Friction lining for wet clutch
View Patent ↗A friction lining for a wet clutch, in particular for a converter lockup, the clutch containing the ingredients—cellulose fibers, aramid fibers, fillers and a bonding agent. To provide a cost-effective friction lining suitable for the application under the conditions of a converter lockup clutch, it is proposed to admix powdered nutshell of percentage weight between 1% and 40%.
1. A friction lining for a wet clutch consisting essentially of cellulose fibers, aramid fibers, fillers and a bonding agent, wherein the friction lining is provided with powdered nutshells of a percentage weight between 1% and 40%, wherein the bonding agent is a phenol resin add-on with a percentage weight between 15% and 40%, wherein the percentage weight of the cellulose fibers is 30% and 60%, wherein the percentage weight of the aramid fibers is 10% to 20%, wherein the powdered nutshells are coconut shells.
2. The friction lining as recited in claim 1 wherein the aramid fibers feature a CSF-value between 550 and 650.
3. The friction lining as recited in claim 1 wherein the wet clutch is part of a converter lockup clutch.
4. The friction lining as recited in claim 1 wherein the fillers are amorphized silicon dioxide with a percentage weight between 15% and 45%, silicon carbide with a percentage weight less than or equal to 2%, and/or zeolite with a percentage weight between 5% and 10%.
5. A friction lining for a wet clutch comprising cellulose fibers, aramid fibers, fillers and a bonding agent, wherein the bonding agent is a phenol resin add-on with a percentage weight between 15% and 40%, wherein the percentage weight of the cellulose fibers is 30% and 60%, wherein the percentage weight of the aramid fibers is 10% to 20%, wherein the fillers are amorphized silicon dioxide with a percentage weight between 15% and 45%, silicon carbide with a percentage weight less than or equal to 2%, and zeolite with a percentage weight between 5% and 10%.
6. The friction lining as recited in claim 5 further comprising powdered nutshells of a percentage weight between 1% and 40%.
7. The friction lining as recited in claim 5 wherein the silicon carbide has a percentage weight of 0.5% to 1% and the zeolite has a percentage weight of 6% to 10%.
8. The friction lining as recited in claim 5 wherein the amorphized silicon dioxide is diatomaceous earth and the aramid fibers have a percentage weight of 15%, the cellulose fibers have a percentage weight of 44%, the diatomaceous earth has a percentage weight of 30%, the zeolite has a percentage weight of 9%, the silicon carbide has a percentage weight of 1% and the phenolic resin add-on has a percentage weight of 33%.
9. A friction lining for a wet clutch comprising the following percentage weights:
11% to 12% aramid fibers,
33% to 34% cellulose fibers,
15% to 16% amorphous silicon dioxide,
15% to 16% powdered coconut shells, and
24% to 25% phenol resin.
10. A friction lining for a wet clutch comprising the following percentage weights:
11% to 12% aramid fibers,
33% to 34% cellulose fibers,
22% to 23% amorphous silicon dioxide,
7% to 8% powdered coconut shells, and
24% to 25% phenol resin.