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1. 发明授权

US4448458A Shut-off cylinder for a supply accumulator of a hydraulic brake system 失效
标题翻译：用于液压制动系统的蓄能器的关闭气缸
公开(公告)号：US4448458A
公开(公告)日：1984-05-15
申请号：US324102
申请日：1981-11-23
申请人： George T. Knothe , Robert A. Mayfield
发明人： George T. Knothe , Robert A. Mayfield
IPC分类号： B60T11/32 , B60T13/16 , B60T13/22 , B60T17/18 , B60T15/46
CPC分类号： B60T17/18 , B60T11/323 , B60T13/16 , B60T13/22
摘要： A shut-off cylinder for use in a hydraulic braking system comprising a cylindrical housing, an inlet end cap and an outlet end cap received and secured in the open ends of the housing, the inlet end cap having an inlet port in fluid communication with the interior of the housing and connected to an inflow source of hydraulic fluid from a hydraulic reservoir of the braking system, the outlet end cap having an outlet port in fluid communication with the interior of the housing and connected at its output end to an outflow source of hydraulic fluid to the braking system, a piston slidably received in the interior of the housing between the inlet end cap and the outlet end cap, a coil spring received in the space between the piston and the outlet end cap biasing the movement of the piston under normal operating conditions against the pressure of the inflow source, a by-pass tube communicating with the inlet and outlet ports of the housing, a valve for opening and closing communication between the by-pass tube and the inlet or outlet port, whereby when the valve is open, hydraulic fluid passes from the by-pass tube into the interior of the housing between the outlet end cap and the piston, and whereby when the valve is closed, the bodies of hydraulic fluid on opposite sides of the piston are isolated from each other, such that under failure conditions of the braking system the piston travels toward the outlet end cap until it encounters the same and stops, thus discharging only the volumetric capacity of the cylinder itself.
摘要翻译：一种用于液压制动系统的截止缸，包括圆柱形壳体，入口端盖和接收并固定在壳体的开口端的出口端盖，入口端盖具有与流体连通的入口端口壳体的内部并且连接到来自制动系统的液压储存器的液压流体的流入源，出口端盖具有与壳体的内部流体连通并且在其输出端处连接到出口端口的流出源液压流体到制动系统，可滑动地容纳在入口端盖和出口端盖之间的壳体内部的活塞，容纳在活塞和出口端盖之间的空间中的螺旋弹簧，其偏压活塞的运动相对于流入源的压力的正常操作条件，与壳体的入口和出口连通的旁通管，用于打开和关闭通信的阀旁通管和入口或出口，由此当阀打开时，液压流体从旁通管通过出口端盖和活塞之间的壳体内部，并且当阀是关闭时，活塞相对侧上的液压流体彼此隔离，使得在制动系统的故障条件下，活塞向着出口端盖行进，直到其遇到并停止，从而仅排出容积的气缸本身。

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