| 摘要 |
PROBLEM TO BE SOLVED: To improve the capacity of evaporated fuel treatment in an engine with a supercharger. SOLUTION: On the downstream side of a turbocharger 20, a pressure accumulation tank 70 for storing supercharging pressure is provided via pressure accumulated piping 71. Also, a purge system 51 for supplying evaporated fuel generated from a fuel tank 49 to an intake system 21 is provided. The pressure accumulation tank 70 and the purge system 51 are connected via an ejector 58. By ejecting compressed air from the pressure accumulation tank 70 toward an input port 58a of the ejector 58, forcible feeding of compressed air toward an output port 58c with evaporated fuel being involved from an intake port 58b is made. Evaporated fuel to the intake system 21 for treatment is thereby fed even in an engine operation area where intake pipe negative pressure is not generated. COPYRIGHT: (C)2008,JPO&INPIT
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