Silencing device and air supply system
AssigneeFUJIFILM Corporation
InventorsShinya Hakuta, Shogo Yamazoe, Yoshihiro Sugawara, Akihiko Ohtsu
Life of this patent
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Abstract
A silencing device and an air supply system according to an embodiment of the present invention include a resonance silencer provided at a position connected to a space in which the sound source is located within the air supply system in order to silence the noise generated from the sound source in the housing, in which in a case where a resonance wavelength of the resonance silencer alone is denoted by λ, a distance by which the resonance silencer is separated from the sound source is less than λ/2. A fundamental resonance frequency of the resonance silencer is equal to or less than an acoustic upper limit frequency determined according to a size of the housing.
Claims18
A silencing device that is used in an air supply system having a housing, to silence noise generated from a sound source in the housing, the device comprising:
- a resonance silencer provided at a position connected to a space in which the sound source is located within the air supply system,
- wherein a distance by which the resonance silencer is separated from the sound source is less than λ/2, with λ being a resonance wavelength of the resonance silencer alone, and
- a fundamental resonance frequency of the resonance silencer is equal to or less than an acoustic upper limit frequency of the housing,
- a ventilation portion that allows air to be supplied in the air supply system to pass therethrough is provided,
- the resonance silencer has an opening portion which is disposed at a position facing the ventilation portion, and
- an inside of the resonance silencer communicates, through the opening portion, with the space in which the sound source is located.
Dependencies are inferred from the claim text.