Patent ID: 6866017
Filing Date: 2005-03-15
Classification: F01L,F02B,F02D,F02M,Y02T

Abstract:
1. An engine braking system for producing a bleeder braking event in a multiple cylinder engine, wherein each cylinder is connected to intake and exhaust manifolds, has an engine valve, and has a piston which reciprocates in the engine cylinder to provide intake, compression, combustion, and exhaust strokes, the engine braking system comprising: a hydraulic fluid source; a hydraulic valve; a first engine valve actuator operatively connected to a first engine cylinder; a second engine valve actuator operatively connected to a second engine cylinder; a hydraulic circuit connecting said hydraulic valve to said fluid source and to each of said first and second engine valve actuators; and means for controlling said hydraulic valve to cause each of said first and second engine valve actuators to actuate and hold open the engine valve during at least a substantial portion of the compression, combustion, and exhaust strokes.