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|국가/구분||United States(US) Patent 등록|
|국제특허분류(IPC7판)||F01N-001/02 F01N-001/10 F01N-001/24 F01N-013/16 F01N-013/18|
|미국특허분류(USC)||181/250; 181/246; 181/252; 181/256; 181/282|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 17 인용 특허 : 11|
An absorption muffler includes a metallic exhaust pipe including a plurality of perforations, a polymeric housing carried by the exhaust pipe and enclosing the plurality of perforations, and including axially opposed ends. Thermal insulation is carried radially between the exhaust pipe and the polymeric housing and axially between the axially opposed ends inclusive thereof. Acoustic insulation is carried between the thermal insulation and the polymeric housing.
What is claimed is: 1. A muffler comprising: an exhaust pipe having a plurality of perforations and at least one pipe sealing flange extending generally radially outwardly; a polymeric housing carried by the exhaust pipe and enclosing the plurality of perforations, the polymeric housing including (a) at least one polymeric housing sealing flange integrally formed of the polymeric housing extending generally radially inwardly toward the exhaust pipe and spaced radially from the exhaust pipe and spaced axially from the at least one pipe sealing flange and...