Hydraulic fluid accumulator

US6644354B2 · kind B2 · utility

Assignee

• Continental Teves AG & Co. OHG · DE

Inventors

• Dieter Dinkel · Eppstein, DE
• Axel Hinz · Neu-Anspach, DE
• Hans-Dieter Reinartz · Frankfurt am Main, DE
• Manfred Rüffer · Pocking, DE
• Günther Vogel · Dreieich, DE
• Uwe Greiff · Bad Homburg vor der Höhe, DE
• René Lenz · Frankfurt am Main, DE

Key dates

• Filing date: Oct 4, 2002
• Grant date: Nov 11, 2003
• Expiry date: Oct 4, 2022

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F15B2201/415
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

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.