Title:
SHROUD
Document Type and Number:
Japanese Patent JP2023159382
Kind Code:
A
Abstract:
To provide a noise reduction shroud for an aircraft configured to at least partially enclose a noise source including a propeller.SOLUTION: A shroud 100 includes an outer layer 102 and two or more sound absorbing materials (material layers 306 and 308) located inside the shroud. The outer layer includes recesses 302 located and sized to transmit noise from a noise source (propeller 202) to the interior of the shroud and/or to partially enclose at least a portion of a blade tip of at least one propeller blade.SELECTED DRAWING: Figure 2
Inventors:
SAMUEL SEAMUS ROWE
MATTHEW ROWE
AIDAN CLARKE
MATTHEW ROWE
AIDAN CLARKE
Application Number:
JP2023137224A
Publication Date:
October 31, 2023
Filing Date:
August 25, 2023
Export Citation:
Assignee:
DOTTEREL TECH LTD
International Classes:
G10K11/16; B64U10/20; B64U30/26; B64U50/19; G10K11/168
Attorney, Agent or Firm:
Shigeki Yamakawa
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