Invention Grant
- Patent Title: Exhaust purification apparatus for internal combustion engine
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Application No.: US15307618Application Date: 2015-02-12
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Publication No.: US10054027B2Publication Date: 2018-08-21
- Inventor: Tsutomu Muramoto , Nobutaka Ishii , Futoshi Nakano , Takashi Yamashita , Satoshi Kanekiyo , Kenji Hagio , Katsushi Osada , Tsugio Chinone
- Applicant: ISUZU MOTORS LIMITED
- Applicant Address: JP Tokyo
- Assignee: ISUZU MOTORS LIMITED
- Current Assignee: ISUZU MOTORS LIMITED
- Current Assignee Address: JP Tokyo
- Agency: Procopio, Cory, Hargreaves & Savitch LLP
- Priority: JP2014-038947 20140228
- International Application: PCT/JP2015/053786 WO 20150212
- International Announcement: WO2015/129463 WO 20150903
- Main IPC: F01N9/00
- IPC: F01N9/00 ; F01N3/025 ; F01N3/08 ; F01N3/10 ; B01D53/94 ; B01D46/00 ; F01N3/035 ; F01N11/00 ; F02D41/02 ; F02D41/38 ; F01N13/00

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.
Public/Granted literature
- US20170074144A1 EXHAUST PURIFICATION APPARATUS FOR INTERNAL COMBUSTION ENGINE Public/Granted day:2017-03-16
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