Sound absorber for compressed-air operated apparatuses, in parti

Details Sound absorber for compressed-air operated apparatuses, in parti Sound absorber for compressed-air operated apparatuses, in parti

1981-05-29

1983-01-11

Fuller, Benjamin R.

Acoustics

Sound-modifying means

Muffler, fluid conducting type

181243, 181267, 181272, 181281, 181282, F01N 108

Patent

active

043678076

ABSTRACT:
The sound absorber includes a main body (1), a housing component (2) attached thereon and a cap (3) threaded onto the main body. The compressed air exiting from the compressed-air vibrator flows from a first chamber (4) into a second chamber (5) provided with labyrinth-like baffles (7) and from there into a larger third chamber (6). The relieved compressed air then flows outside through an annular outlet slit (8a). Through rotation of the cap (3) there can be varied the cross-section of the outlet slit (8a). The cap (3) thereby also serves as a throttle valve.
The sound absorber is insensitive to oil-containing compressed air and, without an auxiliary throttle valve, facilitates a correlatable throttle of the exiting compressed air.

REFERENCES:
patent: 2046017 (1936-06-01), Coanda

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