Combination muffler and catalytic converter

Details Combination muffler and catalytic converter Combination muffler and catalytic converter

1993-11-17

1994-08-16

Gellner, Michael L.

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181258, F01N 300

Patent

active

053389034

ABSTRACT:
A combination muffler and catalytic converter for an exhaust system of a small internal combustion engine. The catalytic converter is mounted within a chamber formed inside the muffler which functions not only to contain the catalytic converter but also to provide sound attenuation. The combination muffler/catalytic converter also includes an assembly for introducing secondary air into the interior of the muffler body containing the catalytic converter so that harmful uncombusted components such as hydrocarbons, carbon monoxide and nitrous oxides contained in the exhaust gases are further combusted prior to exiting the muffler. The secondary air supply assembly includes an opening formed in the muffler body which communicates between the interior of the muffler body and atmosphere, and a reed valve mounted directly on the muffler body adjacent this opening. The reed valve is operable in response to exhaust gas pressure pulsations within the muffler between a normally closed position which seals the opening and an open position which unseals the opening to permit atmospheric air to flow into the interior of the muffler body.

REFERENCES:
patent: 1575657 (1926-03-01), Straussler
patent: 1793813 (1931-02-01), MacKinnon
patent: 3106821 (1963-10-01), Ridgway
patent: 3116596 (1964-01-01), Boehme et al.
patent: 3124930 (1964-03-01), Powers
patent: 3247665 (1966-04-01), Behrens
patent: 3247666 (1966-04-01), Behrens
patent: 3314230 (1967-04-01), Vanderpoel
patent: 3498054 (1970-03-01), Theed
patent: 3595015 (1971-07-01), Kretschmer
patent: 3653212 (1972-04-01), Gast et al.
patent: 3656915 (1972-04-01), Tourtellotte
patent: 3775064 (1973-11-01), Berger et al.
patent: 3963444 (1976-06-01), Yamada et al.
patent: 3981145 (1976-09-01), Noguchi et al.
patent: 4032310 (1977-06-01), Ignoffo
patent: 4050903 (1977-09-01), Bailey et al.
patent: 4085586 (1978-04-01), Shibata
patent: 4094644 (1978-06-01), Wagner
patent: 4165611 (1979-08-01), Ishikawa
patent: 4180975 (1980-01-01), Takagi et al.
patent: 4188783 (1980-02-01), Sayo et al.
patent: 4209493 (1980-06-01), Olson
patent: 4218422 (1980-08-01), Schock et al.
patent: 4354349 (1982-10-01), Otani et al.
patent: 4444725 (1984-04-01), Feaster
patent: 4457895 (1984-07-01), Prigent
patent: 4579194 (1986-04-01), Shiki et al.
patent: 4830833 (1989-05-01), Shaff
patent: 4867270 (1989-09-01), Wissmann et al.
patent: 4890690 (1990-01-01), Fischer et al.
patent: 4894987 (1990-01-01), Harwood et al.
patent: 4972921 (1990-11-01), Takada et al.
patent: 5043147 (1991-08-01), Knight

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