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.

Date of Patent:
Jun. 28, 2005

Filed:

Aug. 10, 2004
Applicants:

Osamu Ishikawa, Tokyo, JP;

Shiro Yonezawa, Tokyo, JP;

Inventors:

Osamu Ishikawa, Tokyo, JP;

Shiro Yonezawa, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M037/00 ;
U.S. Cl.
CPC ...
Abstract

A fuel supply system for a vehicle of the present invention includes a fuel pump, a fuel pressure regulator for controlling the fuel pressure in a fuel piping, and pump control means for operating the fuel pump at a given discharge amount by controlling/stopping the operation of the fuel pump by setting a DUTY drive signal supplied to the fuel pump control device to a predetermined DUTY when the output of a pressure detector for measuring the fuel pressure in the fuel piping reaches a first set pressure, and setting the DUTY drive signal according to the required amount of fuel discharge when the output of the pressure detector reaches a second set pressure.


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