Non-contact vane pump

Details Non-contact vane pump Non-contact vane pump

1975-01-30

1976-10-26

Husar, C. J.

Rotary expansible chamber devices

Positively actuated vane

Cam actuated

F04C 1700

Patent

active

039880834

ABSTRACT:
The present invention relates to a non-contact type vane pump adapted to prevent the generation of heat due to direct contact between the outer edges of the rotatively driven vanes of the vane pump and the inner surface of the pump casing. The principle arrangement resides in this that the extent to which the vanes rotating under the action of centrifugal force extend radially during operation is suppressed by guide members of less frictional loss disposed in a region adjacent to the center where the peripheral speed is minimum. Non-contact type vane pumps having sub-arrangements based on said principal arrangement are also provided. Advantages and details of such arrangements will be made clear.

REFERENCES:
patent: 1492456 (1924-04-01), Hansen-Ellehammer
patent: 2636480 (1963-04-01), Becker
patent: 3578889 (1971-05-01), Dagne

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