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. 09, 2010
Filed:
Apr. 23, 2009
Hideki Narisako, Kariya, JP;
Yukihiro Shinohara, Kariya, JP;
Takashi Kikutani, Ama-gun, JP;
Toshiyuki Yonemoto, Nagoya, JP;
Hideki Narisako, Kariya, JP;
Yukihiro Shinohara, Kariya, JP;
Takashi Kikutani, Ama-gun, JP;
Toshiyuki Yonemoto, Nagoya, JP;
Denso Corporation, Kariya, JP;
Abstract
An ECU reduces a fuel flow rate discharged from an electric pump to the filter when a fuel temperature and a fuel pressure in the filter detected by a sensor portion drop. Since a mechanical pump continues to be driven without respect to the fuel quantity discharged from the electric pumps when the fuel flow rate discharged from the electric pump is decreased, a suction pressure is generated at an inlet of the filter. The fuel in a recirculation passage is introduced into the filter through a branch passage. As the result, relatively high temperature fuel is introduced into the filter to melt a solidified fuel causing a clogging of the filter.