Flexible-wall fuel pump with means to dampen wall oscillations

Details Flexible-wall fuel pump with means to dampen wall oscillations Flexible-wall fuel pump with means to dampen wall oscillations

Filed on

1977-04-06

Date issued

1980-01-22

Examiner

Croyle, Carlton R.

Patent Class

Pumps

SubClass

Motor driven

SubSubClass

Fluid motor

Other Related Categories

417478, 123139A, F04B 4310, F04B 4506

Type

Patent

Status

active

Patent number

041848110

Description

ABSTRACT:
An adjustable mechanical damper for the diaphragm of a fuel pump of a type in which the diaphragm is pulsated by fluctuations in engine crankcase pressure is provided to regulate the amplitude of diaphragm pulsations and the incremental volumetric change produced in the diaphragm-enclosed chamber by the pulsations. Provision of the damper renders the fuel pump self-compensating for changes in fuel head pressure and insures constancy in the output response of the fuel pump to crankcase pressure.

REFERENCES:
patent: 2405734 (1946-08-01), Coe
patent: 2496711 (1950-02-01), Goddard
patent: 3048121 (1962-08-01), Sheesley
patent: 3158104 (1964-11-01), Hutchinson
patent: 3951572 (1976-04-01), Ray et al.
patent: 3983857 (1976-10-01), O'Connor

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