| 摘要 |
PURPOSE:To promote the improvement of an output by providing control valves respectively in a pipe, which bypasses a turbine of a supercharger, and in an exhaust gas recirculation(EGR) pipe to be controlled in accordance with an engine speed and a load and enabling EGR to be attained with no throttling of exhaust and intake. CONSTITUTION:An exhaust gas recirculation(EGR) control device provides a bypass pipe 13, bypassing a turbine 6a of a supercharger 6, in an exhaust pipe 11 and a flow control valve 16 and a turbine 14a in this bypass pipe 13. An EGR use compressor 14b, connected to the turbine 14a, and a flow control valve 15 are provided in an EGR pipe 12. Inputting detection values of an engine speed sensor 17 and a load sensor 18 to a controller 1, and being based on these detection values, the controller 1 controls both the flow control valves 15, 16 in their opening and an EGR quantity. |
