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US 12,504,051 B1Granted
Dual-layered graphene-based wet friction material
AssigneeAlto Products Corp.
InventorsJiahui Xu, David Landa, Juncheng Lui, Ray Engel
Life of this patent
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Abstract
A dual-layered graphene-based friction material is a paper matrix that is used as a high friction engagement lining in applications such as clutch plate or wet brake plate linings. The material uses a porous yet elastic fibrous base layer and a top layer containing thermally conductive graphene nanoplatelets mixed with a thermosetting resin. The top layer increases the overall thermal capacity while maintaining sufficient material porosity that allows satisfactory cooling oil flow through the material.
Claims14
A wet friction plate comprising:
- a friction plate member having a first side and a second side;
- a first base layer having a first lower surface attached to the first side of the friction plate member, the first base layer also having a first upper surface, the first base layer being a porous, compressible, and resilient paper matrix member;
- a first top layer deposited atop the first upper surface of the first base layer, the first top layer being formed from a mixture of a resin and an amount of graphene nanoplatelets in the range of 0.5 percent to 2.5 percent based on the first base layer's weight and such that the friction plate member, including the attached first base layer and the first top layer, is disposed and operates within a wet friction environment;
- and
- wherein the first base layer and the first top layer form a two-ply friction material wherein a first ply of the two-ply friction material is the first base layer and a second ply of the two-ply friction material being the first top layer and wherein the first ply and the second ply are structurally non-homogenous as the first base layer is not formed from the mixture.
2 more elements
A wet friction plate comprising:
- a friction plate member having a first side and a second side;
- a first base layer having a first lower surface attached to the first side of the friction plate member, the first base layer also having a first upper surface, the first base layer being a porous, compressible, and resilient paper matrix member;
- a first top layer deposited atop the first upper surface of the first base layer, the first top layer being formed from a mixture of a resin and an amount of graphene nanoplatelets in the range of 0.5 percent to 2.5 percent based on the first base layer's weight and such that the friction plate member, including the attached first base layer and the first top layer, is a wet friction plate member;
- and
- wherein the first base layer and the first top layer form a two-ply friction material wherein a first ply of the two-ply friction material is the first base layer and a second ply of the two-ply friction material being the first top layer and wherein the first ply and the second ply are structurally non-homogenous as the first base layer is not formed from the mixture.
2 more elements
Dependencies are inferred from the claim text.