公开(公告)号：US20150144096A1

公开(公告)日：2015-05-28

申请号：US14553177

申请日：2014-11-25

Applicant: PACBRAKE COMPANY

Inventor： Vincent MENEELY ,  Robert PRICE

IPC: F01L13/06 ,  F02D13/04

CPC classification number: F01L13/065 ,  F01L1/18 ,  F01L1/181 ,  F01L1/26 ,  F01L1/462 ,  F01L9/02 ,  F01L13/06 ,  F02D13/04

Abstract: A compression-release brake system comprises an exhaust rocker arm, an actuation piston slidable in a piston bore in the exhaust rocker arm so as to press an exhaust valve, a supply conduit formed within the exhaust rocker arm, and an exhaust valve reset device mounted to the exhaust rocker arm. The actuation piston defines an actuation piston cavity within the actuation piston bore between the piston bore and the actuation piston. The exhaust valve reset device includes a reset check valve disposed between the supply conduit and the actuation piston cavity to hydraulically lock the actuation piston cavity by closing the reset check valve when a pressure of the hydraulic fluid within the actuation piston cavity exceeds the pressure of the hydraulic fluid in the supply conduit. The reset check valve is biased closed by the pressure of the hydraulic fluid within the actuation piston cavity during the brake-on mode.

Abstract translation: 压缩释放制动系统包括排气摇臂，致动活塞，其能够在排气摇臂中的活塞孔中滑动，以便按压排气阀，形成在排气摇臂内的供应管道和安装在排气摇臂上的排气门复位装置 到排气摇臂。 致动活塞在活塞孔和致动活塞之间的致动活塞孔内限定致动活塞腔。 排气门复位装置包括复位止回阀，该复位止回阀设置在供给管道和致动活塞腔之间，以在致动活塞腔内的液压流体的压力超过压力时关闭复位止回阀来液压地锁定致动活塞腔 供应管道中的液压流体。 在制动器打开模式期间，复位止回阀由致动活塞腔内的液压流体的压力偏压闭合。