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Low back pressure exhaust silencer for diesel locomotives

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F01N-001/02    F01N-001/08   
미국특허분류(USC) 181/250 ; 181/251 ; 181/273 ; 181/275
출원번호 US-0262464 (1981-05-11)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 17  인용 특허 : 3
초록

An exhaust silencer especially for turbo-charged diesel locomotives with a single exhaust outlet combines a straight through exhaust duct preferably diverging to recover velocity pressure and minimize back pressure with dual silencing means including a large expansion tank around the duct tuned to attenuate a fundamental low frequency exhaust noise peak and smaller reactive chambered means in the duct sized to attenuate a selected mid range of higher frequency exhaust noise. Various features are included.

대표
청구항
▼

A low back pressure exhaust silencer for turbocharged diesel locomotives, said silencer comprising a straight exhaust duct having inlet and outlet ends connected by walls including two opposite sides, expansion chamber defining means adjacent said duct and communicating therewith through a plurality of ports in said opposite sides, said expansion chamber means being tuned to respond to and attenuate a fundamental low frequency exhaust noise peak of the associated engine, and means defining reactive chambers covered by perforated walls in said duct, said ...

이 특허에 인용된 특허 (3)

  1. Blaser Dwight A. (Sterling Heights MI) Goding David J. (Willow Springs IL). Compact exhaust silencer for diesel locomotives. USP1981084281741.
  2. Collin Lars (Vasterbergsgatan 3 Molndal SEX 43139) Landalv Henrik (Attehogsgatan 10a Goteborg SEX 41674). Exhaust gas muffler. USP1979084164266.
  3. Ingard Uno (Kittery Point ME) Morgan James A. (Wyckoff NJ) Hirschorn Martin (New York NY). Packless silencer. USP1981094287962.

이 특허를 인용한 특허 피인용횟수: 17

  1. Moffat, George H.; Stubbs, Gene Woodard; Voll, William Albert. Acoustic muffler for turbine engine. USP2004026695094.
  2. Nguyen, Phuong H.; Sikora, Joseph A.; Campbell, Thomas A.. Automatic control systems for aircraft auxiliary power units, and associated methods. USP2011118061650.
  3. Nguyen, Phuong H.; Sikora, Joseph A.; Campbell, Thomas A.. Automatic control systems for aircraft auxiliary power units, and associated methods. USP2011027891605.
  4. Nguyen,Phuong H.; Sikora,Joseph A.; Campbell,Thomas A.. Automatic control systems for aircraft auxiliary power units, and associated methods. USP2008047364116.
  5. Perera, Mudalige Anoj Menushka Mario. Blast protection damper. USP2018039920871.
  6. Williams,Nicholas A.. Composite muffler for use with airborne auxiliary power unit. USP2008107431125.
  7. Campbell, Thomas A.; Chambers, David S.; Willie, Robert H.; Rust, Charles W.. Dual flow APU inlet and associated systems and methods. USP2009117611093.
  8. Campbell,Thomas A.; Chambers,David S.; Willie,Robert H.; Rust,Charles W.. Dual flow APU inlet and associated systems and methods. USP2008037344107.
  9. Bayliss, Andrew J.; Paterson, John T.; Retz, Kevin. Independent power generation in aircraft. USP2015028950703.
  10. Bayliss, Andrew J.; Paterson, John T.; Retz, Kevin. Independent power generation in aircraft. USP2014028657227.
  11. Campbell,Thomas A.; Voll,William A.; Diamond,John A.. Integrated axially varying engine muffler, and associated methods and systems. USP2007097267297.
  12. Price, Kenneth E.. Muffler/exhaust extractor. USP2003016510921.
  13. Shaw,Christopher E.; Bielicki,James B.. Noise attenuation device for an air induction system. USP2007047207310.
  14. Tracy, Mark S.; Tang, Punan; Chowdhury, Mohammed I.; Price, Herman A.. Noise reduction with resonatance chamber. USP2009067546898.
  15. Zielinski, Edward; Bernier, Alan T.; Knechtel, Kent W.; Campbell, Thomas A.; White, Jeffrey J.; Ralston, Mark D.. Systems and methods for starting aircraft engines. USP2009047513119.
  16. Lwasa, Ronald M.; Chow, Allen D.. Thermally compliant APU exhaust duct arrangements and associated systems and methods. USP2010087765784.
  17. Karimi, Kamiar J.; Liu, Shengyi; Liffring, Mark E.; Helton, Steven B.; Fu, Sheau-Wei (Johnny). Vehicle electrical power management and distribution. USP2014058738268.

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