Flight-control actuators having a secondary nut
AssigneeGoodrich Actuation Systems Limited
InventorRaphael Medina
Life of this patent
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Abstract
The invention relates to a flight-control actuator comprising a control screw (1) that engages with a primary nut (2), the actuator also comprising a secondary nut (5) that engages with the control screw in the event the primary nut fails. The primary nut and the secondary nut are remote from one another, the secondary nut moving substantially along a portion of the screw that is usually not fitted with the primary nut.
Claims10
Flight-control actuator comprising a control screw that engages with a primary nut, the actuator also comprising a secondary nut that engages with the control screw in the event of failure of the primary nut, characterised in that the primary nut and the secondary nut are remote from one another and move essentially along two distinct zones of the screw.
Horizontal flight-control actuator, characterised in that it comprises an actuator according to any one of the preceding claims.
Dependencies are inferred from the claim text.