what are the two main functions of a torque converter?

Question

a torque converter in automatic transmissions

Answer 1

A torque converter must be used when running an automatic transmission and is sometimes considered part of the transmission, but the torque converter is a separate entity from the transmission and serves three primary functions.
First, the torque converter, like the name denotes, transfers engine torque to the transmission. This also allows the vehicle to come to a complete halt without stalling. Not only does the torque converter transfer engine torque to the transmission and the transaxle gear-train but is also amenable for multiplying that same engine torque to the transmission. This is the torque converter's secondary function and results in greater vehicle performance.
Thirdly, the torque converter provides a direct-drive, or mechanical link from the engine to the transmission. It is the mechanism that couples the engine's rotational force to an automatic transmission. The clutch performs this function on a manual transmission. Instead of transmitting the power via direct contact friction as a clutch does, the torque converter transmits power from the engine to the transmission by the force of oil flow.

Answer 2

Torque Converter

Answer 3

The first function of the torque converter is to connect the crankshaft and the input shaft so the engine can move the vehicle. It uses a fluid to transmit rotation from one shaft to another.

The torque converter also replaces the clutch that is required in a manual transmission; this is how an automatic transmission vehicle can come to a stop while still being in gear without stalling the engine.

Answer 4

In general terms, a torque converter is a type of fluid coupling (torque multiplier) that is used to transfer rotation power from a prime mover, such as an combustion engine or electrical motor, to a rotating driven load.

If you have some knowledge of manual transmissions, you are aware that an engine is connected to a transmission by way of a clutch. Without a clutch, a car would not be able to come to a dead stop without killing the engine. The challenge with aut¬omatic engines is that their transmissions have no clutch that disconnects the transmission from the engine. Rather, they use a device called a converter. It may not look like much, but there is a lot going on inside.

Answer 5

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RE:
what are the two main functions of a torque converter?
a torque converter in automatic transmissions

Answer 6

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A limited slip differential has mechanisms to compensate for low grip on wheels. There are several different types. I'll list the main ones here. Viscous Coupling - A VC diff is like the torque converter in an auto transmission. It has two sets of vanes - one set each connected to the two axles. They work by using the friction of fluid. A VC is filled with oil - similar to transmission fluid. When one wheel spins, it drives the vanes attached to its axle, which churns the fluid. This heats the fluid and increases its resistance. This creates friction which then drives the other set of vanes. VC have several downsides - because the resistance of the fluid varies with its temperature, the operation of the VC can change. Like a torque converter, you can also overheat the fluid in a VC, and it will not work. Mechanical - Mechanical LSD's use either gears or clutches inside the diff to prevent single wheelspin. A simple clutch LSD has a set of clutch plates attached to each axle, and matching clutch plates attached to the housing. A mechanism uses the turning power applied to the LSD to push the clutches locked. The advantage of a clutch LSD is that in this manner the diffs are active whenever there is acceleration or deceleration force applied to it - even in a straight line. The downside is the same as with most LSD's. An LSD needs to have at least some resistance against both wheels or it won't function. Lift one wheel in the air and the LSD does nothing. There are ways to overcome this, however. Electronic - There are electronic differentials out there that use various means to control power output to each wheel. These are often called 'active' differentials. The active yaw control in an EVO Lancer is one example. It uses electronics to sense turns, and physically delivers more power to the outside wheel. It works well, because even if the front wheels understeer (with the AWD), the extra power on the outside wheel actually pushes the nose around the corner. There are other variations such as TORSEN and such, and they all work differently. Hope this helps!

Answer 7

To allow the engine to idle in gear and lock up by fluid coupling at speed. And another function torque multiplication.

Answer 8

1> To multiplies the power output of an engine acted with planetary geared connected from engine flywheel
2> To direct drive from engine power to input transmission shaft controlled by a lock-up clutch valve seating at the second speed clutch at a certain engine rpm to up-shift all ranges depending on the terrain condition.So in this situation no converter drive working.

Answer 9

1,it increases torque multiplication
2.it reduces tortional vibrations

Answer 10

1 to transmit power from the engine to the transmission.
2 to act as a fluid clutch to allow the engine to idle without the vehicle moving.