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1. 发明授权

US4777867A Releasable spring ring device for a spring-operated brake actuator 失效
标题翻译：用于弹簧制动执行器的可释放的弹簧环装置
公开(公告)号：US4777867A
公开(公告)日：1988-10-18
申请号：US89851
申请日：1987-08-27
申请人： Lars M. Severinsson , Krister E. Ljung , Fred S. Emilsson
发明人： Lars M. Severinsson , Krister E. Ljung , Fred S. Emilsson
IPC分类号： F16D65/28 , B60T1/06 , B60T13/38 , B60T17/08 , B60T17/16 , F01B9/00
CPC分类号： B60T17/086 , B60T17/083
摘要： A device for discontinuing and automatically restoring the operational function of a spring brake actuator. The device includes a piston with a piston rod and a spring for actuating the piston and piston rod in a working direction for brake application at falling brake fluid pressure on the piston. A slitted, resilient locking ring is arranged in grooves facing each other in the piston rod and a piston rod sleeve coaxial therewith. The locking ring can either be constrained to rest in both of the grooves, so that the piston rod and piston rod sleeve are locked together, or be free to be forced completely into one of the grooves, which is at least as deep as the thickness of the ring, so that the piston rod and piston rod sleeve are free to move independently of each other. In a compartment in a piston rod flange are arranged a movable locking yoke, which can engage heads at the respective ends of the ring for keeping them together, and a locking cube, which is movable by a control rod substantially perpendicularly to the yoke will move the yoke toward the locking ring and lock the yoke in engaging condition with the ring when the locking cube is above the yoke.
摘要翻译：用于停止并自动恢复弹簧制动器致动器的操作功能的装置。该装置包括具有活塞杆的活塞和用于在工作方向上致动活塞和活塞杆的活塞，用于在活塞上的下降的制动液压力下进行制动。在活塞杆中彼此面对的槽和与其同轴的活塞杆套筒上布置有一个有条纹的弹性锁定环。锁定环可以被限制在两个凹槽中，使得活塞杆和活塞杆套筒被锁定在一起，或者可以自由地被迫使其完全地压入其中一个凹槽中，其中至少与厚度一样深的环，使得活塞杆和活塞杆套筒彼此独立地自由移动。在活塞杆凸缘的隔室中布置有可移动的锁定轭，其可以在环的相应端部处接合头部以将它们保持在一起，并且可以通过基本垂直于轭的控制杆移动的锁定立方体将移动当锁定立方体在轭架之上时，轭向锁定环并锁定轭与环的接合状态。

2. 发明授权

US4716995A Parking brake arrangement for a rail vehicle brake unit 失效
标题翻译：轨道车辆制动单元的驻车制动装置
公开(公告)号：US4716995A
公开(公告)日：1988-01-05
申请号：US799170
申请日：1985-11-18
申请人： Bo S. A. Nilsson , Krister E. Ljung
发明人： Bo S. A. Nilsson , Krister E. Ljung
IPC分类号： B60T17/08 , F16D65/14 , F16D65/28 , F16D65/52
CPC分类号： B60T17/08 , F16D65/28 , F16D2125/60 , F16D2125/64
摘要： A rail vehicle brake unit having a tubular housing and a slack adjuster movable therein in a brake force applying direction in response to a braking force applied to a push rod has a simple parking brake attachment. Thus, a sleeve abutting the slack adjuster presents a movable shoulder, which in turn is coupled with a pivoted parking brake lever for movement thereby to actuate the brakes.
摘要翻译：轨道车辆制动单元具有简单的驻车制动器附件，其具有管状壳体和可在其中沿制动力施加方向在其中移动的松弛调节器，其响应于施加到推杆上的制动力。因此，邻接松弛调节器的套筒呈现可移动的肩部，该肩部又与枢转的驻车制动杆联接以便运动，从而致动制动器。

3. 发明授权

US4745849A Spring brake actuator for a rail vehicle brake unit 失效
标题翻译：用于轨道车辆制动单元的弹簧制动器执行器
公开(公告)号：US4745849A
公开(公告)日：1988-05-24
申请号：US933899
申请日：1986-11-24
申请人： Fred S. Emilsson , Krister E. Ljung
发明人： Fred S. Emilsson , Krister E. Ljung
IPC分类号： B60T13/38 , B60T17/08 , B61H11/14 , F16D65/28 , F01B7/00 , F01B31/00
CPC分类号： B60T17/083
摘要： A spring brake actuator for a rail vehicle brake unit, comprising a cylinder and a rod shaped member. The actuator includes a cylinder-shaped housing, a piston with a piston rod and a spring intended to act in a brake applying direction.In order to obtain a truly modular system the actuator, as an integrated and self-contained unit, is arranged on the rod-shaped member of the brake unit. Its housing is attached to the brake unit cylinder. The actuator piston rod is tubular and slidable on the rod-shaped member.
摘要翻译：一种用于轨道车辆制动单元的弹簧制动致动器，包括缸和杆形构件。致动器包括圆柱形壳体，具有活塞杆的活塞和旨在作用在制动器施加方向上的弹簧。为了获得真正的模块化系统，致动器作为一个集成且独立的单元布置在制动单元的杆状构件上。其外壳连接到制动单元气缸。致动器活塞杆是管状的并且可在杆状构件上滑动。

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