Exhaust gas muffler for a two-stroke engine

Details Exhaust gas muffler for a two-stroke engine Exhaust gas muffler for a two-stroke engine

1988-09-06

1990-01-02

Fuller, B. R.

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181228, 181231, 181258, 181262, 181265, 181272, 181282, 60299, 60314, F01N 114, F01N 315

Patent

active

048906905

ABSTRACT:
The invention is directed to an exhaust gas muffler for a two-cycle engine, especially for a handheld portable tool, such as a chain saw. In exhaust gas mufflers equipped with a catalyzer, the formation of flame from the fuel-containing exhaust gases exiting from the muffler must be prevented. These exhaust gases are intensely overheated because of the exothermal process in the catalyzer. The muffler according to the invention includes a catalyzer which establishes a connection between separate component chambers of the muffler housing. The muffler can be mounted directly on the motor outlet.

REFERENCES:
patent: 3644098 (1972-02-01), De Palma et al.
patent: 3798769 (1974-03-01), Bailey
patent: 4050903 (1977-09-01), Bailey et al.
patent: 4086063 (1978-04-01), Garcea
patent: 4142607 (1979-03-01), Landwehr et al.
patent: 4370855 (1983-02-01), Tuggle
patent: 4693337 (1987-09-01), Timmermeister

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