| 摘要 |
<p>PURPOSE:To prevent slip off of a shoe, by a method wherein claw parts, nipping the tip of a piston and engaged with the groove part of a rotor, is mounted to a shoe located between the tip of the piston, disposed in a rotor, and the inner surface of a rotary ring disposed in a housing. CONSTITUTION:With a shaft 110 driven, a rotor 111 is rotated about a pivot part 120. In this case, since the centre of the pivot part 120 is eccentric by a given amount to the centre of a cylindrical track surface 101 of a housing 100, a distance between the rotor 111 and the rotary ring 102 is increased and decreased. Since, in a state in that a distance is, for example, decreased, a piston 141 is moved to the inner side of a cylinder 140, the volume of a pressure chamber is decreased, working fluid is discharged through a communication passage 148. In this case, claw parts 203 and 204, protruded inwardly, are formed to a shoe 200. The tip of the piston 141 is held between the nip formed by the claw parts 203 and 204, and the claw parts 203 and 204 are engaged with a groove part 177 formed in the rotor 111.</p> |
