Linear actuator
AssigneeHamilton Sundstrand Corporation
InventorPawel KWASNIEWSKI
Life of this patent
Estimating the term…
Abstract
A linear actuator comprises an actuator housing defining a bore. A drive element is received in the actuator housing bore. The drive element comprises tubular portions receiving first and second ball nuts arranged at respective distal ends thereof. The ball nuts are threaded in opposite directions to one another. The drive element further comprises a drive coupling. The actuator further comprises first and second ball screws operatively engaged with the first and second ball nuts. Rotation of the drive element and thus the ball nuts relative to said ball screws causes the ball screws to move together in a linear path in opposite directions from one another.
Claims15
A linear actuator comprising:
- an actuator housing defining a bore;
- a drive element received in the actuator housing bore, said drive element comprising tubular portions receiving first and second ball nuts arranged at respective distal ends thereof and threaded in opposite directions to one another and further comprising a drive coupling;
- first and second ball screws received within the drive element and operatively engaged with said first and second ball nuts;
- whereby rotation of said drive element and thus of said ball nuts relative to said ball screws causes said ball screws to move together in a linear path in opposite directions from one another.
Dependencies are inferred from the claim text.