Muffler for internal combustion engine

Details Muffler for internal combustion engine Muffler for internal combustion engine

1993-04-14

1994-04-19

Adams, Russell E.

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181268, 181269, 181282, F01N 108

Patent

active

053047494

ABSTRACT:
A compact muffler for an internal combustion engine provides significant sound attenuation and back pressure reduction. The muffler is fabricated in the form of an elongated rectangular box with the exhaust pipe connected to an inlet in the center of one end, and the tail pipe of the vehicle connected to an outlet through the opposite end. Several wedge-shaped or V-shaped exhaust pulse splitting plates are located within the casing to split and recombine the stream of exhaust pulses passing through the casing. The splitting devices are located in the casing in positions which cause the different split streams of the exhaust pulses to be intercepted at different distances to cause the pulses passing through different parts of the casing to be out of phase with one another. The out-of-phase streams of the split exhaust pulses are recombined to flow out of the outlet.

REFERENCES:
patent: 4574914 (1986-03-01), Flugger
patent: 5123502 (1992-06-01), Flugger

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