| 摘要 |
An exhaust gas recirculation device includes: a first exhaust extraction route (EGR1) for extracting exhaust gas from engine (101) before it enters turbocharger (103) and directing it to engine intake (111); a second exhaust extraction route (EGR 2) for extracting exhaust gas that has been cooled by passing through turbocharger (103), muffler (115) and the body frame (121) and directing it to the engine intake; and valves (V1) and (V2) for controlling, based on operation conditions of the engine, a flow of exhaust gas directed to the engine intake by means of first exhaust extraction route (EGR1) and second exhaust extraction route (EGR2). Exhaust gas can be efficiently cooled. |
