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2. 发明授权

US5704273A Hydraulic system for accommodating fluid pressure variations 失效
标题翻译：用于容纳流体压力变化的液压系统
公开(公告)号：US5704273A
公开(公告)日：1998-01-06
申请号：US778902
申请日：1997-01-03
申请人： Scot C. Reeder , Robert J. McMullen , Roger D. Hanaway
发明人： Scot C. Reeder , Robert J. McMullen , Roger D. Hanaway
IPC分类号： B60T13/22 , B60T17/08 , F01B31/00
CPC分类号： B60T13/22 , B60T17/085
摘要： A hydraulic system for accommodating fluid pressure variations is provided. The system includes a housing for an actuating piston with the housing having a first end with a hydraulic fluid port and a second end. The actuating piston includes a body portion, having a face, and a rod portion. A first resilient member is confined between the actuating piston and the second end of the housing. A second resilient member is confined between the body portion and the face of the actuating piston. The face of the actuating piston is preferably a pressure accommodating piston which moves relative to the body portion of the actuating piston. Preferably, the second resilient member has a tension force greater than the tension force of the first resilient member. As the actuating piston moves against the bias of the first resilient member toward the second end of the housing in response to hydraulic fluid entering the housing through the fluid port, the movement of the actuating piston is limited by a stop. If there is an increase in hydraulic fluid pressure with the actuating piston in the stopped position, the additional pressure is accommodated by compression of the second resilient member.
摘要翻译：提供一种用于容纳流体压力变化的液压系统。该系统包括用于致动活塞的壳体，壳体具有带液压流体端口的第一端和第二端。致动活塞包括具有面部的主体部分和杆部分。第一弹性构件被限制在致动活塞和壳体的第二端之间。第二弹性构件被限制在主体部分和致动活塞的表面之间。致动活塞的表面优选地是相对于致动活塞的主体部分移动的压力容纳活塞。优选地，第二弹性构件具有大于第一弹性构件的张力的张力。当致动活塞响应于通过流体端口进入壳体的液压流体而抵抗第一弹性构件的偏压朝向壳体的第二端移动时，致动活塞的运动受到停止的限制。如果在致动活塞处于停止位置时液压流体压力增加，则通过第二弹性构件的压缩来容纳附加压力。

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