A valve including a valve member having two different stable positions, and a valve operator for shifting the valve member between its two stable positions and holding the valve member in those positions. The valve operator includes a shuttle moveable between two extreme positions corresponding to t
A valve including a valve member having two different stable positions, and a valve operator for shifting the valve member between its two stable positions and holding the valve member in those positions. The valve operator includes a shuttle moveable between two extreme positions corresponding to the two stable positions, respectively, of the valve member. A first spring urges the shuttle toward one of its extreme positions and a second spring, stronger than the first spring, urges the shuttle toward the other of its extreme positions, these movements of the shuttle being transmitted to the valve member. A device, such as an electric solenoid, selectively renders the second spring ineffective with respect to the shuttle, so that when the second spring is ineffective the first spring causes the valve member to assume one of its stable positions, and when the second spring is not ineffective, the second spring causes the valve member to assume the other of its stable positions.
대표청구항▼
A valve including a valve member having two different stable positions, the valve including two ports, each surrounded by a valve seat, the valve member engaging one of the valve seats when in one of its stable positions, and the valve member engaging the other valve seat when in the other of its st
A valve including a valve member having two different stable positions, the valve including two ports, each surrounded by a valve seat, the valve member engaging one of the valve seats when in one of its stable positions, and the valve member engaging the other valve seat when in the other of its stable positions, and a valve operator for shifting the valve member between its two stable positions and holding the valve member in those positions, the valve operator comprising: a shuttle moveable between two extreme positions corresponding to the two stable positions, respectively, of the valve member, means for transmitting movement of the shuttle to the valve member, a first spring for urging the shuttle toward one of its extreme positions, a second spring, stronger than the first spring, for urging the shuttle toward its other extreme position, and means for selectively rendering the second spring ineffective with respect to the shuttle, whereby, when the second spring is ineffective the first spring causes the valve member to assume one of its stable positions, and when the second spring is not ineffective the second spring causes the valve member to assume the other of its stable positions.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허를 인용한 특허 (32)
Young, Gregory; Kucera, David; Kasprzyk, Donald J.; Super, Willem; Praat, Jos; Thiewes, Roelof; van der Mei, Hans M.; Zabel, Brian; Mitchell, John D., Burner control system.
Young, Gregory; Kucera, David; Kasprzyk, Donald J.; Super, Willem; Praat, Jos; Thiewes, Roelof; van der Mei, Hans; Zabel, Brian; Mitchell, John D., Burner control system.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.