Search International and National Patent Collections

1. (WO2018139121) EVAPORATED FUEL TREATMENT DEVICE

Pub. No.:    WO/2018/139121    International Application No.:    PCT/JP2017/045723
Publication Date: Fri Aug 03 01:59:59 CEST 2018 International Filing Date: Thu Dec 21 00:59:59 CET 2017
IPC: F02M 25/08
Applicants: AISAN KOGYO KABUSHIKI KAISHA
愛三工業株式会社
Inventors: FUKUI, Keita
福井 啓太
YAMAZAKI, Makoto
山崎 誠
MIYABE, Yoshikazu
宮部 善和
Title: EVAPORATED FUEL TREATMENT DEVICE
Abstract:
An evaporated fuel treatment device 12 comprises a canister 13 that adsorbs evaporated fuel generated in a fuel tank 3 provided to a vehicle 1, a vapor passage 14 that connects the canister 13 and the fuel tank 3, and a shutoff valve 15 capable of closing off and opening up the vapor passage 14. When a specific event occurs in which the current position of the shutoff valve 15 is unclear and an initialization process becomes necessary, a first process is performed in which the shutoff valve 15 is operated by a first operation amount that is set as an operation amount that can reach an operation limit irrespective of the current position, and when the initialization process becomes necessary without the specific event occurring, a second process is performed in which the shutoff valve 15 is operated by a second operation amount that is an amount to reach an initial position from the current position and that is less than the first operation amount.