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:
Aug. 26, 2008
Filed:
Jun. 15, 2007
Hisao Ogawa, Kanagawa-ken, JP;
Hisao Ogawa, Kanagawa-ken, JP;
Mitsubishi Heavy Industries, Ltd., Kanagawa-ken, JP;
Abstract
A fuel injection apparatus having a plurality of high pressure fuel injection pumps for supplying fuel to a common rail, of which amounts of fuel discharge can be controlled by a fuel supply amount adjusting device of simple and reliable construction. The fuel supply amount adjusting device is provided to fuel feed passages for feeding fuel to the plunger rooms. The adjusting device includes a spool valve device for varying opening area of each of passages for introducing fuel into each of the plunger rooms by sliding a spool fitted slidably in a spool valve case, a spool drive device for sliding the spool, and a controller for controlling the spool drive device so that the spool is slid to a position at which the opening area coincide with area required depending on engine operating conditions.