The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 11, 2017
Filed:
Jul. 09, 2015
Aisan Kogyo Kabushiki Kaisha, Obu-shi, Aichi-ken, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Ryuji Miyazaki, Kariya, JP;
Hidetoshi Tsutsumi, Kakamigahara, JP;
Tomonori Nakatsuka, Nissin, JP;
Kinji Morihiro, Toyota, JP;
Koji Honda, Toyota, JP;
AISAN KOGYO KABUSHIKI KAISHA, Obu-Shi, Aichi-Ken, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-Shi, Aichi-Ken, JP;
Abstract
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.