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What is the structure of a car engine?


Of all automotive parts, the car engine is the most important part, deciding the operation of the car. So what is a car engine?


Cylinders are considered car engine parts most important. That will be where the pistons move so that the car will operate smoothly. In a family car’s internal combustion engine, there are usually four to eight cylinders. The cylinders will be arranged in vertical, V-shaped or vertically aligned.

Spark plug

With the main task of creating spark for internal combustion, car spark plugs are a very important detail in engine. A good spark plug will spark right at the end of the compression stroke to help the car operate at maximum efficiency. If you find that a car is easy to suddenly shut down, its spark plugs are too old and need to be replaced.

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New and old spark plugs


In the process of running a car engine, timing is very important. Therefore, the valve is born to control the exhaust valve and open and close at the right time and release the most compact air. During compression and combustion, the valve of the valve is closed. Two periods later, the valve will be open to release air. The operating principle of the valve is usually based on the camshaft.

Valve valve of the car


This is the part that will coordinate with the valve to help the valve details work. Then, in the camshaft there will be cam tabs, which thanks to the thrust of the cylinder, push the valve valve open. Camshafts have two types of camshafts single and double. The purpose of the single valve is to control the opening and closing of the intake and exhaust valves simultaneously. In contrast, the twin valves are two separate axes and independent exhaust control.

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This is the part that helps the mechanical energy from reciprocating piston motion to rotation like a screw wheel and screw shaft. The purpose of such mechanical transformation will help other parts work well and synchronize all activities.


Gas distribution system

The components in the engine working together make the systems. Among them is the air distribution system, including the swingarm and camshafts. The camshafts help the valve to open and close steadily. Usually, the engine uses a camshaft on the engine cap. In addition, the system will have connecting rods to transmit the lifting force of the camshafts to the valves thanks to the lever mechanism.

Fuel system

The main task of this system is to provide a sufficient amount of fuel mixture including gasoline / oil and air into the cylinder. In the old days, engines often used carburetors to create the mixture of fuel in the engine. However, after the 1980s, the car engine was equipped with an electronic fuel injection system (EFI). With this new refueling system, the fuel blend ratio will reach the ideal threshold in the cylinders. In addition, EFI also helps to adjust the amount of gasoline according to its own operating mode.

Fuel system

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Power splitter

Almost everyone will know about car ignition systems. However, how to make that spark is a little-known problem. Well, then you will need a part called a power splitter. This unit has a high voltage line connected to the hub and has the number of wires connected to the spark plug corresponding to the number of the spark plugs. Thanks to such division of electricity, the cylinders will receive a steady amount of electricity in a cycle and at the right time to help optimize combustion.

Power divider diagram

Cooling system

To keep your engine cool and running smoothly, you need a quality cooling system. This detail includes a radiator, water pump and temperature sensor. The cooling water in the engine will circulate and go to the cooler.

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Power system

In the car system, the electrical system is very important. This system consists of batteries and generators, the electrical system used by the engine to turn the engine on and help maintain certain operations in the vehicle. In order to be able to reverse charge the battery, the generator will be operated while driving and to the appropriate rpm to generate electricity to recharge the battery.

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Lubrication systems

When the engine works, friction will be generated and parts are worn out. To minimize these problems to a minimum, a lubrication system was introduced. This system has the function of moving lubricating oil around the engine to prevent the wear and tear Car engine parts. Oil will be brought from the oil tank and through the high pressure filter to the cylinder wall and finally to the bottom of the crankcase for a new cycle.

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Lubrication systems

Minh Tan


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