Patent · US Active

Pressure accumulator, especially pulsation damper

US7857006B2 · kind B2 · utility

3Cited by

15References

11Claims

0Family size

Assignee

HYDAC TECHNOLOGY GMBH · DE

Inventors

Herbert Baltes · Losheim, DE
Markus Lehnert · Dillingen/Saar, DE

Key dates

Filing date	Jan 18, 2005
Grant date	Dec 28, 2010
Priority date	—
Expiry date	Dec 13, 2027

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF15B2201/415
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.