Noise absorber for air or gas flows
AssigneeTemet Oy
InventorMatti Purhonen
Life of this patent
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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.
Claims7
A noise absorber for an air or gas flow, including wall means defining a flow channel and inlet and outlet connections at opposite ends of said flow channel, said flow channel being substantially rectangular in cross-section and said wall means comprising two pair of opposed, curved walls, said walls extending from the inlet connectin to the outlet connection and defining respective sides of said substantially rectangular cross-section, the opposed walls of one pair being concave towards each other and the opposed walls of the other pair being convex towards each other, and the noise absorber also comprising means defining compartments externally of said walls and functioning as resonator and/or absorption mufflers.
Dependencies are inferred from the claim text.