Rotary fluid pump with eccentrically moving pumping sleeve

Details Rotary fluid pump with eccentrically moving pumping sleeve Rotary fluid pump with eccentrically moving pumping sleeve

1979-01-26

1980-12-30

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

With relatively movable partition member

417410, F04C 200

Patent

active

042420644

ABSTRACT:
The invention relates to a rotary hydraulic pump comprising a housing defining a generally cylindrical pump chamber between axial end walls. The chamber is bounded radially by a mainly cylindrical wall interrupted by two recesses constituting inlet and outlet ducts of the chamber. A shaft passes axially through said end walls and the part of the shaft which is located within the chamber is constituted as a crank. A cylindrical pumping sleeve surrounds the crank and is adapted as the crank rotates to move eccentrically within the chamber and so that the external cylindrical surface of the pumping sleeve co-operates with the mainly cylindrical surface of the radial wall of the chamber whereby a crescent-shaped clearance between said surfaces rotates around the chamber and liquid introduced through the recess constituting the inlet duct is impelled around said chamber towards the recess constituting the outlet duct. Means is provided for preventing said sleeve from rotating as it moves eccentrically within said chamber.

REFERENCES:
patent: 2018515 (1935-10-01), Doeg
patent: 2084444 (1937-06-01), Kosian
patent: 2512765 (1950-06-01), Byram
patent: 2584865 (1952-02-01), Gordinier
patent: 2635550 (1953-04-01), Granberg
patent: 3969044 (1976-07-01), Fussner et al.

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