Muffler

Details Muffler Muffler

1992-04-20

1993-09-14

Gellner, Michael L.

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181272, F01N 702

Patent

active

052451402

ABSTRACT:
This invention relates to a muffler and in particular to one including a high frequency chamber, a first exhaust pipe connected between an engine and the high frequency chamber, a second exhaust pipe disposed within said high frequency, an intermediate frequency chamber connected with the other end of the second exhaust chamber, a third exhaust pipe disposed within the intermediate frequency chamber, a low frequency chamber connected with the other end of the third exhaust pipe, and a tubular pipe disposed within the low frequency chamber, whereby the noise will be effectively suppressed without decreasing the flow rate of the exhaust gas and the output power of the engine.

REFERENCES:
patent: 1984707 (1934-12-01), Sommer
patent: 3306395 (1967-02-01), Jettinghoff
patent: 3338331 (1967-08-01), Jettinghoff
patent: 3807527 (1974-04-01), Bergson et al.
patent: 4116303 (1978-09-01), Trudell
patent: 4909347 (1990-03-01), Wang
patent: 4924966 (1990-05-01), Kanda et al.

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