Automotive exhaust system incorporating venturi to reduce back p

Details Automotive exhaust system incorporating venturi to reduce back p Automotive exhaust system incorporating venturi to reduce back p

1980-06-23

1982-02-02

Hix, L. T.

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181225, 181243, F01N 114

Patent

active

043135234

ABSTRACT:
A method and apparatus are provided for reducing back pressure within an exhaust system for an internal combustion engine by creating a venturi within the exhaust system and forcing air through the venturi to create suction for drawing exhaust gases away from the exhaust system. The exhaust system of a conventional automobile is modified by coupling one end of an air directing pipe to the tailpipe of the automobile near the outlet of the tailpipe and at an acute angle thereto for creating a venturi. Air is forced into the opposite end of the air directing pipe by an air scoop or a fan, and the forced air is directed through the outlet of the tailpipe for providing suction which draws exhaust gases out of the tailpipe.

REFERENCES:
patent: 1292283 (1919-01-01), Faber
patent: 1560947 (1925-11-01), Skelton

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