Abstract: A torque limiter includes a first ring adapted to be fixed to a flywheel and being driven to rotate about a rotation axis, a second ring a certain distance from the first ring, and a compression ring between the first ring and the second ring. A friction disc is slidably sandwiched between the second ring and pressure ring, and a spring washer is arranged between the first ring and pressure ring, the pressure ring receiving a pressing force from the spring washer and pressing the friction disc against the second ring. The first and second ring are integrally formed, the first ring provided with first teeth, the spring washer provided with support teeth, and each support tooth is supported by one first tooth. A transmission system includes the above-described torque limiter.

Abstract: A powertrain mechanism comprising a carrier plate connected to the crankshaft, a drive plate connected to the gearbox shaft and at least one spring positioned between at least one first spring housing provided on the carrier plate and at least one spring housing provided on the drive plate, in order to transfer the torque, obtained from the crankshaft, to the gearbox shaft in vehicles having internal combustion engine.

Abstract: A powertrain mechanism comprising a carrier plate facing the engine side, a fixation plate facing the gearbox side, a drive plate positioned between said plates and provided such that there is a partial rotation freedom with respect to these plates, for transferring the power, received from the engine, to the gearbox, in vehicles having at least internal combustion engine, characterized by comprising at least one third friction element seating onto at least one friction region provided on one of said plates after being positioned between the carrier plate or fixation plate and drive plate, at least one connection plate fixing said third friction element to the friction region in order to keep a distance between the third friction element and the opposite plate, and at least one drive leg placed into at least one drive housing provided on the opposite plate by extending from the third friction element towards the opposite plate.

Abstract: A powertrain mechanism comprising a carrier plate connected to the crankshaft, a drive plate connected to the gearbox shaft and at least one spring positioned between at least one first spring housing provided on the carrier plate and at least one spring housing provided on the drive plate, in order to transfer the torque, obtained from the crankshaft, to the gearbox shaft in vehicles having internal combustion engine.