公开(公告)号：US08876490B2

公开(公告)日：2014-11-04

申请号：US14181195

申请日：2014-02-14

申请人： Actuant Corporation

发明人： Frantz D. Stanford ,  Bruce E. Knuth ,  Kay Lap Gilbert Chan

IPC分类号： F04B35/00 ,  F04B35/02 ,  F16K31/12 ,  F16K31/36 ,  F16K31/122 ,  F15B11/072

CPC分类号： F15B11/072 ,  F15B2211/20507 ,  F15B2211/20538 ,  F15B2211/216 ,  F15B2211/26 ,  F15B2211/6051 ,  F16K31/1221 ,  Y10T137/7796 ,  Y10T137/7804 ,  Y10T137/7922

摘要： A hydro-pneumatic system has an air powered motor driving a hydraulic pump with a pressure limiting valve that turns off air flow to the air motor when a hydraulic pressure output by the pump at a sense port of the valve reaches a certain limit. A valve element of the valve has spring, hydraulic and pneumatic sections, with an unbalanced area of the hydraulic section in a sealed pressure chamber of a cartridge that is part of the valve housing. The pneumatic section extends out one end of the cartridge to fill a bore between the air inlet and outlet ports when the pneumatic section is extended, and allow air to pass when it is retracted.

公开(公告)号：US20140161636A1

公开(公告)日：2014-06-12

申请号：US14181195

申请日：2014-02-14

申请人： Actuant Corporation

发明人： Frantz D. Stanford ,  Bruce E. Knuth ,  Kay Lap Gilbert Chan

IPC分类号： F15B11/072

CPC分类号： F15B11/072 ,  F15B2211/20507 ,  F15B2211/20538 ,  F15B2211/216 ,  F15B2211/26 ,  F15B2211/6051 ,  F16K31/1221 ,  Y10T137/7796 ,  Y10T137/7804 ,  Y10T137/7922

摘要： A hydro-pneumatic system has an air powered motor driving a hydraulic pump with a pressure limiting valve that turns off air flow to the air motor when a hydraulic pressure output by the pump at a sense port of the valve reaches a certain limit. A valve element of the valve has spring, hydraulic and pneumatic sections, with an unbalanced area of the hydraulic section in a sealed pressure chamber of a cartridge that is part of the valve housing. The pneumatic section extends out one end of the cartridge to fill a bore between the air inlet and outlet ports when the pneumatic section is extended, and allow air to pass when it is retracted.

摘要翻译： 液压气动系统具有驱动液压泵的空气动力马达，该液压泵具有压力限制阀，当在阀的感应端口处的泵输出的液压压力达到一定限度时，该压力限制阀将空气流向空气马达。 阀的阀元件具有弹簧，液压和气动部分，在作为阀壳体的一部分的盒的密封压力室中具有液压部分的不平衡区域。 当气动部分延伸时，气动部分延伸出筒的一端以填充空气入口和出口之间的孔，并允许空气在其缩回时通过。