10/3/2023 0 Comments Torque converter solenoidThe equation expands to include the fifth power of radius as a result, torque converter properties are very dependent on the size of the device.Ī fluid coupling is a two-element drive that is incapable of multiplying torque, while a torque converter has at least one extra element-the stator-which alters the drive's characteristics during periods of high slippage, producing an increase in output torque. Torque converter equations of motion are governed by Leonhard Euler's eighteenth century turbomachine equation: Industrial power transmission such as conveyor drives, almost all modern forklifts, winches, drilling rigs, construction equipment, and railway locomotives.įunction Theory of operation.Forwarders and other heavy duty vehicles.Automatic transmissions on automobiles, such as cars, buses, and on/off highway trucks.Variomatic with expanding pulleys and a belt drive. They include the pendulum-based Constantinesco torque converter, the Lambert friction gearing disk drive transmission and the There are also mechanical designs for continuously variable transmissions and these also have the ability to multiply torque. There are also hydrostatic systems which are widely used in small machines such as compact excavators. This is a feature beyond the simple fluid coupling, which can match rotational speed but does not multiply torque and thus reduces power.īy far the most common form of torque converter in automobile transmissions is the hydrokinetic device described in this article. The main characteristic of a torque converter is its ability to increase torque when the output rotational speed is so low, it allows the fluid, coming off the curved vanes of the turbine to be deflected off the stator while it is locked against its one-way clutch, thus providing the equivalent of a reduction gear. The equivalent location in a manual transmission would be the mechanical clutch. It is usually located between the engine's flexplate and the transmission. In a vehicle with an automatic transmission, the torque converter connects the power source to the load. ZF torque converter cut-away A cut-away model of a torque converterĪ torque converter is a type of fluid coupling that transfers rotating power from a prime mover, like an internal combustion engine, to a rotating driven load. JSTOR ( July 2017) ( Learn how and when to remove this template message).Unsourced material may be challenged and removed. Please help improve this article by adding citations to reliable sources. ![]() This article needs additional citations for verification.
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