Actuator
AssigneeGoodrich Actuation Systems Limited
InventorsRaphael MEDINA, Rui AMARAL
Life of this patent
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Abstract
There is provided an actuator comprising screw shaft and a nut assembly. The nut assembly comprises a primary nut for transmitting load through the actuator along a primary load path, and a secondary nut for transmitting load through the actuator along a secondary load path. The secondary nut comprises first and second portions movable relative to one another. As load is transmitted through the actuator along the primary load path the secondary nut does not transmit load through the actuator, wherein upon failure of the primary load path the first and second portions move relative to each other, such relative movement causing the first and second portions to engage the screw shaft and enable transmittal of load through the secondary nut of the actuator along the secondary load path.
Claims15
An actuator comprising:
- a screw shaft;
- and
- a nut assembly,
- wherein the nut assembly comprises a primary nut for transmitting load through the actuator along a primary load path, and a secondary nut for transmitting load through the actuator along a secondary load path,
- wherein the secondary nut comprises first and second portions movable relative to one another,
- wherein as load is transmitted through the actuator along the primary load path the secondary nut does not transmit load through the actuator and upon failure of the primary load path the first and second portions move relative to each other, such relative movement causing the first and second portions to engage the screw shaft and enable transmittal of load through the secondary nut of the actuator along the secondary load path.
Dependencies are inferred from the claim text.