| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel vapor supply device capable of quickly supplying fuel vapor, and capable of supplying a sufficient quantity of fuel vapor. <P>SOLUTION: When fuel injection is cut by an injector 17, a storage valve 84 and a supply valve 85 are closed, and an exhaust shutter 33 is closed to open a pressure valve 86. Thus, exhaust gas of an exhaust passage 32 is introduced into a gas chamber 63 of a storage tank 60 via an exhaust gas pipe 83. When the pressure of the gas chamber 63 increases, a partition wall 61 is swollen to the fuel vapor chamber 62 side, and the pressure of an fuel vapor chamber 62 is increased. When evaporated fuel pressure exceeds a predetermined value α, the exhaust shutter 33 is opened, and the pressure valve 86 is closed. When there is a starting request of an engine, the supply valve 85 is opened. Thus, fuel vapor is supplied to an intake passage 23 from the fuel vapor chamber 62 of the storage tank 60. <P>COPYRIGHT: (C)2012,JPO&INPIT |
