RADIAL PISTON TYPE FLUID ROTARY MACHINE

摘要

PROBLEM TO BE SOLVED: To provide a radial piston type fluid rotary machine capable of controlling the rotating amount of a pintle by the operation of an actuator to change the capacity thereof and capable of rotating the pintle with a small force. SOLUTION: The pintle 6 is fittedly inserted into a recessed part 11 at the center portion of a cylinder block 5 pivotally supported on a casing 1 to rotatably pivotally support the pintle 6 on the cylinder block 5. Cancel ports 26 communicating with a high-pressure port 22 are formed in the pintle 6 on both sides of a low-pressure port 18 facing the high-pressure port 22. The rear end of the pintle 6 is connected to a motor 14 fitted to a case 7 through an Oldham's coupling 12. A timing for connecting the pintle 6 to a cylinder hole 30 can be changed by the rotation of the motor 14. COPYRIGHT: (C)2006,JPO&NCIPI