Title:
VENTILATION PATH SILENCER
Document Type and Number:
WIPO Patent Application WO/2023/032618
Kind Code:
A1
Abstract:
The present invention effectively dampens wide-band sounds although the structure of a ventilation path silencer is compact. This ventilation path silencer is provided with a housing, and dampens sounds in a ventilation path, the internal space of the housing constitutes a portion of the ventilation path, and the ventilation path silencer is provided with an inlet opening located on one end side of the portion of the ventilation path in the housing, an outlet opening located on the other end side of the portion of the ventilation path in the housing, a sound-absorbing member housed within the housing, and a vibration part provided in the housing in order to reduce sounds passing through the ventilation path.
Inventors:
HAKUTA SHINYA (JP)
YAMAZOE SHOGO (JP)
SUGAWARA YOSHIHIRO (JP)
ITAI YUICHIRO (JP)
YAMAZOE SHOGO (JP)
SUGAWARA YOSHIHIRO (JP)
ITAI YUICHIRO (JP)
Application Number:
PCT/JP2022/030476
Publication Date:
March 09, 2023
Filing Date:
August 09, 2022
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
G10K11/16; F16L55/033; F24F13/02; G10K11/172
Domestic Patent References:
| WO2019074061A1 | 2019-04-18 |
Foreign References:
| JP2010111347A | 2010-05-20 | |||
| JP2009198902A | 2009-09-03 | |||
| JP2010116118A | 2010-05-27 | |||
| JP2016133226A | 2016-07-25 |
Attorney, Agent or Firm:
ITOH Hideaki et al. (JP)
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