The invention relates to a control apparatus for a hydraulic variable-pitch propeller (12) of an aircraft, land vehicle or water vehicle, comprising:a hydraulic oil feed line (24);a control line (16) which can be connected to the variable-pitch propeller (12);a pressure generating device (73) which is connected to the hydraulic oil feed line (24) and provides hydraulic oil with a basic pressure;a servo valve (78) which is arranged downstream of the pressure generating device (73), the input pressure to which servo valve is the basic pressure and the output pressure from which servo valve during normal operation defines a control pressure in the control line (16) and which servo valve is connected to a controller (28) which delivers a control signal for changing the control pressure; andpressure reducing means which are arranged downstream of the servo valve (78) and upstream of the control line (16), which are mechanically actuated and which, in the event of a failure of the servo valve (78), change the control pressure in the control line (16).
VERSTELLPROPELLER-EINHEIT MIT EINER HYDRAULISCHEN STEUERVORRICHTUNG
CONTROLLABLE PITCH PROPELLER UNIT WITH HYDRAULIC CONTROL DEVICE
UNITÉ D'HÉLICE À PAS RÉGLABLE POURVUE D'UN DISPOSITIF DE COMMANDE HYDRAULIQUE
2021-07-28
Patent
Electronic Resource
German
Engineering Index Backfile | 1934
|Treibstoffsparende Verstellpropeller
Automotive engineering | 1980
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