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:
Mar. 04, 1997
Filed:
Dec. 22, 1994
Kazumi Yamazaki, Wako, JP;
Takeaki Nakajima, Wako, JP;
Koichi Hidano, Wako, JP;
Teruo Wakashiro, Wako, JP;
Takeshi Hara, Wako, JP;
Masaaki Horiuchi, Wako, JP;
Tomoyuki Kawakami, Tochigi, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
In an evaporative fuel processing device, an evaporative fuel passage communicating at one end to an upper space in a fuel tank is connected at the other end to a refueling line at a location corresponding to a negative pressure introducing hole provided in a lower portion of a tip end of a nozzle during refueling by a refueling nozzle which is constructed so that the refueling by the refueling nozzle is automatically stopped in response to a fuel liquid level reaching the negative pressure introducing hole during refueling. The draft resistance of an evaporative fuel passage interconnecting an inlet of the refueling line and a tank body is set larger than the draft resistance of an evaporative fuel passage interconnecting the tank body and a canister. Thus, the releasing of evaporative fuel from the fuel tank during refueling is effectively inhibited without use of a potentially unreliable seal.