| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prevent injection fuel for premixture combustion from remaining unburnt as much as possible when the premixture combustion is performed in a compression ignition combustion engine equipped with a fuel injection valve in an air intake port. <P>SOLUTION: In the premixture compression ignition internal combustion engine 1, the premixture combustion is performed by forming the premixed gas by the fuel injection at an earlier stage than the stage near the compression stroke top dead center. The internal combustion engine 1 is provided with a fuel injection valve 7 to inject the fuel for the premixture combustion, a first air intake passage 3a equipped with the fuel injection valve 7 and connected to a cylinder 2 of the premixture compression ignition internal combustion engine to supply fuel into the cylinder, a second air intake passage 3b connected to the cylinder 2, to supply only fresh air into the cylinder 2. The air intake supply direction of the first air intake passage 3a is set in the central part direction of the cylinder 2, and the air intake supply direction of the second air intake passage is set in the direction contacting the wall surface of the cylinder 2. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
