Patent ID: 6739295
Filing Date: 2004-05-25
Classification: F01L,F02B,F02D,F02M,Y02T

Abstract:
A compression ignition internal combustion engine for operating by switching a spark ignition combustion using an ignition device and a compression ignition combustion for self-igniting a mixture by piston compression comprising:variable valve mechanisms for varying at least one of valve timings and valve lifts of an intake valve and an exhaust valve; intake air regulating means for varying an amount of air intake into a combustion chamber on an upstream side of a combustion chamber inlet of the compression ignition internal combustion engine; and control means for controlling said variable valve mechanisms and said intake air regulating means during a compression ignition combustion so as to perform a compression ignition combustion; wherein said control means controls said variable valve mechanisms so as to reduce valve lifts of said exhaust valve during a compression ignition combustion.