Nacelle electrical locking system for leading edge of openable panel
A nacelle structure for a gas turbine engine includes an outer nacelle surrounding a fan section and defining an outer boundary of a bypass flow passage and an inner nacelle surrounding a core engine section and defining an inner boundary of the bypass flow passage. A panel of the inner nacelle is moveable between an open position providing access to the core engine section and a closed position. A lock is supported within the inner nacelle proximate the panel. The lock includes an electric actuator for moving a locking pin between a locked position and an unlocked position. The lock prevents opening and limits deflection of the panel when in the locked position.
1. A nacelle structure for a gas turbine engine comprising:
an outer nacelle surrounding a fan section and defining an outer boundary of a bypass flow passage;
an inner nacelle surrounding a core engine section and defining an inner boundary of the bypass flow passage;
a panel of the inner nacelle moveable between an open position providing access to the core engine section and a closed position;
a lock supported within the inner nacelle proximate the panel, the lock including an electric actuator for moving a locking pin between a locked position preventing opening of the panel and an unlocked position;
a blocker mounted to a fixed structure of the core engine section blocking movement of the locking pin when the locking pin is in the locked position, wherein the locking pin is spaced radially apart from the blocker when in the locked position; and
a series of latches providing a latching function for holding the panel in the closed position;
wherein operation of the lock is independent of the latching function.
2. The nacelle structure as recited in claim 1 , wherein the electric actuator comprises a solenoid for moving the pin between the locked and unlocked positions.
3. The nacelle structure as recited in claim 1 , wherein the electric actuator comprises an electric motor for moving the pin between the locked and unlocked positions.
4. The nacelle structure as recited in claim 1 , including a wire harness including a wire for communicating control signals to the lock, the wire extending through a structure extending radially between the inner nacelle and the outer nacelle.
5. The nacelle structure as recited in claim 4 , including a switch mounted remotely from the lock within the outer nacelle.
6. The nacelle structure as recited in claim 5 , wherein the switch comprises a lever which prevents closure of a cowling when the lever is in an unlocked position.
7. The nacelle structure as recited in claim 1 , including a manual override for moving the locking pin from the locked position to the unlocked position without operating the electric actuator.
8. A gas turbine engine comprising:
a fan including a plurality of fan blades rotatable about an axis;
a core engine section including a compressor section, a combustor in fluid communication with the compressor section, and a turbine section in fluid communication with the combustor;
a geared architecture driven by the turbine section for rotating the fan about the axis;
an outer nacelle surrounding a fan section and defining an outer boundary of a bypass flow passage;
an inner nacelle surrounding the core engine section and defining an inner boundary of the bypass flow passage;
a panel of the inner nacelle moveable between an open position providing access to the core engine section and a closed position;
a lock supported within the inner nacelle proximate the panel, the lock including an electric actuator for moving a locking pin between a locked position preventing opening of the panel and an unlocked position;
a blocker mounted to a fixed structure of the core engine section blocking movement of the locking pin in a radial direction when the locking pin is in the locked position, wherein the locking pin is spaced apart from the blocker when the locking pin is in the locked position; and
a series of latches providing a latching function for holding the panel in the closed position;
wherein operation of the lock is independent of the latching function.
9. The gas turbine engine as recited in claim 8 , wherein the electric actuator comprises a solenoid for moving the locking pin between the locked and unlocked positions.
10. The gas turbine engine as recited in claim 8 , wherein the electric actuator comprises an electric motor for moving the locking pin between the locked and unlocked positions.
11. The gas turbine engine as recited in claim 8 , including a wire harness including a wire for communicating control signals to the lock, the wire extending through a structure extending radially between the inner nacelle and the outer nacelle.
12. The gas turbine engine as recited in claim 11 , including a switch mounted remotely from the lock within the outer nacelle.
13. The gas turbine engine as recited in claim 12 , wherein the switch comprises a lever which prevents closure of a cowling when the lever is in an unlocked position.
14. The gas turbine engine as recited in claim 8 , including a manual override for moving the locking pin from the locked position to the unlocked position without operating the electric actuator.