Aspirating muffler

Details Aspirating muffler Aspirating muffler

1986-01-13

1987-10-06

Fuller, Benjamin R.

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181255, F01N 114

Patent

active

046976680

ABSTRACT:
An aspirating muffler having a simplified venturi construction. The muffler includes a body having an inlet pipe connected to the exhaust system of an engine and having an outlet pipe. The upstream end of the outlet pipe is rolled inwardly to provide the end with a reduced cross sectional area which defines a venturi. An aspirating tube which is connected to an air cleaner pre-cleaner for the engine communicates with the venturi and flow of exhaust gas through the venturi end of the outlet pipe creates an aspirating action to draw solid particles from the pre-cleaner and discharge the particles through the outlet pipe to the atmosphere.

REFERENCES:
patent: 3419892 (1968-12-01), Wagner et al.
patent: 4142606 (1979-03-01), Vanderzanden et al.
patent: 4325460 (1982-04-01), Hoppenstedt
patent: 4388091 (1983-06-01), Khosropour

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