ANSWERS: 1
  • Torque converters are a type of fluid coupling used in almost all automatic-equipped vehicles. These components allow an engine to idle without a manually operated clutch and are now one of the most reliable means of power transfer in use.

    History

    Modern torque converters are based on the Hydristor, a fluid coupling patented by Henry F. Vickers in 1925.

    Function

    A torque converter utilizes a turbine on the engine to pass fluid through a matching impeller on the transmission side. At a predetermined rpm, the engine turbine begins to drive the transmission impeller in the same direction, causing the vehicle to move.

    Location

    The torque converter is attached to the back of the engine's crankshaft, sandwiched between the engine and transmission.

    Efficiency

    Most torque converters transfer about 97 percent of the engine's power to the transmission. Modern lockup torque converters are capable of delivering 100 percent.

    Failure

    Torque converter failure can usually be recognized by shudder on acceleration, increased fuel consumption and metal debris in the transmission fluid.

    Source:

    Rod and Custom Magazine

    Car Craft Magazine

    Chevy High Performance Magazine

    Resource:

    How a Torque Converter Works (Video)

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