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:
Nov. 18, 2014
Filed:
Apr. 04, 2012
Takeshi Shimura, Wako, JP;
Ikuo Hara, Wako, JP;
Tadaaki Nagata, Wako, JP;
Shinji Kobayashi, Wako, JP;
Takahiro Imamura, Wako, JP;
Takeshi Shimura, Wako, JP;
Ikuo Hara, Wako, JP;
Tadaaki Nagata, Wako, JP;
Shinji Kobayashi, Wako, JP;
Takahiro Imamura, Wako, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A fuel cap includes a communication chamber configured to make a charge path and the inside of the fuel tank communicate with each other while in a closed state. The communication chamber includes: a positive pressure control valve configured to open, and send evaporated fuel, which occurs inside the fuel tank, to an evaporated fuel reservoir via the communication chamber and the charge path when the internal pressure of the fuel tank becomes equal to or greater than a predetermined pressure; and a negative pressure control valve configured to open, and send air from the evaporated fuel reservoir to the fuel tank via the communication chamber and the charge path when the internal pressure of the fuel tank becomes equal to or less than the predetermined pressure. In addition, a key cylinder sets the negative pressure control valve open upon inserting a key into the key cylinder.