|국가/구분||United States(US) Patent 등록|
|국제특허분류(IPC7판)||F17D-001/00 F15B-019/00 F16K-037/00 F15B-020/00 F16K-031/12 F16K-011/07|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 0 인용 특허 : 12|
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. A supply passage can be in communication between the control chamber and a tank and can include a check valve. A relief valve can be disposed between the check valve and the control chamber. A pilot pump and another relief valve may be disposed upstream of the check valve. The relief valve downstream of the check ...
1. A system, comprising: at least one 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 a working fluid at a first pressure, and the valve body and the valve element are arranged to define a control chamber to receive a control fluid at a second pressure, the valve element having a land; andan annular seal element disposed between the land and an inner surface, wherein th...