公开(公告)号：US09702321B2

公开(公告)日：2017-07-11

申请号：US14795018

申请日：2015-07-09

申请人： AISAN KOGYO KABUSHIKI KAISHA ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Ryuji Miyazaki ,  Hidetoshi Tsutsumi ,  Tomonori Nakatsuka ,  Kinji Morihiro ,  Koji Honda

IPC分类号： F02M25/08 ,  F02D41/00 ,  F02D41/14

CPC分类号： F02M25/0836 ,  F02D41/0032 ,  F02D41/0042 ,  F02D2041/1431 ,  F02D2200/0406 ,  F02M25/089

摘要： A fuel supply system adapted to supply fuel to an internal combustion engine has both a check valve and a purge valve disposed in a purge passage that extends from a canister to connect with an intake passage of the internal combustion engine. A controller estimates a pressure within an intermediate purge passage of the purge passage located between the check valve and the purge valve without relying on the use of a separate pressure detection device to provide information regarding the same.

公开(公告)号：US10273892B2

公开(公告)日：2019-04-30

申请号：US14794998

申请日：2015-07-09

申请人： AISAN KOGYO KABUSHIKI KAISHA ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Ryuji Miyazaki ,  Hidetoshi Tsutsumi ,  Tomonori Nakatsuka ,  Kinji Morihiro ,  Koji Honda

IPC分类号： F02D41/00 ,  F02M61/14 ,  F02M25/08

摘要： A fuel supply system for use with an internal combustion engine has a check valve and a purge valve disposed in a purge passage that extends from a canister to connect with an intake passage of the internal combustion engine. A controller regulates the purge valve open with a first opening degree or a first duty ratio during a purge operation. The controller may also regulate the purge valve to open with a second opening degree larger than the first opening degree or a second duty ratio larger than the first duty ratio a predetermined time after initiating the purge operation.