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:
Aug. 29, 2000
Filed:
Nov. 24, 1998
Takashi Hashimoto, Kanagawa-ken, JP;
Masami Honma, Kanagawa-ken, JP;
Toshihide Kimisawa, Kanagawa-ken, JP;
Nissan Motor Co., Ltd., Kanagawa-ken, JP;
Nifco Inc., Kanagawa-ken, JP;
Abstract
A chamber structure is provided which is able to flow down fuel smoothly at a desired flow rate. A chamber main body is fixed onto an inner bottom 1a of a fuel tank of a vehicle, and a suction port of a fuel pump is inserted into an inside of the chamber main body. A through hole is formed in a peripheral wall of the chamber main body. A fuel tank side through hole for connecting an inside of the fuel tank and a negative pressure chamber being connected to the first through hole is arranged in a vicinity of the inner bottom of the fuel tank. An inlet port for passing return fuel into the inside of the fuel tank is faced to the negative pressure chamber. A recirculation funnel which has an upper end opening directed to the inside of the chamber main body at a position lower than an upper edge of the chamber main body is formed to extend upward from the negative pressure chamber. A peripheral length of the upper end opening of the recirculation funnel is set longer than that of the lower edge opening of the recirculation funnel directed to the negative pressure chamber.