Shanghai Universoon Autoparts Co., Ltd.

Shanghai Universoon Autotech Co., Ltd.

Zheng Xi

Yong Xi

Rujie Zhu

Zhen Zhang

Tao Wei

Zhou Yang

Chunling Zeng

Baoliang Xing

Zhiyang Lv

A rocker arm mechanism of an engine, a system and a method for two-stroke engine brake are provided. The rocker arm mechanism includes a first rocker arm, a second rocker arm and a connection mechanism. One end of the first rocker arm and one end of the second rocker arm is rotatably connected to a shaft, the other end of the first rocker arm is close to a valve of the engine, while the other end of the second rocker arm is close to a cam. The connection mechanism includes a connecting piston and a linkage mechanism. The connecting piston is disposed in the first rocker arm or the second rocker arm, the linkage mechanism is rotatably connected to one end of the connecting piston. The rocker arm mechanism may be used for engine cylinder deactivation and engine brake.

Rocker arm mechanism of engine, system and method for two-stroke engine brake

An engine valve actuating apparatus includes a housing that contains an activation piston bore and an actuation piston bore. The activation piston is disposed in the activation piston bore and configured to actuate an engine valve. The actuation piston includes at least one side surface that is in sliding contact with the inner surface of the actuation piston bore so that the actuation piston can slide within the actuation piston bore. The actuation piston also has a guide mechanism, which guides the first and second links to move in a plane between the first position and the second position. At least a part of the guide mechanism is below at least a part of the at least one side surface of the actuation piston.

Engine valve actuating apparatus

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

Internal combustion engine

Single valve compression release bridge brake

Growing community of inventors

Shanghai, China

Zheng Xi