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특허 상세정보

Damped heat shield

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F01N-007/10   
미국특허분류(USC) 60/323 ; ; 60/272 ; ; 60/299 ; 181/240
출원번호 US-0258962 (1994-06-13)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 21  인용 특허 : 19

A damped heat shield for a high temperature portion of a vehicle exhaust system. The heat shield has inner and outer metal layers of substantially different thicknesses and substantially different resonant frequencies, which causes the shield to damp vibrational energy and reduce radiated sound energy and noise. Between the metal layers is a layer of sound and heat shielding material such as aluminum foil or ceramic fiber paper. The metal layers are preferably stainless steel, cold rolled steel, aluminized steel, aluminum-clad steel, or aluminum. If cold...


A damped heat shield for an exhaust system of an internal combustion engine, comprising two metal layers shaped to conform generally to the shape of a high temperature portion of said exhaust system while being spaced away therefrom by an air gap, said metal layers having substantially the same shape and extending in face-to-face adjacency, a layer of sound and heat shielding material positioned between said two metal layers, one of said metal layers having a first predetermined thickness and having a first resonant frequency, the other of said metal lay...

이 특허에 인용된 특허 (19)

  1. Bosch Norbert (Arbon CHX). Casting for muffling sound conducted through solids and method for its production and its use. USP1979034142605.
  2. Moore ; III Dan T. (Cleveland Heights OH). Damped heat shield. USP1993085233832.
  3. Garcea Giampaolo (Milan IT). Exhaust conveying system for internal combustion engines. USP1977054022019.
  4. Engquist Karl R. (Peoria IL) Klintworth Keith K. (Dunlap IL). Exhaust manifold shield. USP1986094612767.
  5. Kicinski Kenneth J. (Stoughton WI) Printiss ; Sr. Frederick H. (Stoughton WI) Jasensky Richard J. (Stoughton WI). Exhaust muffler with protective shield. USP1984124487289.
  6. Akatsuka Nobuyuki (Shizuoka JPX). Exhaust-manifold heat insulating board. USP1990044914912.
  7. Yamada Shunichi (Nagoya JPX) Hamanaka Toshiyuki (Suzuka JPX) Harada Takashi (Nagoya JPX). Heat insulating ceramic insert-cast articles for use in exhaust channels in internal combustion engines and a process fo. USP1990114972674.
  8. Amagai ; Susumu ; Kawai ; Shizuya ; Kan ; Hiroyasu ; Aizawa ; Hideo. Heat shield for an exhaust tail pipe. USP1978044085816.
  9. Cyb Frederick F. (23351 Filmore Taylor MI 48180). Heat-resistant exhaust manifold and method of preparing same. USP1990064930678.
  10. Shimura Atsuo (Tokyo JPX). Heat-shielding structure. USP1984024433542.
  11. Bodendorf Warren J. (Montgomery MA) Podach Thomas A. (South Hadley MA). High temperature resistant compressible sheet material for gasketing and the like. USP1981124308093.
  12. Kirchweger Karl (Graz ATX) Fachbach Heinz (Graz ATX) Thien Gerhard (Graz ATX) Greier Josef (Graz ATX). Internal combustion engine having a noise suppressing encapsulation. USP1980034194484.
  13. Nawrocki Donald A. (Clarkston MI) Pfeifer Joseph (LaGrange GA) Scislowicz Michael (Utica MI). Method for making a heat shield. USP1992125167060.
  14. Ogawa Naoki (Yokohama JPX). Noise reducing cover for internal combustion engine. USP1984024432433.
  15. Grosseau Albert (Chaville FR). Protective screens for exhaust systems of motor vehicles. USP1976063963087.
  16. Donohue ; Henry Patrick. Reflectant foil insulated steel doors. USP1978104118543.
  17. Moore ; III Dan T. (Cleveland Heights OH) Collins Edward A. (Avon Lake OH) Wheeler Maurice E. (Ashtabula OH). Sound dampened automotive enclosure such as an oil pan. USP1989074851271.
  18. Scherzer Wilhelm (Berndorf ATX). Sound-damping and heat-insulating composite plate. USP1987124709781.
  19. Shinozaki Masatoshi (Mobara JPX) Matsumoto Yoshihiro (Chiba JPX) Aoyagi Yoshiki (Yokohama JPX) Kojima Kazuhisa (Machida JPX). Vibration damping composite laminate. USP1987074678707.

이 특허를 인용한 특허 피인용횟수: 21

  1. Matias, Calin; Boogemans, Mark; Kirkwood, Jason. Acoustical heat shield. USP2005116966402.
  2. Fisk, Jonathan W.; Thurber, Mark C.; Sloan, David M.; Gheyara, Vistasp; Keys, James F.. Acrylate-based sound damping material and method of preparing same. USP2011077973106.
  3. White, James E.. Air cooled heat shield. USP2010117842396.
  4. Haunstetter, Frank. Discoloration protection. USP2016049303546.
  5. Haunstetter, Frank. Discoloration protection. USP2017059644523.
  6. Farkas, Kornel. Heat shield for an exhaust system of an internal combustion engine. USP2003116647715.
  7. Chen,Colin C.; Popielas,Frank W.; Boogemans,Mark; Matias,Calin; Moffat,Ryan P.; Minkov,Marsha A.. Heat shield having a fold-over edge crimp with variable width and method of making same. USP2006026994901.
  8. Pirchl Gerhard,CHX. Heat shield with acoustic insulation. USP1999125996730.
  9. Chen, Colin Ching-Ho; Popielas, Frank Walter; Boogemans, Mark; Matias, Calin. Insulated heat shield. USP2003076598389.
  10. Chen, Colin Ching-Ho; Popielas, Frank; Matias, Calin. Insulated heat shield with waved edge. USP2004096797402.
  11. Feldman Rubin. Insulative shield, particularly for automotive exhaust components. USP1999115974784.
  12. Yoshida,Takashi; Kinoshita,Kyoichi; Tanaka,Katsufumi; Sugiyama,Tomohei; Kudo,Hidehiro; Kono,Eiji. Low-expansion unit, method of manufacturing the same and semiconductor provided with the same. USP2006087087316.
  13. Schenck ; Jr. James I. ; Stein Scott R.. Method of producing a sealed shielding unit. USP1999095953808.
  14. Kimura, Yasumasa; Fukushima, Yosuke. Muffler sound-insulation structure. USP2017059657616.
  15. Chen, Colin Ching-Ho; Boogemans, Mark; Matias, Calin. Noise attenuating insulated heat shield. USP2003066581720.
  16. Chen, Colin Ching-Ho; Boogemans, Mark; Matias, Calin. Sound barrier layer for insulated heat shield. USP2004016681890.
  17. Fetsko, Stephen A.; Keys, James F.; Fisk, Jonathan W.; Andel, Paul A.; Morris, Kris. Sound damping patch. USP2013078479876.
  18. Berbner,J��rgen; Pirchl,Christoph; Gn��dig,Christian. Soundproof thermal shield. USP2008117445084.
  19. Wheeler, Maurice E.; McDonel, Bradley D.. Thermoplastic vibrational damper with constraining layer. USP2010097799840.
  20. Rich, Jonathan E.; Cannon, Marcel R.; Swartzell, Terry A.; White, Andrew W.; Schmid, Kenneth D.; Keys, James F.; Fisk, Jonathan W.; Fetsko, Stephen A.; Evangelista, James J.. Vehicle panel assembly and method of attaching the same. USP2013038403390.
  21. Todd, John; Boyd, Robert S.; Care, Melvyn J.. Vibration dampening laminate. USP2004096790520.