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    • 3. 发明授权
    • Hydraulic cylinder, in particular slave cylinder for a hydraulic clutch actuation system for motor vehicles
    • 液压缸,特别是用于机动车辆的液压离合器致动系统的从动缸
    • US07493849B2
    • 2009-02-24
    • US11291460
    • 2005-12-01
    • Egid MachtHubert DerraJürgen RybaDieter Grimmer
    • Egid MachtHubert DerraJürgen RybaDieter Grimmer
    • F16J10/00
    • F16D23/12
    • A hydraulic cylinder has a pressure chamber delimited on one side by a piston accommodated in a longitudinally displaceable manner in a cylinder housing, on the other side by a housing bottom of the cylinder housing, and radially outwards by a circumferential wall of the cylinder housing, wherein the pressure chamber can be acted upon by a pressure medium via a pressure connection provided at the housing bottom in order to displace the piston in the cylinder housing. An insertion part is inserted in the pressure connection and has a channel section which communicates with the pressure connection and, in the installed position of the hydraulic cylinder, extends essentially in the vertical direction and opens into the pressure chamber in the vicinity of the circumferential wall of the cylinder housing. As a result, a hydraulic cylinder is provided which is compact and is designed in a simple manner, and which can be deaerated in a simpler manner compared to the prior art.
    • 液压缸具有压力室,该压力室在一侧由活塞容纳,该活塞以可纵向移动的方式容纳在气缸壳体中,另一侧由气缸壳体的壳体底部径向向外限定, 其中所述压力室可以通过设置在所述壳体底部处的压力连接器被压力介质作用,以便使所述活塞在所述气缸壳体中移位。 插入部插入压力连接部,并且具有与压力连接部连通的流路部,并且在液压缸的安装位置基本上沿垂直方向延伸,并且在周壁附近通向压力室 的气缸外壳。 结果,提供了一种紧凑的液压缸,并且以简单的方式设计,并且与现有技术相比可以以更简单的方式进行脱气。
    • 4. 发明授权
    • Hydraulic cylinder, in particular slave cylinder for a hydraulic clutch actuation system for motor vehicles
    • 液压缸,特别是用于机动车辆的液压离合器致动系统的从动缸
    • US07287376B2
    • 2007-10-30
    • US11291345
    • 2005-12-01
    • Egid MachtHubert DerraJürgen RybaDieter Grimmer
    • Egid MachtHubert DerraJürgen RybaDieter Grimmer
    • F15B7/00F15B15/26
    • F16D25/088F16D23/12
    • A hydraulic cylinder comprises a piston assembly with a piston and a piston rod, a cylinder housing with a housing bottom, a pressure chamber in the cylinder housing delimited by the piston and housing bottom, a spring element which prestresses the piston assembly away from the housing bottom, and a fixing element which fixes the piston assembly in a predefined stroke position relative to the cylinder housing prior to first actuation of the hydraulic cylinder and is designed to release the piston assembly relative to the cylinder housing upon first actuation of the hydraulic cylinder. The spring element is arranged on the side of the piston which is remote from the pressure chamber, whereas the fixing element is provided in the pressure chamber at the housing bottom and co-operates with a mating element on the piston to releasably fix the piston assembly relative to the cylinder housing.
    • 液压缸包括具有活塞和活塞杆的活塞组件,具有壳体底部的气缸壳体,由活塞和壳体底部界定的气缸壳体中的压力室,弹簧元件,其将活塞组件预先挤压远离壳体 底部和固定元件,其在第一次致动液压缸之前将活塞组件相对于气缸壳体固定在预定行程位置,并且被设计成在液压缸的第一次致动时相对于气缸壳体释放活塞组件。 弹簧元件布置在远离压力室的活塞的侧面上,而固定元件设置在壳体底部的压力室中,并与活塞上的配合元件配合以可释放地固定活塞组件 相对于气缸壳体。