发明名称 |
VALVE ARRANGEMENT FOR INCREASING THE OPERATING SPEED OF A WORKING CYLINDER |
摘要 |
<p>A regenerative valve includes a housing having a valve bore therein intersecting with an extension passage interconnecting a pump and a piston extension chamber, a retraction passage interconnecting a sump and a piston retraction chamber, and a regenerative passage for communicating fluid from the retraction to the extension chamber upon extension of the piston. A poppet member is movable in the bore to open and block fluid flow through the extension passage. A shuttle member is movable in the bore to either open or block one or the other of the regenerative and retraction passages. The shuttle member engages the poppet to cause the poppet to open the extension passage when the shuttle moves to close the retraction passage and open the regenerative passage.</p> |
申请公布号 |
EP0066274(B1) |
申请公布日期 |
1985.08.28 |
申请号 |
EP19820104683 |
申请日期 |
1982.05.28 |
申请人 |
DEERE & COMPANY |
发明人 |
FRIESEN, HENRY;ROSBAK, JOHN |
分类号 |
F15B11/024;(IPC1-7):F15B13/02;F15B15/17;F15B11/04 |
主分类号 |
F15B11/024 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|