发明名称 Hydraulic valve bank
摘要 An industrial truck has a hydraulic fluid supply and at least one double-acting hydraulic cylinder assembly for moving a movable element of the vehicle. The cylinder assembly includes a cylinder having a fluid chamber therein, and a piston movable axially in the cylinder. An actuator rod extends from the piston for connection to the movable element. The piston divides the fluid chamber into a rod end chamber and a piston end chamber each having hydraulic fluid therein. A pair of two-way two-position poppet valves are selectively actuatable between a first joint state in which both of the valves are in a normally closed position in which the piston does not move; a second joint state in which a first one of the valves is closed and a second one of the valves is open to move the piston in a first direction; and a third joint state in which the first one of the valves is open and the second one of the valves is closed to move the piston in a second direction opposite to the first direction.
申请公布号 US5115720(A) 申请公布日期 1992.05.26
申请号 US19900503279 申请日期 1990.04.02
申请人 BAKER MATERIAL HANDLING CORPORATION 发明人 BABSON, VINCENT L.;HAGELBARGER, LEE A.
分类号 B66F9/22 主分类号 B66F9/22
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