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Active sound attenation system for engine exhaust systems and the like 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • F01N-001/06
출원번호 US-0435499 (1989-11-07)
발명자 / 주소
  • Ziegler Eldon W. (Columbia MD) Gardner John W. (Silver Springs MD)
출원인 / 주소
  • Noise Cancellation Technologies, Inc. (Columbia MD 02)
인용정보 피인용 횟수 : 39  인용 특허 : 0

초록

An active sound attenation system for combustion engine exhaust systems and the like is disclosed. To protect the counter-noise acoustic wave generator from the environment of the medium propagating the undesirable noise, an acoustically tuned anti-noise chamber is interposed between the wave genera

대표청구항

An active noise suppression system for exhaust of a combustion engine comprising: an exhaust transfer pipe, coupled to the combustion engine and having first and second ends, for transferring exhaust gas in a first direction from the combustion engine to ambient atmosphere, said first end receiving

이 특허를 인용한 특허 (39)

  1. Drzewiecki Tadeusz M. (Rockville MD) Niemczuk John B. (Kensington MD) Fuller Christopher R. (Norfolk VA) Thomas Russell H. (Hampton VA) Burdisso Ricardo A. (Blacksburg VA), Acousto-fluidic driver for active control of turbofan engine noise.
  2. Gossman William E., Active acoustical controlled enclosure.
  3. Hersh Alan S. ; Walker Bruce E. ; Heidelberg Larry, Active control source cancellation and active control Helmholtz resonator absorption of axial fan rotor-stator interaction noise.
  4. Keck, Mathias; Romzek, Martin, Active design of exhaust sounds.
  5. Kr체ger,Jan; Castor,Frank, Active exhaust muffler.
  6. Bremigan Cary D. (Madison WI) Cheng C. Raymond (Madison WI), Active exhaust silencer.
  7. Ver Istvan L., Active muffler.
  8. Krueger, Jan; Castor, Frank, Active muffler for an exhaust system.
  9. Daly, Paul D.; Astorino, John F.; Cook, Jr., Charles R., Active noise cancellation arrangement with heat dissipation.
  10. Lehringer Frank Juergen (Wernsdorf DEX), Active sound damper.
  11. Langley Andrew J. (Welwyn GB3), Actively sound reduced muffler having a venturi effect configuration.
  12. Rodrigues, Terence; Mutnury, Bhyrav Murthy; Cases, Moises; Wilke, Bruce J., Airflow optimization and noise reduction in computer systems.
  13. Busse, Stefan; Heuwinkel, Claus; Enghardt, Lars; Röhle, Ingo, Apparatus and method for improving the damping of acoustic waves.
  14. McNelis, Niall B.; Beach, Rodney; Waltemyer, Bradley; Cardone, Ryan, Attenuating engine noise using a reverse resonator.
  15. Kirk W. Reimers ; Dammika Weeratunga, Electric riding mower with motor generator set and noise abatement.
  16. Reimers, Kirk W.; Weeratunga, Dammika, Electric riding mower with motor generator set and noise abatement.
  17. Reimers, Kirk W; Weeratunga, Dammika, Electric riding mower with motor generator set and noise abatement.
  18. Lyon, Geoff; Jam, Mehrban; Robinson, Ian N, Electronic device having active noise control with an external sensor.
  19. Tanaka Katsuyuki (Nishio JPX) Nishio Yoshitaka (Nagoya JPX) Kohama Tokio (Nishio JPX) Kameyama Satoshi (Chiryu JPX) Ohara Kouzi (Aichi-ken JPX) Kato Masanori (Seto JPX), Engine noise control apparatus.
  20. Silverberg Michael H. ; Zuniga Michael Anthony, Feedback method of noise control having multiple inputs and outputs.
  21. Derby, V,Harry L.; Holby,Bryan E., Internal combustion engine traction drive with electric cutting unit drive for walking greens mower.
  22. Massini, Pietro; Caimmi, Massimiliano; Violi, Francesco; Vizzaccaro, Marco, Low-noise fume extractor hood.
  23. Fuesser, Rolf; Pricken, Franc; Schirmacher, Rolf, Method and apparatus for actively influencing the intake noise of an internal combustion engine.
  24. French,F. William, Method and system for attenuating noise from a cabinet housing computer equipment.
  25. Carlson,Martin; Wilson,Kenny, Modular power source for riding mower.
  26. Andrea Douglas ; Topf Martin, Noise cancellation apparatus.
  27. Godbold, Clement Vanden, Noise reduction for an internal combustion engine.
  28. Hölsch, Ralf; Pommerer, Michael, Overload protection for an actuator of a system for controlling sound propagating through an exhaust system.
  29. Schumacher, Uwe; Luecking, Christof; Nicolai, Manfred, Overload protection for loudspeakers in exhaust systems.
  30. Castelli, Vitorrio; Franz, Martin, Reducing noise generated by a motorized device.
  31. Sato Masaru,JPX, Sound apparatus.
  32. Wirth, Georg; Hölsch, Ralf; Sauter, Frank, Sound generator for an exhaust system.
  33. Derby, V., Harry L.; Carlson, Martin M.; Bryant, Christian Stanton Carver; Wilson, Kenneth R.; Chartrand, Scott, Steering operated by linear electric device.
  34. Marash, Joseph; Berdugo, Baruch, Super directional beamforming design and implementation.
  35. Joseph Marash IL; Baruch Berdugo IL, System, method and apparatus for cancelling noise.
  36. Polakowski, Stephen E.; Mattson, Steven G.; Kangas, Greg A.; Bustos, Zach R., Systems and methods for active exhaust noise cancellation.
  37. O'Connor, Sean C.; Merriweather, Gregory; Derby, V, Harry L.; Carlson, Martin M.; Wilson, Kenneth R., Turf maintenance vehicle all-wheel drive system.
  38. Petley, Dean; Fletcher, Simon, Vehicle noise suppression method.
  39. Chang, Cheng-Yuan; Kuo, Sen-Maw, Waste air exhausting device having functionality to abate noise and modulate noise frequency.
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