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"" 따옴표 내의 구문과 완전히 일치하는 문서만 검색 예) "Transform and Quantization"

특허 상세정보

Mufflers with enhanced acoustic performance at low and moderate frequencies

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F01N-001/02    F01N-001/24    F01N-001/04    F01N-001/08   
미국특허분류(USC) 181/250; 181/252; 181/256; 181/266; 181/273; 181/276
출원번호 US-0836777 (2004-04-30)
등록번호 US-7281605 (2007-10-16)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 6  인용 특허 : 31
초록

The invention relates to an exhaust silencer or muffler for an internal combustion engine, in particular a silencer with the damping characteristics of a resonator with the absorptive characteristics of a dissipative silencer. The silencer of the present invention provides an improved silencer or muffler for use with an internal combustion engine that incorporates both a dissipative silencer and a resonator in a single muffler assembly suitable for use with standard automotive construction techniques.

대표
청구항

We claim: 1. A silencer for an internal combustion engine comprising: an outer shell having a body and first and second ends; an exhaust duct carrying exhaust gasses through said body; a dissipative silencer positioned within said body and surrounding said exhaust duct; a Helmholtz resonator comprising a chamber and a throat positioned within said body, wherein said exhaust duct is a perforated exhaust duct and at least one perforation is acoustically coupled to said resonator throat, said throat of said Helmholtz resonator running substantially the len...

이 특허에 인용된 특허 (31)

  1. Hetherington Theodore W. (Jackson MI). Acoustic muffler. USP1989074846302.
  2. Bokor Ken,CAX. Blower noise silencer. USP2000076089348.
  3. Sager ; Jr. Robert L. (Grass Lake MI) Kraai Leon A. (Jackson MI). Broad band low frequency passive muffler. USP1994095350888.
  4. Huff, Norman T.; Schweizer, Robert A.; Sanders, Andrew M.. Bumper/muffler assembly. USP2003126668972.
  5. Ingemansson Bengt-Erik (Olofstrm SEX) Bjrk Bertil E. (Falkenberg SEX) Hedman Jan E. (Falkenberg SEX) Knutsson Knut G. (Simlngsdalen SEX) Larsson Nils H. I. (Falkenberg SEX). Container through which a gas flows, preferably a muffler, with fiberglass filling and method and apparatus for filling. USP1986024569471.
  6. Jones Mack L.. Cross flow path exhaust muffler. USP1998065773770.
  7. Nilsson Bengt G.,SEX ; Svensson Lennart O.,SEX. Device and process for expanding strand material. USP1999115976453.
  8. Borla Alexander (5190 E. Kings Grove Dr. Somis CA 93066). Exhaust muffler for internal combustion engines. USP1993035198625.
  9. Shaikh Nisar (Fond du Lac WI). Exhaust silencer apparatus for internal combustion engine. USP1977094046219.
  10. Kraai Leon A. (Jackson MI) Sager ; Jr. Robert L. (Grass Lake MI) Hill William E. (Ann Arbor MI). Low backpressure straight-through reactive and dissipative muffler. USP1994115365025.
  11. Jones Adrian D. (944-956 South Rd. Edwardstown AUX). Low frequency muffler. USP1985024501341.
  12. Knutsson Goran K.,SEX ; Nilsson Bengt G.,SEX ; Svensson Lennart,SEX. Method and apparatus for making preforms from glass fiber strand material. USP1998065766541.
  13. Kwang Hyup An KR; Hwan Joo Myung KR; In Seop Lee KR. Muffler. USP2002076415888.
  14. Feuling James J. (4035 N. Ventura Ave. Ventura CA 93001). Muffler for an internal combustion engine. USP1989054834214.
  15. Kaneso Hiroto (Hachiouji JPX). Muffler for an internal combustion engine. USP1997025602368.
  16. Watanabe Junichi (Kobe JPX) Aoyama Takahiko (Akashi JPX) Gotoh Norio (Gifu JPX). Muffler for engine, particularly motorcycle engine. USP1981074278147.
  17. Tanaka Hideharu (Hyogo JPX) Sekiya Mutsuo (Hyogo JPX) Uchikawa Fusaoki (Kanagawa JPX). Muffler for exhaust gas from an internal combustion engine. USP1985064523662.
  18. Tanaka Hideharu (Hyogo JPX) Sekiya Mutsuo (Hyogo JPX) Uchikawa Fusaoki (Hyogo JPX). Muffler for exhaust gas from internal combustion engine. USP1987104700805.
  19. Shimoji Koji (Okazaki JPX) Hangeisi Suekiti (Toyota JPX) Itou Keiji (Okazaki JPX). Muffler for internal combustion engines. USP1985044513841.
  20. D'Amico ; Jr. John ; Newman Jeffrey M. ; Rigney Brett A.. Muffler packing method and apparatus. USP2000056068082.
  21. Brandt, Luc J. L.; Charlier, Leon. Muffler shell filling process and muffler filled with fibrous material. USP2003086607052.
  22. Brandt, Luc J. L.; Charlier, Leon. Muffler shell filling process, muffler filled with fibrous material and vacuum filling device. USP2003066581723.
  23. Erickson Ernest A. (Sturtevant WI) Hanson Rodger D. (Jackson MI) Mews Lance D. (Clark Lake MI). Muffler with three part welded joint. USP1982084342373.
  24. Theodore G. Angelo ; John Hamrin ; Eivind Stenersen ; John Hiemstra ; Wayne M. Wagner ; Ted J. Wiegandt. Mufflers for use with engine retarders; and methods. USP2002036354398.
  25. Sterrett Dale E. ; Pekrul Eric C. ; Turner Thomas P.. Multi-chamber muffler with selective sound absorbent material placement. USP1998075783782.
  26. Luc Brandt BE; Leon Charlier BE. Process for filling a muffler and muffler filled with fibrous material. USP2002076412596.
  27. David F. Lewin. Process for filling a muffler shell with fibrous material. USP2002096446750.
  28. Watanabe Kyoichi,JPX ; Nemoto Kouichi,JPX. Sound absorption structure. USP1998075783780.
  29. Browning James R. (Berea OH) Carek Gerald A.. (Vermillion OH). Sound attenuating device and insert. USP1997085659158.
  30. Katsumi Morohoshi JP; Kouichi Nemoto JP; Masashi Ito JP; Takeshi Yamauchi JP. Sound-absorbing duct structure. USP2002056386317.
  31. Jean Jyh-Jian (No. 27 ; Hsi-Ning N. Rd. Taipei TWX) Jean Jyh-Perng (Taipei TWX). Straight through type muffler for generating the exhaust flow from an internal combustion engine. USP1989064841728.