Rotary pump with carbon vanes and an aluminum cylindrical sleeve

Details Rotary pump with carbon vanes and an aluminum cylindrical sleeve Rotary pump with carbon vanes and an aluminum cylindrical sleeve

1979-03-23

1981-06-30

Vrablik, John J.

Rotary expansible chamber devices

Non-metallic working member, cylinder or partition

418178, F04C 1800, F04C 2900

Patent

active

042760070

ABSTRACT:
A rotary fluid pump having a rotor with carbon vanes disposed in a rotor chamber. A cylindrical aluminum sleeve is force fitted into a mating arrangement with the inner peripheral surface of the rotor housing. The aluminum sleeve reduces the friction between the housing and the vanes. The sleeve may be of the same axial length or shorter than the rotor housing. If it is equal end seal plates are employed to provide the necessary expansion gap or end washers are employed at the housing to increase the effective axial length.

REFERENCES:
patent: 2312655 (1943-03-01), Lauck
patent: 2380287 (1945-07-01), Baumbach
patent: 2816702 (1957-12-01), Woodcock
patent: 3191852 (1965-06-01), Kaatz et al.
patent: 3552895 (1971-01-01), Bayley
patent: 3708867 (1973-01-01), Meserole

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