Modular muffler for motor vehicles

Details Modular muffler for motor vehicles Modular muffler for motor vehicles

1993-06-25

1994-12-06

Dang, Khanh

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181228, 181252, 181257, 181264, 181267, 181268, F01N 708

Patent

active

053713311

ABSTRACT:
A muffler for use on the exhaust system of the motor vehicle. The muffler has a central pipe which is surrounded by an outer pipe which leaves an annular space between the two. The outer pipe is open at both ends and the annular space is filled with a sound deadening material. The central pipe has openings which pass to the annular space and a perforated sound deadening member is affixed to the inner surface of the central pipe. Preferably, the outer pipe is outwardly flared at its upstream end, and the perforated sound deadening member is conical in shape.

REFERENCES:
patent: 1922848 (1933-08-01), Harley
patent: 3786791 (1974-01-01), Richardson

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