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:
Nov. 16, 2004
Filed:
Nov. 01, 2002
Katsumi Mori, Chiryu, JP;
Denso Corporation, , JP;
Abstract
In a fuel injection pump, a casing fixed to a housing has a pump room and a filter room mostly separated from but partly communicating with the pump room. A feed pump is constituted by the pump room where a feed pump mechanism is connected to an axial end of the drive shaft. A filter element is accommodated in the filter room. A casing cover easily attachable and detachable to the casing has a fuel inlet port through which fuel is sucked to the filter room and, then, flows via the filter element into the pump room where the fuel is pressurized according to rotation of the drive shaft. Accordingly, foreign material contained in fuel is eliminated before entering the pump room. Further, fuel flow area of the fuel element is larger than that of the fuel inlet port, resulting in less pressure loss of fuel passing through the filter element even if mesh size of filter element is smaller.