Silencer, especially for portable motor chain saws

Details Silencer, especially for portable motor chain saws Silencer, especially for portable motor chain saws

1977-09-23

1979-03-06

Hix, L. T.

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181229, 181240, 181265, 181272, F01N 114, F01N 700

Patent

active

041426070

ABSTRACT:
Disclosed is an exhaust silencer suitable for use with portable combustion engines, and particularly for use with chain saw engines, comprising a chamber having an inlet and outlet for receiving the engine exhaust; means disposed about the chamber outlet for reducing the kinetic energy of the exhaust flowing therethrough; and an air duct means mounted exteriorly of the chamber below the chamber outlet for cooling the chamber, the kinetic energy reducing means, and the exhaust gas by contact with a stream of ambient air flowing therethrough.

REFERENCES:
patent: 3650354 (1972-03-01), Gordon
patent: 4060985 (1977-12-01), Fukushima

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