Noise damping device

Details Noise damping device Noise damping device

1980-06-26

1983-02-15

Gluck, Richard E.

Pumps

With muffler acting on pump fluid

417540, 138 30, F04B 1100, F16L 5504

Patent

active

043738729

ABSTRACT:
A noise damping device is proposed for reducing and smoothing pressure fluctuations in a damping medium, especially in fuel supplied by fuel supply pumps, which serves to reduce pressure fluctuations downstream of the fuel supply pump. The noise damping device includes a diaphragm fluctuation damper which is disposed directly downstream of the pump compression collar and by means of which, by rotating the diaphragm fluctuation damper, an annular fitting is fixable in its axial position between the diaphragm fluctuation damper and the pump compression collar. A check valve in the connection extension of the diaphragm fluctuation damper or in the annular fitting prevents the return flow of fuel out of the fuel circulatory system after the termination of fuel supply.

REFERENCES:
patent: 1774095 (1930-08-01), Hajek
patent: 2276568 (1942-03-01), Erickson
patent: 2876859 (1959-03-01), Moore
patent: 3509916 (1970-05-01), Mercier
patent: 3853147 (1974-12-01), Cibulka
patent: 3868972 (1975-03-01), Zirps
patent: 4205637 (1980-06-01), Ito et al.

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