Noise isolation for a fuel system

Details Noise isolation for a fuel system Noise isolation for a fuel system

1985-04-26

1986-05-27

Chambers, A. Michael

Fluid handling

Systems

With pump

137590, 417363, E03B 1116, F04B 1100

Patent

active

045909644

ABSTRACT:
An electric motor driven fuel pump is mounted in a fuel tank with noise isolators to decouple the fuel pump and the fuel lines from the fuel tank and the vehicle body structure. The fuel discharge line is isolated from the pump discharge passage by an elastomeric connector, and both the fuel discharge and fuel return lines are isolated from the fuel tank by resilient elastomeric grommets. A reaction mass is connected to the discharge line and the return line and isolated from the fuel tank. The reaction mass provides a significant change in the mechanical impedance of the system and thereby absorbs a majority of the fuel pump vibratory energy.

REFERENCES:
patent: 3250461 (1966-05-01), Parker
patent: 3698833 (1972-10-01), Cann et al.
patent: 3926537 (1975-12-01), Piper
patent: 4304530 (1981-12-01), Gens
patent: 4306844 (1981-12-01), Otto et al.

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