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US 12,492,731 B2Granted
Multiple stiffness brake assembly
AssigneeHoneywell International Inc.
InventorsBrian Shula, William E Pajak
Life of this patent
Estimating the term…
Abstract
In some examples, a brake assembly includes a torque tube supporting a plurality of splines including a first spline and a second spline. The first spline has a first stiffness and the second spline has a second stiffness greater than the first stiffness. The braking system is configured such that, during a braking event and/or other relative motion between the stator disc and the torque tube, the first spline contacts the stator disc prior to the second spline, such that the first spline deflects and/or otherwise deforms before the stator contacts the second spline.
Claims20
A brake assembly comprising:
- a torque tube defining a wheel axis of a wheel, wherein the torque tube comprises a body and is configured to extend through an aperture defined by a stator disc;
- a first spline extending from the body of the torque tube;
- and
- a second spline extending from the body of the torque tube,
- wherein the first spline and the second spline are configured to contact the stator disc to limit rotational movement of the stator disc relative to the torque tube when the torque tube extends through the aperture,
- wherein the first spline has a first stiffness and the second spline has a second stiffness greater than the first stiffness, and
- wherein the first spline is configured to contact the stator disc prior to the second spline contacting the stator disc when the stator disc rotates relative to the torque tube and the torque tube extends through the aperture.
4 more elements
A brake assembly comprising:
- a torque tube defining a wheel axis of a wheel, wherein the torque tube is configured to extend through an aperture defined by a stator disc;
- a compliant spline extending from a body of the torque tube in a first radial direction from the wheel axis of the wheel;
- and
- a stiff spline extending from the body of the torque tube in a second radial direction from the axis of the wheel, wherein the second radial direction is different from the first radial direction,
- wherein the compliant spline and the stiff spline are configured to contact the stator disc to limit rotational movement of the stator disc relative to the torque tube when the torque tube extends through the aperture,
- wherein the compliant spline is configured to contact the stator disc prior to the stiff spline contacting the stator disc when the stator disc rotates relative to the torque tube and the torque tube extends through the aperture,
- wherein the compliant spline is configured to experience a first amount of deflection relative to the torque tube when the compliant spline contacts the stator disc and the stiff spline is configured to experience a second amount of deflection relative to the torque tube when the stiff spline contacts the stator disc, and
- wherein the first amount of deflection is greater than the second amount of deflection.
5 more elements
A method, comprising:
- positioning a torque tube through an aperture defined by a stator disc, the torque tube defining a wheel axis of a wheel and comprising a body, wherein positioning the torque tube through the aperture comprises:
- positioning a first spline in a first stator slot defined by the stator disc, the first spline extending from the body of the torque tube;
- and
- positioning a second spline in a second stator slot defined by the stator disc, the second spline extending from the body of the torque tube,
- wherein the first spline and the second spline are configured to contact the stator disc to limit rotational movement of the stator disc relative to the torque tube when the torque tube extends through the aperture,
- wherein the first spline has a first stiffness and the second spline has a second stiffness greater than the first stiffness, and
- wherein the first spline is configured to contact the stator disc prior to the second spline contacting the stator disc when the stator disc rotates relative to the torque tube and the torque tube extends through the aperture.
4 more elements
Dependencies are inferred from the claim text.