Patent ID: 6553962
Filing Date: 2003-04-29
Classification: F02D,Y02T

Abstract:
An arrangement of a four-cycle internal combustion engine for an automotive vehicle comprising:an engine controller cognizant of a desired deceleration condition for a vehicle said engine is powering; and at least a first combustion chamber with a reciprocating piston mounted therein, said piston having a top dead center and a bottom dead center position, said first combustion chamber having a cam driven exhaust poppet valve which can be selectively disabled to a closed position to deactivate said first combustion chamber in response to a signal given by said engine controller, said first combustion chamber also having a variable phase cam driven intake poppet valve responsive to a signal given by said engine controller to selectively set the opening and closing operation of said intake poppet valve to be generally symmetrically about one of said center positions during said first combustion chamber deactivation during said vehicle deceleration.