Pressure accumulator, especially pulsation damper

Details Pressure accumulator, especially pulsation damper Pressure accumulator, especially pulsation damper

2005-01-18

2010-12-28

Hook, James F (Department: 3754)

Pipes and tubular conduits

With pressure compensators

Variable capacity chambers

C138S030000

Reexamination Certificate

active

07857006

ABSTRACT:
A pressure accumulator, especially a pulsation damper, includes an accumulator housing (10) and a piston element (28) disposed in it. A bellows-type separative element (30) is supported on the piston part (28) with its one end (32) and with its other end (34) on the accumulator housing (10). The separative element (30) separates two working chambers (26, 40) within the accumulator housing (10) from each other, especially a gas chamber (26) from a fluid chamber (40), in a fluid-tight, especially gas-tight manner. To one working chamber (26), in addition to a defined volumetric proportion of a working gas, is filled with a fluid. In this manner, the working gas allows for a compression to a certain degree and for a dampening and smoothening of the pulsations of the fluid medium migrating to and occurring on the fluid side of the accumulator.

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