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특허 상세정보

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 특허를 인용한 특허 피인용횟수: 17

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  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.
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