| 摘要 |
In one embodiment, a torque converter includes a two-piece cover, an impeller, a turbine, and a lockup clutch. The two-piece cover includes a base plate that is configured for attachment to a drive member. The base plate has a plurality of lugs around the periphery thereof, and at least some of the lugs have straight flanks. The two-piece cover also includes a cylindrical wall piece that is fixed to the base plate. The impeller is fixed to the cylindrical wall piece. The turbine is rotationally mounted between the impeller and the cover and is configured for attachment to a driven member. The lockup clutch is configured to lock the impeller and cover to the turbine when a fluid pressure applied to the lockup clutch increases above a torque converter lockup pressure.
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