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Method and device for exhaust gas after-treatment in an internal combustion engine equipped with an SCR catalyst

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • F01N-003/00
출원번호 US-0302660 (1999-04-30)
우선권정보 DE9819579 (1998-04-30)
발명자 / 주소
  • Weigl Manfred,DEX
출원인 / 주소
  • Siemens Akteingesellschaft, DEX
대리인 / 주소
    Lerner
인용정보 피인용 횟수 : 64  인용 특허 : 6

초록

An internal combustion engine operated with excess air has an exhaust gas after-treatment device wherein nitrogen oxides in the exhaust gas are reduced by selective catalytic reduction. A pump is connected between a reducing agent container and a metering device for controlled feeding of a reducing

대표청구항

[I claim:] [1.]pumping a liquid reducing agent from a reducing agent container into a pressure accumulator;delivering, during specific operating states of an internal combustion engine, quantities of the reducing agent to an exhaust gas of the internal combustion engine upstream of an SCR catalyst,

이 특허에 인용된 특허 (6)

  1. Rembold Helmut (Stuttgart DEX) Dettling Hubert (Waiblingen DEX) Stutzenberger Heinz (Vaihingen DEX), Arrangement for treatment of exhaust gases for a compression-ignition internal combustion engine.
  2. Arora Amit ; Bivens Ward L. ; Krahn Darren L. ; Peterson Randy N., Leak detection method and apparatus for an exhaust purification system.
  3. Liberty Ross H., Method and apparatus for improved control of exhaust gas temperature from a two-stroke engine.
  4. Fraenkle Gerhard,DEX ; Marquartdt Klaus-Juergen,DEX, Method and device for operating an internal combustion engine with low nitrogen oxide emissions.
  5. Brenner Frank,DEX ; Weber Georg,DEX, Mixture delivery device for internal combustion engines.
  6. Boegner Walter (Remseck DEX) Kraemer Michael (Notzingen DEX) Krutzsch Bernd (Denkendorf DEX) Wenninger Guenter (Stuttgart DEX) Wirbeleit Friedrich (Esslingen DEX) Weisweiler Werner (Remchingen DEX), Process and apparatus for selective catalyzed no-reduction in oxygen-containing exhaust gases.

이 특허를 인용한 특허 (64)

