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Small/gross leak check

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G01M-003/04
출원번호 US-0385252 (1999-08-30)
발명자 / 주소
  • Dawson, Gary D.
  • Blomquist, William B.
  • Booms, Chris J.
  • Kanafani, Fadi S.
출원인 / 주소
  • DaimlerChrysler Corporation
대리인 / 주소
    Bacon, Jr., Edwin W.
인용정보 피인용 횟수 : 6  인용 특허 : 23

초록

A method is provided for detecting a small or gross leak in an evaporative emission control system of an automotive vehicle. The method includes initially purging and then sealing the evaporative emission control system. A vacuum switch coupled to the evaporative emission control system is then moni

대표청구항

A method is provided for detecting a small or gross leak in an evaporative emission control system of an automotive vehicle. The method includes initially purging and then sealing the evaporative emission control system. A vacuum switch coupled to the evaporative emission control system is then moni

이 특허에 인용된 특허 (23)

  1. Bonse Michael,DEX ; Van De Venne Gunter,DEX, Apparatus and method for periodically cleaning a charcoal canister and for periodically checking leak-tightness of a fu.
  2. Remboski Donald J. (Dearborn MI) Plee Steven L. (Brighton MI) Woznick Mark B. (Novi MI) Foley John F. (Novi MI), Apparatus and method of detecting a leak in an evaporative emissions system.
  3. Cook John E.,CAX ; Perry Paul D.,CAX, Automotive evaporative leak detection system and method.
  4. Cook John E. (Chatham CAX), Diagnostic system for canister purge system.
  5. Giacomazzi Roy A. (Rochester Hills MI) Rich Gregory E. (Richmond MI) Przeklas Chester W. (Mt. Clements MI) Turner Kenneth W. (Webster NY), Evaporative emission control system with vent valve.
  6. Gross Rainer P. (Union Lake MI), Evaporative emission system diagnostic.
  7. Lipinski Daniel J. (Livonia MI) Marshall Charles E. (Novi MI) Prior Ernest C. (Woodhaven MI), Evaporative purge monitoring strategy and system.
  8. Dawson Gary D., Evaporative system leak detection for an evaporative emission control system.
  9. Dawson Gary D. (Rochester MI) Blomquist William B. (Clarkston MI), Leak detection assembly.
  10. Dawson Gary D. (Rochester MI) Blomquist William B. (Clarkston MI) Cook John (Chatham CAX) Busato Murray (Chatham CAX), Leak detection assembly.
  11. Huls Thomas Allan, Method and system for estimating fuel vapor pressure.
  12. Curran Patrick J. (Farmington Hills MI) McCoy Juliette J. (South Lyon MI) Panganis Michael A. (Plymouth MI) Waskiewicz David C. (Novi MI) Schwager Bryce A. (Ypsilanti MI) Rychlick Edward G. (Dearborn, Method and system for monitoring an evaporative purge system.
  13. Drschmidt Ferry (Friolzheim DEX) Strauss Wolfgang (Denkendorf DEX), Method for detecting leaks in a motor vehicle tank ventilation system.
  14. Pfleger Hartmut (Braunschweig DEX) Wier Manfred (Wenzenbach DEX) Bayerle Klaus (Regensburg DEX), Method for monitoring the functional capability of a tank venting system for a motor vehicle.
  15. Williams David (Warwickshire GB2) Briscoe Stuart M. (Wolverhampton GB2) Melbourne Keith (Perth AUX), Method of and apparatus for detecting fuel system leak.
  16. Blomquist William B. (Clarkston MI) Dawson Gary D. (Rochester MI) Richardson Roland T. (Detroit MI) Tallarek Glen (Grosse Pointe Woods MI), Method of checking for purge flow in an evaporative emission control system.
  17. Bayerle Klaus,DEX ; Henn Michael,DEX ; Zhang Hong,DEX, Method of checking the operational functionality of a tank venting system for a motor vehicle.
  18. Blomquist William B. (Clarkston MI) Dawson Gary D. (Rochester MI) Richardson Roland T. (Detroit MI) Tallarek Glen (Grosse Pointe Woods MI), Method of de-pressurizing an evaporative emission control system.
  19. Blomquist William B. ; Dawson Gary D. ; Richardson Roland T. ; Tallarek Glen ; Letcher John E. ; Hope Mark E., Method of leak detection during low engine vacuum for an evaporative emission control system.
  20. Blomquist William B. (Clarkston MI) Dawson Gary D. (Rochester MI) Richardson Roland T. (Detroit MI) Tallarek Glen (Grosse Pointe Woods MI) Letcher John E. (Glendale AZ) Hope Mark E. (Ann Arbor MI), Method of leak detection for an evaporative emission control system.
  21. Blomquist William B. (Clarkston MI) Dawson Gary D. (Rochester MI) Richardson Roland T. (Detroit MI) Tallarek Glen (Grosse Pointe Woods MI), Method of pinched line detection for an evaporative emission control system.
  22. Blomquist William B. (Clarkston MI) Dawson Gary D. (Rochester MI) Richardson Roland T. (Detroit MI) Tallarek Glen (Grosse Pointe Woods MI) Letcher John E. (Glendale AZ) Hope Mark E. (Ann Arbor MI), Method of testing an evaporative emission control system.
  23. Reddy Sam R. (Bloomfield MI), System and method for detecting leaks in a vapor handling system.

이 특허를 인용한 특허 (6)

  1. Bolt, Louis Scott; Dew, Michael, Evaporative emission system test apparatus and method of testing an evaporative emission system.
  2. Gearhart, Raymond D.; Bolt, Louis Scott; Bhargava, Sumit, Evaporative emissions leak tester and leak test method.
  3. Streib,Martin, Method and device for energy-saving leak testing of a fuel tank system, in particular of a motor vehicle.
  4. Grunwald, Oliver; Prinz, Oliver, Method for inspecting a tank ventilation device, control device, and internal combustion engine.
  5. King, Kegan Y.; Watson, James S., Pressure tank fault detector and method.
  6. Dudar, Aed M., Systems and methods for evaporative emissions testing.
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