Patent
Compression ignition type engine
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TLDR
In this paper, a compression ignition type engine, where a first combustion where the amount of the recirculated exhaust gas supplied to the combustion chamber is larger than the amount consumed by the second combustion is switched to the first combustion when the temperature of the catalyst arranged in an engine exhaust passage is about to fall below the activation temperature was investigated.Abstract:
A compression ignition type engine, wherein a first combustion where the amount of the recirculated exhaust gas supplied to the combustion chamber is larger than the amount of recirculated exhaust gas where the amount of production of soot peaks and almost no soot is produced and a second combustion where the amount of recirculated exhaust gas supplied to the combustion chamber is smaller than the amount of recirculated exhaust gas where the amount of production of soot peaks are selectively switched between and where the second combustion is switched to the first combustion when the temperature of the catalyst arranged in an engine exhaust passage is about to fall below the activation temperature.read more
Citations
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Premixed charge compression ignition engine with optimal combustion control
Axel O. zur Loye,Omowoleola C. Columbus Akinyemi,Russ P. Durrett,Patrick F. Flynn,Gary L. Hunter,Greg A. Moore,Jackie M. Mudd,George G. Muntean,Julie A. Wagner,John F. Wright +9 more
TL;DR: In this paper, a premixed charge compression ignition engine, and a control system, is provided which effectively initiates combustion by compression ignition and maintains stable combustion while achieving extremely low nitrous oxide emissions, good overall efficiency and acceptable combustion noise and cylinder pressures.
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References
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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.
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Air-fuel ratio control system for internal combustion engines
Ken Ogawa,Yasunori Ehara +1 more
TL;DR: An air-fuel ratio control system for an internal combustion engine includes a LAF sensor and an O2 sensor arranged in an exhaust pipe at respective locations upstream and downstream of a catalytic converter.
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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.
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Apparatus and method for internal combustion engine control
Kazuo Koga,Kojiro Okada,Yoshiaki Danno,Kazuhide Togai,Osamu Hirako,Shogo Ohmori,Daisuke Sanbayashi,Yoshiaki Kodama +7 more
TL;DR: In this article, the adsorption state of nitrogen oxide adsorbed by the catalytic device is estimated by an electronic control unit during the lean-combustion driving of the engine.
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An exhaust gas purification device for an internal combustion engine
TL;DR: In this article, the authors provided an exhaust gas purification device for an engine having an exhaust passage, the device comprising a catalyst arranged in the exhaust passage and having an upstream end and a downstream end, a purification ratio of exhaust gas by the catalyst becoming more than a predetermined ratio when a temperature of the catalyst is within a predetermined temperature range.