|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||181/250 ; 181/251 ; 181/273 ; 181/275|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 17 인용 특허 : 3|
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.
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 ...