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US 8,573,369 B2Granted
Methods and brake disc assemblies to increase the use of friction material
AssigneeHoneywell International Inc.
InventorsAnthony Scelsi, Todd M. Menzie
Life of this patent
Estimating the term…
Abstract
Methods and brake disc assemblies are disclosed to increase the use of friction material. A disclosed example carbon composite brake disc includes a generally annular body having an opening, an outer axial surface, an inner axial surface, a disc thickness extending radially between the outer axial surface and the inner axial surface, and at least one ring extending radially from the outer axial surface to define an outer diameter of the carbon composite brake disc.
Claims18
A carbon composite brake disc comprising:
- a generally annular body having an opening, an outer axial surface, an inner axial surface, a disc thickness extending axially at locations between the outer axial surface and the inner axial surface, and at least one ring extending radially from the outer axial surface to define an outermost diameter of the carbon composite brake disc, wherein the at least one ring defines a width in the direction of the disc thickness smaller than the disc thickness, wherein:
- the at least one ring defines the outermost diameter of the carbon composite brake disc by a radially extended axial surface that projects radially away from the outer axial surface of the carbon composite brake disc and is joined to the outer axial surface by at least one curved surface, and
- an outer diameter of the carbon composite brake disc, as defined at the outer axial surface of the carbon composite brake disc, excluding the portions forming the at least one ring and the at least one curved surface, is configured to remain constant between a first, unworn state and a second, fully worn state.
A braking mechanism comprising:
- a carbon composite stator brake disc;
- and
- a carbon composite rotor brake disc, wherein the stator brake disc comprises a ring of friction material extending radially from an outer axial surface of the carbon composite stator brake disc, the ring providing friction material mass to absorb thermal energy created during braking and defining a ring width in a direction of a disc thickness of the carbon composite stator brake disc smaller than the disc thickness, wherein:
- the ring defines an outermost diameter of the carbon composite stator brake disc by a radially extended axial surface that projects radially away from the outer axial surface of the carbon composite stator brake disc and is joined to the outer axial surface of the carbon composite stator brake disc by at least one curved surface of the carbon composite stator brake disc, and
- an outer diameter of the carbon composite stator brake disc, as defined at the outer axial surface of the carbon composite stator brake disc, excluding the portions forming the ring and the at least one curved surface of the carbon composite stator brake disc, is configured to remain constant between a first, unworn state and a second, fully worn state.
2 more elements
A braking method comprising:
- axially compressing a carbon composite stator brake disc and a carbon composite rotor brake disc during rotation of the carbon composite rotor brake disc to decrease the rotation of the carbon composite rotor brake disc, wherein the carbon composite stator brake disc comprises a ring of friction material extending from an outer axial surface of the carbon composite stator brake disc, the ring defining a ring width in a direction of a stator disc thickness of the stator brake disc, the ring width being smaller than the stator disc thickness, and the ring providing friction material mass to absorb thermal energy created during the compression of the brake disc, wherein:
- the ring defines an outermost diameter of the carbon composite stator brake disc by a radially extended axial surface that projects radially away from the outer axial surface of the carbon composite stator brake disc and is joined to the outer axial surface by at least one curved surface of the carbon composite stator brake disc, and
- an outer diameter of the carbon composite stator brake disc, as defined at the outer axial surface of the carbon composite stator brake disc, excluding the portions of the ring of friction material and the at least one curved surface of the carbon composite stator brake disc, is configured to remain constant between a first, unworn state and a second, fully worn state.
Dependencies are inferred from the claim text.