Apparatus and method for reducing vehicular fuel pump noise

Details Apparatus and method for reducing vehicular fuel pump noise Apparatus and method for reducing vehicular fuel pump noise

1989-11-30

1991-06-04

Smith, Leonard E.

Pumps

Motor driven

Resiliently mounted pump or motor

188178, 248559, F04B 1100

Patent

active

050209787

ABSTRACT:
Noise of a vehicular fuel pump is reduced by determining the major frequency range of the objectionable noise and the deformation patterns of vibrating elements of the pump, and providing a passive vibrator which has designed mass, stiffness and damping values that cause it to resonate in the major frequency range and to provide an out-of-phase reaction force which is of sufficient magnitude to offset the undesired vibration. The passive vibrator may be mounted on the pressure or return line of the pump.

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Standard Handbook for Mechanical Engineers, T. Baumeister, Ed. McGraw-Hill, 5/1967, pp. 5-90-5-103.

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