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:
Jul. 20, 2010

Filed:

Aug. 13, 2007
Applicants:

Yoshikazu Yamada, Saitama, JP;

Shigeru Saito, Saitama, JP;

Keiichiro Bungo, Saitama, JP;

Yasunori Matsubara, Saitama, JP;

Inventors:

Yoshikazu Yamada, Saitama, JP;

Shigeru Saito, Saitama, JP;

Keiichiro Bungo, Saitama, JP;

Yasunori Matsubara, Saitama, JP;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F02M 37/04 (2006.01); F01P 1/06 (2006.01);
U.S. Cl.
CPC ...
Abstract

A fuel supply system for a general purpose internal combustion engine is equipped with a sub-fuel tank that retains gasoline fuel supplied from a main fuel tank and houses the high-pressure pump in its interior. In other words, the pump is immersed in the gasoline fuel retained in the tank, so that if an air pocket should occur in the fuel supply pipe between the main fuel tank and pump, the air will be discharged from the sub-fuel tank to the exterior through a fuel return pipe etc., thereby ensuring that the pump does not suck in air. Since fuel injectors can therefore inject gasoline fuel immediately, starting performance is enhanced.


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