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Title:
FUEL VAPOR TREATMENT APPARATUS FOR VEHICLE
Document Type and Number:
Japanese Patent JP2012211564
Kind Code:
A
Abstract:

To provide a fuel vapor treatment apparatus for vehicles in which upsizing of a canister is suppressed and which is able to introduce fuel vapor to an intake system easily without performing complicated correction.

The fuel vapor treatment apparatus for vehicles includes: a direct purge channel 14 capable of supplying fuel vapor to a purge channel 14 not via a canister 11; a purge control valve 15 for controlling to open/close communication states between the canister 11 and an air-intake system 2 of an internal combustion engine E; a direct purge control valve 17 for controlling communications between a fuel tank 5 and the air-intake system by another opening and closing operation; and a two-way valve 12 provided in a charge channel 10. The fuel vapor treatment apparatus has a purge mode in which fuel vapor adsorbed in the canister 11 is purged to the air-intake system 2 of the internal combustion engine E by closing the direct purge control valve 17 and opening the purge control valve 15 during operation of the internal combustion engine E, and a direct purge mode in which fuel vapor in the fuel tank 5 is purged to the air-intake system 2 by closing the purge control valve 15 and opening the direct purge control valve 17.


Inventors:
Shimura, Takeshi
Imamura, Takahiro
Okayama, Satoshi
Application Number:
JP2011000078424
Publication Date:
November 01, 2012
Filing Date:
March 31, 2011
Export Citation:
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Assignee:
HONDA MOTOR CO LTD
International Classes:
F02M25/08; F02D41/02; F02D41/04
Domestic Patent References:
JPH1113559A1999-01-19
JPH05133290A1993-05-28
JPH0586997A1993-04-06
JPH0347454A1991-02-28
JPH07180581A1995-07-18
JPH1113559A1999-01-19
JPH05133290A1993-05-28
Attorney, Agent or Firm:
志賀 正武
高橋 詔男
佐伯 義文
鈴木 三義
西 和哉
村山 靖彦