Acoustics – Sound-modifying means – Muffler – fluid conducting type
Patent
1989-06-15
1990-11-27
Fuller, Benjamin R.
Acoustics
Sound-modifying means
Muffler, fluid conducting type
181240, 181243, 181264, 181265, 181272, F01N 108
Patent
active
049729217
ABSTRACT:
An improved muffler of relatively large size for internal combustion engines is shown, which comprises a main hollow shell, assembled from half sections with caulked flanges to join the sections together into an airtight enclosure, at least one perforated baffle plate having its periphery clamped between the opposite edges, exhaust inlet and outlet ports. The baffle plate is bent into a curve defining in the inside of the shell chambers differing in volume from one another, through which the exhaust gases from an engine are forced to flow so that the gases alternately expand and contract. In addition to the rigid integration of the baffle plate with the shell by caulking, various interlocking and elastic members rigidly interconnect between the plate and the inside walls of the shell in such a manner as to reduce development or transmission of the vibrations in the shell components due to the pressure oscillations of the exhaust gases. Furthermore, an anti-skid stopper is formed in the baffle plate adjacent to the periphery to be caulked to stand to abut the side of the half section thereby prevent the associated edge being caulked from falling off from engagement with the other edge when caulking pressures are being applied to the edges.
REFERENCES:
patent: 1822990 (1931-09-01), Gorsline
patent: 3709320 (1973-01-01), Hollerl et al.
patent: 3968854 (1976-07-01), Gordon et al.
patent: 3987868 (1976-10-01), Betts
patent: 4132286 (1979-01-01), Hasui et al.
patent: 4415059 (1983-11-01), Hayashi
Shibata Hisayoshi
Takada Toshiyuki
Fuller Benjamin R.
Kawasaki Jukogyo Kabushiki Kaisha
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