|국가/구분||United States(US) Patent 등록|
|국제특허분류(IPC7판)||F15B-013/04 F15B-019/00 F16K-037/00 F15B-020/00 F16K-031/12 F15B-013/043|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 0 인용 특허 : 14|
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 ...
1. A system, comprising: a first valve device and a second valve device, each of the first valve device and the second valve device including: a valve body and a valve element slidably disposed within a passageway formed in the valve body, wherein a first segment of the valve element and the valve body are arranged to define a working chamber to receive fluid at a first pressure, and the valve body and the valve element are arranged to define a control chamber to receive fluid at a second pressure, the valve element having a first land and a second land ...