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Impact absorbing blade mounts for variable pitch bladesA variable pitch blade and blade mount are reported that are suitable for propellers, fans and the like and which have improved impact resistance. Composite fan blades and blade mounting arrangements permit the blades to pivot relative to a turbine hub about an axis generally parallel to the centerline of the engine upon impact of a large foreign object, such as a bird. Centrifugal force recovery becomes the principal energy absorbing mechanism and a blade having improved impact strength is obtained.
Document ID
19780002525
Acquisition Source
Legacy CDMS
Document Type
Other - Patent
Authors
Ravenhall, R.
(GE Cincinnati, United States)
Salemme, C. T.
(GE Cincinnati, United States)
Adamson, A. P.
(GE Cincinnati, United States)
Date Acquired
September 3, 2013
Publication Date
September 13, 1977
Subject Category
Mechanical Engineering
Report/Patent Number
Patent Number: US-PATENT-4,047,840
Patent Number: NASA-CASE-LEW-12313-1
Patent Application Number: US-PATENT-APPL-SN-581751
Accession Number
78N10468
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
US-PATENT-4,047,840|NASA-CASE-LEW-12313-1
Patent Application
US-PATENT-APPL-SN-581751
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