Prestressed assembled oleo-pneumatic accumulators
US4449552A · kind A · utility
11Cited by
3References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 11, 1982 |
| Grant date | May 22, 1984 |
| Priority date | — |
| Expiry date | Feb 11, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B2201/435
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An oleopneumatic accumulator having a first chamber receiving hydraulic fluid and a second chamber receiving pressurized gas with the chamber being separated by a flexible diaphragm is disclosed. The accumulator has a cylindrical shell with two open ends closed by plugs. The plugs are held together by at least one pretensioned tie rod and one end has a larger inner diameter than the other end. When a predetermined pressure is exceeded the larger inner diameter cylinder end will separate from its plug reducing hydraulic pressure to a value less than the predetermined pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.