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US 8,944,368 B2Granted
Aircraft steering actuator
AssigneeAirbus Operations GmbH
InventorsNicholas Elliot, Arnaud Didey
Life of this patent
Estimating the term…
Abstract
An aircraft steering actuator has a driving shaft for connection to a drive source, the driving shaft defining a first axis, and a driven shaft for substantially perpendicular connection to a landing gear axle of an aircraft, the driven shaft defining a driven axis substantially perpendicular to the first axis, in which the driving shaft and driven shaft are connected in driving engagement by a ball-worm gear.
Claims10
An aircraft nose landing gear comprising,
- a cylindrical casing connected to an aircraft and defining a vertical steering axis;
- a vertical strut comprising a strut member being rotatably disposed in the cylindrical casing for rotation about the vertical steering axis;
- a wheel assembly connected to the strut member, the wheel assembly comprising a plurality of wheels rotatable about a horizontal wheel axis;
- a steering actuator comprising:
- an electric motor mounted to the cylindrical casing, the electric motor having an output shaft rotating on a horizontal axis;
- and,
- a ball-worm gear comprising a driving shaft defining a concave ball race receiving art of a driven shaft wherein the output shaft of the electric motor drives the driving shaft of the ball-worm gear, and wherein the driven shaft of the ball-worm gear drives the strut member;
- in which the driving shaft and the driven shaft are directly connected in driving engagement through an opening on the cylindrical casing.
5 more elements
Dependencies are inferred from the claim text.