Electrical thrust reverser tertiary lock system including a voltage limiting circuit
AssigneeHoneywell International Inc.
InventorTerry L Ahrendt
Life of this patent
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Abstract
A system for moving an aircraft thrust reverser component includes a power drive unit, a thrust reverser actuator assembly, and a tertiary lock system. The power drive unit is operable to rotate and supply a rotational drive force. The thrust reverser actuator assembly receives the rotational drive force from the power drive unit and moves the thrust reverser component between a stowed position and a deployed position. The tertiary lock system selectively engages and disengages the thrust reverser component and includes a tertiary lock power unit, an electromechanical tertiary lock assembly, and a voltage limiting circuit. The voltage limiting circuit limits the voltage magnitude of a control signal supplied to the tertiary lock assembly to a predetermined value.
Claims29
A system for moving an aircraft thrust reverser component, comprising:
- a power drive unit operable to rotate and thereby supply a rotational drive force;
- a thrust reverser actuator assembly coupled to receive the rotational drive force and operable, in response thereto, to selectively move the thrust reverser component between a stowed position and a deployed position;
- and
- a tertiary lock system configured to selectively engage and disengage the thrust reverser component to thereby prevent and allow movement thereof, respectively, the tertiary lock system including:
- a tertiary lock power unit configured to selectively receive an AC tertiary lock release command signal and operable, upon receipt thereof, to supply a DC lock release command signal;
- an electromechanical tertiary lock assembly adapted to receive a DC tertiary lock control signal and configured, upon receipt thereof, to move between a locked position and an unlocked position;
- and
- a voltage limiting circuit coupled between the tertiary lock power unit and the electromechanical tertiary lock assembly, the voltage limiting circuit coupled to receive the DC lock release command signal from the tertiary lock power unit and operable, upon receipt thereof, to supply the DC tertiary lock control signal to the electromechanical tertiary lock assembly, the DC tertiary lock control signal having a voltage magnitude that is limited to a predetermined value.
An aircraft thrust reverser tertiary lock system, comprising:
- a tertiary lock power unit configured to selectively receive an AC tertiary lock release command signal and operable, upon receipt thereof, to supply a DC lock release command signal;
- an electromechanical tertiary lock assembly adapted to receive a DC tertiary lock control signal and configured, upon receipt thereof, to move between a locked position and an unlocked position;
- and
- a voltage limiting circuit coupled between the tertiary lock power unit and the electromechanical tertiary lock assembly, the voltage limiting circuit coupled to receive the DC lock release command signal from the tertiary lock power unit and operable, upon receipt thereof, to supply the DC tertiary lock control signal to the electromechanical tertiary lock assembly, the DC tertiary lock control signal having a voltage magnitude that is limited to a predetermined value.
An aircraft thrust reverser tertiary lock system, comprising:
- a lock movable between a locked position and an unlocked position;
- a voltage limiting circuit adapted to receive a DC lock release command signal and operable, in response thereto, to supply a DC tertiary lock control signal, the DC tertiary lock control signal having a voltage magnitude that is limited to a predetermined value;
- a DC motor coupled to receive the DC tertiary lock control signal and operable, in response thereto, to supply a lock release drive force;
- and
- a tertiary lock actuator coupled to receive the lock release drive force from the DC motor and operable, in response thereto, to move the lock to the unlocked position.
Dependencies are inferred from the claim text.