Fluid reaction surfaces (i.e. – impellers) – Having positive means for impeller adjustment – Power or manual actuator on non-rotatable part
Patent
1990-07-09
1992-10-20
Look, Edward K.
Fluid reaction surfaces (i.e., impellers)
Having positive means for impeller adjustment
Power or manual actuator on non-rotatable part
416129, B64C 1132
Patent
active
051566486
ABSTRACT:
The invention concerns pitch-change mechanisms, of the planetary gear type, for use in aircraft propellers. Planet gears engage three ring gears at different gear ratios, thereby causing relative rotation of the ring gears to occur when the planet gears rotate. A linkage between the ring gears and the propeller blades converts the relative rotation into a change in pitch. A sun gear drives the planet gears. A planet carrier prevents excessive skew of the planets from occurring if one of the ring gears should break, and thereby release its load on the planet gear.
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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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