Patent ID: 9255551
Filing Date: 2016-02-09
CPC Classification: F02B,F02D,F02M,Y02T

Claim Text:
1. A fouling free clean exhaust gas recirculation (EGR) system of a diesel-gasoline dual fuel powered engine in which gasoline and air are pre-mixed and supplied to cylinders and then a diesel fuel is injected and combusted together, comprising: a directly-exhaust cylinder including a first exhaust valve connected to an exhaust manifold directly connected to an after treatment device; and an EGR cylinder including a second exhaust valve connected to an EGR line and supplying an EGR gas from the EGR cylinder to the diesel-gasoline dual fuel powered engine; wherein the EGR line is connected with the EGR cylinder without being connected with the directly-exhaust cylinder, wherein a first bypass valve is provided on the EGR line between the EGR cylinder and the cooler, and wherein a second bypass valve is provided between the first bypass valve and the after treatment device to transfer the EGR gas, which has passed through the first bypass valve, to a turbine of the turbo charger or to the after treatment device.