| 摘要 |
PURPOSE:To surely perform combustion of mixture and improve fuel consumption by forming a feed nozzle to feed exhaust gas (or air) in the proximity of an intake valve, and blowing out exhaust gas from the feed nozzle synchronizing with the section stroke of an internal combustion engine. CONSTITUTION:When an EGR device is used as an exhaust gas for pumping loss feed device, a control valve 20 is provided between on the way of an exhaust gas recovering pipe 23 connecting its upper stream end to a recovery port 13a formed on an exhaust manifold 13, and the lower stream end of the recovering pipe 23 is connected to the introducing port 31 of a rotary valve 30 as a feed timing control means to inject exhaust gas synchronizing with the suction stroke of an engine 1. The control valve 20 is controlled for its opening degree with negative suction pressure through a control valve 38 controlled according to the load and the rotating speed of the engine. A feed nozzle 37a arranged on the part facing an intake valve 9 in an intake passage 7 is connected to the feed port of the rotary valve 30 through piping.
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