公开(公告)号：US09156456B2

公开(公告)日：2015-10-13

申请号：US13956141

申请日：2013-07-31

Applicant: Bendix Spicer Foundation Brake LLC

Inventor： Brett S. Darner ,  Ken E. Scheckelhoff ,  Ronald S. Plantan

IPC: B60T8/88 ,  B60T11/32 ,  B60T11/28

CPC classification number: B60T11/326 ,  B60T11/28 ,  Y10T137/7838

Abstract: A brake system and a valve device for a brake system are provided which provide at least partial front brake actuation in the event of a failure in the front brake pneumatic supply circuit. The valve device may be configured as a biased orifice double check valve which permits compressed air flow from the front brake pneumatic supply circuit to a front brake actuator during normal brake operation, but in the event of lack of sufficient front brake pneumatic pressure permits compressed air to be supplied to the front brake actuator from a rear brake pneumatic supply circuit, as well as permitting compressed air in the front brake actuator to be ventilated back through the rear brake pneumatic supply circuit when the brake is released.

Abstract translation: 提供一种用于制动系统的制动系统和阀装置，其在前制动气动供给回路发生故障的情况下提供至少部分前制动器致动。 阀装置可以被构造为偏压孔双重止回阀，其允许在正常制动操作期间压缩空气从前制动器气动供应回路流向前制动器致动器，但是在缺乏足够的前制动气动压力的情况下允许压缩空气 从后制动器气动供给回路供给前制动执行器，并且当制动器被释放时，允许前制动器致动器中的压缩空气通过后制动气动供给回路通过。