A wet multi-plate clutch comprising a first friction plate including a first carrier element with a first carrier element thickness, wherein the first friction plate further includes a first friction pad attached thereto, wherein the friction pad includes friction pad segments, between which parallel fluid channels are formed, wherein the first friction pad includes a first friction pad thickness, wherein the ratio of the friction pad thickness to the first carrier element thickness is between 0.25 and 0.85, and a second friction plate including a second carrier element with a second carrier element thickness.

A vehicle brake pad includes a back plate layer, an underlayer, an adhesive layer that mediates between the back plate layer and the underlayer, and a friction material layer, wherein the vehicle brake pad does not include a shim and wherein at least one of the back plate layer, the adhesive layer, and the underlayer has a loss factor of 0.2 or higher, calculated according to the following Equation 1, at temperatures from 100 to 300 to damp noise of a frequency range of 200 to 20,000 Hz at temperatures from 100 to 300: (Equation 1) Loss factor =(f.sub.2f.sub.1)/f.sub.0, where is a loss factor, f.sub.0 is a noise frequency, f.sub.1 is a minimum value of amplitude of a noise frequency when a noise level is reduced by 3 dB, and f.sub.2 a maximum value of amplitude when the noise level is reduced by 3 dB.

A clutch friction material includes a base material containing a rubber material and a thermosetting resin. The clutch friction material also includes an intermediate layer disposed on the base material. The intermediate layer includes either a glassy carbon structure or a graphite structure formed as a result of thermal curing of the thermosetting resin contained in the base material. In addition, the clutch friction material includes an outermost surface layer disposed on the intermediate layer. The outermost surface layer contains a pyrolysate produced as a result of pyrolysis of rubber and resin components contained in the base material.

A friction material for a clutch pad, including a fiber material and a filler material. The fiber material includes a first surface, a second surface opposite the first surface and a thickness between the first and second surfaces. The filler material includes tung oil and phenolic resin. The tung oil is saturated within the fiber material from the first surface through a first portion of the thickness, while the phenolic resin is saturated within the fiber material from the second surface through a second portion of the thickness.

A coating, in particular a coating for a back side of a brake pad opposite a braking side, includes a pair of bonding layers and a composite layer. Each of the bonding layers includes an epoxy material. The composite layer is disposed between the pair of bonding layers, and includes a mixture of a rubber material and particles of a secondary material. A method for forming the coating includes coating a layer of epoxy onto the surface to be coated to form a first bonding layer, coating the mixture of the rubber material and particles of a secondary material onto the first bonding layer to form a composite layer, coating a layer of epoxy to the composite layer to form a second bonding layer, and then curing the coating via a curing process.

A method of assembling a brake pad includes impaling a first layer of a preformed multi-layer friction pad on piercing members of a rotor facing surface of a brake pad backing plate. A shim is concurrently assembled to a caliper facing surface of the backing plate.

The present disclosure includes carbon-carbon composite articles having oxidation protection coatings for limiting thermal and catalytic oxidation reactions and methods for applying oxidation protection coatings to carbon-carbon composite articles.

A coating, in particular a coating for a back side of a brake pad opposite a braking side, includes a pair of bonding layers and a composite layer. Each of the bonding layers includes an epoxy material. The composite layer is disposed between the pair of bonding layers, and includes a mixture of a rubber material and particles of a secondary material. A method for forming the coating includes coating a layer of epoxy onto the surface to be coated to form a first bonding layer, coating the mixture of the rubber material and particles of a secondary material onto the first bonding layer to form a composite layer, coating a layer of epoxy to the composite layer to form a second bonding layer, and then curing the coating via a curing process.

A method of assembling a brake pad includes impaling a first layer of a preformed multi-layer friction pad on piercing members of a rotor facing surface of a brake pad backing plate. A shim is concurrently assembled to a caliper facing surface of the backing plate.

A friction engagement device of an automatic transmission is provided, which includes a rotational member comprised of at least one of a drum member and a hub member including a spline part engaged with a friction plate to be movable in axial directions of the automatic transmission, and a drive force transmitting part for exchanging a drive force with another rotational element. The drive force transmitting part of the rotational member is made of a ferrous metal. A part of the rotational member other than the drive force transmitting part is made of a clad material containing a first material that is easily joined to the ferrous metal and a second material that is less easily joined to the ferrous metal compared to the first material and weighs less than the ferrous metal.