Acoustics – Sound-modifying means – Muffler – fluid conducting type
Patent
1984-05-14
1986-06-17
Fuller, Benjamin R.
Acoustics
Sound-modifying means
Muffler, fluid conducting type
181267, 181272, 181276, 181281, F01N 108
Patent
active
045950733
ABSTRACT:
A plug section for a muffler, including an outer body and having an inlet pipe for introducing exhaust gas into the body. The inner end of the inlet pipe located within the body portion is closed off. Surrounding the inlet pipe is a conical baffle having a small diameter end secured to the inlet pipe to provide a tapered chamber between the inlet pipe and the conical baffle, while the space between the conical baffle and the outer body defines an outer chamber. Both the inlet pipe and the conical baffle are provided with a plurality of perforations. Exhaust gas entering the inlet pipe flows outwardly through the perforations in the inlet pipe to the tapered inner chamber and then flows through the perforations in the conical baffle to the outer chamber. The use of the perforated conical baffle provides a substantial improvement in sound attenuation, reducing both the shell noise level and the outlet noise level.
REFERENCES:
patent: 582485 (1897-05-01), Reeves et al.
patent: 712791 (1902-11-01), Hedstrom
patent: 927246 (1909-07-01), Jackson
patent: 1045419 (1912-11-01), Matula
patent: 1128306 (1915-02-01), Goelzer
patent: 1554351 (1925-09-01), Jack
patent: 1670766 (1928-05-01), Gould et al.
patent: 1861775 (1932-06-01), Aseltine
patent: 2036138 (1936-03-01), Haas
patent: 2716463 (1955-08-01), Latulippe
patent: 3154388 (1964-10-01), Purse
patent: 3354986 (1967-11-01), Moss et al.
patent: 4056934 (1977-11-01), Mizusawa et al.
Technical Paper Series, Society of Automotive Engineers "An Analytical Model for Exhaust System Design", Eriksson, Apr. 10-12, 1978.
American Society of Mechanical Engineers, "Computer-Aided Analysis of Exhaust Mufflers", Thawani, 82-WA/NCA-10.
Fuller Benjamin R.
Nelson Industries Inc.
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