Patent ID: 8464852

Claim:
A wet clutch comprising: a main clutch; a clutch basket, which is actively connected to a crankshaft, forming an intake part and having a plurality of discs mounted therein so as to be rotatably fixed to the clutch basket and axially displaceable with respect to the clutch basket; a first clutch hub which is connected to a transmission input shaft, forming an output part and having counter-discs that are layered in an alternating manner with the plurality of discs, wherein the counter-discs are mounted so as to be rotatably fixed to the first clutch hub and axially displaceable with respect to the first clutch hub; a pilot clutch, actuated by means of a lever element and including a second clutch hub; and, a ramp device including: a first ramp ring rotatably fixed to the first clutch hub; a second ramp ring rotatably fixed to the second clutch hub; and, at least one ball disposed between the first and second ramps, in contact with the first and second ramps, and aligned with the plurality of discs in a direction parallel to a rotary axis for the wet clutch, wherein: the pilot clutch is upstream from the main clutch; the pilot clutch and the main clutch are connected to each other by means of the ramp device; the ramp device includes, in the circumferential direction, a plurality of ramps that are active at least in a direction of traction of an internal combustion engine; and, the wet clutch is arranged between a crankshaft of the internal combustion engine and the transmission input shaft of a transmission in a drivetrain.