Aggregate for feeding fuel from supply tank to internal combusti

Details Aggregate for feeding fuel from supply tank to internal combusti Aggregate for feeding fuel from supply tank to internal combusti

1993-07-23

1994-09-27

Vrablik, John J.

Rotary expansible chamber devices

With plural working fluid inlet or outlet passages

418171, 415 551, F04C 210, F04C 1500, F02M 3704, F02M 3720

Patent

active

053502850

ABSTRACT:
An aggregate for feeding fuel from a supply tank to the internal combustion engine of a motor vehicle, has a pump chamber with a suction opening for receiving fuel and a pressure opening for supplying a fuel and a feeding element rotating in the pump chamber and feeding fuel from the suction opening to the pressure opening. At least one of the chamber end walls in a region of a sealing surface formed between an end surface of the feeding element and one of the chamber walls has an opening which leads to an unloading space, and the opening as considered in a rotary direction of the feeding element is located near one edge which limits the suction opening, and has a radial extension which is at least equal to a radial extension of the suction opening.

REFERENCES:
patent: 2513984 (1950-07-01), Witchger
patent: 2956512 (1960-10-01), Brundage
patent: 3034447 (1962-05-01), Brundage
patent: 3242867 (1966-03-01), Mosbacher
patent: 4697995 (1987-10-01), Tuckey

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