|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||181/249 ; 181/269|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 41 인용 특허 : 0|
A muffler of the Helmholtz resonator type has a housing surrounding a main gas flow conduit, the gas flow conduit having an apertured zone within the housing wherein apertures extend through the conduit wall, the shape of the conduit wall at the apertured zone being so varied that gas flows through the apertures into or out of the housing, the flow inhibiting the development of whistle noises.
A muffler comprising a housing having end plates, stiffeners between the end plates, said stiffeners containing apertures which extend therethrough, a generally circular section conduit extending through said housing and being supported by said stiffeners and said end plates, said housing and conduit defining therebetween a muffler space, an apertured zone extending along part of said conduit between said stiffeners wherein apertures through the conduit wall provide gas flow passages between the space within the conduit and the muffler space, the apertur...