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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
---|---|
국제특허분류(IPC7판) |
|
출원번호 | US-0822907 (1977-08-08) |
우선권정보 | SE-0009215 (1976-08-19) |
발명자 / 주소 |
|
인용정보 | 피인용 횟수 : 15 인용 특허 : 2 |
For dampening exhaust gas noise a muffler contains two portions, of which one is adapted to take care of high frequency noise and includes dampening material, and the other is adapted to take care of low frequency noise and is devoid of such material. The latter portion includes an inner, perforated
In a muffler for dampening exhaust noise composed of sound waves having various frequencies: an axially extending tube adapted to be connected to an exhaust pipe, a casing surrounding said tube, and being devoid of dampening material, first axial wall means extending longitudinally of said tube to s
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