Что значитengine torque? Сила вращения коленчатого вала автомобиля – качественный показатель работы двигателя. Характеристика получила термин «крутящий момент». КМ отличается от силы вращения, происходящей снаружи, внутренним воздействием на вал. От него зависит возможность увеличения скорости авто и тяговые характеристики мотора. Как увеличитьengine torque – разберем подробнее.
Content
- Torque dependency
- Nominal and maximum torque values
- The difference between the torque of the diesel engine cars from gasoline
- KM increase
Torque dependency
To make it easier to explain what the motor torque of a car means, imagine a rotating output shaft. To give it movement, a force is required that can turn the shaft with the load. The value of KM - non-permanent and directly depends on the possibility of the motor. In addition, the simple combustion of fuel is not enough to organize the movement. In the process involved gearbox, transmission, razdatka, CV joints, gearbox. Has the value and type of drive auto - rear or front.
The two terms — torque and engine power — are inseparable and flow one from the other. The formula for calculating each is:
- M = P / N, where N - engine speed.
N * M - Newton meters - the value in which the engine torque is measured. Formula Power:
The difference between the torque of the diesel engine cars from gasoline
KM gasoline and diesel engine is significantly different. What determines the characteristic of the moment - more:
- Characteristics of diesel fuel seriously exceeds the AI, since the compression of the gas-air mixture in the cylinder of a diesel car, and, consequently, the energy is two times more than that of a traditional motor.
- The maximum speed of the diesel unit is up to 5000. However, the CM can be higher and is used even at idle. Hence the high fuel economy.
- Tests of engines with the same power show the advantage of a diesel unit with a benefit of up to 30% n * mot of the nominal parameter – what measures the engine torque.
From the above it follows that not only power is of paramount importance when choosing a type of engine. For high dynamic performance torque is important.
KM increase
Why and how to increase the engine torque? The first part of the question is easy to answer. Usually, discontent KM comes from the owners of small cars - the driving characteristics of the car are reduced for any reason, whether it is air conditioning or power steering. With the increase in the characteristics and increase the possibility of the car. This acceleration and traction.
It is logical to assume that the second part of the question - how to raise the CM - is solved by replacing or refining the engine components. Some methods are carried out independently, others require professional intervention. Details:
- Replacing the camshaft, exhaust valves and filters for parts with high efficiency. For example, it is possible to use a shaft with larger knees or adjust the torque on the wheel of a car. In the latter case, special gears with a high gear ratio are installed in the gearbox. Amateurs may not cope with the work - the installation of components is better left to experts in car tuning.
- Increase the volume of the piston system. This involves boring the cylinders and replacing the piston diameter with a larger one. The result of an increase in the torque value is guaranteed due to the increased engine power - a natural effect. The downside is the increase in fuel consumption.
- Increase the degree of compression of the gas-air mixture. This requires reducing the volume of the combustion chamber in order to obtain an excess pressure. A high rate will naturally increase the force of the piston, but at the same time the threshold of detonation is significantly reduced. As a result - wear of the piston group and the danger of premature ignition of the fuel.
- Increasing the diameter of the intake valves. The principle is simple: the more fuel, the higher the formation of released heat. This is what gives the engine torque - the increase in energy. To install a new valve of larger diameter again requires boring parts. Without experience, there’s no point in doing work, no - you can easily damage the system. A new original components - the road.
- Turbine. It consists in the finalization of the cylinder head. What gives the engine torque in this case? After modification, the volume of the gas-air mixture increases, therefore, after detonation, the power is a multiple of increases. Respectively increases KM. The disadvantage of this method is expensive work, which is not always justified for cars of budget classes.
- Electronic tuning, block firmware or chip tuning. It consists in reprogramming the engine controller. How to learn about KM correction? Changes in the opening time of the intake valves are made in a big way, therefore, fuel consumption will increase. In addition to the time interval, many other parameters are changing - the system of cooling, ventilation, air intakes and other things. Advantages of the method are safe - you can always return the default settings.
- Replacing heavy pistons with lightweight ones. Efforts to work will need less, the dynamics of the engine will increase, the speed of the car will increase. Minus - the method is suitable for gasoline cars, where the compression ratio is less and the detonation threshold is higher. Otherwise, rapid wear of light parts can not be avoided.
So, asynchronous motor torque and power - related concepts. All work on changing the value of one parameter entails the correction of another.
