Pitch control capacitance coupling
A variable pitch propeller system is described having a stationary side and a rotating side, the rotating side including a plurality of variable pitch propeller blades, as characterized by: first means mounted upon the stationary side for sending control signals to set blade pitch and for receiving position signals relative to the blade pitch; second means mounted upon the rotating side for receiving the control signals and for sending the position signals; and a communications link for carrying the signals between the first and second means, the link having; a high side capacitor having a first plate mounted to the stationary side and electrically attaching to the first means; a low side capacitor having a first plate mounted to the stationary side and attaching electrically to the first means and a second plate mounted to the rotating side and electrically attaching to the second means such that the low side capacitor provides a differential, low potential return path for the control signals from the second means to the first means and the position signals from the first means to the second means.
- Assignee:
- United Technologies Corp., Hartford, CT
- Patent Number(s):
- US 4756667
- OSTI ID:
- 7048778
- Resource Relation:
- Patent File Date: Filed date 6 Jul 1987
- Country of Publication:
- United States
- Language:
- English
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TURBINE BLADES
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TURBOMACHINERY
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COUPLINGS
ELECTRONIC EQUIPMENT
INSTALLATION
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ELECTRICAL EQUIPMENT
EQUIPMENT
MACHINERY
320303* - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Equipment & Processes