Vane pump with unilateral bearing

Details Vane pump with unilateral bearing Vane pump with unilateral bearing

1982-05-10

1984-07-03

Smith, Leonard E.

Rotary expansible chamber devices

Heat exchange or non-working fluid lubricating or sealing

Non-working fluid passage in inner working or reacting member

418268, 417362, F04B 1700, F04B 3500

Patent

active

044576790

ABSTRACT:
The invention relates to a motor-driven vane pump, and in particular to vane pumps for generating a vacuum used to operate a secondary unit of an automobile. The vane pump comprises a cast approximately bell-shaped pump housing in which a rotor is eccentrically supported. The rotor is rigidly connected with and driven by a rotor shaft, and carries a plurality of sealing vanes slidably mounted in guide slots provided along its periphery. A rotationally symmetrical driving bell surrounds the pump housing with play, and is rigidly connected with the rotor shaft, which sealingly passes through the bottom of the pump housing. The rotor shaft is thus supported on only one side in the housing cover which closes off the end of the pump housing opposite the chamber bottom.

REFERENCES:
patent: 1701792 (1929-02-01), Nelson
patent: 1915800 (1933-06-01), Price
patent: 2258009 (1941-10-01), Horton
patent: 2875626 (1959-03-01), Niederer
patent: 3776651 (1973-12-01), Peter
patent: 4080122 (1978-03-01), Skrivanek
patent: 4231727 (1980-11-01), Buchholz
patent: 4293290 (1981-10-01), Swanson

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