Patent ID: 6640754
Filing Date: 2003-11-04
Classification: F02B,F02D,Y02T

Abstract:
A method for operating an internal combustion engine comprising at least one combustion chamber formed by at least a first member and a second member that moves relative to the first member, the second member being coupled to an output shaft such that movement of the second member causes the output shaft to rotate, an intake port that is in communication with the combustion chamber and an intake passage and is opened and closed by an intake valve that is actuated by a valve actuating system, a fuel supply system and air supply system configured to provide a substantially homogeneous air/fuel charge, which is comprised of mixed fuel and air, to the combustion chamber, and a control system configured to control the valve actuating system, the method comprising:forming a substantially homogenous air/fuel charge; introducing at least the air of the air/fuel charge into the combustion chamber through the intake port; advancing the auto ignition of the air/fuel charge by increasing a pressure differential between the intake port and the combustion chamber when the intake passage is in communication with the combustion chamber; compressing the air/fuel charge; and auto-igniting the air/fuel charge due to the compression of the air/fuel charge.