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. 21, 2018
Filed:
Feb. 12, 2015
Isuzu Motors Limited, Tokyo, JP;
Tsutomu Muramoto, Fujisawa, JP;
Nobutaka Ishii, Fujisawa, JP;
Futoshi Nakano, Fujisawa, JP;
Takashi Yamashita, Fujisawa, JP;
Satoshi Kanekiyo, Fujisawa, JP;
Kenji Hagio, Fujisawa, JP;
Katsushi Osada, Fujisawa, JP;
Tsugio Chinone, Fujisawa, JP;
ISUZU MOTORS LIMITED, Tokyo, JP;
Abstract
There is provided an exhaust purification apparatus for an internal combustion engine in which a catalyst capable of adsorbing and oxidizing hydrocarbon is provided in an exhaust pipe, the exhaust purification apparatus including temperature detection means for detecting a temperature of the catalyst, estimation means for accumulating a time during which the temperature of the catalyst detected by the temperature detection means is equal to or less than a predetermined temperature, and estimating an amount of hydrocarbon adsorbed on the catalyst from the accumulated time, and control means for controlling fuel ejection of the internal combustion engine in a first ejection mode in which the temperature of the catalyst is increased to a temperature where hydrocarbons adsorbed on the catalyst are oxidized, in a case in which the amount of hydrocarbons estimated by the estimation means exceeds a predetermined upper limit.