Hydropneumatic pressure accumulator

US6789577B2 · kind B2 · utility

Assignee

• HYDAC TECHNOLOGY GMBH · DE

Inventor

• Herbert Baltes · Losheim, DE

Key dates

• Filing date: Mar 13, 2002
• Grant date: Sep 14, 2004
• Expiry date: May 8, 2022

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S138/03
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A hydropneumatic pressure accumulator has an outer tube forming the accumulator housing. A flexible separating element is formed by a section of a hose, extends in the longitudinal direction inside of the outer tube and is anchored on the tube to form a seal. On the outside and inside of the hose, receiving spaces separated from one another are formed within the tube. A support body is surrounded by the hose and has fluid passages. At least in sections, the support body cross sectional shape is not round. The hose is closed on its one end and is anchored only on its other open end together with an adjacent end of the support body along the outer tube. The size of the outside surface of the hose is only slightly smaller than the size of the inside surface of the outer tube facing it. The size of the outside surface of the support body is slightly smaller than that of the inside surface of the hose facing it.