Title:
META-MUFFLER OF STEALTH WING STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2022/092629
Kind Code:
A1
Abstract:
The present invention provides a meta-muffler which is capable of increasing a transmission loss of the noise flowing in a flow tube by maximizing a loss in sound energy of the noise introduced in a resonance chamber due to a stealth wing structure that can be acoustically stealthy like wings of an owl. To this end, the present invention is characterized in comprising: a flow tube in which a fluid flows; an outer shell which is arranged outside the flow tube and is spaced apart from the flow tube; a barrier wall extending from the flow tube to the outer shell; a blade, of which one end portion extends from the flow tube and the other end portion is arranged to be spaced apart from the barrier wall, and which is formed convex toward the flowing direction; and a resonance chamber provided with an opening, through which the fluid is introduced, between the barrier wall and the other end portion of the blade, and having an internal space formed by the blade, the barrier wall, and the flow tube.
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Inventors:
LEE GYEONG JU (KR)
LEE JIN WOO (KR)
LEE HAK JOO (KR)
LEE JIN WOO (KR)
LEE HAK JOO (KR)
Application Number:
PCT/KR2021/014160
Publication Date:
May 05, 2022
Filing Date:
October 14, 2021
Export Citation:
Assignee:
CT ADVANCED META MAT (KR)
UNIV AJOU IND ACADEMIC COOP FOUND (KR)
UNIV AJOU IND ACADEMIC COOP FOUND (KR)
International Classes:
F02M35/12; F01N1/02
Foreign References:
| KR20170025511A | 2017-03-08 | |||
| KR102140002B1 | 2020-08-03 | |||
| KR20160026051A | 2016-03-09 | |||
| KR20060110744A | 2006-10-25 | |||
| US20100282538A1 | 2010-11-11 |
Attorney, Agent or Firm:
KIM, Tae Wan (KR)
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