Patent ID: 6557520
Filing Date: 2003-05-06
Classification: F02B,Y02T

Abstract:
A multizone combustion chamber comprising:a cylinder; a cylinder head located at one end of the cylinder; a piston that reciprocates in the cylinder; an inlet that supplies a gas into the combustion chamber during an induction stroke of the piston; and an injector that supplies a fuel into the combustion chamber; wherein the combustion chamber sealingly defines a primary chamber and at least a secondary chamber when the piston is located in a predetermined position near the cylinder head, the primary chamber and the secondary chamber containing respective mixtures of the gas and the fuel prior to combustion, and being sized such that compression combustion is initiated in the primary chamber by compression of the gas/fuel mixture in the primary chamber, while delayed compression combustion occurs in the secondary chamber due to compression of the gas/fuel mixture in the secondary chamber.