The overall structure of a truck consists of four major components. Engine, chassis, body, electrical equipment.TWith 2 large mechanisms, 5 major systems, engine consisting of cylinder, crank linkage, valve train, supply system, cooling system, lubrication system, ignition system (for gasoline engine), starting system, etc.An in-depth understanding of vehicle performance requires an interpretation of vehicle performance from displacement, power and torque. Many times the vehicle displacement is the same, but the specific power performance is different.
Horsepower refers to the work done by an object in a unit of time, namely, the power is a physical quantity that describes the speed of work. The amount of work is constant, and the shorter the time, the greater the power value. The horsepower we often say is actually a commonly used unit for measuring power, generally referring to metric horsepower; the international standard unit for another power is KW, 1 kW = 1.36 hp. The power of the truck is like how much food can be grinded in a day. The more powerful the truck is, the more work the unit does.
Torque refers to the torque that the engine outputs from the crankshaft end. The unit of torque is Nm. The most direct performance of a truck is that the greater the torque, the faster the start will be.
Displacement: The volume of space through which the piston moves from top dead center to bottom dead center is called the cylinder displacement. If the engine has several cylinders, the sum of all cylinder working volumes is called the engine displacement. The unit of displacement is the volume unit: liter (L).
The relationship between horsepower and torque is kW = Nm x rpm / 9549. At the same speed, power and torque can be calculated and converted by the formula. Because the speed of the same power car is not the same, the big one can pull a larger grinding machine, can grind more food, and the efficiency is high. The greater the displacement of the truck, the greater the horsepower and torque. In the sales, the engine is more to find the difference, to subdivide the user and meet the user's needs.
Small displacements are not necessarily fuel efficient. When choosing an unreasonable small-displacement model, the overload operation is not only slow, but also exacerbates the wear between components. The vehicle is fatigued for a long time and its life is reduced. At the same time, in order to obtain more horsepower and torque, the speed is increased and the fuel consumption is certainly not low. For this user, the configuration must be reasonably given as needed.
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