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. 11, 2017
Filed:
Sep. 13, 2012
Mitsuru Nakashima, Oyama, JP;
Tadashi Iijima, Yuuki, JP;
Kaoru Sakurai, Oyama, JP;
Kouichi Okaya, Oyama, JP;
Takashi Sakasai, Kasukabe, JP;
Mitsuru Nakashima, Oyama, JP;
Tadashi Iijima, Yuuki, JP;
Kaoru Sakurai, Oyama, JP;
Kouichi Okaya, Oyama, JP;
Takashi Sakasai, Kasukabe, JP;
Komatsu Ltd., Tokyo, JP;
Abstract
A diesel engine, includes: an exhaust gas recirculation device that recirculates an exhaust gas emitted from the diesel engine to an intake side of the diesel engine; an intake air amount sensor that measures an intake air amount of the diesel engine; a NOx measurement sensor that measures NOx contained in the exhaust gas emitted from the diesel engine; and a control device that obtains a correction value for correcting a measured value by the intake air amount sensor based on a difference between first information on NOx obtained based on information on a rotation speed of the diesel engine and information on a load and second information on NOx measured by the NOx measurement sensor to control the exhaust gas recirculation device based on the measured value by the intake air amount sensor corrected using the correction value.