| 摘要 |
PROBLEM TO BE SOLVED: To provide a vane pump capable of preventing the generation of impact even when a shaft 9 is deflected by the application of radial tension and the like, and a rotor is slid to a side plate thereby. SOLUTION: In this vane pump wherein a chamber formed between the vanes 5 is communicated to a discharge hole 14 through a pressure introduction groove 15, before it is directly communicated to the discharge hole 14 in accordance with the rotation of the rotor 4, the pressure introduction groove 15 is located at an outer side with respect to a position opposite to a side face 4a of the slid rotor 4, in a state that the rotor is slid to a side plate 12 in accompany with the deflection of the shaft 9, when the radial eccentric load is input to the shaft 9. COPYRIGHT: (C)2004,JPO
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