| 摘要 |
PCT No. PCT/EP97/04713 Sec. 371 Date Mar. 4, 1999 Sec. 102(e) Date Mar. 4, 1999 PCT Filed Aug. 29, 1997 PCT Pub. No. WO98/10192 PCT Pub. Date Mar. 12, 1998A vane cell pump with a cup-shaped case top (2) for receiving a pump package (3). The cup-shaped case top (2) is axially extended and contains a damper (14) for the purpose of an effective pressure fluctuation absorption. The case top (2) has an inwardly projecting extension (6) for supporting the pump package (3) in one embodiment. A piston (15), which can be displaced against a spring (18), can be arranged on the extension (6) for improving the damper action in another embodiment.
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