Patent
Exhaust emission control system of internal combustion engine
Takeshi Hashizume,Satoshi Hiranuma,Kihoko Kaida,Kenji Kawai,Toru Kawatani,Shinichi Saito,Yoshinaka Takeda,Junya Watanabe +7 more
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TLDR
In this article, an exhaust emission control system of an internal combustion engine capable of post injection is described, which enables an efficient rise in the exhaust temperature while inhibiting deterioration of the drivability due to a rapid change in torque.Abstract:
An exhaust emission control system of an internal combustion engine capable of post injection is disclosed which provides control such that the injection timing in sub injection is set to a point earlier than the target injection timing when the sub injection is started, and the injection timing in the sub injection is then delayed to the target injection timing. This realizes the post injection under the optimum conditions and enables an efficient rise in the exhaust temperature while inhibiting deterioration of the drivability due to a rapid change in torque.read more
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Patent
Exhaust purification device of internal combustion engine
Kenichi Tsujimoto,Shinya Hirota +1 more
TL;DR: In this article, an internal combustion engine with an HC treatment catalyst having the function of adsorbing the HC in the exhaust gas is arranged upstream of the NOx selective reducing catalyst.
Patent
Exhaust emission control device for internal combustion engine
Yuji Yasui,Ikue Kawasumi +1 more
TL;DR: An exhaust emission control device for an internal combustion engine, capable of supplying a just enough amount of reducing agent to a selective reduction catalyst even when a NOx purification ratio of the catalyst is changed by various causes, is presented in this article.
Patent
Regeneration of particulate filter
TL;DR: In this paper, an exhaust passage (2) of a diesel engine (1) is provided with a filter (41) for trapping particulate matter and regeneration of the filter is divided into first to third phases.
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Regeneration control of diesel particulate filter
Makoto Otake,Junichi Kawashima,Naoya Tsutsumoto,Terunori Kondou,Takao Inoue,Shouichirou Ueno,Toshimasa Koga +6 more
TL;DR: In this paper, a diesel particulate filter (10) which traps particulate matter contained in the exhaust gas of a diesel engine was regenerated through fuel injection control of a fuel injector.
Patent
Exhaust emission control device
TL;DR: In this article, an exhaust emission control device which eliminates the use of a heat-retention structure using heat-insulating material such as glass wool so as to attain substantial lessening in production cost is presented.
References
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Patent
Exhaust gas purification device for an internal combustion engine
TL;DR: In this article, a converter containing a NOx absorbing and reducing catalyst is disposed in the exhaust passage of an internal combustion engine, where the upstream half portion (portion of the inlet side) of the substrate carries the oxygen storage component that absorbs oxygen in exhaust gas and releases the absorbed oxygen when the air-fuel ratio of the exhaust gas flowing in is rich.
Patent
Exhaust gas purification system for an internal combustion engine
TL;DR: In this paper, a dual passage exhaust gas purification system for an internal combustion engine includes a first passage and a second passage which are connected in parallel to each other, and a flow switching valve is provided so as to switch the flow of exhaust gas between the first and second passage.
Patent
Exhaust gas purification apparatus for an internal combustion engine
Kenji Katoh,Shinichi Takeshima,Toshiaki Tanaka,Satoshi Iguchi,Masato Goto,Tetsuro Kihara,Takamitsu Asanuma,Fumitada Murakami +7 more
TL;DR: In this paper, an NOx absorbent (6, 6A) is installed in an exhaust conduit of an internal combustion engine capable of fuel combustion at lean air-fuel ratios.
Patent
Catalyzed scr filter and emission treatment system
TL;DR: In this paper, a soot filter coated with a material effective in the Selective Catalytic Reduction (SCR) of NOx by a reductant, e.g., ammonia.
Patent
exhaust gas purification device
Shinya Hirota,Toshiaki Tanaka,Kazuhiro Itoh,Takamitsu Asanuma,Koichiro Nakatani,Koichi Kimura +5 more
TL;DR: In this paper, an exhaust gas purification device having a NOx absorbent includes a by-pass passage for bypassing the NOx absorbing material, a flow rate control portion for regulating both the flow rate of exhaust gas passing through the bypass passage and bypassing the absorbent material, and a reductant addition portion for adding REDCTant into an exhaust passage upstream of the NOX absorbent.