VENTILATION-TYPE SILENCER

WIPO Patent Application WO/2024/084881

A1

Provided is a ventilation-type silencer comprising an expanded part constituted by a housing made of a resin, the ventilation-type silencer being capable of inhibiting the occurrence of condensation in a back surface space while inhibiting the size thereof from being increased.　The ventilation-type silencer comprising: an inlet-side ventilation pipe; an expanded part that communicates with the inlet-side ventilation pipe and has a larger cross-sectional area than the inlet-side ventilation pipe; and an outlet-side ventilation pipe that communicates with the expanded part and has a smaller cross-sectional area than the expanded part, the ventilation-type silencer further comprising a housing that is made of a resin and constitutes the expanded part, a flow path wall that is disposed in the housing, communicates the inlet-side ventilation pipe with the outlet-side ventilation pipe, and is constituted by a first portion of the housing and a porous sound absorbing material, a back surface space that is located on a side opposite from a flow path space within the flow path wall, sandwiching the porous sound absorbing material, and is demarcated by the porous sound absorbing material and a second portion different from the first portion of the housing, and a heat transfer member that thermally connects the first portion and the second portion and has a higher thermal conductivity than the housing.

YAMAZOE SHOGO (JP)
ISHIGE SHUN (JP)
TAKAHASHI TOMOHIRO (JP)
ITAI YUICHIRO (JP)
HAKUTA SHINYA (JP)

PCT/JP2023/034079

April 25, 2024

September 20, 2023

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FUJIFILM CORP (JP)

G10K11/16

JP2014202445A	2014-10-27
JPH03124910A	1991-05-28

ITOH Hideaki et al. (JP)

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