TORQUE CONVERTER IN VEHICLE

摘要

Disclosed is a torque converter in a vehicle, which permits putting a lock-up clutch into operation while sufficiently attenuating vibration at all rotation speed ranges of a low rotation speed range to a high rotation speed range of an engine.;The torque converter in a vehicle includes a lock-up clutch and a torsional damper, wherein the torsional damper has one side with a first centrifugal absorbing unit provided thereto for absorbing vibration and impact by centrifugal force, and a spline hub has one side with a second centrifugal absorbing unit for absorbing vibration and impact by centrifugal force.

主权项

1. A torque converter in a vehicle comprising:
a front cover; an impeller connected to the front cover to rotate together with the front cover; a turbine arranged at a position opposite to the impeller; a reactor positioned between the impeller and the turbine for changing an oil flow from the turbine toward the impeller; a lock-up clutch having a piston for directly connecting the front cover to the turbine; a torsional damper coupled to the lock-up clutch for absorbing an impact and vibration acting in a rotation direction; and a spline hub connected to the torsional damper for forwarding driving power from the torsional damper to a transmission, wherein the torsional damper has one side with a first centrifugal absorbing unit coupled thereto for absorbing vibration and impact by centrifugal force, and the spline hub has one side with a second centrifugal absorbing unit coupled thereto for absorbing vibration and impact by centrifugal force.