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:
Feb. 11, 2020
Filed:
Jan. 13, 2018
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Aisan Kogyo Kabushiki Kaisha, Obu-shi, Aichi-ken, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, JP;
AISAN KOGYO KABUSHIKI KAISHA, Obu-shi, JP;
Abstract
An evaporated fuel treatment device executes a pressure reducing control while monitoring inner pressure of a fuel tank, so that when the inner pressure of the fuel tank exceeds a predetermined value prior to fueling to the fuel tank, pressure reduction progresses within a range that the flow rate of a vapor passage does not exceed the boundary flow rate where the vapor passage is closed by a valve element of an ORVR valve, and also a valve opening speed of the closing valve is made higher as the inner pressure of the fuel tank becomes lower.