Introduction to automobile knowledge -1. Common terms of engine

Automobile engine is the machine that provides power for automobile, and it is the heart of automobile, which affects the power, economy and environmental protection of automobile. Its type and layout have an important influence on the performance of automobiles.

This article will list some common engine words for the new sales consultants to learn from.

The so-called "cylinder" refers to the core device of the engine.The more cylinders, the greater the displacement of the vehicle, and the stronger the power and torque of the vehicle.

There are four-cylinder and six-cylinder engines, eight-cylinder, ten-cylinder and twelve-cylinder engines with high power. With the development of technology, a three-cylinder engine has been developed, which can further reduce the emission pollution of the engine on the premise of ensuring power.

These words refer to the arrangement of cylinders in the engine. In-line engine means that all cylinders of the engine are arranged in a straight line in the engine. Generally, this method is often used for vehicles with less than six cylinders.

V-engine means that all cylinders are divided into two rows and arranged at a certain angle. Generally, engines with more than six cylinders will arrange the cylinders in this way, thus reducing the space occupation of the engine in the engine compartment of the vehicle.

There is also a kind of engine arrangement called horizontal opposition, which is most commonly used by Subaru and Porsche. The advantage is that the engine does not need to overcome the gravity of the earth, and the engine center of gravity of the vehicle is lower, but the cylinder wall will be worn after a long time.

Transverse engine means that the direction of the crankshaft and axle of the engine is balanced, which is convenient for maintenance and further expands the driving space of the vehicle. This arrangement is applicable to all low-end models seen in the market.

The other is a vertical engine, which means that the crankshaft of the engine is perpendicular to the direction of the axle, so that the arrangement can better transmit the engine power to the rear axle. Most luxury brands in the market use this arrangement. Audi and Volvo are special, (Volvo uses transverse engines, while the above models use longitudinal engines).Therefore, horizontal and vertical engines are not the standard to distinguish the brand of vehicles.

What is said here is where the engine is placed in the vehicle. The front engine refers to the engine between the front wheels of the vehicle, which is the most widely used engine arrangement at present. The cost is relatively low, which can give the vehicle a lot of driving space, but it will have an impact on the ultimate control of the vehicle.

In order to improve the sports performance of the vehicle, there is a mid-mounted engine, which is placed behind the cockpit and in front of the rear wheel. This arrangement can greatly improve the handling of the vehicle, so most supercars now use this engine arrangement.

In order to reduce the distance from the engine to the rear wheel and improve the power transmission effect, there is a rear engine. It can greatly improve the power transmission efficiency, but the center of gravity moves backward, so it is easy to lead to vehicle steering transition. At present, among the daily passenger cars, only Porsche’s 911 series adopts this engine arrangement.

1. Advantages of transverse inline four-cylinder engine

At present, the most mature engine structure has the lowest cost of later maintenance.

2. Advantages of transverse V-type six-cylinder engine

The engine occupies a small driving space in the car, which can further expand the seating space of the vehicle.

3. Advantages of longitudinal inline four-cylinder and six-cylinder engines

The response speed of the engine is fast, and the center of gravity of the vehicle moves backward, which improves the maneuverability of the vehicle.

4. Advantages of longitudinal V-type six-cylinder engine

The space occupied by the engine is small, the center of gravity of the vehicle is also guaranteed, and the maneuverability of the vehicle is improved.

* The pictures in the article come from the Internet and are for reference only.