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:
Feb. 17, 2026
Filed:
Feb. 22, 2022
Applicant:
Komatsu Ltd., Tokyo, JP;
Inventors:
Mitsuyoshi Kimura, Tokyo, JP;
Yutaka Ono, Tokyo, JP;
Assignee:
KOMATSU LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01N 3/24 (2006.01); B01D 53/94 (2006.01); B01D 53/96 (2006.01); F01N 3/20 (2006.01);
U.S. Cl.
CPC ...
F01N 3/24 (2013.01); B01D 53/94 (2013.01); B01D 53/96 (2013.01); F01N 3/20 (2013.01); F01N 2560/06 (2013.01);
Abstract
This hydrocarbon deposition amount estimation device comprises a hydrocarbon deposition amount estimation unit that estimates the deposition amount of hydrocarbons deposited in an exhaust gas purification device of an internal combustion engine equipped with an oxidation catalyst on the basis of at least a first measured value corresponding to the intake air temperature of the internal combustion engine, a second measured value corresponding to the temperature of a cooling liquid of the internal combustion engine, and a third measured value corresponding to the exhaust gas flow rate of the internal combustion engine.