Acoustics – Sound-modifying means – Muffler – fluid conducting type
Patent
1989-10-02
1991-07-23
Brown, Brian W.
Acoustics
Sound-modifying means
Muffler, fluid conducting type
F01N 124
Patent
active
050335812
ABSTRACT:
A muffler for use with an internal combustion engine or the like having improved attenuation capabilities. The muffler of the disclosure comprises at least two separate passages interconnected in series with a single or multiple output exhaust manifold and a single or multiple tail pipe of an engine exhaust system. At least one of the passages has a length greater than the other or others. The total cross-sectional area of the passages is approximately equal to or greater than the cross-section of the single or multiple exhaust manifold and single or multiple tail pipe to eliminate back pressure and maintain column inertia. In an embodiment, a housing encloses the passages and the overall appearance is that of a conventional muffler. In still another embodiment, at least one of the passages within the housing are perforated with a plurality of apertures. These apertures can be all of the same dimension or can be of different cross-sectional areas. In still another embodiment, the space between the passages and the inside housing walls is filled with a sound absorbing material.
REFERENCES:
patent: 1591088 (1926-07-01), Holmes
patent: 1740805 (1929-12-01), Brice
patent: 4712644 (1987-12-01), Sun
patent: 7019697 (1935-11-01), Smith
Brown Brian W.
Feuling Engineering, Inc.
Gilliam Frank D.
LandOfFree
Muffler for an internal combustion engine does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Muffler for an internal combustion engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Muffler for an internal combustion engine will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-426972