Silencing structure and silencing system
AssigneeFUJIFILM Corporation
InventorsYoshihiro SUGAWARA, Shogo Yamazoe, Yuichiro Itai
Life of this patent
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Abstract
To provide a silencing structure and a silencing system having a high sound absorbance in a low frequency region. A silencing structure that is installed in a tubular member, the silencing structure includes a cavity portion, an opening portion through which the cavity portion communicates with the tubular member, and a closing portion that closes the cavity portion at a position facing the opening portion, in which a cross-sectional area of the cavity portion on a side of the opening portion is larger than a cross-sectional area of the cavity portion on a side of the closing portion.
Claims20
A silencing structure that is installed in a tubular member, the silencing structure comprising:
- a cavity portion;
- an opening portion through which the cavity portion communicates with the tubular member;
- and
- a closing portion that closes the cavity portion at a position facing the opening portion,
- wherein a cross-sectional area of the cavity portion on a side of the opening portion is larger than a cross-sectional area of the cavity portion on a side of the closing portion, and
- an outer shape of the silencing structure is a square frustum shape, and a porous sound absorbing material is provided in the cavity portion.
Dependencies are inferred from the claim text.