Brake assembly with disks of variable thickness and methods for disk reuse

Patent metadata

Field	Value
Publication number	US-10724591-B2
Application number	US-201715822353-A
Country	US
Kind code	B2
Filing date	Nov 27, 2017
Priority date	Nov 27, 2017
Publication date	Jul 28, 2020
Grant date	Jul 28, 2020

Abstract

A method of making a brake assembly using recycled friction disks may comprise removing a first friction disk from a worn brake assembly, removing a portion of the first friction disk to reduce a thickness of the first friction disk, and incorporating a previously unused friction disk and the first friction disk into a brake assembly comprising unworn rotor disks made of a first material. The previously unused friction disk and the first friction disk may comprise a second material different from the first material. The thickness of the first friction disk may be different from a thickness of the previously unused friction disk.

First claim

What is claimed is:

1. A method of reusing a friction disk over multiple brake assembly wear cycles, comprising:
forming a first brake assembly by:
locating a first stator between a first rotor of the first brake assembly and a second rotor of the first brake assembly, the first stator comprising a first material, wherein the first rotor of the first brake assembly and the second rotor of the first brake assembly comprise a second material different from the first material, and wherein the first stator comprises a first previously unused stator, and
locating a second stator having a thickness different from a thickness of the first stator between the second rotor of the first brake assembly and a third rotor of the first brake assembly, the second stator comprising the first material;

removing the first stator and the second stator from the first brake assembly, after a wear cycle of the first brake assembly; and
forming a second brake assembly after the wear cycle of the first brake assembly, wherein forming the second brake assembly comprises:
locating a third stator between a first rotor of the second brake assembly and a second rotor of the second brake assembly, wherein the third stator comprises a second previously unused stator, and
incorporating at least one of the first stator or the second stator from the first brake assembly into a pressure plate of the second brake assembly.

2. The method of claim 1 , further comprising removing a first portion of at least one of the first stator or the second stator prior to forming the second brake assembly.

3. The method of claim 2 , further comprising:
removing the at least one of the first stator or the second stator from the second brake assembly after a wear cycle of the second brake assembly; and
forming a third brake assembly by:
locating a fourth stator between a first rotor of the third brake assembly and a second rotor of the third brake assembly, wherein the fourth stator comprises a third previously unused stator, and
incorporating the third stator into the third brake assembly.

4. The method of claim 3 , wherein the incorporating the third stator into the third brake assembly comprises locating the third stator between the second rotor of the third brake assembly and a third rotor of the third brake assembly.

5. The method of claim 3 , wherein the incorporating the third stator into the third brake assembly comprises using the third stator as at least one of a pressure plate of the third brake assembly or an end plate of the third brake assembly.

6. The method of claim 3 , further comprising:
removing the at least one of the first stator or the second stator from the second brake assembly after the wear cycle of the second brake assembly;
removing a second portion at least one of the first stator or the second stator after the removing the at least one of the first stator or the second stator from the second brake assembly; and
incorporating the at least one of the first stator or the second stator from the second brake assembly into the third brake assembly.

7. The method of claim 1 , wherein the first material comprises a ceramic matrix composite material.

8. The method of claim 7 , wherein the second material comprises a carbon fiber-reinforced/carbon matrix composite material.

9. A method of making a brake assembly using recycled friction disks, comprising
removing a first friction disk comprising a first material from a worn brake assembly, the worn brake assembly comprising a second friction disk, wherein the second friction disk comprises a second material different from the first material;
removing a portion of the first friction disk to reduce a thickness of the first friction disk; and
incorporating a previously unused friction disk, a third friction disk, and the first friction disk from the worn brake assembly into an unworn brake assembly, wherein the previously unused friction disk and the third friction disk comprise the first material, and wherein the thickness of the first friction disk is different from a thickness of the previously unused friction disk and from a thickness of the third friction disk, wherein the incorporating the first friction disk from the worn brake assembly into the unworn brake assembly comprises using the first friction disk as at least one of a pressure plate or an end plate of the unworn brake assembly.

10. The method of claim 9 , wherein the first friction disk, the previously unused friction disk, and the third friction disk comprise non-rotating components of unworn brake assembly.

11. The method of claim 10 , wherein the first material comprises a ceramic matrix composite material, and wherein the second material comprises a carbon fiber-reinforced/carbon material composite material.

12. The method of claim 9 , wherein the incorporating the previously unused friction disk, the third friction disk, and the first friction disk from the worn brake assembly into the unworn brake assembly comprises interleaving a plurality of rotors of approximately equal thickness between the previously unused friction disk, the third friction disk, and the first friction disk from the worn brake assembly between.

Assignees

• Goodrich Corp

Inventors

• O'Neil Matthew R
• Riebe Gary C

Classifications

• F16D55/40 Primary

  actuated by a fluid-pressure device arranged in or one the brake · CPC title

• F16D2055/0095

  Plural rotors with different properties, e.g. to influence working conditions like wear or temperature · CPC title

• F16D2055/0058

  Fully lined, i.e. braking surface extending over the entire disc circumference · CPC title

• F16D65/127

  characterised by properties of the disc surface; Discs lined with friction material · CPC title

• F16D2250/0084

  Assembly or disassembly · CPC title