Sound-absorbing covering, especially radiator covering for motor

Details Sound-absorbing covering, especially radiator covering for motor Sound-absorbing covering, especially radiator covering for motor

1979-02-22

1980-07-15

Hix, L. T.

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181258, 181268, F04F 1704

Patent

active

042123690

ABSTRACT:
A sound-absorbing covering, especially a radiator covering for motor vehicles whose air channel is adapted to be traversed by a gaseous medium in a direction opposite to the direction of travel of the sound; at least one section of a channel wall of the air channel is formed by an arcuate wall portion parabolically shaped in cross section which faces with its apex the in-flow side of the gaseous medium and which terminates in an arcuate apex portion projecting into the interior space of the channel; the arcuate apex portion shields a trough-shaped recess open in the direction toward the discharge side of the gaseous medium, in which is arranged a sound-absorbing insert within the area of the focal line.

REFERENCES:
patent: 1964845 (1934-07-01), Dietze et al.
patent: 3857453 (1974-12-01), Buttke et al.
patent: 3923114 (1975-12-01), Suzuki
patent: 4121683 (1978-10-01), Kohriyama
patent: 4122908 (1978-10-01), Miers et al.
patent: 4169501 (1979-10-01), Tukeuchi et al.

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