Why not buy a three-cylinder car?

The reason why it is not recommended to buy a three-cylinder car: the three-cylinder engine has one stroke less than the four-cylinder engine, and it is easy to shake and make a loud noise when working.

In addition, in order to achieve power output consistency close to that of a four-cylinder engine, a three-cylinder engine needs to match a flywheel with a large mass, so that the running inertia of the engine becomes larger, the rotating speed becomes dull, and the throttle response is not positive.

A three-cylinder car refers to a car equipped with a three-cylinder engine. A three-cylinder engine consists of three cylinders, which are arranged on a car body. The crankshaft is used to output power, and the displacement is below 1 liter. A four-cylinder car refers to a car equipped with a four-cylinder engine. The engine block of a four-cylinder engine is mainly composed of cylinder block, crankcase, cylinder head and cylinder gasket.

Yao Chunde, a professor at Tianjin University and an expert judge of the Top Ten Engines in China, said at the online seminar on high-efficiency power in the 20 18 automobile market: 20 19 is the rebirth year of the three-cylinder engine, and the performance of the new three-cylinder engine is better than that of the four-cylinder engine.

It is precisely because of the introduction of new technology that the NVH performance of the new three-cylinder engine is superior, and the power performance is generally higher than that of the naturally aspirated engine with a displacement of more than 2.0L.

Low fuel consumption

Because of its structural advantages, the three-cylinder engine has excellent performance in fuel consumption control. The miniaturization of the engine makes it smaller in size, higher in power density and higher in thermal efficiency. Because of the structure, the pumping loss of a three-cylinder engine will be lower, and because the cylinder block is smaller, the friction loss is smaller, and the corresponding heat loss will also be reduced. ?

Strong motivation

In the displacement range of 1.0L- 1.5L, because the number of cylinders is less than that of a four-cylinder engine, the single cylinder volume of a three-cylinder engine with the same displacement is larger, but the power is better at low speed; When the number of cylinders is small, the mechanical friction will be small, but when the number of cylinders increases, the single cylinder efficiency will decrease. A three-cylinder engine has faster dynamic response and stronger dynamic performance than a four-cylinder engine. ?

Low turbine lag

Compared with the four-cylinder engine, the exhaust interference of the three-cylinder engine is less, and with the small inertia turbine technology, the three-cylinder engine will have better low-speed torque and smaller turbine lag than the four-cylinder engine. ?

Small volume light weight

The three-cylinder engine is small in size and light in weight, which can reduce the weight of the whole vehicle. Smaller size will also save space in the engine compartment and provide space for electrified components. ?

Suitable for hybrid electric vehicles

On the one hand, the hybrid power system is large, and the compact three-cylinder engine is more suitable for the hybrid power system; On the other hand, a three-cylinder engine is more efficient.

Refer to the above content: People's Network-Black Technology! 10 The new three-cylinder engine is more powerful than the four-cylinder engine.

Phoenix net-after reading it, you will know that the car value of three-cylinder engine is not worth buying!

Baidu encyclopedia-three-cylinder engine