公开(公告)号：US4716812A

公开(公告)日：1988-01-05

申请号：US710036

申请日：1985-03-11

申请人： Gerhard Koerner ,  Horst Plettner ,  Edelwald Lutz ,  Egon Orth ,  Rudi Weingaertner

发明人： Gerhard Koerner ,  Horst Plettner ,  Edelwald Lutz ,  Egon Orth ,  Rudi Weingaertner

IPC分类号： H01H3/24 ,  F15B15/14 ,  H01H33/34 ,  F15B15/17

CPC分类号： H01H33/34

摘要： A hydraulic drive includes a pressure housing having a blind axial recess formed therein with a wall and a bottom, an accumulator piston with first and second opposite ends disposed in the recess, an energy accumulator in the form of springs disposed symmetrical to the central axis of the accumulator piston for continuously engaging the accumulator piston braced against the springs, a working piston in the form of a differential piston guided in the recess having a piston rod passing through the accumulator piston and disposed centrally in the pressure housing, the piston rod, the pressure housing and the accumulator piston defining the wall of the recess, the piston rod, the pressure housing, the first end of the accumulator piston and the working piston defining an accumulator space in the form of a hydraulic accumulator providing pressure energy for the hydraulic drive without requiring an external energy supply, the second end of the accumulator piston and the wall and the bottom of the recess defining a plenum for receiving spent hydraulic fluid at low pressure, and the accumulator piston separating the accumulator space from the plenum.

摘要翻译： 液压驱动器包括压力壳体，其具有形成有壁和底部的盲轴向凹部，具有设置在凹部中的第一和第二相对端的蓄能器活塞，弹簧形式的能量收集器， 用于连续地接合抵靠弹簧的蓄能器活塞的蓄能器活塞，在凹部中被引导的差动活塞形式的工作活塞具有穿过蓄能器活塞并设置在压力壳体中心的活塞杆，活塞杆， 压力壳体和蓄能器活塞限定凹部的壁，活塞杆，压力壳体，蓄能器活塞的第一端和工作活塞限定了液压蓄能器形式的蓄能器空间，为液压驱动器提供压力能量 不需要外部能量供应，蓄能器活塞的第二端和壁和底部o f限定用于在低压下接收废液压流体的增压室，并且蓄能器活塞将蓄能器空间与增压室分开。