Noise absorber for air or gas flows

Details Noise absorber for air or gas flows Noise absorber for air or gas flows

1977-01-14

1978-08-29

Watson, Robert C.

Acoustics

Sound-modifying means

Muffler, fluid conducting type

F01N 104

Patent

active

041097548

ABSTRACT:
A noise absorber for air or gas flows, which comprises a flow channel provided at opposite ends with flow inlet and outlet connections. One pair of opposite walls of the flow channel extends concavely and the other pair of opposite walls extends convexly from the inlet connection to the outlet connection. The flow channel is positioned in a surrounding box. Closed hollow spaces are formed between each wall of the flow channel and the opposite wall of the box, which spaces form compartments acting as resonator and/or absorption mufflers.

REFERENCES:
patent: 2994401 (1961-08-01), Bourne et al.
patent: 3955643 (1974-07-01), Clark

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