Rotary expansible chamber devices – Grooved abutting cylinder-rotating member end surfaces – Working fluid portion fills intertooth spaces or spaces...
Patent
1978-09-08
1980-12-16
Smith, Leonard E.
Rotary expansible chamber devices
Grooved abutting cylinder-rotating member end surfaces
Working fluid portion fills intertooth spaces or spaces...
418132, F04C 218
Patent
active
042394686
ABSTRACT:
A pressure plate provides metering grooves in a face thereof contiguous to the gears of a gear pump. The grooves communicate certain pockets between adjacent gear teeth with other such pockets so as to meter fluid from pockets in which fluid is trapped at relatively high pressures to pockets in which fluid is trapped at relatively low pressures, thereby controlling the pressure distribution.
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patent: 3499390 (1970-03-01), Prijatel
patent: 3833319 (1974-09-01), Eglington
patent: 4087216 (1978-05-01), Shumate
Smith Leonard E.
Striker Michael J.
The Rexroth Corporation
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