Piston-type accumulator
US6923215B2 · kind B2 · utility
11Cited by
14References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 18, 2002 |
| Grant date | Aug 2, 2005 |
| Priority date | — |
| Expiry date | Jul 18, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B2201/32
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A piston-type accumulator includes a separating piston (13) displaced axially within a piston housing (1). The piston separates a fluid side (15) of the accumulator from its gas side (23), and has comprises two sealing areas (17, 25) offset relative to each other in the axial direction. The sealing areas are arranged on the circumference of the piston and are displaced along the inner wall surface of the accumulator housing. The accumulator housing (1) is provided with a ventilation device (31) between the sealing areas (17, 25) for discharging leakage passing through the sealing areas (17, 25).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.