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Method and system for NOx reduction 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • F01N-003/00
출원번호 US-0615427 (2000-07-13)
발명자 / 주소
  • Lifeng Xu
  • Ching-Hsong George Wu
  • Robert Henry Hammerle
출원인 / 주소
  • Ford Global Technologies, Inc.
대리인 / 주소
    Jerome R. Drouillard
인용정보 피인용 횟수 : 59  인용 특허 : 24

초록 ▼

A system and method for controlling reductant injection upstream of a selective reduction catalyst (SCR) to overcome NOX inhibiting effects by injecting reductant in an amount proportional to engine out NOX concentration when the NOX concentration is above a predetermined level and injecting predete

대표청구항 ▼

1. A method for controlling reductant injection into an engine exhaust stream upstream of a selective reduction catalyst coupled to said engine, the method comprising the steps of:determining a NOX concentration level upstream of said catalyst; controlling the amount of reductant injected into the e

이 특허에 인용된 특허 (24)

  1. Berriman Lester P. ; Zabsky John M. ; Ward William H., Ammonia injection in NOx control.
    상세보기
  2. Lane William H. (Chillicothe IL) Peterson Randy N. (Peoria IL) Smith Aaron L. (East Peoria IL) White Scott T. (East Peoria IL) Learned Daniel J. (Peoria IL), Combustion exhaust purification system and method.
    상세보기
  3. Fulton Brien Lloyd ; Vantine Katie Jo ; Goodliff Simon, Emission control system.
    상세보기
  4. Berriman Lester P. (Irvine CA) Zabsky John M. (Santa Ana CA) Davis James W. (Rancho Mirage CA) Hylton William M. (Sacramento CA), Engine NOx reduction.
    상세보기
  5. Daudel Helmut (Schorndorf DEX) Marquardt Klaus-Jrgen (Remshalden DEX) Grtner Uwe (Weinstadt DEX), Exhaust gas aftertreatment device for internal combustion engines.
    상세보기
  6. Hirota Shinya (Susono JPX) Katoh Kenji (Shizuoka JPX), Exhaust gas purification system for an internal combustion engine.
    상세보기
  7. Hirota Shinya,JPX, Exhaust gas purifying apparatus for internal combustion engine.
    상세보기
  8. Schmelz Helmut (Prien DEX), Method and apparatus for controlled introduction of a reducing agent into a nitrogen oxide-containing exhaust gas.
    상세보기
  9. Oshima Yujiro (Aichi JPX) Abe Katsushi (Aichi JPX) Kawahara Kazuo (Aichi JPX) Yokota Koji (Aichi JPX) Muraki Hideaki (Aichi JPX) Fukui Masayuki (Aichi JPX), Method and apparatus for reducing nitrogen oxides from internal combustion engine.
    상세보기
  10. Dolling Winfried,DEX, Method and device for converting a pollutant in an exhaust gas in a catalytic converter.
    상세보기
  11. Weigl Manfred,DEX, Method and device for exhaust gas after-treatment in an internal combustion engine equipped with an SCR catalyst.
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  12. Fraenkle Gerhard,DEX ; Marquartdt Klaus-Juergen,DEX, Method and device for operating an internal combustion engine with low nitrogen oxide emissions.
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  13. Kato Nobuhide,JPX ; Kurachi Hiroshi,JPX, Method for controlling engine exhaust gas system.
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  14. Emmerling Gerhard,DEX ; Zuther Frank,DEX ; Doring Andreas,DEX, Method for metering a reducing agent into NO.sub.x -containing exhaust gas of an internal combustion engine.
    상세보기
  15. Johnson Lloyd H. (Scotia NY) Couchman Robert S. (Ballston Lake NY) Spencer ; Jr. Robert C. (Burnt Hills NY) Booth John A. (Scotia NY) Holman Russell J. (Schenectady NY), Method for operating a steam turbine with an overload valve.
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  16. Dahlheim Christian (Berlin DEX) Fleischer Maximilian (Hoehenkirchen DEX) Meixner Hans (Haar DEX), Method for reducing the nitrogen oxide concentration in the exhaust of an internal combustion engine or of a firing syst.
    상세보기
  17. Inoue Akira (Hirakata JPX), Method for removal of nitrogen oxides from exhaust gas of diesel engine.
    상세보기
  18. Strehlau Wolfgang,DEX ; Lox Egbert,DEX ; Kreuzer Thomas,DEX ; Hohne Jurgen,DEX, Method of purifying a lean exhaust gas and catalytic system therefor.
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  19. Cho Byong K. (Rochester Hills MI), Method of reducing NOx emissions from lean-burn combustion engines.
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  20. Wissler Gerhard,DEX ; Pajonk Gunther,DEX ; Hofmann Lothar,DEX ; Weigl Manfred,DEX, Method of reducing the Nox content in the exhaust gas of a diesel internal combustion engine.
    상세보기
  21. Wissler Gerhard,DEX ; Pajonk Gunther,DEX ; Hofmann Lothar,DEX ; Weigl Manfred,DEX ; Mathes Wieland,DEX ; Neufert Ronald,DEX ; Wenzlawski Klaus,DEX ; Weisensel Dietmar,DEX, NO.sub.x reduction system with a device for metering reducing agents.
    상세보기
  22. Vogtlin George E. ; Goerz David A. ; Hsiao Mark ; Merritt Bernard T. ; Penetrante Bernie M. ; Reynolds John G. ; Brusasco Ray, Nitrogen oxide removal using diesel fuel and a catalyst.
    상세보기
  23. Tarabulski Theodore J., Reducing NO.sub.x emissions from an engine while maximizing fuel economy.
    상세보기
  24. Patchett Joseph A., Staged reductant injection for improved NO.sub.x reduction.
    상세보기

