| 摘要 |
<p>A lock-up torque converter (1) for automatic transmissions which transmits the torque of an internal combustion engine from the engine crankshaft (10) to the transmission input shaft (20) is disclosed. The torque converter includes a converter cover (3), a turbine hub (7) receiving the input shaft (20) to provide a driving connection, a clutch piston (30) slidably mounted on the turbine hub (7), and a turbine runner (5) having the outer shell drivingly connected to the hub (7). The torque converter (1) comprises a first torsional damper (32) operably connected between the clutch piston (30) and the turbine hub (7) to provide a driving connection only when the clutch piston (30) engages the converter cover (3), and a second torsional damper (100) operably connected between the crankshaft (10) and the converter cover (3) to provide a driving connection during operation of the engine. During operation of the lock-up mechanism (3, 30, 31), the two dampers (32, 100) cooperatively operate in series with each other to provide an optimum damping effect.</p> |
