How does a torque converter work? How does a torque converter work?

The working principle of the torque converter is:

The torque converter has 3 working wheels, namely the pump wheel, the turbine wheel and the guide wheel. The structure of the pump wheel and turbine is basically the same as that of the hydraulic coupler; The guide wheel is located between the pump wheel and the turbine, and maintains a certain axial clearance with the pump wheel and the turbine, and is fixed to the transmission housing through the guide wheel fixing sleeve.

When the engine is running, the casing and the pump wheel of the hydraulic torque converter rotate with it, and the hydraulic oil in the pump wheel rushes to the turbine from the outer edge of the pump wheel blades under the action of centrifugal force. And along the turbine blades flow to the guide wheel, and then through the guide wheel blades flow back to the inner edge of the pump wheel blades, forming a circulating liquid flow. The role of the guide wheel is to change the output torque on the turbine.

Since the hydraulic oil flowing from the lower edge of the turbine blades still has a considerable impact force, as long as the blades of the pump wheel, turbine and guide wheel are designed into a certain shape and angle, the above impact force can be used to increase the output torque of the turbine.

The role of the torque converter:

The working characteristics of the torque converter are that the speed and torque at the input end are basically constant; There may be changes, but not much. The speed and torque of the output can be greater, equal to or less than the speed and torque of the input, and the output speed and output torque can be automatically and continuously adjusted with the load of the driven working machine.

Because the hydraulic torque converter has the function of continuously variable speed and torsion, it is widely used as a transmission device between various power machines and working machines.

For example, it is used as a transmission device for road transport vehicles as well as railway transport vehicles. In addition, it is also used in construction machinery. Mining machinery (oil rigs, drilling rigs, crushers, etc.) and large ships.

Power is transmitted using the circulating flow of oil.

Answer: The working principle of the torque converter is very simple, the torque converter is composed of a pump wheel turbine and a guide wheel, the torque converter has a transmission oil in it, and the pump wheel will rotate after starting the engine, so that the transmission oil will pass through the guide wheel to the turbine, and the guide wheel will also rotate under the action of the transmission oil.

The pump wheel is connected to the engine flywheel, and the turbine is connected to the power input shaft of the gearbox.

The guide wheel is sandwiched between the pump wheel and the turbine wheel.

There are special structural designs on both the pump wheel and the turbine wheel, so that the transmission oil can be used to transmit power.

Automatic Transmission Torque Converter Working Principle.

The loader has an instantaneous thrust of up to 50 tons, and in addition to the powerful engine, it is also a key part.

Hydraulic force transmission can also be torque, only the increased torque is retained, and the reduced torque is eliminated. When the working condition is reached, it can be turned into mechanical transmission.

The motor drives the input shaft of the torque converter, the input shaft drives the fan-shaped impeller inside, the input impeller drives the working liquid to rotate, and the working liquid drives the output impeller to rotate. When the input speed is constant, the amount of liquid determines the speed of the output shaft, so the speed of the output shaft can be controlled by controlling the amount of working liquid.

The torque converter consists of a pump wheel, a turbine and a guide wheel. Installed on the flywheel of the engine, the hydraulic oil (ATF) is used as the working medium to transmit torque, torque change, speed change and clutch.

Introduction to Torque Converter:

The torque converter is a hydraulic element composed of a pump wheel, a turbine and a guide wheel. Installed between the engine and the transmission, the hydraulic oil (ATF) is used as the working medium to transmit torque, torque conversion, speed transmission and clutch.

How does a torque converter work?

1. Mechanical energy kinetic energy process: The pump wheel is driven by the engine to rotate, and the liquid is pushed to rotate around its axis with the pump wheel, so that it can obtain a certain speed (kinetic energy) and pressure. Its speed is determined by the radius and speed of the pump wheel.

2. Kinetic energy Mechanical energy process: The liquid rushes to the turbine by kinetic energy, acts on a thrust of the blade, pushes the turbine to rotate together, and the turbine obtains a certain torque (mechanical energy). A small part of the liquid kinetic energy is consumed by friction with the runner in the high-speed flow.

3. Momentum moment change process: the guide wheel is fixed, there is no mechanical energy conversion when the liquid flows through, due to the change of the shape of the guide wheel blades (the area of the inlet and outlet blades is not equal), the velocity and direction of the liquid flow change, and its momentum moment changes. The momentum moment change depends on the change in the blade area.

The turbine speed varies with the external load, and the direction and speed of the liquid flow hitting the blades also changes.

The working principle of the torque converter is that the pump wheel is driven by the engine to rotate, and the liquid is pushed to rotate around its axis with the pump wheel, so that it can gain a certain speed and pressure.

The torque converter is composed of a pump wheel, a turbine and a guide wheel, which is installed between the beam engine and the transmission, and uses hydraulic oil as the working medium to transmit torque, torque conversion, speed change and clutch. The characteristics of the hydraulic torque converter are: according to the driving resistance or working resistance of the machine, the torque converter can automatically and steplessly change the speed and torque within a certain range; Extend the service life of the machine.

Hydraulic torque converter

Hydraulic torque converter is also known as "hydraulic torque converter", "turbine torque converter", "dynamic hydraulic torque converter". A type of hydraulic transmission component. It consists of a pump wheel, a turbine wheel and a guide wheel.

The pump wheel is connected with the driving shaft, and the mechanical energy input from the driving shaft can be converted into the kinetic energy and pressure head of the liquid by the action of centrifugal force for the turbine to do work.

