Vane pump

Details Vane pump Vane pump

1975-01-14

1977-07-12

Croyle, Carlton R.

Rotary expansible chamber devices

With supply or exhaust passage in working member

418269, F04C 100, F04C 1502

Patent

active

040351157

ABSTRACT:
A vane pump having a rotor with a plurality of vanes movably carried in slots in the rotor and having their positions controlled by a cam ring surrounding the rotor and with port means for supplying fluid to the spaces between the vanes and withdrawing fluid under pressure from said spaces with additional port means coacting with a selected number of a plurality of passages in the rotor and associated one with each of the spaces between successive vanes whereby the spaces between vanes are filled in the conventional manner together with the additional filling action through the passages in the rotor.

REFERENCES:
patent: 861937 (1907-07-01), Beach et al.
patent: 1123977 (1915-01-01), Baker et al.
patent: 2222689 (1940-11-01), Schott
patent: 2743090 (1956-04-01), Malan
patent: 3175505 (1965-03-01), Soltau
patent: 3230840 (1966-01-01), Hanson
patent: 3790314 (1974-02-01), Swain et al.
patent: 3869231 (1975-03-01), Adams

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