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Title:
DUCT AND ION GENERATION UNIT
Document Type and Number:
Japanese Patent JP2023044374
Kind Code:
A
Abstract:
To curb a cost required for damping noise in a duct.SOLUTION: A duct 16 comprises: a bent section 20 formed by bending a flow passage 18 leading ions from an ion generation device 14 to an air-conditioning duct 10; and resonance type noise dampers 30, 32 and 34 with communication ports 30a, 32a and 34a thereof respectively communicated with the flow passage 18. The communication ports 30a, 32a and 34a of the noise dampers 30, 32 and 34 are arranged at a downstream side of a region other than an outer side of a bend of the bent section 20.SELECTED DRAWING: Figure 2

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Inventors:
TANGE KATSUHIRO
SUGIMOTO HIROKI
SASAZAWA KAZUYA
Application Number:
JP2021152373A
Publication Date:
March 30, 2023
Filing Date:
September 17, 2021
Export Citation:
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Assignee:
INOUE MTP KK
International Classes:
F24F13/02; B60H3/06; F24F8/30; F24F13/24
Attorney, Agent or Firm:
Eguchi Moto
Hisanao Taga



 
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