-
公开(公告)号:US5519995A
公开(公告)日:1996-05-28
申请号:US240781
申请日:1994-05-12
申请人: Bernhard Sasse , Peter Zimmermann
发明人: Bernhard Sasse , Peter Zimmermann
CPC分类号: F15B15/18
摘要: An electrohydraulic device for generating a force acting on a movable piston rod including a cylinder, a piston disposed in the cylinder forming a first cylinder portion and a second cylinder portion, a first pump disposed adjacent to the cylinder and in communication with the second cylinder portion, a second pump disposed adjacent to the first pump and in communication with the first pump and with the first cylinder portion, a housing defining a reservoir for operating fluid of the electrohydraulic device, the second pump being in communication with the reservoir, and an electric motor coupled to the first and second pumps by a shaft such that when the electric motor rotates in a first direction, the shaft drives the first pump while the second pump is idle and when the electric motor rotates in a second direction, the shaft drives the second pump while the first pump is idle. The operating fluid is pumped between the first cylinder portion and the second cylinder portion by the first and second pumps as a function of a direction of rotation of the electric motor causing the piston to move based on pressure acting on the piston and generating a force at the piston rod.
摘要翻译: PCT No.PCT / EP92 / 02486 Sec。 371日期:1994年5月12日 102(e)日期1994年5月12日PCT提交1992年10月30日PCT公布。 公开号WO93 / 10361 日期:1993年5月27日。一种电动液压装置,用于产生作用在可动活塞杆上的力,该活塞杆包括气缸,设置在形成第一气缸部分的气缸中的活塞和第二气缸部分,邻近气缸设置的第一泵 与第二气缸部分的连通,与第一泵相邻设置并与第一泵连通并具有第一气缸部分的第二泵,限定用于操作电动液压装置的流体的储存器的壳体,第二泵与 所述储存器以及通过轴联接到所述第一和第二泵的电动机,使得当所述电动机沿第一方向旋转时,所述轴驱动所述第一泵,而所述第二泵空转时,并且所述电动机在第二泵的第二 方向,当第一个泵空闲时,轴驱动第二个泵。 工作流体通过第一和第二泵作为电动机的旋转方向被泵送在第一气缸部分和第二气缸部分之间,使得活塞基于作用在活塞上的压力并且产生一个力 活塞杆。