Acoustics – Sound-modifying means – Muffler – fluid conducting type
Patent
1980-03-10
1981-08-04
Hix, L. T.
Acoustics
Sound-modifying means
Muffler, fluid conducting type
181272, 181275, F01N 110
Patent
active
042817420
ABSTRACT:
This invention relates to a silencer for muffling the flow of exhaust gases from an engine before they enter the atmosphere. This silencer comprises a tubular housing having an absorption section with an inlet and an outlet opening. The absorption section is constructed of three walls: and outside wall, a middle wall and a perforated inside wall. Positioned between the middle and outside wall is a layer of heat insulating material and positioned between the middle and inside wall is a layer of sound absorption material. Two symmetrical members are aligned parallel to each other within the absorption section with each member having an inner and an outer wall and a layer of sound absorption material therebetween. When the two symmetrical members are connected together, they form a hollow tubular inlet connector and a hollow tubular outlet connector which have parallel aligned axis. In addition, two longitudinally extending slots are constructed in each tubular connector. These slots communicate with each other by two separate passageways formed by the perforated inside wall of the absorption section and the outer walls of the two symmetrical members. These two passageways channel the exhaust gas through the silencer and out to the atmosphere.
REFERENCES:
patent: 3243010 (1966-03-01), Flynn
patent: 4126205 (1978-11-01), Baverschmidt
patent: 4136757 (1979-01-01), Baverschmidt
Adickes Henning
Scheuermann Albert
Deere & Company
Hix L. T,.
Tarcza Thomas H.
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