Hydraulic accumulator, in particular bellows accumulator
US8875740B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 4, 2009 |
| Grant date | Nov 4, 2014 |
| Priority date | — |
| Expiry date | Oct 23, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B2201/3152
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A bellows accumulator has a bellows (13) serving as a movable separating element between a gas side (11) and a fluid side (21). At the movable bellows end during expansion and contraction in the accumulator housing defining a longitudinal axis (9), a closure body (25) closes off the interior space (33) of the bellows (13) in a fluid-tight manner. At its other bellows end (27), the bellows is immovably fixed to the accumulator housing (1). The immovable bellows end (27) is fixed to an end body (31) fixed to the housing, which end body (31) is in the form of a disk with region (37) projecting axially into the interior (33) of the bellows (13) from the main plane (35) of the disk. At least one fluid passage (41, 43) is formed on the projecting region (37), which fluid passage (41, 43) connects the interior space (33) associated with the fluid side (21) to a fluid connection (17) of the accumulator housing (1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.