A power drive unit (PDU) for moving cargo relative to a cargo bay (152) of an aircraft (150) includes a cam shaft (109). The PDU also includes a lift cam (108) coupled to the cam shaft and configured to cause the PDU to be in at least one of a raised position or a lowered position based on rotation of the cam shaft. The PDU also includes a permanent magnet motor (102) configured to generate a cogging torque sufficient to resist rotation of the cam shaft such that the PDU remains in the raised position in response to power being removed from the permanent magnet motor.
LIFT AND HOLD DIFFERENTIAL LIFT PDU UTILIZING A PERMANENT MAGNET ROTOR
HEBE- UND HALTEDIFFERENTIALAUFZUGS-PDU MIT EINEM PERMANENTMAGNETROTOR
BLOC DIFFÉRENTIEL D'ENTRAÎNEMENT DE LEVAGE ET DE RETENUE D'UN ROTOR À AIMANT PERMANENT
2019-01-02
Patent
Elektronische Ressource
Englisch
IPC: | B65G TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS , Transport- oder Lagervorrichtungen, z.B. Förderer zum Laden oder Abladen / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / F16H Getriebe , GEARING / H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES |
LIFT AND HOLD DIFFERENTIAL LIFT PDU UTILIZING A PERMANENT MAGNET ROTOR
Europäisches Patentamt | 2017
|Lift and hold differential lift PDU utilizing a permanent magnet rotor
Europäisches Patentamt | 2018
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