Thrust reverser sleeve lock
First Claim
1. In a thrust reverser for a jet engine having a plurality of anti-deployment mechanisms, at least one of the anti-deployment mechanisms comprising:
- a thrust reverser sleeve lock, the thrust reverser sleeve lock including a lock pin coupled to an actuator for extending and retracting the lock pin between a locked and an unlocked position;
the actuator comprising a single-action actuator having a hydraulic port and a pneumatic port and being actuatable by at least one of pressurized hydraulic fluid and pressurized air; and
wherein the lock pin engages a thrust reverser sleeve of the thrust reverser when the lock pin is in the locked position and prevents the thrust reverser sleeve from moving away from a stowed position.
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Accused Products
Abstract
A thrust reverser system for a jet engine has a thrust reverser sleeve lock, preferably for each thrust reverser sleeve, that provides at least one of the redundant anti-deployment mechanisms of the thrust reverser. The thrust reverser sleeve lock has a lock pin that engages a thrust reverser sleeve when the thrust reverser sleeve is in a stowed position and the thrust reverser sleeve lock is in a lock position to prevent the thrust reverser sleeve from deploying. In an embodiment of the invention, the thrust reverser sleeve lock includes an single-action hydraulically actuated actutor to which the lock pin is affixed, the actuator extending the lock pin through a lock hole in the thrust reverser sleeve when the thrust reverser sleeve is in its stowed position and the thrust reverser sleeve lock is in a lock position.
61 Citations
13 Claims
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1. In a thrust reverser for a jet engine having a plurality of anti-deployment mechanisms, at least one of the anti-deployment mechanisms comprising:
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a thrust reverser sleeve lock, the thrust reverser sleeve lock including a lock pin coupled to an actuator for extending and retracting the lock pin between a locked and an unlocked position;
the actuator comprising a single-action actuator having a hydraulic port and a pneumatic port and being actuatable by at least one of pressurized hydraulic fluid and pressurized air; and
wherein the lock pin engages a thrust reverser sleeve of the thrust reverser when the lock pin is in the locked position and prevents the thrust reverser sleeve from moving away from a stowed position. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A thrust reverser sleeve lock for a thrust reverser sleeve of a thrust reverser, comprising:
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the thrust reverser sleeve having a lock pin hole;
a single-action actuator having a lock pin that extends through the lock pin hole in the thrust reverser sleeve when the thrust reverser sleeve is in a stowed position and the actuator is in a lock position; and
a guide pin fitting affixed to an inner surface of the thrust reverser sleeve, the guide pin fitting having a ramp that moves across the lock pin in contact therewith as the thrust reverser sleeve moves to its stowed position to depress the lock pin away from the thrust reverser sleeve. - View Dependent Claims (9, 10, 11, 12)
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13. A thrust reverser sleeve lock for a thrust reverser sleeve of a thrust reverser, comprising:
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an actuator having a lock pin that, when the actuator is in a locked position, extends through a lock pin hole in the thrust reverser sleeve to lock the thrust reverser sleeve against movement away from a stowed position, and when the actuator is in an unlocked position is retracted from the lock pin hole;
the actuator having a hydraulic port and a pneumatic port and actuated by at least one of a hydraulic pressure and a pneumatic pressure.
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Specification