| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide technology capable of controlling combustion deterioration to further improve an EGR rate in an exhaust recirculation device of an internal combustion engine for being stratified an EGR gas and air in a combustion chamber. <P>SOLUTION: In the exhaust recirculation device of an internal combustion engine, an EGR device recirculating a part of exhaust gas as an EGR gas from the internal combustion engine to a combustion chamber is provided, an intake port communicating to the combustion chamber of the internal combustion engine has a double pipe structure in which an inner passage with smaller in a diameter than the inner diameter of the intake port and an outer passage which is a space between inner wall surfaces of the inner passage and the intake port are formed, an intake passage of the internal combustion engine communicates to the inner passage, and the EGR gas is recirculated to the outer passage by the EGR device. <P>COPYRIGHT: (C)2012,JPO&INPIT |
