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:
May. 19, 2009
Filed:
Aug. 11, 2005
Yasuyuki Onodera, Oyama, JP;
Yasuyuki Onodera, Oyama, JP;
Komatsu Ltd., Tokyo, JP;
Abstract
In an open/close control deviceinstalled in a diesel engine, when a rotational speed N of the diesel engineis equal to or higher than an intermediate rotational speed and a fuel injection amount is equal to or less than an idling injection amount Fi, a control portionof a valve opening and closing controlling meansdetermines that the diesel engine is in such a state that engine brake is to be actuated, and controls to close both a bypass valveand an EGR valve. Accordingly, since there is no fear that exhaust gas returns from an inlet line side of an exhaust turbineto an outlet line side of a compressor, the engine brake can be effectively actuated during running at high speeds and running on a downward slope.