APPARATUS AND METHOD FOR AIRCRAFT PROPELLER CONTROL

APPARATUS AND METHOD FOR AIRCRAFT PROPELLER CONTROL

An aircraft propeller control system for an aircraft propeller (30) with adjustable blade angle has a blade angle feedback ring (104) and a sensor (112), one of which is mounted for rotation with the propeller. The blade angle feedback ring (104) moves longitudinally along with adjustment of the bla...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: JARVO, James Robert, YAKOBOV, Ella
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
AEROPLANES
AIRCRAFT
AVIATION
COSMONAUTICS
HELICOPTERS
PERFORMING OPERATIONS
TRANSPORTING
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Beschreibung
Zusammenfassung:An aircraft propeller control system for an aircraft propeller (30) with adjustable blade angle has a blade angle feedback ring (104) and a sensor (112), one of which is mounted for rotation with the propeller. The blade angle feedback ring (104) moves longitudinally along with adjustment of the blade angle and has position markers (102) circumferentially spaced apart at distances that vary along a longitudinal axis. The sensor (112) is positioned adjacent the feedback ring (104) for producing signals indicative of passage of the position markers (102). Intervals between signals are indicative of circumferential distances between position markers (102). A controller (115) measures longitudinal position of the feedback ring (104) based on the intervals and is configured to produce a warning signal if the longitudinal position is outside a first threshold range.