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  1. Ichikawa, Ataru; Daido, Shigeki, Addition-amount controller for exhaust gas purifying agent and exhaust emission control system.
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  2. Ichikawa, Ataru; Fujita, Tatsuya, Addition-amount controller for exhaust gas purifying agent and exhaust emission control system.
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  3. Zhang, Xiaogang, Advanced exhaust-gas sampler for exhaust sensor.
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  4. Zhang, Xiaogang, Advanced exhaust-gas sampler for exhaust sensor.
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  5. Solbrig, Charles E.; Yanakiev, Ognyan N., Ammonia (NH3) storage control system and method based on a nitrogen oxide(NOx) sensor.
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  6. Montreuil,Clifford Norman; Theis,Joseph Robert, Bimodal catalyst-urea SCR system for enhanced NOconversion and durability.
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  7. Montreuil, Clifford Norman; Theis, Joseph Robert, Bimodal catalyst-urea SCR system for enhanced NOx conversion and durability.
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  8. Tanioka, Kenichi; Kurogi, Fumiyasu; Miyamoto, Takeshi, Control device and control method for exhaust gas purification apparatus, and internal combustion engine exhaust gas purification apparatus.
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  9. Song, Qingwen; Zhu, Guoming George; Tsai, Jerilyn, Control system for an engine aftertreatment system.
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  10. Weigl, Manfred, Device and method for exhaust-gas aftertreatment in an internal-combustion engine.
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  11. Toshioka, Shunsuke; Asanuma, Takamitsu, Device for purifying exhaust gas of an internal combustion engine.
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  12. Ruth, Michael J.; Cunningham, Michael J.; Wills, Joan M.; Kocher, Lyle E., Diesel oxidation catalyst filter heating system.
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  13. Irisawa, Yasuyuki; Tanaka, Hiroshi; Kako, Junichi, Emission control apparatus of internal combustion engine.
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  14. Funk,Werner; Roberts,Philip, Emission control system.
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  15. Funk,Werner; Roberts,Phillip, Emission control system.
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  16. Roberts, Phillip; Funk, Werner, Emission control system.
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  17. Liang, Cho Y.; McCoy, Steven R., Emissions control system for increasing selective catalytic reduction efficiency.
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  18. Kawatani, Toru; Onoda, Naoki; Jyoutaki, Hiroshi; Shinozaki, Ritsuko; Takahashi, Yoshinori; Takeda, Yoshinaka; Sasaki, Kenji; Kawai, Kenji; Saito, Shinichi; Takahashi, Masayuki, Engine control system.
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  19. Upadhyay,Devesh; van Nieuwstadt,Michiel J., Exhaust gas aftertreatment systems.
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  20. Itoh, Kazuhiro; Tanaka, Toshiaki; Iwasaki, Eiji; Hirota, Shinya, Exhaust gas purification device of internal combustion engine.
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  21. Itoh,Kazuhiro; Tanaka,Toshiaki; Iwasaki,Eiji; Hirota,Shinya, Exhaust gas purification device of internal combustion engine.
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  22. Itoh,Kazuhiro; Tanaka,Toshiaki; Iwasaki,Eiji; Hirota,Shinya, Exhaust gas purification device of internal combustion engine.
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  23. Itoh,Kazuhiro; Tanaka,Toshiaki; Iwasaki,Eiji; Hirota,Shinya, Exhaust gas purification device of internal combustion engine.
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  24. Yasui,Yuji; Iwamoto,Jun; Ogihara,Hidemi, Exhaust gas purifying apparatus and method for internal combustion engine, and engine control unit.
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  25. Tanai, Yutaka; Oda, Tomihisa; Itoh, Kazuhiro; Toshioka, Shunsuke; Itoh, Takekazu, Exhaust purification device of an internal combustion engine.
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  27. Sato, Masaaki; Oda, Tomihisa; Asaura, Shinya; Toshioka, Shunsuke, Exhaust purifying device for internal combustion engines.
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  28. Kesse, Mary Lou; Wei, Zhiyong; Zhu, Liangtao, Exhaust system implementing in situ calibration.
