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. 25, 2014
Filed:
Mar. 21, 2012
Katsuhisa Yamada, Okazaki, JP;
Tetsuro Okazono, Okazaki, JP;
Hironobu Oki, Oyama, JP;
Akihiro Ishitoya, Saitama, JP;
Tomohito Ishihara, Nagoya, JP;
Katsuhisa Yamada, Okazaki, JP;
Tetsuro Okazono, Okazaki, JP;
Hironobu Oki, Oyama, JP;
Akihiro Ishitoya, Saitama, JP;
Tomohito Ishihara, Nagoya, JP;
Denso Corporation, Kariya, JP;
Kyosan Denki Co., Ltd., Koga, JP;
Abstract
A pump unit having a fuel pump and a suction filter is provided in a sub tank of a fuel tank. A filter element sheet for the suction filter is formed in a cup shape, a bottom wall portion of which faces to an inner bottom surface of the sub tank. A suction port of the fuel pump is opened to a fuel passage formed in the inside of the suction filter, so that filtered fuel is sucked into the fuel pump. Multiple mountain fold portions and multiple valley fold portions are formed on a side wall of the cup-shaped filter element sheet, to thereby increase surface area for filtering the fuel.