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    • 9. 发明申请
    • BRAKING SYSTEM WITH NON-SPRING PARKING BRAKE ACTUATOR
    • 具有非弹簧停车制动器的制动系统
    • WO2015021050A2
    • 2015-02-12
    • PCT/US2014049796
    • 2014-08-05
    • BENDIX COMMERCIAL VEHICLE SYS
    • PLANTAN RONALD SEBERLING CHARLES EHOFFMAN FRED W
    • F16D65/28
    • B60T13/58B60T13/36F16D65/28F16D2121/08F16D2125/12F16D2125/70F16D2127/06
    • A braking system is provided that enables application and release of a parking brake with fluid control and that also maintains application of the brake during a loss of fluid pressure—all without using springs and using only a single fluid control conduit. The brake actuator for the system includes a housing defining service and parking chambers. A pushrod in the parking chamber is configured for movement with a diaphragm in the chamber. The parking brake is applied by introducing fluid on one side of the diaphragm. A clutch surrounds the pushrod and includes a tooth configured to engage corresponding teeth on the pushrod to hold the position of the pushrod even during a loss of fluid pressure. The clutch is rotated under fluid control to move the clutch tooth into and out of alignment with the teeth on the pushrod to hold and release the parking brake.
    • 提供一种制动系统,其能够使用具有流体控制的驻车制动器的应用和释放,并且还可以在流体压力损失期间维持制动器的应用,而不使用弹簧并且仅使用单个流体控制导管。 该系统的制动器致动器包括限定服务和驻车室的壳体。 在停车室中的推杆被配置为在腔室中与隔膜一起运动。 通过在隔膜的一侧引入流体来施加驻车制动器。 离合器围绕推杆并且包括被配置为接合推杆上的对应的齿的齿,以便即使在流体压力的损失期间也保持推杆的位置。 离合器在流体控制下旋转以使离合器齿与推杆上的齿移动和脱离对准,以保持和释放驻车制动器。