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:
Jul. 01, 2008
Filed:
Mar. 07, 2007
Applicant:
Tadashi Hazama, Chita-gun, JP;
Inventor:
Tadashi Hazama, Chita-gun, JP;
Assignee:
Denso Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M 37/08 (2006.01); F02M 37/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A fluid apparatus, which is provided for supplying fluid into an internal combustion engine, includes an upstream pump, which is electrically driven, having an outlet port. The fluid apparatus further includes a downstream pump, which is electrically driven, having an inlet port that is connected with the outlet port in series. The fluid apparatus further includes an open-close unit. The open-close unit communicates a fluid passage through which the upstream pump supplies fluid to the internal combustion engine when the downstream pomp stops. The open-close unit blocks the fluid passage when the downstream pomp operates.