  1. Ichikawa, Ataru; Daido, Shigeki, Addition-amount controller for exhaust gas purifying agent and exhaust emission control system.
  2. Ichikawa, Ataru; Fujita, Tatsuya, Addition-amount controller for exhaust gas purifying agent and exhaust emission control system.
  3. Brück, Rolf; Hodgson, Jan, Apparatus for delivering a reducing agent and method for producing a motor vehicle.
  4. Carroll, III, John T.; Tikk, Laszlo D., Apparatus, system, and method for diverting fluid.
  5. Carroll, III, John T.; Tikk, Laszlo D., Apparatus, system, and method for diverting fluid.
  6. Carroll, III,John T.; Tikk,Laszlo D., Apparatus, system, and method for intermittently delivering fluid.
  7. Gresens, Bradley Dane, Approach for detecting reductant availability and make-up.
  8. Zapf, Friedrich; Pelz, Thorsten; Stegmann, Heico, Calibrated dosing unit, especially of an exhaust gas treatment unit.
  9. Geveci, Mert; Yezerets, Aleksey; Currier, Neal W.; Haas, Michael; Osburn, Andrew W., Control system for doser compensation in an SCR system.
  10. Schaller, Johannes; Weber, Georg; Harndorf, Horst, Device and method for aftertreating exhaust gases.
  11. Tost, Rainer, Device and method for denoxing exhaust gas from an internal combustion engine.
  12. Binder, Klaus; Ebel, Peter; Fraenkle, Gerhard; Funk, Alexander; Marquardt, Klaus-Juergen; Schaefer, Ansgar; Huthwohl, Georg; Maurer, Bernd, Device for exhaust-gas purification, and an operating and monitoring for said device.
  13. Upadhyay, Devesh; van Nieuwstadt, Michiel J.; Ruona, William Charles, Diesel aftertreatment system.
  14. Upadhyay, Devesh; Goebelbecker, Michael; van Nieuwstadt, Michiel J.; Ruona, William Charles, Diesel aftertreatment systems.
  15. van Nieuwstadt, Michiel J.; Upadhyay, Devesh; Goebelbecker, Michael; Ruona, William Charles, Diesel aftertreatment systems.
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  17. Plougmann,Jan, Dosing pump assembly.
  18. Landes, Ewgenij; Boehland, Peter, Dosing system for a liquid reducing agent.
  19. Matsuoka, Hiroki; Matsushita, Souichi; Tsukasaki, Yukihiro; Hayashi, Kotaro; Ishiyama, Shinobu; Ohtsubo, Yasuhiro; Magarida, Naofumi; Kobayashi, Masaaki; Shibata, Daisuke; Negami, Akihiro; Oda, Tomih, Exhaust emission control device of internal combustion engine.
  20. Zapf, Friedrich; Pelz, Thorsten; Stegmann, Heico, Exhaust gas aftertreatment system and method.
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  22. Montreuil, Clifford Norman; van Nieuwstadt, Michiel J.; Tennison, Paul J., Exhaust gas aftertreatment systems.
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  24. Upadhyay,Devesh; van Nieuwstadt,Michiel J., Exhaust gas aftertreatment systems.
  25. van Nieuwstadt,Michiel J.; Upadhyay,Devesh, Exhaust gas aftertreatment systems.
  26. van Nieuwstadt,Michiel J.; Upadhyay,Devesh, Exhaust gas aftertreatment systems.
  27. Zapf, Friedrich; Stegmann, Heico; Lannig, Andreas; Lang, Klaus; Schmidt, Christian; Branco, Alexandre, Exhaust-gas aftertreatment device.
  28. Nagaoka, Daiji; Nakada, Teruo; Korenaga, Tomohiro, Exhaust-pipe injection system.
  29. Butzke, Gary, Fluid injection control system.
  30. Allen, Jeffrey, Fuel injection system for an internal combustion engine.
  31. Allen, Jeffrey, Fuel injection system for an internal combustion engine.
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  33. Allen, Jeffrey; Ravenhill, Paul Bartholomew; Barraclough, Steven, Injection system for an internal combustion engine.
  34. Allen,Jeffrey, Internal combustion engine having a fuel injection system.
  35. Stritzelberger,Michael, Leakage monitoring in the hydraulic pressure area of a membrane pump.
  36. Kassel, Armin; Kolm, Michael; Overhoff, Werner, Metering system.
  37. Huber, Sven; Mayer, Hanspeter; Mueller, Gerhard; Offenhuber, Michael, Method and apparatus for metering a reducing agent for removing nitrogen oxides from exhaust gases.
  38. Kellner, Andreas, Method and control unit for metering fuel into an exhaust gas duct.
  39. Strauss, Steffen; Poertner, Nikolas, Method and device for operating a motor vehicle.
  40. Lifeng Xu ; Ching-Hsong George Wu ; Robert Henry Hammerle, Method and system for NOx reduction.
  41. Upadhyay, Devesh; Yoo, In Kwang; Van Nieuwstadt, Michiel J.; Kubinski, David John, Method and system for NOx sensor degradation.
  42. Upadhyay, Devesh; Yoo, In Kwang; Kubinski, David John; Visser, Jacobus Hendrik; Meyer, Garth Michael; Van Nieuwstadt, Michiel J., Method and system for reductant injector degradation.
  43. Audouin, Arnaud, Method for determining the quantity of reducing agent in a tank.
  44. Audouin, Arnaud, Method for determining the quantity of reducing agent in a tank.
  45. Brueck, Rolf; Hodgson, Jan; Schepers, Sven; Bauer, Peter, Method for operating a metering apparatus, metering apparatus and motor vehicle having a metering apparatus.
  46. Gerlach, Michael, Method for operating a metering valve and device for performing the method.
  47. Vieth, Siegfried, Motor vehicle having a system for feeding fluid into another medium, particularly for feeding a reducing agent into the exhaust gas of an internal combustion engine.
  48. Radhamohan,Subbaraya; Crane,Michael Eugene, Multistage reductant injection strategy for slipless, high efficiency selective catalytic reduction.
  49. Karlsson, Niclas; Czasch, Martin; Wonnemann, Lars; Lorenz, Thomas, Procedure for checking the functionality of a metering valve of a NOx-reduction system of a combustion engine.
  50. Reinhold, Jens; Chaineux, Marc, Procedure for operating a metering valve and device for implementing the procedure.
  51. Mikkelsen, Svend-Erik; Gabrielsson, Per L. T., Process for the reduction of SCR NOx emissions and apparatus therefor.
  52. Hodgson, Jan; Schepers, Sven, Reducing agent delivery device with compensation element, method for compensating freezing of a reducing agent in a delivery device and motor vehicle having a delivery device.
  53. Overhoff, Werner; Dolenec, Sascha; Muhlenbrock, Sebastian, Reducing agent injection nozzle.
  54. Chandrapati, Srivardhan; Chai, Yongquan; Holl, Stephen M.; Zhang, Shu, Reductant dosing control systems and methods.
  55. Garcia-Lorenzana, Ignacio; Op De Beeck, Joel; Leonard, Stephane; Potier, Vincent; Gouriet, Jean-Baptiste; Jannot, Frédéric, Rotary pump for a vehicle.
  56. Branco, Alexandre; Stegmann, Heico; Zapf, Friedrich, SCR exhaust gas aftertreatment device.
  57. Fuchs, Tobias; Lannig, Andreas; Rohrmueller, Ralf; Weidner, Sebastian; Zapf, Friedrich, SCR exhaust gas aftertreatment device.
  58. Inagaki, Hiroshi; Patrick, Ronald S., Sensor control device.
  59. Raeymaeckers, Ottmar; Geijer Lundin, Erik; Larsson, Anders, System comprising a pump, an injector and a regulator, with control signals to the pump which are based on calculated hose rigidities.
  60. Wills,J. Stephen; Andrews,Eric B., System for diagnosing reagent solution quality and emissions catalyst degradation.
  61. Myer, Andrew; Ponnathpur, Chetan; Heichelbech, John; Muntean, George; Holl, Stephen; Burke, James F.; Anthis, John; Chakrabarti, Joydeep; Simmons, Brandon; Schmidt, Niklas; Birari, Yogesh V., Urea injection systems valves.
  62. Myer, Andrew; Ponnathpur, Chetan; Heichelbech, John; Muntean, George; Holl, Stephen; Burke, James F.; Anthis, John; Chakrabarti, Joydeep; Simmons, Brandon; Schmidt, Niklas; Birari, Yogesh V., Urea injection systems valves.
  63. Muntean, George; Pawar, Nachiket; Inala, Kundana; Holl, Steve; Apewokin, Stephanie; Gosselin, Cynthia; Myer, Andrew; Burke, Jim F.; Heichelbech, John, Urea solution pumps having leakage bypass.
  64. Allgeier,Thorsten; Faye,Ian; Gottwick,Ulrich; Graehn,Jan Michael, Vehicle with a supply unit.
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