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US 9,791,025 B2Granted
Ball screw assembly for aircraft brake
AssigneeGoodrich Corporatioln
InventorsDavid Drennen, Kevin Rehfus, Satinder Mann, Robert French, Harald Klode
Life of this patent
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Abstract
A mechanical linear actuator in an aircraft brake may include a ball nut, a ball screw, and an actuator drive unit housing. The ball screw may rotate to drive the ball nut axially. The ball screw and the actuator drive unit housing may form a series of annular raceways. The ball screw may have a first window corresponding to a first raceway and a second window corresponding to a second raceway. Balls may be inserted into the first raceway through the first window and into the second raceway through the second window.
Claims9
A mechanical linear actuator (“MLA”) comprising:
- an actuator drive unit (“ADU”) housing comprising a first ADU annular track and a second ADU annular track;
- and
- a ball screw comprising:
- a first ball screw annular track, wherein the first ADU annular track and the first ball screw annular track form a first annular raceway;
- a second ball screw annular track, wherein the second ADU annular track and the second ball screw annular track form a second annular raceway;
- a first cross-under segment;
- a second cross-under segment;
- a first window in the first cross-under segment corresponding to the first annular raceway;
- and
- a second window in the second cross-under segment corresponding to the second annular raceway.
7 more elements
Dependencies are inferred from the claim text.