Variable volume type vane pump with lubricating oil reservoir

Details Variable volume type vane pump with lubricating oil reservoir Variable volume type vane pump with lubricating oil reservoir

1991-01-08

1993-01-12

Bertsch, Richard A.

Rotary expansible chamber devices

With changeable working chamber magnitude

Spring or fluid biased movable member

418 30, F04C 1504

Patent

active

051785250

ABSTRACT:
A variable volume type vane pump comprises a housing, a rotor having a plurality of vanes, a cam ring disposed to be adjacent to said rotor, and a cover. A control piston is arranged for slidably displacing the cam ring relative to the housing and the cover. The housing, the cam ring, the control piston, and the cover cooperating to define an oil reservoir. A pressure within the oil reservoir is adjusted by a check valve.

REFERENCES:
patent: 2433484 (1947-12-01), Roth
patent: 2635551 (1953-04-01), DeLancey
patent: 4437819 (1984-03-01), Merz
Automotive Engineering, extra ed. vol. 37, No. 7 published Jun. 1988 by Tetsudo Nihon Sha Co., Ltd.

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