Hydraulic system with a dynamic seal
US9651067B2 · kind B2 · utility
24Cited by
15References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 22, 2013 |
| Grant date | May 16, 2017 |
| Priority date | — |
| Expiry date | Jan 25, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8326
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A system can include one or more valve arrangements with a working chamber to receive a working fluid at a first pressure, and a control chamber to receive fluid at a second pressure. A dynamic seal can be disposed on a land of a valve element. The valve arrangement may include a sleeve against which the dynamic seal is slidably engaged. The valve element may include a check stem. A pressure compensating system may be in communication with bores formed in with the valve element. A pressure system to monitor dynamic seal wear may be in communication with the control chamber of the valve arrangement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.