Hydraulic accumulator, in particular a membrane accumulator
US8539984B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 21, 2003 |
| Grant date | Sep 24, 2013 |
| Priority date | — |
| Expiry date | Apr 23, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B2201/435
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hydraulic accumulator, preferably a membrane accumulator, in particular for damping pulsations in fluid circuits, includes an accumulator housing (12) with at least one inlet (14) and an outlet (16) for the fluid for damping. A separating element (18), preferably in the form of a membrane, separates a gas reservoir (20) from a fluid chamber (22) within the accumulator housing (12). A hydraulic accumulator with high working capacity of high reliability which little space requirement despite high accumulation capacity for the working gas in the gas reservoir (20) can be achieved. A support device (24) within the accumulator housing (12), extends within the gas reservoir (20) and forms a possible support for the separating element (18). The gas reservoir (20) of the accumulator housing (12) is sufficiently large in dimension that the total necessary gas volume is retained within the accumulator housing (12) itself. The membrane is formed from an elastic material, in particular a rubber material of polytetrafluoroethylene or compounds thereof, as a gas barrier layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.