1975-12-29
1977-01-25
Tomsky, Stephen J.
Acoustics
Auditorium
181 47R, 181 48, F01N 104
Patent
active
040046508
ABSTRACT:
The invention relates to silencers for damping sound waves created in gases, comprising a series of thin-walled, tubular damping units and an inner tube for conducting gases through the end walls of the units, the tube having openings communicating with the chambers defined in each unit. In accordance with the invention each damping unit is surrounded by an outer tube which is connected in a gas-tight fashion through two end walls with the cylindrical surface of the damping unit, and the space between the cylindrical surface and the outer tube is divided into at least two chambers communicating with the inner tube through a transversely-extending branch pipe.
REFERENCES:
patent: 1938973 (1933-12-01), Oldberg
patent: 1975861 (1934-10-01), Oldberg
patent: 2401570 (1946-06-01), Koehler
patent: 2937707 (1960-05-01), Ernst
Gardell Lars Johan
Wilhelmsson Bertil Lennart
Saab-Scania Aktiebolag
Tomsky Stephen J.
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