Patent ID: 9638146
Date: 2017-05-02
CPC Classifications: F02B,F02D,F02M,F02P,Y02T

Claim:
1. A gasoline direct-injection engine where compression self-ignition combustion in which mixture gas containing gasoline self-ignites within an interior of a combustion chamber of a cylinder is performed, the engine comprising: the cylinder having a volume that changes as a piston reciprocates inside the cylinder; an injector for directly injecting fuel at least containing gasoline into the cylinder; an intake port for introducing intake air into the cylinder through an inlet; an exhaust port for discharging exhaust gas from inside of the cylinder through an outlet; an intake valve for opening and closing the inlet; an exhaust valve for opening and closing the outlet; and an ozone generating system for generating ozone inside the cylinder, including: wherein when the high-voltage control device is operated to apply the voltage onto the electrode, electric discharge occurs between the part of the electrode within the cylinder and the walls of the cylinder, and ozone is generated inside the cylinder due to an effect of the electric discharge, wherein a combustion pattern is provided for performing a compression stroke injection in which the injector injects the fuel on compression stroke, and causing the mixture gas formed by the fuel injection to self-ignite to combust, wherein when the combustion pattern is applied, ozone is generated by applying the voltage via the high-voltage control device onto the electrode during a period synchronized with the compression stroke injection, and wherein the injector is provided on the cylinder, adjacent to the electrode at a central part of a top surface of the combustion chamber facing the interior of the combustion chamber.