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Exhaust system implementing feedforward and feedback control

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • F01N-003/00
출원번호 UP-0081893 (2008-04-23)
등록번호 US-7832200 (2011-01-16)
발명자 / 주소
  • Kesse, Mary Lou
  • Wynkoop, Chris L.
  • Wei, Zhiyong
  • Lukich, Michael S.
  • Scrivner, Wade D.
  • Jayachandran, Amit
출원인 / 주소
  • Caterpillar Inc
대리인 / 주소
    Finnegan, Henderson, Farabow, Garrett & Dunbar LLC
인용정보 피인용 횟수 : 29  인용 특허 : 20

초록

An exhaust system for use with a combustion engine is disclosed. The exhaust system may have an exhaust passageway, and a reduction catalyst disposed within the exhaust passageway. The exhaust system may also have a first sensor located to generate a first signal indicative of an operational paramet

대표청구항

What is claimed is: 1. An exhaust system for a combustion engine, comprising: an exhaust passageway; a reduction catalyst disposed within the exhaust passageway; an injection device located to inject reductant into the exhaust passageway upstream of the reduction catalyst; a particulate filter loca

이 특허에 인용된 특허 (20)

  1. Polcer John (Brookside NJ), Catalytic denitrification control process and system for combustion flue gases.
  2. Bourn,Gary D.; Smith,Jack A.; Gingrich,Jess W., Closed loop engine control for regulating NOx emissions, using a two-dimensional fuel-air curve.
  3. Nakayama, Shigeki; Suematsu, Toshio; Fukuma, Takao; Oda, Tomihisa; Harada, Yasuo; Matsunaga, Akio; Ono, Tomoyuki; Miyake, Teruhiko; Suzuki, Yoshitsugu, Control apparatus for motor vehicle and storage medium.
  4. van Nieuwstadt,Michiel; Tennison,Paul, Control method and system for diesel particulate filter regeneration.
  5. Aratsuka,Yoshitaka; Hashimoto,Hirofumi; Nishi,Takuo, Device for purifying the exhaust gases of diesel engines.
  6. Rim Julius J. (2743 Bloomfield Crossing Bloomfield Hills MI 48210) Rim Ho (601-4 Sinsa Dong ; Kangnam-Ku Seoul KRX), Diesel engine exhaust filtration system and method.
  7. Beutel,Tilman Wolfram; Calabrese,John Lawrence, Emission control system for vehicles powered by diesel engines.
  8. Russell,John David, Engine control system and method with lean catalyst and particulate filter.
  9. Fujdala, Kyle L.; Truex, Timothy J., Engine exhaust catalysts containing palladium-gold.
  10. Nakatani, Koichiro; Hirota, Shinya; Toshioka, Shunsuke, Exhaust emission control system of internal combustion engine.
  11. Hammerle, Robert Henry; Lambert, Christine Kay; Laing, Paul M.; Tennison, Paul Joseph; Ruona, William Charles, Exhaust gas aftertreatment systems.
  12. Upadhyay,Devesh; van Nieuwstadt,Michiel J., Exhaust gas aftertreatment systems.
  13. Ueno,Shouichirou; Kawashima,Junichi; Otake,Makoto; Kondou,Terunori; Tsutsumoto,Naoya; Inoue,Takao; Koga,Toshimasa, Filter regeneration control.
  14. Hu, Haoran; Stover, Thomas R., Hybrid catalyst system for exhaust emissions reduction.
  15. Steichen,John Carl; Morris,Patricia A.; Barnes,John James, Method and apparatus for controlling a gas-emitting process and related devices.
  16. Reuter, Johannes Walter; Radhamohan, Subbaraya; Shamis, Dmitry Arie; Chimner, Christian Thomas, Optimal fuel profiles.
  17. Tarabulski Theodore J., Reducing NO.sub.x emissions from an engine while maximizing fuel economy.
  18. Jeremy D. Peter-Hoblyn GB; Eric N. Balles ; John E. Hofmann, Reducing no emissions from an engine by on-demand generation of ammonia for selective catalytic reduction.
  19. Patchett Joseph A., Staged reductant injection for improved NO.sub.x reduction.
  20. Nobuhide Kato JP; Hiroshi Kurachi JP, System for removing NOx from exhaust gases.

