Rotary vane pump having multi-independent outputs due to stator

Details Rotary vane pump having multi-independent outputs due to stator Rotary vane pump having multi-independent outputs due to stator

1977-02-02

1980-01-15

Croyle, Carlton R.

Pumps

Diverse pumps

Moving partition or cylinder of rotary pump forms or...

417287, 417288, 417310, 417428, 418 15, F04B 2310, F04B 4908, F04B 2312, F01C 100

Patent

active

041837231

ABSTRACT:
A vane-type double lobe hydraulic pump having a casing with a rotor having a plurality of slots with each slot mounting a vane for tracking of a surrounding cam ring and porting for pumping from both undervane and intervane pumping chambers. The cam ring has two generally elliptical sections of different contour whereby the volumes of fluid pumped by the vanes in coacting with one of said sections differ from the pumped volumes of the vanes when coacting with the other section. In one embodiment, there are four independent volume outputs while, in other embodiments, valve elements control the output of the pump whereby it may be the total of the pumped fluid or lesser amounts including only the volume pumped by the vanes in coacting with one of said cam ring sections or only part thereof.

REFERENCES:
patent: 2255782 (1941-09-01), Kendrick
patent: 2280272 (1942-04-01), Sullivan
patent: 2832199 (1958-04-01), Adams et al.
patent: 3064426 (1962-11-01), Furia et al.
patent: 3067689 (1962-12-01), Hause
patent: 3068795 (1962-12-01), Lauck
patent: 3578025 (1971-05-01), Furrer
patent: 3752065 (1973-08-01), Newton

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