Patent ID: 6105555
Filing Date: 2000-08-22
Classification: F01L,F02B,F02D,Y02T

Abstract:
An internal combustion engine, comprising:an engine body;a combustion chamber formed in said engine body;an intake air system for delivering charge air to said combustion chamber;an exhaust gas system positioned to direct exhaust gas from said combustion chamber, said exhaust gas system including an exhaust port formed in said engine body and an exhaust valve mounted to open and close said exhaust port;a turbocharger including a turbine mounted in said exhaust gas system downstream of said exhaust port and a compressor operatively connected to said turbine and mounted in said intake air system; anda turbocharger power enhancing system operatively connected to said exhaust valve, said turbocharger power enhancing system including a fuel rate reduction determining means for determining a reduction in a rate of fuel delivery to said combustion chamber and an exhaust valve control device adapted to vary a timing of opening of said exhaust valve in response to said reduction in the rate of fuel delivery to said combustion chamber.