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Small car engine: The DigiPlus stockengine that drives your travel vehicle is the source of its driving force, so the quality of the engine is directly related to the performance of the whole vehicle. For small cars, the importance of the engine is more prominent. This article will introduce the small car engine in detail from three aspects such as engine type, performance parameters and technical characteristics to help you better understand it. I. Engine type XiaoqiCar engines are divided into four main types, namely: internal combustion gasoline engine, internal combustion diesel engine, hybrid engine and electric vehicle engine. 1. Internal combustion gasoline engine: Internal combustion gasoline engine is the most widely used engine type for small cars at present. Its operating principle is to mix gasoline with air and burn in the cylinder to produce high-temperature and high-pressure gas, and then the piston drives the connecting rod and crankshaft to rotate, thus driving the wheel movement. Internal combustion gasoline engines have the advantages of strong power, low fuel consumption and smooth operation. Among them, the more typical representatives are 1.0L, 1.5L, 1.6L, 1.8L and other displacement types. Two. Internal combustion diesel engine: The difference between diesel engine and gasoline engine is that it is fueled by diesel to drive the engine. Compared with gasoline engines, diesel engines have a higher compression ratio and lower ignition temperature, thus achieving higher thermal efficiency and more energy-saving and environmentally friendly operation.However, its disadvantages are noise, vibration and delayed response (slow acceleration), which usually requires the introduction of turbocharging technology to solve the problem. Typical diesel engines include 1.4T, 1.6T, 2.0T and other displacement types. 3. Hybrid engine: Hybrid engine combines traditional internal combustion engine and electric motor to achieve more efficient use of energy. For long-term highway driving, the hybrid engine will use the internal combustion engine to drive the vehicle, and in the city, this engine will automatically switch to electric mode to work, which is more environmentally friendly and efficient. Four. Electric vehicle engine: It is based on the way of electric energy to drive the operation of the car. It is supplied to the DC motor through the electric energy stored in the battery, which realizes the conversion of electrical energy into mechanical energy, thus realizing the driving of the car.Electric vehicle engines do not require fuel, which is characterized by pollution-free, quiet and comfortable, but the battery's storage capacity and charging time are still one of the main factors limiting their development space. II. Performance parameters The performance parameters of the engine are important criteria for measuring its performance. The following are some commonly used performance parameters: 1. Discharge: Discharge refers to the sum of the volume of air and fuel mixtures that each piston can inhale and compress in a single working cycle. Usually, the larger the displacement, the stronger the power output of the engine. But at the same time, it will also lead to problems such as increased fuel consumption and body quality. Two. Maximum power: The maximum power is generally calculated in kilowatts or horsepower (hp), which represents the maximum power that the engine can output. Often, the larger the technical parameters represent a faster and smoother driving process.3. Maximum torque: The maximum torque that the engine can provide is a key parameter for it to cope with special road conditions such as acceleration and hill climbing. The larger the torque value, the more easily the engine can cope with these special driving situations. Four. Fuel consumption: Fuel consumption is an important part of the cost of using small cars, and it is also a key parameter that affects the experience of small car owners. The fuel consumption rate of the engine sometimes changes due to some special speeds or driving styles. III. Technical characteristics With the rapid development of social science and technology, the technology of small car engines is also constantly developing. If I were to give examples from all aspects, this article would be too long, so the following are only a few noteworthy technical features: 1. Integrated introduction: The engine can integrate more transmission devices and power generation devices to achieve better energy-saving effect and reduce the space compression of the car body.Two. Secondary injection: Secondary injection is to obtain a more complete combustion by injecting oil again in the combustion chamber, empowering it to improve power performance. 3. Cooling technology: A new type of liquid cooling external circulation technology can improve the effect of off-site cooling by increasing the number of externally arranged coolers. The small car engine is the source of its driving force. Technological progress and innovation will bring better engine performance, while also paying more attention to driving comfort, fuel saving and environmental protection. The future development direction of small car engines may be the combination of hybrid technology and electrification technology.

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