Vane pump with annular aetainer limiting outward radial vane mov

Details Vane pump with annular aetainer limiting outward radial vane mov Vane pump with annular aetainer limiting outward radial vane mov

1988-12-20

1990-04-17

Vrablik, John J.

Rotary expansible chamber devices

Interconnected vanes

Encompassing moving member interconnects plural vanes

F04C 2344

Patent

active

049175840

ABSTRACT:
A vane pump in which between an end surface of a rotor and an inner surface of an end wall of a housing having the rotor supported in an eccentric state is interposed a retainer coaxial with the housing or a bearing, and the retainer or bearing is engaged with vanes to define the pratrusion of the vaned to a given amount, and an inner peripheral surface of the housing is formed correspondingly to the end edges of the vanes which rotates while being subjected to said defining to make a clearance therebetween constant.

REFERENCES:
patent: 1492456 (1924-04-01), Hansen-Ellehammer
patent: 2562698 (1951-07-01), Clerc
patent: 2672282 (1954-03-01), Novas
patent: 3640648 (1972-02-01), Odawara
patent: 3988083 (1976-10-01), Shimizu et al.
patent: 4133618 (1979-01-01), Smolinski
patent: 4410305 (1983-10-01), Shank et al.

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