Torque Transmission Device

摘要

A torque transmission device for starting an internal combustion engine using a permanently engaged starter motor for a start-stop system. An annular gear connected with the starter motor includes a bearing for decoupling the starter motor from the engine based upon the rotational speed difference between the internal combustion engine and the starter motor. The device includes a freewheel for the speed-controlled coupling of the starter motor to the internal combustion engine so that torque is transmitted between the annular gear and the engine crankshaft. An annular gear carrier is arranged between the annular gear and the freewheel. The bearing and the freewheel are arranged radially relative to each other so that at least the freewheel and the bearing are in communication with an oil chamber of the engine. First and second seal elements are provided for sealing the engine oil chamber of the internal combustion engine.

主权项

1. A torque transmission device for starting an internal combustion engine using a starter motor said device comprising: an annular gear cooperatively engaged with the starter motor, a bearing for decoupling the a difference in rotational speed between the internal combustion engine and the starter motor, a freewheel for a speed-controlled coupling of the starter motor to the internal combustion engine such that torque transmission takes place between the annular gear and a crankshaft of the internal combustion engine, and an annular gear carrier arranged between the annular gear and the freewheel, wherein the bearing and the freewheel are arranged radially relative to an engine crankshaft axis such that at least the freewheel and the bearing communicate with an engine oil chamber of the internal combustion engine, and wherein a first sealing element and a second sealing element are provided for sealing the engine oil chamber of the internal combustion engine.