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1. 发明申请

WO02052159A2 COMPACT ACTUATOR WITH HYDRAULIC SEAL 审中-公开
标题翻译：具有液压密封的紧凑型致动器
公开(公告)号：WO02052159A2
公开(公告)日：2002-07-04
申请号：PCT/US0149613
申请日：2001-12-27
申请人： GEN DYNAMICS ADVANCED TECHNOLO
发明人： TERPAY GREGORY W , ZIPFEL GEORGE G
IPC分类号： B64C27/00 , F16F9/36 , F16J9/06 , F16J9/08 , F15B
CPC分类号： F16J9/08 , B64C27/001 , B64C2027/002 , F16F9/368 , F16J9/063 , Y10S277/909
摘要： An actuator for use in an active mount system for reducing vibration transmission from a vibrating component to a support structure. The actuator is disposed in a housing that is attached to the vibrating component or the support structure. The actuator includes a piston moveably dosposed in a casing, and a piston rod assembly that is connected to the other one of the vibrating component of the support structure. A seal assembly, disposed either in a groove in the piston or in a groove in the casing, provides a seal betwen the piston and casing. The seal assembly includes an annular seal member comprising polytetrafluoroethylene resin, backing rings on each side of the seal member, and an annular comprssion spring in the groove between one of the backing rings and one edge of the groove. The spring exerts force axially to compress the seal member, impelling the seal member to increase in dimension radially and maintain the deal between the piston and casing, and allows for volume expansion of the seal member with temperature. The piston may be barrel-shaped for use in a casing with a cylindrical interior surface, or the inner surface of the casing amy define an hourglass-shape for use with a cylindrical piston. Both designs allow the actuator to accommodate transverse loads without binding of the piston within the casing.
摘要翻译：一种用于主动安装系统的致动器，用于减少从振动部件到支撑结构的振动传递。致动器设置在附接到振动部件或支撑结构的壳体中。致动器包括可移动地配置在壳体中的活塞和连接到支撑结构的振动部件中的另一个的活塞杆组件。密封组件设置在活塞中的凹槽中或壳体中的凹槽中，在活塞和壳体之间提供密封。密封组件包括环形密封构件，其包括聚四氟乙烯树脂，密封构件的每一侧上的背衬环，以及位于其中一个背衬环之一和凹槽的一个边缘之间的凹槽中的环形弹簧。弹簧轴向施加压力以压缩密封构件，推动密封构件径向增大并保持活塞与壳体之间的交配，并允许密封构件随温度的体积膨胀。活塞可以是桶形的，用于具有圆柱形内表面的壳体中，或者壳体的内表面限定了与圆柱形活塞一起使用的沙漏形状。两种设计允许致动器适应横向载荷，而不会使活塞在壳体内的结合。

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