Title:
The fluid discharge oscillating attenuation strip of sound protection of airplane turbo machinery fan casing
Document Type and Number:
Japanese Patent JP6042905
Kind Code:
B2
Abstract:
An acoustic protection device for a fan casing of an aircraft turbomachine, including an acoustic protection panel forming a ferrule sector centered on a center axis, and one or more vibration damping strips pressed on a first side to an external surface of the panel and on a second side to an internal surface of the casing, each damping strip including two opposite edges each including an upstream end and a downstream end spaced from each other along a direction of the center axis. At least one of both opposite edges of at least one of the damping strips is shaped such that liquid present on this edge can flow by gravity towards either or both of its upstream and downstream ends.
Inventors:
Luffy, Guillaume
Trang, Julian
Trang, Julian
Application Number:
JP2014546618A
Publication Date:
December 14, 2016
Filing Date:
December 14, 2012
Export Citation:
Assignee:
SNECMA
International Classes:
F01D25/32; F02C7/00; F02C7/24; F02K3/06
Domestic Patent References:
| JP56098534A | ||||
| JP63009401U |
Foreign References:
| US3542152 |
Attorney, Agent or Firm:
Kawaguchi International Patent Office
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