Hydrokinetic torque coupling device having turbine-piston lock-up clutch, and related methods
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United States of America Patent
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Dec 19, 2017
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N/A
app pub date -
Oct 23, 2014
filing date -
Oct 23, 2014
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Abstract
A hydrokinetic torque coupling device features a casing including a casing shell and an impeller casing shell, an impeller including the impeller shell, a turbine-piston including a turbine-piston shell, and a restriction element. The turbine-piston shell includes a turbine-piston flange and partitions the interior volume of the casing into two chambers. The turbine-piston flange has an engagement surface movable axially toward and away from an engagement surface of a piston engagement portion of the impeller shell to position the hydrokinetic torque coupling device into and out of a lockup mode. The restriction element is configured to restrict fluid flow and create a pressure drop between the first and second chambers.
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