公开(公告)号：US20190257228A1

公开(公告)日：2019-08-22

申请号：US16375973

申请日：2019-04-05

Applicant: Shanghai Universoon Auto Parts Co., Ltd.

Inventor： Yong Xi ,  Zheng Xi

IPC: F01L13/06 ,  F01L1/26 ,  F02D13/04 ,  F01L1/08 ,  F01L1/18

Abstract: A single valve compression release bridge brake is provided. The single valve compression release bridge brake includes a braking piston (160) integrated into an inner end of a valve bridge (400) which is located under a rocker arm (210) of an engine. The braking piston (160) is slidably disposed in a braking piston bore (190) opened downwards from the inner end of the valve bridge (400). The lower end of the braking piston (160) is connected to the inner exhaust valve (3001). Oil is supplied to the braking piston bore (190) in the valve bridge (400). The inner end of the valve bridge (400) above the braking piston (160) is pushed upwards against the rocker arm (210) by oil pressure, and a hydraulic linkage is formed between the braking piston (160) and the valve bridge (400). A braking cam lobe (232,233) actuates the rocker arm (210), the inner end of the valve bridge (400), the hydraulic linkage, the braking piston (160), and finally the inner exhaust valve (3001) for the single valve compression release bridge brake.

公开(公告)号：US20170241305A1

公开(公告)日：2017-08-24

申请号：US15517957

申请日：2015-05-21

Applicant: Shanghai Universoon Auto Parts Co., Ltd.

Inventor： Yong Xi ,  Zhou YANG ,  Rujie ZHU

IPC: F01L13/06 ,  F01L1/18 ,  F01L1/26 ,  F01L1/20 ,  F01L1/047

CPC classification number: F01L13/06 ,  F01L1/047 ,  F01L1/08 ,  F01L1/181 ,  F01L1/20 ,  F01L1/26 ,  F01L1/267 ,  F01L13/0036 ,  F01L2001/186 ,  F01L2013/0052 ,  F01L2105/00 ,  F02D13/04

Abstract: An engine braking method includes the steps of engaging a cam roller(235) of an internal combustion engine with an engine power cam(230) for an engine power operation; disengaging the cam roller(235) from the engine power cam(230); losing a motion from the engine power cam(230) and a motion of an engine valve(301) associated with the motion from the engine power cam(230); engaging the cam roller(235) with an engine braking cam(2302) for an engine braking operation; transmitting a motion from the engine braking cam(2302) to the engine valve(301); and generating an engine valve motion for the engine braking operation. An engine braking system includes an engine power cam(230) of an internal combustion engine; an engine braking cam(2302) of the internal combustion engine; and a cam roller(235) that is designed to engage with the engine power cam(230) for an engine power operation and to engage with the engine braking cam(2302) for an engine braking operation.

公开(公告)号：US10329972B2

公开(公告)日：2019-06-25

申请号：US15569453

申请日：2015-06-08

Applicant: Shanghai Universoon Auto Parts Co., Ltd.

Inventor： Yong Xi ,  Zheng Xi

IPC: F01L9/02 ,  F01L13/06 ,  F02D13/04 ,  F01L1/08 ,  F01L1/18 ,  F01L1/26

Abstract: A single valve compression release bridge brake is provided. The single valve compression release bridge brake includes a braking piston (160) integrated into an inner end of a valve bridge (400) which is located under a rocker arm (210) of an engine. The braking piston (160) is slidably disposed in a braking piston bore (190) opened downwards from the inner end of the valve bridge (400). The lower end of the braking piston (160) is connected to the inner exhaust valve (3001). Oil is supplied to the braking piston bore (190) in the valve bridge (400). The inner end of the valve bridge (400) above the braking piston (160) is pushed upwards against the rocker arm (210) by oil pressure, and a hydraulic linkage is formed between the braking piston (160) and the valve bridge (400). A braking cam lobe (232, 233) actuates the rocker arm (210), the inner end of the valve bridge (400), the hydraulic linkage, the braking piston (160), and finally the inner exhaust valve (3001) for the single valve compression release bridge brake.

公开(公告)号：US20180087413A1

公开(公告)日：2018-03-29

申请号：US15569453

申请日：2015-06-08

Applicant: Shanghai Universoon Auto Parts Co., Ltd.

Inventor： Yong Xi ,  Zhen Xi

IPC: F01L13/06

CPC classification number: F01L13/065 ,  F01L1/08 ,  F01L1/181 ,  F01L1/267 ,  F02D13/04

Abstract: A single valve compression release bridge brake is provided. The single valve compression release bridge brake includes a braking piston (160) integrated into an inner end of a valve bridge (400) which is located under a rocker arm (210) of an engine. The braking piston (160) is slidably disposed in a braking piston bore (190) opened downwards from the inner end of the valve bridge (400). The lower end of the braking piston (160) is connected to the inner exhaust valve (3001). Oil is supplied to the braking piston bore (190) in the valve bridge (400). The inner end of the valve bridge (400) above the braking piston (160) is pushed upwards against the rocker arm (210) by oil pressure, and a hydraulic linkage is formed between the braking piston (160) and the valve bridge (400). A braking cam lobe (232, 233) actuates the rocker arm (210), the inner end of the valve bridge (400), the hydraulic linkage, the braking piston (160), and finally the inner exhaust valve (3001) for the single valve compression release bridge brake.