| 摘要 |
PROBLEM TO BE SOLVED: To provide an ejector system for vehicle capable of inexpensively feeding much more evaporation fuel to an internal combustion engine while securing the function for feeding negative pressure to a brake booster, and also to provide a controller therefor. SOLUTION: The ejector system 100A for vehicle is provided with: an ejector 30 which generates higher negative pressure than the intake-manifold negative pressure Pm to be taken out from a suction passage in the inlet system 10 of the internal combustion engine 59 communicating with respective cylinders and the atmosphere, and which has a negative pressure-feeding port 31c for feeding the generated negative pressure to its chamber of the brake booster 22; a three-way valve 1 for communicating or blocking a passage in a first pathway introducing the evaporation fuel into the negative pressure-feeding port 31c; and an ECU 40A for controlling the three-way valve 1. The three-way valve 1 is arranged at the bifurcated point of the first pathway and a second pathway for introducing the evaporation fuel into the suction passage to be used for switching one to the other. COPYRIGHT: (C)2008,JPO&INPIT
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