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  29. Kesse, Mary L.; Scrivner, Wade D.; Jayachandran, Amit; Zhu, Liangtao, Integrated engine and exhaust after treatment system and method of operating same.
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  30. Viola,Michael B.; Brown,David B.; Paratore,Michael J., Method and apparatus for urea injection in an exhaust aftertreatment system.
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  31. Ripper,Wolfgang; Mahr,Bernd; Wickert,Stefan, Method and device for controlling an exhaust treatment system.
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  32. Alfieri, Vincenzo; Mazzara Bologna, Giuseppe; Conte, Giuseppe; Bemporad, Alberto; Bernardini, Daniele, Method for controlling an injector for injecting a reductant into an exhaust system of an internal combustion engine.
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  33. Gabrielsson,P？r; Gekas,Ioannis; Thorhauge,Max, Method for controlling injection of reducing agent in exhaust gas from a combustion engine.
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  34. Upadhyay, Devesh; Van Nieuwstadt, Michiel J., Method for correcting an estimate of NH3 stored within a selective catalyst reduction system.
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  35. Adelman, Brad J.; Strots, Vadim; Santhanam, Shyam; Derybowski, Edward M.; Miller, Michael J., Method for injecting ammonia into an exhaust gas stream.
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  36. Ruth, Michael J.; Cunningham, Michael J., Method for modifying trigger level for adsorber regeneration.
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  37. Christner, Bernd; Paule, Markus, Method for operating an exhaust gas treatment system having an SCR catalytic converter.
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  39. Sun, Jinhui; Mupparapu, Shashank; Tarabulski, Theodore J.; Park, Paul W., Method for purging a dosing system.
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  45. Wang, Yue Yun; Geckler, Samuel C.; Chen, Jer Sheng J.; Cunningham, Michael J.; Popuri, Sriram Satya Srinivas; Ruth, Michael J., Optimized desulfation trigger control for an adsorber.
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  46. Lueders, Hartmut; Walz, Christian; Loehr, Matthias, Procedure and device to monitor an exhaust gas after-treatment system.
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  47. Mikkelsen, Svend-Erik; Gabrielsson, Per L. T., Process for the reduction of SCR NOx emissions and apparatus therefor.
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  48. Solbrig, Charles E., Reductant injection control strategy.
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  49. Ofoli, Abdul R.; Mohammed, Hasan, SCR catalyst ammonia surface coverage estimation and control.
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  50. Ofoli, Abdul R.; Mohammed, Hasan, SCR catalyst ammonia surface coverage estimation and control.
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  51. Gady, Kevin Andrew; Bedford, Joshua Clifford, Selective catalytic reduction device control methods and systems.
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  52. Mullins, Jason Daniel; Darr, Rebecca J; Crawford, Kyle E.; Jasinkiewicz, Paul, System and method for controlling reducing agent injection in a selective catalytic reduction system.
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  53. Wills, Joan M., System for controlling absorber regeneration.
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  54. Wang, Yue Yun; Popuri, Sriram Satya Srinivas; Wills, Joan M., System for controlling adsorber regeneration.
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  55. Wang, Yue Yun; Popuri, Sriram Satya Srinivas; Ruth, Michael J.; Cunningham, Michael J.; Wills, Joan M.; Chen, Jer-Sheng J.; Geckler, Samuel C., System for controlling triggering of adsorber regeneration.
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  56. Berryhill, Ross C.; White, Gregory R., System for diagnosing reagent solution quality.
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  57. Henry, Cary; Kolhouse, Steven J., Systems and methods for control of engine NOx emissions using liquid and dry reductant sources.
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  58. Henry, Cary; Kolhouse, Steven J., Systems and methods for control of engine NOx emissions using liquid and dry reductant sources.
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  59. Hsieh, Ming-Feng; Haas, Michael; Garimella, Phanindra V., Techniques for control of an SCR aftertreatment system.
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