B - Operations – Transporting – 64 – C
Patent
B - Operations, Transporting
64
C
B64C 11/38 (2006.01)
Patent
CA 2105339
A control for a hydraulic propeller pitch actuator includes a low power pilot valve responsive to digital electronic input signals to control movement of a hydraulic servomotor driving a higher power servovalve. Negative feedback motion is delivered from the servomotor to both the pilot valve and the servovalve.
Eick Christopher D.
Powers Paul J.
Williamson John R.
Allied-Signal Inc.
Gowling Lafleur Henderson Llp
Honeywell International Inc.
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