Title:
Sound absorbing material for fuel cell exhaust system, fuel cell exhaust noise reduction method, and fuel cell silencer
Document Type and Number:
Japanese Patent JP6334352
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a sound absorber for an exhaust system of a fuel cell, an exhaust noise reduction method of a fuel cell and a silencer of a fuel cell, hard to deform even under a moisture heat environment, and having an excellent sound absorption effect.SOLUTION: With a fiber structure having permeability in a thickness of 25 mm of 1 cm/cmsec or more, and compression hardness of 1 N or more, a sound absorber for an exhaust system of a fuel cell is obtained.SELECTED DRAWING: None
Inventors:
Takeya Idei
Application Number:
JP2014201021A
Publication Date:
May 30, 2018
Filing Date:
September 30, 2014
Export Citation:
Assignee:
Teijin Frontier Co., Ltd.
International Classes:
F01N1/24; B60L11/18; D04H1/541; D04H3/16; G10K11/16; G10K11/162; H01M8/04
Domestic Patent References:
| JP2013154583A | ||||
| JP2007211769A | ||||
| JP2004156555A | ||||
| JP7197366A |
Foreign References:
| WO2013168699A1 |
Attorney, Agent or Firm:
Taro Tameyama
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