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:
Jun. 03, 2008
Filed:
Nov. 28, 2006
Gaku Hatano, Saitama, JP;
Koichi Hidano, Saitama, JP;
Masakazu Kitamoto, Saitama, JP;
Shigeo Hidai, Saitama, JP;
Shoji Uhara, Saitama, JP;
Hiroshi Kitamura, Saitama, JP;
Takahiro Imamura, Saitama, JP;
Gaku Hatano, Saitama, JP;
Koichi Hidano, Saitama, JP;
Masakazu Kitamoto, Saitama, JP;
Shigeo Hidai, Saitama, JP;
Shoji Uhara, Saitama, JP;
Hiroshi Kitamura, Saitama, JP;
Takahiro Imamura, Saitama, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
In a fuel vapor release suppression system for a fuel tank, a main tank and a sub tank communicate with each other, and the sub tank and a canister communicate with each other. When the main tank has a higher temperature, fuel vapor of the main tank is supplied to the sub tank where the fuel vapor is liquefied. When the main tank has a lower temperature, fuel vapor of the sub tank is supplied to the main tank. At this time, low concentration fuel vapor is supplied from the canister to the main tank, thereby accelerating generation of fuel vapor corresponding to sub tank fuel vapor pressure, so that the sub tank fuel vapor pressure decreases. Therefore, liquefaction is accelerated in the sub tank when the main tank temperature increases. Thus, fuel vapor generated in a fuel tank is effectively liquified irrespective of ambient air temperature.