Is the torque good or small?
Under the same displacement, the greater the torque, the better the engine. The better the engine, the better the natural car feels. You can speed up if you want.
The greater the torque of the car, the better the reaction ability will be. Especially when the car starts at 0 speed, the higher the torque, the faster the lifting speed will be. If it is a car with the same engine, the greater the torque output, the better the carrying capacity, acceleration and climbing ability will be.
The greater the torque, the more adaptable it will be, so the fewer times it will change gears, which can reduce the wear and tear on the car, increase the service life of the car and reduce the economic burden caused by the need for maintenance of the car.
Causes of engine torque
In reciprocating piston engine, the piston moves up and down in a straight line and the crankshaft rotates. They are connected by connecting rods. When the engine is working, great gas pressure is generated at the top of the piston.
This force acts on the crankshaft through the connecting rod, and the distance from the center of the connecting shaft between the connecting rod and the crankshaft to the rotation center of the crankshaft can be regarded as a force arm. In this way, with force and arm, torque is generated, which is the source of engine torque.
It can be seen that the engine torque is related to two factors. One is the gas pressure acting on the top of the piston, and the other is the radius of crankshaft rotation, which can also be regarded as the stroke of the piston.
The greater the gas pressure acting on the piston top, the greater the force and torque. The gas pressure at the top of the piston is generated by fuel combustion. Obviously, the more fuel is burned at the same time, the greater the explosive force.
When we step on the accelerator to "refuel", we actually make the throttle open wider, let more air enter the engine cylinder, and inject more fuel at the same time, which makes the engine generate more torque. Intake supercharging technology can let more air into the engine, which is a good way to increase engine torque.