Assembly for feeding fuel out of a supply tank to an internal co

Details Assembly for feeding fuel out of a supply tank to an internal co Assembly for feeding fuel out of a supply tank to an internal co

1995-10-19

1997-02-11

Vrablik, John J.

Rotary expansible chamber devices

With plural working fluid inlet or outlet passages

418184, 418225, F04C 2344, F04C 1300, F04C 1500

Patent

active

056014228

ABSTRACT:
A fuel feed assembly with a feed pump of the roller-cell pump type, of which the pump rotor rotates eccentrically in a pumping chamber has a plurality of rollers which are guided in radial grooves of the disk-shaped pump rotor and are distributed uniformly over the circumference. When the pump rotor is rotating, the rollers run, as a result of the centrifugal force, on a bore wall of an intermediate ring radially delimiting the pumping chamber. The bore wall forms a running track. At the same time, the rollers delimit individual sickle-shaped pump rotor and the bore wall and the volume decreases from a suction port towards a delivery port as a result of the eccentricity of the pump rotor. At the same time, there is provided between the delivery port and suction port in the direction of rotation of the pump rotor a narrow-gap region which, according to the invention, is made so large that the pump working spaces passing through this region are closed completely.

REFERENCES:
patent: 345885 (1886-07-01), Colebrook
patent: 2737121 (1956-03-01), Badalini
patent: 5378111 (1995-01-01), Christopher

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