Vane pump having a hydraulic resistance element

Details Vane pump having a hydraulic resistance element Vane pump having a hydraulic resistance element

1996-08-13

1998-09-15

Freay, Charles G.

Rotary expansible chamber devices

With mechanical sealing

Axially movable end wall or end wall portion

418268, 418269, F01C 1908

Patent

active

058070907

ABSTRACT:
A pump, particularly a vane or roller pump, with at least two pump segments, each having a suction region and a pressure region, with a first fluid path leading from the pressure side to a consumer, and with at least one hydraulic resistance element, which is arranged in the first fluid path to the consumer, is proposed. The pump is characterized in that the hydraulic resistance element is arranged in a second fluid path connecting the pressure regions of the at least two pump segments.

REFERENCES:
patent: 4386891 (1983-06-01), Riefel et al.
patent: 4540347 (1985-09-01), Child
patent: 5026263 (1991-06-01), Iwata
patent: 5466135 (1995-11-01), Draskovits et al.

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