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:
Jan. 04, 2000
Filed:
Oct. 30, 1997
Kiyotoshi Oi, Toyohashi, JP;
Masashi Miyamoto, Nishio, JP;
Denso Corporation, , JP;
Abstract
A fuel pump of returnless type fuel supply system for a vehicle includes a pump case, an impeller disposed in the pump case and a pump passage connected between the fuel inlet port and fuel discharge port. The pump passage is composed of a guiding passage section connected to the fuel inlet and pressure section connected between the guiding section and the fuel discharge port, and the guiding section has a first vapor discharge port disposed near the fuel inlet port and a second vapor discharge port disposed near the pressure passage section. Thus, fuel vapor is discharged from the first and second vapor discharge ports along with a small amount of the fuel returning to the fuel tank.