Torque Converter

In modern usage, a torque converter is generally a type of hydrodynamic fluid coupling that is used to transfer rotating power from a prime mover, such as an internal combustion engine or electric motor, to a rotating driven load. The torque converter normally takes the place of a mechanical clutch in a vehicle with an automatic transmission, allowing the load to be separated from the power source. It is usually located between the engine's flexplate and the transmission.

The key characteristic of a torque converter is its ability to multiply torque when there is a substantial difference between input and output rotational speed, thus providing the equivalent of a reduction gear. Some of these devices are also equipped with a temporary locking mechanism which rigidly binds the engine to the transmission when their speeds are nearly equal, to avoid slippage and a resulting loss of efficiency.

By far the most common form of torque converter in automobile transmissions is the device described here. However, in the 1920s there was also the pendulum-based Constantinesco torque converter. There are also mechanical designs for continuously variable transmissions and these also have the ability to multiply torque, e.g. the Variomatic with expanding pulleys and a belt drive.

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Other articles related to "torque converter, torque":

Turbo-Hydramatic - Super Turbine 400 / THM400 / THM375 / 3L80 / 3L80HD
... and Oldsmobile THM400s produced between 1964-67 were equipped with a Switch-Pitch torque converter variable-pitch stator, which is sought after by collectors and drag racers ... These can be identified outside the vehicle (with the torque converter removed) by a narrow front pump spline ... GM used a Switch Pitch torque converter in the Buick twin turbine Dynaflow transmission between 1955–1963 and the Super Turbine 300 two speed transmissions used by Oldsmobile Pontiac, and Buick divisions ...
Corvair Powerglide - Operation
... welded assembly 10 in (25 cm) diameter torque converter mounted remotely on the rear face of the differential, (that also incorporates the starter ring gear, and a ... (except in Pontiac's 1963 version, redesigned to handle the increased torque of a new V8 engine in Tempest and LeMans, added by means of a separate lever) ... via a hollow turbine shaft from the engine mounted torque converter to the transmission gearbox ...
Super Turbine 300 - Design
... The ST300 had a three-element torque converter, a front and rear multiple-disc clutch pack, and a compound planetary gearset with a front band and a ... providing a gear ratio of 1.7651 plus the additional low-speed multiplication of the torque converter ... From 1964-1967, Buick and Oldsmobile versions of this transmission used a torque converter with a variable-pitch stator called Switch-Pitch by Buick and Variable Vane by Olds ...
Moto Guzzi 1000 Convert
... and stroke to give a displacement of 949 cc (57.9 cu in), and replaced manual gearbox with a torque converter built by Sachs, and two-speed gearbox ... The "Convert" name referred to the torque converter which fed engine power to a conventional clutch ... The clutch had to be used to shift between two speeds but the torque converter enabled the bike to stop in either gear and accelerate smoothly without using the clutch ...

Famous quotes related to torque converter:

    Poetry uses the hub of a torque converter for a jello mold.
    Diane Glancy (b. 1941)