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This articleList of records:

• 1,Global supplier scorecard templates What are the main structural features of automobile engines?
• 2, What is the function, composition and structural characteristics of the electronically controlled engine?
• 3, What is the structure of the engine?
• 4. What are the main structural features of What are the main structural features of the EQ491 engine?
• 5, Gasoline Engine Structure Brief Description
• 6, Basic Knowledge Reserve about Automobile Engine
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What are the main structural features of automobile engines?

1. The engine is made of crankIt consists of two major mechanisms, connecting rod mechanism and gas distribution mechanism, and five major systems: cooling system, lubrication system, ignition system, oil supply system and start-up system. The main components include cylinder block, cylinder head, piston, piston pin, connecting rod, crankshaft and flywheel.

2. Fuselage group, composition: cylinder head, cylinder block and crankcase Function: As the assembly base of the engine mechanisms and systems, it is the skeleton that supports and fixes the crank connecting rod mechanism and other devices, and the relevant parts of the tractor chassis form the frame of the tractor.

3. Hello, the structure of the car engine is like this. The car engine is a machine that converts internal energy into mechanical energy. It is the heart of the car and the power source of the car. It is mainly composed of two major institutions and six major systems.

4. In terms of its overall function, the car engine is basically composed of two major mechanisms: crank connecting rod mechanism and gas distribution mechanism;Five major systems: start-up system, fuel supply system, ignition system, lubrication system and cooling system.



What is the function, composition and structural characteristics of the electronically controlled engine?

1. The electronically controlled engine is relatively stable, and its function isStart the vehicle through the signal sent by the engine computer, which consists of fuel injector, ignition coil, distributor, vvt solenoid valve, camshaft position sensor, crankshaft position sensor, oxygen sensor, water temperature sensor, air flow sensor, engine computer, gearbox computer.

2. Provide fault diagnosis function to improve reliability. The structural composition of the electronic control engine: electronic control unit. The electronic control unit (ECU) is the core of the engine electronic control system. It completes the acquisition of various parameters of the engine and the control of fuel injection volume and fuel injection timing, which determines the function of the entire electronic control system.

3. The electric injection engine adopts an electronic control device. Replace traditional mechanical systems (such as carburetors) to control the oil supply process of the engine.

4. Enter the cylinder for combustion.The electronic control system consists of several sensors that detect various conditions of the engine, an ECU that determines the amount of fuel injection according to the sensor signal, and an injector working according to the ECU instructions. Its main function is to determine the best fuel injection timing and fuel injection duration according to different working conditions of the engine.

What is the structure of the engine?

The crank connecting rod mechanism is composed of cylinder block, cylinder head, piston, connecting rod, crankshaft and flywheel, etc.

The gas distribution mechanism is an important part of the engine. It is composed of a valve group and a valve drive to control the intake and exhaust process of the engine. The more sufficient the engine intake and the more thorough the exhaust, the greater the output power, and vice versa, the smaller the output power. Therefore, the power and economy of the engine depend on the quality of the gas distribution mechanism.

Figure 1-4 The engine body group consists of 1 crankcase. The function of the crankcase body is to form the engine matrix together with the cylinder block and cylinder head. Many parts of the engine are installed in the crankcase, which bears a variety of forces of the engine. There are two different structural types of crankcases: integral and combined. 2 cylinders.

The engine is composed of two major mechanisms: crank connecting rod mechanism and gas distribution mechanism, as well as five major systems such as cooling, lubrication, ignition, fuel supply and start-up system. The working principle of the engine is air intake-compression-fuel injection-combustion-expansion work-exhaust. The following is the working process of the engine: the intake stroke, the quality entering the cylinder is pure air.

The engine is composed of two major mechanisms: crank connecting rod mechanism and gas distribution mechanism, as well as five major systems such as cooling, lubrication, ignition, oil supply and start-up system.The working principle of the engine is air intake-compression-fuel injection-combustion-expansion work-exhaust. The following is the working process of the engine: in the intake stroke, the quality entering the cylinder is pure air.

