Hydraulic energy storage system with accumulator and method of varying charge of same
US8186155B2 · kind B2 · utility
5Cited by
51References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2009 |
| Grant date | May 29, 2012 |
| Priority date | — |
| Expiry date | Feb 13, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/62
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method of varying a charge in an accumulator includes providing an accumulator containing working fluid and gas, providing a reservoir containing gas, transferring gas from the reservoir to the accumulator to increase the gas pressure in the accumulator, and transferring gas from the accumulator to the reservoir to decrease the gas pressure in the accumulator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.