Fluid reaction surfaces (i.e. – impellers) – Plural impellers having relative movement or independent... – Coaxial rotation
Patent
1990-07-23
1992-10-13
Look, Edward K.
Fluid reaction surfaces (i.e., impellers)
Plural impellers having relative movement or independent...
Coaxial rotation
416130, 416160, B64C 1148
Patent
active
051545802
ABSTRACT:
The invention relates to pitch-change systems for aircraft propfans of the counterrotating type. The pitch of each propfan stage is independently adjustable. Further, in the case where one of the propfan stages acts as a rotating obstacle for a mechanism which causes pitch change of the other stage, a system is provided which transfers the pitch-change torque through this obstacle-stage without being affected by the speed of the obstacle-stage.
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Article-"A New Design for a Contra-Prop"-Aeronautical Engineering.
General Electric Company
Larson James A.
Look Edward K.
Rafter John R.
Squillaro Jerome C.
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