The structure of a gasoline engine consists of two major mechanisms and five major systems. Two major mechanisms: namely crank connecting rod mechanism and gas distribution mechanism; five major systems: namely fuel supply system, cooling system, lubrication system, ignition system and start-up system.

What are the main structural features of the EQ491 engine?

Q is produced by Toyota 4Y technology. There are two factories in China, one is Xinchen in Mianyang, Sichuan, and the other is Xinguang, Shenyang, with a fuel consumption of about 9 to 10 liters. This engine is technically mature and is also widely used in low-end SUVs.Discharge 2L.

BJ491EQ3 engine is a gasoline engine with a 95-horsepower three-emission standard, which is usually used in light cargo vehicles such as Foton, Times and Auling. BJ REPRESENTS BEIJING FUTIAN ENVIRONMENTAL PROTECTION POWER CO., LTD., 4 REPRESENTS 4 CYLINDERS, 91 REPRESENTS 91MM CYLINDER DIAMETER, AND EQ3 IS A SPECIFIC MODEL FOR THE GASOLINE ENGINE MODION BY THE ENGINE FACTORY.

One is multi-point electric injection and the other is single-point electric injection. Eq491 engine: The engine is a multi-point electric injection engine with a 3-cylinder displacement of 660cc. 491Q engine: The engine is a single-point electric injection engine with a 3-cylinder displacement of 660cc. QE stands for multi-point electric injection, and Q stands for single-point electric injection.

Brief description of the structure of the gasoline engine

The gasoline engine is composed of two major mechanisms and five major systems, namely the two major mechanisms of the crank connecting rod mechanism and the gas distribution mechanism, as well as the five major systems of fuel supply system, lubrication system, cooling system, ignition system and start system.

The combustion chamber of the gasoline engine is mainly on the cylinder head, while the combustion chamber of the diesel engine is mainly in the pit at the top of the piston. Only the combustion chamber of the gasoline engine is introduced here, and the combustion chamber of the diesel engine is introduced in the diesel supply system. Three common forms of gasoline engine combustion chambers.

The engine is composed of two major mechanisms: crank connecting rod mechanism and gas distribution mechanism, as well as five major systems such as cooling, lubrication, ignition, fuel supply and start-up system. The main components include cylinder block, cylinder head, piston, piston pin, connecting rod, crankshaft, flywheel, etc.The working cavity of the resurrected plug internal combustion engine is called a cylinder, and the inner surface of the cylinder is cylindrical.

The gasoline engine consists of two mechanisms and five systems: the crank connecting rod mechanism is the main moving part of the engine to realize the working cycle and complete the energy conversion. It is composed of the engine body, the piston connecting rod group and the crankshaft flywheel group.

Basic knowledge reserve about automobile engines

1. The engine body unit is the installation basis of various mechanisms, systems and some other components of the engine, and it is also a crank connecting rod mechanism, gas distribution mechanism, The assembly matrix of the fuel supply system, cooling system and lubrication system. ( 2) Gas distribution mechanism The gas distribution mechanism is composed of valve group and valve transmission group.

2. Cylinder, 12-cylinder, 16-cylinder, of course, these engines will have L-in-line, V-type and W-type layouts respectively.As we usually see, there are basically in-line three-cylinder engines, in-line four-cylinder engines, in-line six-cylinder engines, v-type six-cylinder engines, v-type eight-cylinder engines, etc.

3. Modern car engines mostly adopt four-cylinder, six-cylinder and eight-cylinder engines.

4. Inventory of automobile engine maintenance knowledge. Common engine faults. First of all, pay attention to the maintenance of the running-in period, which is the basis for extending the service life of the engine. Be careful of the two common diseases of the engine: 1) Engine wear.

5. Basic knowledge of automobile engine maintenance. Daily maintenance. Check the oil surface height inside the oil pan. If it is insufficient, it should be added to the specified line. Check the amount of cooling water. Check the stability of the engine connection and the tightness of the accessory device. Keep the engine clean and do the necessary scrubbing.

6. The exhaust volume of ordinary economy car engines also tends to increase. The two most basic parameters for measuring engine performance indicators are: the number of cylinders and the working volume of the cylinder, the latter is the usual exhaust volume.

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