Patent ID: 7900597
Filing Date: 2011-03-08
Classification: F01L,F02D

Abstract:
1. A compression-release brake system for operating at least one exhaust valve of an internal combustion engine during a compression-release engine braking operation, said system comprising: an exhaust rocker assembly for operating said at least one exhaust valve, said exhaust rocker assembly including an exhaust rocker arm driven by an exhaust cam member; a self-contained compression brake control module operatively coupled to said at least one exhaust valve for controlling a lift and a phase angle of said at least one exhaust valve; and a source of a pressurized hydraulic fluid in fluid communication with said compression brake control module; said compression brake control module provided to maintain said at least one exhaust valve open during a compression stroke of the engine when said engine performs the compression-release engine braking operation; said compression brake control module including: