| 摘要 |
PROBLEM TO BE SOLVED: To provide an evaporated fuel treating device capable of specifying one of a plurality of purge valves in which defect occurs. SOLUTION: In this evaporated fuel treating device 10 of an internal combustion engine, a purge gas is introduced in each cylinder group from a canister 11 shared by a plurality of cylinder groups 2L, 2R with purge valves 14L, 14R for each cylinder group interposed therebetween. The evaporated fuel treating device comprises a pressure sensor 23 for detecting a pressure in the canister to be changed according to the state of the operation of the purge valves 14L, 14R, and engine computer units 3L, 3R as abnormality determination means which indicates a predetermined operation to the purge valve 14L to be determined by selecting any one purge valve 14L as a purge valve to be determined while the other purge valve 14R performs the operation for selecting the purge valve held in a specified state, and determines the presence or absence of the abnormality of the purge valve 14L to be determined based on a physical amount detected by the pressure sensor 23 according to the operation for selecting the purge valve. COPYRIGHT: (C)2007,JPO&INPIT
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