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. 31, 2007
Filed:
Jan. 17, 2006
Akira Shibata, Anjo, JP;
Akira Shibata, Anjo, JP;
Denso Corporation, Kariya, Aichi-pref, JP;
Abstract
A first fuel discharge path and a first return pipe that collectively discharge the amount of flow of fuel flowing out of the piston control chamber of a pressure intensifier built in an injector and the amount of flow of fuel flowing out of the nozzle back pressure chamber of a fuel injection nozzle (including the amount of flow of leak fuel) to a fuel tank and a second fuel discharge path and a second return pipe that discharge only the amount of flow of return fuel flowing out of the solenoid valve chamber of a solenoid valve are mounted separately from and independently of each other in terms of pipe line. With this measure, pressure in the solenoid valve chamber can be controlled to a value lower than the limit of resistance to pressure of an O-ring.