公开(公告)号：US4396090A

公开(公告)日：1983-08-02

申请号：US361042

申请日：1982-03-23

Applicant: Gilbert Wolfhugel

Inventor： Gilbert Wolfhugel

IPC: F01N1/08 ,  F01N1/10 ,  F01N13/18 ,  F01N7/18

CPC classification number: F01N13/1872 ,  F01N1/084 ,  F01N1/10 ,  F01N13/185 ,  F01N13/1888 ,  F01N2240/20 ,  F01N2310/02 ,  F01N2450/20 ,  F01N2470/06 ,  F01N2470/10

Abstract: A muffler for a motor vehicle is made up of a housing enclosing a pair of sheet metal plates impressed with semi-circular depressions with the plates combining to form a sinuously shaped gas duct of circular cross section. Walls positioned within the housing divide its interior into chambers. Perforations in the gas duct open into the chambers. Lugs are punched out of the sheet metal plates in a uniform pattern and the lugs in one plate are inserted through the corresponding punched openings in the other and are bent into locking engagement with the other plate. These lugs and the corresponding openings contribute to the mechanical strength of the muffler. The ends of the plates forming the inlet and outlet ends for the gas duct have flanges which also contribute to the mechanical strength of the muffler. Cooperating interfitting corrugations in the plates located at specific positions relative to the gas duct prevent partial short circuiting of the exhaust gas flow through the muffler.

Abstract translation: 用于机动车辆的消声器由包围有半圆形凹陷的一对金属板的壳体组成，板与之组合，以形成圆形截面的弯曲形状的气体导管。 定位在壳体内的墙将其内部分成腔室。 气体管道中的穿孔进入腔室。 凸块以均匀的图案从金属板上冲出，并且一个板中的凸耳通过相应的冲压开口插入另一个板中，并弯曲成与另一个板锁定接合。 这些凸耳和相应的开口有助于消音器的机械强度。 形成气体管道的入口端和出口端的板的端部具有也有助于消声器的机械强度的凸缘。 位于相对于气体管道的特定位置的板中的协同的相互配合的波纹防止了通过消音器的废气流的部分短路。