How much do you know about torque converters?

Study Notes

The torque converter is located between the engine and transmission and multiplies engine torque while also acting as a clutch.
It has three major parts: the impeller, turbine, and stator.
The vanes in each element are curved to increase fluid flow and force.
The torque converter operates like two fans pointing towards each other with the transmission fluid acting as the air.
The stator changes fluid direction and multiplies torque from the impeller.
Torque converters cannot be disassembled or easily repaired.
The torque converter is bolted to a flexplate which replaces the heavy flywheel used with a manual transmission.
The torque converter drives the transmission oil pump and the transmission input shaft.
Torque multiplication occurs due to fluid redirection during the torque multiplication phase.
The coupling phase occurs when the speed ratio is 90° or more, and torque multiplication drops.
Torque converters are used in automatic transmissions to transfer engine torque to the transmission input shaft.
Torque multiplication occurs when the stator redirects fluid flow from the impeller to the turbine.
Torque multiplication drops as the torque converter approaches the coupling phase.
Stall speed is the engine speed at which the turbine does not move when the impeller rotates.
Most modern torque converters multiply torque in the range of 2:1 to 2.5:1 at the stall speed.
Vehicle creep is normal for vehicles equipped with an automatic transmission.
The outside diameter of a torque converter and the angle of its stator blades determine the stall speed of the converter.
Vehicle manufacturers select torque converters to match the powertrain requirements and operating demands of each vehicle application.
A vehicle with a large engine that produces a lot of torque at low RPM will often use a torque converter that couples at low speeds.
Vehicles with smaller engines that produce less torque at low RPM will use a torque converter that allows the engine to operate higher in its torque curve.

Description

Test your knowledge of torque converters with this informative quiz! From the parts that make up this essential component to how they operate in automatic transmissions, this quiz covers it all. Explore how torque multiplication occurs and how it affects vehicle performance. Learn about stall speed and how it varies depending on the vehicle's powertrain requirements. Whether you're an automotive enthusiast or just looking to expand your knowledge, this quiz is perfect for anyone interested in the inner workings of a vehicle's transmission.