이 특허를 인용한 특허 (29)

  1. Jasinkiewicz, Paul, Ammonia load control for SCR catalyst prior to DPF regeneration.
  2. Chi, John N.; Hill, Joe V., Apparatus, system, and method for NOx signal correction in feedback controls of an SCR system.
  3. Chi, John N.; Wang, Weiwen; Garimella, Phanindra; Hill, Joe V., Apparatus, system, and method for controlling reductant dosing in an SCR catalyst system.
  4. Garimella, Phanindra; Osburn, Andy; Chi, John N.; Wills, Joan M., Apparatus, system, and method for estimating an NOx conversion efficiency of a selective catalytic reduction catalyst.
  5. Chi, John N.; Hill, Joe V.; Wills, Joan M.; Farrell, Lisa A.; Frazier, Timothy R.; Mohammed, Hasan, Apparatus, system, and method for reducing NOx emissions from an engine system.
  6. Chi, John N.; Wang, Weiwen; Garimella, Phanindra; Wills, Joan M.; Hill, Joe V.; Farrell, Lisa A.; Ofoli, Abdul R., Apparatus, system, and method for reducing NOx emissions on an SCR catalyst.
  7. Wills, Joan M.; Chi, John N.; Wang, Weiwen; Garimella, Phanindra; Frazier, Timothy R.; Ofoli, Abdul R.; Hill, Joe V.; Farrell, Lisa A.; Currier, Neal W.; Yezerets, Aleksey; Osburn, Andy, Apparatus, system, and method for reducing NOx emissions on an SCR catalyst.
  8. Sujan, Vivek Anand; Ofoli, Abdul R.; Korthandaraman, Govindarajan, Combined engine out NOX management.
  9. Hashida, Tatsuhiro; Nishijima, Hiroki, Control device for internal combustion engine.
  10. Geveci, Mert; Yezerets, Aleksey, Differential NH3 and NOX measurement using an exhaust gas sensor coupled with a micro SCR catalyst.
  11. Farrell, Lisa A.; Frazier, Timothy R.; Mohammed, Hasan, Engine system properties controller.
  12. Chavannavar, Praveen Shivshankar, Exhaust emission prediction system and method.
  13. Matsunaga, Hideki; Katou, Toshikazu; Kurita, Hiroyuki; Kumazawa, Shinji; Motomura, Masayuki; Yazawa, Katsunori, Exhaust emission purifying apparatus for engine.
  14. Shimode, Kazumasa; Ogiso, Makoto; Takaoka, Kazuya; Shibata, Daisuke, Exhaust gas purification apparatus for an internal combustion engine.
  15. Ettireddy, Padmanabha Reddy; Henrichsen, Matthew, Low temperature selective catalytic reduction catalyst and associated systems and methods.
  16. Ardanese, Michelangelo; Darr, Rebecca J; Ardanese, Raffaello; Jasinkiewicz, Paul; Sun, Min, Method for controlling regeneration within an after-treatment component of a compression-ignition engine.
  17. Hopka, Michael; Van Nieuwstadt, Michiel J., Method for diagnosing operation of a particulate matter sensor.
  18. Hopka, Michael; Van Nieuwstadt, Michiel J., Method for diagnosing operation of a particulate matter sensor.
  19. Fahrenkrug, Matthew F.; Hudgens, Jason W.; Crandell, Richard A., Mounting assembly for reductant injector with thermal isolation and sealing gasket.
  20. Kothandaraman, Govindarajan; Sujan, Vivek Anand; Ofoli, Abdul R.; Geveci, Mert, Mult-mode controls for engines systems including SCR aftertreatment.
  21. Nagar, Nishit; Sharma, Arunandan, On-board diagnostics for an opposed-piston engine equipped with a supercharger.
  22. Dingle, Philip J. G.; Hardy, Martin Paul; Zuelch, Roman Stefan, Reagent dosing system and method of dosing reagent.
  23. Dingle, Philip J. G.; Hardy, Martin Paul; Zuelch, Roman Stefan, Reagent dosing system and method of dosing reagent.
  24. Ofoli, Abdul R.; Mohammed, Hasan, SCR catalyst ammonia surface coverage estimation and control.
  25. Ofoli, Abdul R.; Mohammed, Hasan, SCR catalyst ammonia surface coverage estimation and control.
  26. Geveci, Mert, SCR control system utilizing a differential NH3 and NOx measurement using an exhaust gas sensor coupled with a micro SCR catalyst.
  27. Darr, Rebecca J.; Perrin, James M.; Jasinkiewicz, Paul; Mullins, Jason Daniel; Crawford, Kyle E., Selective catalytic reduction (SCR) catalyst depletion control systems and methods.
  28. Perrin, James M.; Darr, Rebecca J.; Jasinkiewicz, Paul; Mullins, Jason Daniel; Crawford, Kyle E., Selective catalytic reduction (SCR) catalyst depletion control systems and methods.
  29. Devarakonda, Maruthi Narasinga Rao, System and method for injection control of urea in selective catalyst reduction.
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