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US 8,636,101 B2Granted
Device for damping and scattering hydrosound in a liquid
OwnerKarl-Heinz Elmerinventor
Life of this patent
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Abstract
A device for damping and scattering hydrosound and wave motions in water includes a plurality of envelope bodies, each enclosing a gas and each spaced at a distance from one another and surrounded by the water, wherein the device is configured to receive water flowing through it in a direction of sound propagation.
Claims7
A device for damping hydrosound in liquid having a frequency range emitted from a sound-emitting body in the liquid, the device comprising:
- a cage disposed in a vicinity of the sound-emitting body, the cage including a supporting structure of a solid material;
- a plurality of envelope bodies attached to the cage, each of the plurality of envelope bodies including a thin-walled, elastic material enclosing a gas, wherein a material, diameter and pressure of each envelope body is such that a natural frequency of the envelope body corresponds to the frequency range so as to dampen the hydrosound through resonance oscillations.
A method comprising:
- positioning a device for damping hydrosound that is emitted from a sound-emitting body in a liquid in a vicinity of the sound-emitting body, the device comprising:
- a cage including a supporting structure of a solid material;
- a plurality of envelope bodies attached to the cage, each of the plurality of envelope bodies including a thin-walled, elastic material enclosing a gas, wherein a material, diameter and pressure of each envelope body is such that a natural frequency of the envelope body corresponds to a frequency range emitted from the sound-emitting body so as to dampen the hydrosound through resonance oscillations;
- and
- operating the sound-emitting body such that the hydrosound is dampened by the device.
2 more elements
Dependencies are inferred from the claim text.