Controlling the engine output power by varying inlet or exhaust valve operating characteristics

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F02Combustion engines F02DCONTROLLING COMBUSTION ENGINES

F02D13/00Controlling the engine output power by varying inlet or exhaust valve operating characteristics

F02D13/02during engine operation F02D13/0203Variable control of intake and exhaust valves F02D13/0207changing valve lift or valve lift and timing F02D13/0211the change of valve timing is caused by the change in valve lift F02D13/0215changing the valve timing only F02D13/0219by shifting the phase F02D13/0223Variable control of the intake valves only F02D13/0226changing valve lift or valve lift and timing F02D13/023the change of valve timing is caused by the change in valve lift F02D13/0234changing the valve timing only F02D13/0238by shifting the phase F02D13/0242Variable control of the exhaust valves only F02D13/0246changing valve lift or valve lift and timing F02D13/0249changing the valve timing only F02D13/0253Fully variable control of valve lift and timing using camless actuation systems such as hydraulic, pneumatic or electromagnetic actuators F02D13/0257Independent control of two or more intake or exhaust valves respectively F02D13/0261Controlling the valve overlap F02D13/0265Negative valve overlap for temporarily storing residual gas in the cylinder F02D13/0269Controlling the valves to perform a Miller-Atkinson cycle F02D13/0273Multiple actuations of a valve within an engine cycle F02D13/0276Actuation of an additional valve for a special application F02D13/028for two-stroke engines F02D13/0284Variable control of exhaust valves only F02D13/04Using engine as brake F02D13/06Cutting-out cylinders F02D13/08for rendering engine inoperative or idling