Patent ID: 6293248
Filing Date: 2001-09-25
Classification: F01L

Abstract:
A two-cycle compression brake apparatus, comprising:a positive power hydraulic lash adjuster positioned in a travel path of a power rocker arm and being capable of opening an associated at least one valve when a hydraulic fluid is held in said positive power hydraulic lash adjuster; anda compression brake hydraulic lash adjuster positioned on a compression brake rocker arm and positioned over said associated at least one engine valve and being capable of opening said associated at least one valve when said hydraulic fluid is held in said compression brake hydraulic lash adjuster;wherein in a positive power mode said hydraulic fluid is held in said positive power hydraulic lash adjuster to actuate said at least one associated valve while said compression brake hydraulic lash adjuster does not actuate said at least one associated valve, and in a compression braking mode said hydraulic fluid is held in said compression brake hydraulic lash adjuster to actuate said at least one associated valve while said positive power hydraulic lash adjuster does not actuate said at least one associated valve so that at least one exhaust valve is opened near a top dead center position of an associated piston while at least one intake valve is opened near a bottom dead center position of said associated piston to perform said two-cycle engine compression braking.