US 6,644,354 B2 · Hydraulic fluid accumulator

Abstract

The present invention discloses a hydraulic fluid accumulator comprising a housing having an interior subdivided into three chambers, with the first chamber being filled with a gas and separated from the second chamber by a first media separation element, the second chamber being filled with a fluid and separated by a second media separation element from the third chamber that is also filled with a fluid and connected to a hydraulic port. To safeguard an effective separation of media within the hydraulic fluid accumulator and, thus, a significant increase in its functional safety, the present invention arranges for the second media separation element to be embodied by a metal piston delimiting a chamber that can be vented in the housing.

Claims7

Dependent claims

Hydraulic fluid accumulator, comprising;

a housing having an interior subdivided into three chambers, wherein the first chamber is filled with a gas and separated from the second chamber by a first media separation element, wherein the second chamber is filled with a fluid and separated by a second media separation element from the third chamber, wherein the third chamber is also filled with a fluid and connected to a hydraulic port, wherein the second media separation element includes a metal piston delimiting a compartment that is adapted to be vented in the housing wherein the first chamber is arranged between a wall of the housing and the first media separation element, and wherein the second chamber and the third chamber are provided within the first media separation element.

Dependencies are inferred from the claim text.

Hydraulic fluid accumulator

Life of this patent

Hydraulic fluid accumulator

Life of this patent

Abstract

Claims7