| 摘要 |
A variable capacity vane pump equipped with a rotor, vanes, pump chambers, a suction port, and a discharge port. A side member has a first transition section, which is the section from the end of the suction port to the beginning of the discharge port, and a second transition section, which is the section from the end of the discharge port to the beginning of the suction port. The angle from the beginning to the end of the suction port is set such that the high-pressurization timing, wherein a pump chamber begins to be connected from the first transition section to the beginning of the discharge port, and the low-pressurization timing, wherein another pump chamber begins to be connected from the second transition section to the beginning of the suction port, are shifted with respect to each other. |
