including a distributing surface (22) having distributing orifices (31A-31F, 32A-32F) adapted to be connected to the supply line or to the exhaust line. The communicating and distributing orifices communicate between them during the relative rotation of the block cylinder and the distributor. At least some of the cylinders (14A, 14B) are connected to at least two communication orifices (34A, 35A ; 34B, 35B) spaced apart at an angle ( alpha ) such that they both communicate simultaneously with a distribution orifice connected to the supply or exhaust line.