A device for regularising the velocity of a column of gas endowed with a pulsating movement, and for lessening the noise due to said movement

摘要

357,108. Silencing gaseous currents. SOC. RATEAU, 40, Rue du ColisÚe, Paris. March 11, 1930, No. 7914. Convention date, March 11, 1929. Void [Published under Sect. 91 of the Acts]. [Class 7 (ii).] The velocity of a column of pulsating gas is rendered more uniform, and the noise therefrom reduced by disposing in the path of the gas a helicoidal rotor a of relatively high inertia. The rotor is mounted in bearings d and its inertia value may be increased by attaching a flywheel. Where the engine comprises a number of cylinders, the exhaust periods of which overlap, several silencers should be provided, each of which is connected with such a number of cylinders as to prevent overlapping.