Damper for high pressure pumping system

Details Damper for high pressure pumping system Damper for high pressure pumping system

1977-10-11

1979-01-02

Freeh, William L.

Pumps

Expansible chamber type

Having pulsation dampening fluid receiving space

366273, F04B 1100

Patent

active

041325117

ABSTRACT:
A damper for use with a high pressure pumping system, such as a liquid chromatography system, which incorporates a reciprocating pump. The device is a generally enclosed canister including an internally formed flow volume. Inlet and outlet passages through the canister communicate with the flow volume, the inlet passage being connectable to receive the high pressure flow. A compressible body, e.g. of Teflon is positioned in the flow volume. The dimensions of the body are slightly smaller than those of the surrounding volume, whereby the high pressure flow passing between the inlet and outlet flows through the space between the body and the internal canister walls. The compression and decompression of the body in response to the pulsations in the flow dissipate the energy carried by the pulses, thereby damping same.

REFERENCES:
patent: 2844363 (1958-07-01), Clark
patent: 2912343 (1959-11-01), Collins
patent: 2989086 (1961-06-01), Dahl
patent: 3245665 (1966-04-01), Steel
patent: 3276479 (1966-10-01), Windsor et al.
patent: 3474831 (1969-10-01), Noakes
patent: 3976400 (1976-08-01), Major
patent: 4024061 (1977-05-01), Gatiss
patent: 4054270 (1977-10-01), Guggor

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