| 摘要 |
PURPOSE:To relieve both emission of NOx and generation of black smoke by providing an EGR device which feeds back some of exhaust gas into a suction system, and a fuel injection valve which has fuel injected into a feed back passage of the EGR device. CONSTITUTION:The collecting space 105 of the exhaust manifold of a Diesel engine 101 is connected to an EGR device 106 as well as to an exhaust pipe. A fuel injection valve 114 is provided in a feedback passage of the EGR device 106. While exhaust gas is fed back to a suction system, fuel is injected into the exhaust gas to be evaporated by the heat thereof, hence achieving reduction of noxious composition and restraint of generation of black smoke. |
