Muffler for motor vehicles

Details Muffler for motor vehicles Muffler for motor vehicles

1998-06-01

1999-10-26

Dang, Khanh

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181262, 181267, 181279, 181283, F01N 708

Patent

active

059710977

ABSTRACT:
The present invention relates to a muffler used in a motor vehicle for cooling the engine exhaust gases. The muffler has an internal tubular member defining an internal chamber and a middle tubular member concentric in relation to and supported on the internal tubular member. The internal and middle tubular members form a first ring-shaped chamber adapted to connect to the exhaust pipe. The muffler also has an external tubular member being concentric in relation to and supported on the middle tubular member. The middle tubular member and the external tubular member form a second ring-shaped chamber with a third inlet portion. Hence, engine exhaust gases of the motor vehicle pass through the first ring-shaped chamber and are sufficiently cooled and depressurized by cooling air that passes through the internal and second ring-shaped chambers.

REFERENCES:
patent: 2055453 (1936-09-01), Horton
patent: 2185489 (1940-01-01), Wilman
patent: 3170280 (1965-02-01), Rees
patent: 3888331 (1975-06-01), Wang
patent: 4228868 (1980-10-01), Raczuk
patent: 4317502 (1982-03-01), Harris
patent: 4485890 (1984-12-01), Harris et al.

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