A torque converter is a component that transmits power with the help of the high-speed movement of liquids. Its working characteristics are that the speed and torque of the input end are basically constant; There may be changes, but not much. The speed and torque of the output end can be greater, equal to or less than the speed and torque of the input end, and the speed and output torque of the conveyor shed can be automatically and continuously adjusted and changed with the size of the negative load of the driven working machine.

The above content reference:Encyclopedia - Hydraulic torque converter

The working principle of the torque converter is as follows: when the power machine drives the input shaft to rotate, the liquid flows out of the centrifugal pump in turn, passes through the turbine and the guide wheel and then returns to the pump wheel, and circulates again and again. The pump wheel transfers the mechanical energy from the input shaft to the liquid.

The high-speed liquid pushes the turbine to rotate, transferring energy to the output shaft. The working of the torque converter is divided into three processes: 1. Kinetic energy process

The pump chamber gear wheel is driven by the engine to rotate, and the liquid is pushed to rotate around its axis with the pump wheel, so that it can obtain a certain speed and pressure, and its speed is determined by the radius and speed of the pump wheel; 2. Mechanical energy process: the liquid body rushes to the turbine by kinetic energy, acts on a thrust of the blade, pushes the turbine to rotate together, the turbine obtains a certain torque, and a small part of the liquid kinetic energy is consumed by friction with the runner in the high-speed flow; 3. Momentum moment change process: the guide wheel is fixed, there is no mechanical energy conversion when the liquid flows through, due to the change of the shape of the guide wheel blades, the velocity and direction of the liquid flow are deformed, and the momentum moment changes, and the momentum moment changes depending on the change of the blade area.

A torque converter is a hydraulic component consisting of a pump wheel, a turbine and a guide wheel. Hydraulic fluid (ATF) is installed between the engine and transmission and acts as a working medium to transmit torque, change torque, shift and clutch. Then, the car patiently introduced the friends to the working principle of a torque converter.

Brief introduction. Hydraulic torque converter is a kind of non-rigid torque converter with liquid as the working medium, which is one of the forms of hydraulic transmission. The picture shows the torque converter, which has a closed working chamber in which the liquid circulates, and the pump wheel, turbine and guide wheel are connected with the input shaft, output shaft and housing respectively.

When the power engine (internal combustion engine, electric motor, etc.) The input shaft is driven to rotate, and the liquid flows out of the centrifugal pump impeller, passes through the turbine and the guide wheel in turn, and then returns to the pump wheel, circulating and flowing. The pump wheel transfers the mechanical energy of the input shaft to the liquid.

The high-speed liquid drives the turbine to rotate, transferring energy to the output shaft.

Variable Torque Principle.

The oil flow in the fluid coupler is reversed, and the pump wheel of the fluid coupler is actively rigidly connected with the engine crankshaft. During operation, the centrifugal force causes the ATF to be thrown outward, impacting the turbine blades, and the turbine is driven, and the fluid flowing back from the turbine hits the pump wheel again, hindering the pump wheel operation. It is characterized by low operating efficiency, but it can achieve continuously variable speed within the necessary range, which is conducive to the smooth starting shift of the car.

Principle of operation. 1) Mechanical energy &rarr process: The pump wheel is driven by the engine to rotate, and the liquid is driven to rotate around its axis with the pump wheel, so as to obtain the necessary speed (kinetic energy) and pressure. Its speed depends on the radius and speed of the pump wheel.

2) Kinetic energy &rarr The process of mechanical energy: the liquid rushes to the turbine by kinetic energy, acts on a thrust of the blade, pushes the turbine to rotate, and the turbine obtains the necessary torque (mechanical energy) for high excitation. In high-velocity flow, a small amount of liquid kinetic energy is consumed by friction with the channel.

3) Momentum moment change process: the guide wheel is fixed, and there is no mechanical energy conversion when the liquid flows, because the shape of the guide wheel blades changes (the area of the inlet and outlet blades changes), the speed and direction of the liquid flow change, and its momentum moment changes. The change in momentum moment depends on the change in the area of the blade.

Well, today there are so many friends of the car to briefly introduce the working principle of the torque converter. I don't know if you have a better understanding of the working principle of the torque converter after listening to the brief introduction of the car? I hope the introduction of Bian Xiao car can be helpful to friends.

Millions of car purchase subsidies.

The working principle of a torque converter is simple. The torque converter consists of a pump wheel, a turbine and a guide wheel. There is transmission oil in the hydraulic torque converter.

After the engine starts, the pump wheel will rotate, and Nasen will make the transmission oil pass through the guide wheel to the turbine, and the guide wheel will also rotate under the action of the transmission oil.

The pump wheel is connected to the engine flywheel, and the turbine is connected to the transmission power input shaft.

The guide wheel is clamped between the pump wheel and the turbine.

The pump wheels and turbines have a special structural design so that the transmission oil can be used to transfer power.

If you don't understand the principle of power transfer, I suggest you take a quiz.

Identify the two electric fans in your home, place them facing each other, turn one on, and turn on the switch. At this point, although the other electric fan is not energized, it will also rotate with it. This is how torque converters work.

The only medium used for the transmission power of the torque converter is transmission oil.

Among the automatic transmissions, there is an AT transmission with a torque converter, and Honda's dual-clutch transmission also has a torque converter. Honda has installed a torque converter on the dual-clutch gearbox to make shifting smoother.

AT transmissions are the most mature and widely used automatic transmissions in the world. This gearbox offers better shift smoothness, reliability, and durability.

Millions of car purchase subsidies.