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Basic structure of internal combustion engines

Overview The engine body is the framework that constitutes the engine, serving as the foundation for the installation of various mechanisms and systems. It is equipped with all the main components and accessories of the engine, both inside and outside, and bears various loads. Therefore, the body must have sufficient strength and stiffness. The body assembly is mainly composed of parts such as cylinder block, cylinder sleeve, cylinder head, and cylinder gasket.

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Basic parameters of internal combustion engines

displacement First, let's take a look at the most common engine parameter - engine displacement. The engine displacement is the total working volume of each cylinder in the engine, usually expressed in liters (L). The working volume of a cylinder refers to the volume of gas swept by the piston from top dead center to bottom dead center, also known as the single cylinder displacement, which depends on the cylinder diameter and piston stroke. Engine displacement is a very important engine parameter, which better represents the size of the engine than cylinder diameter and number. Many indicators of the engine are closely related to the displacement. Generally speaking, the larger the displacement, the greater the engine output power.

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Classification of engines

External combustion engine External combustion engine, which means its fuel burns outside the engine, was invented by R. Stirling of Scotland in 1816, and is also known as Stirling engine. The engine converts the heat generated by combustion into kinetic energy, and Watt's improved steam engine is a typical external combustion engine. When a large amount of coal burns to generate heat and heat water into a large amount of steam, high pressure is generated, which in turn drives the machinery to do work, thus completing the transformation from thermal energy to kinetic energy. internal-combustion engine

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The engine is the power source of a car. Most car engines are thermal power devices, abbreviated as thermal engines. A thermal engine converts the thermal energy generated by fuel combustion into mechanical energy through changes in the state of the working fluid. In 1876, German Nicolaus A. Otto invented a reciprocating piston four stroke gasoline engine based on atmospheric pressure engines. Due to the use of four strokes of intake, compression, power generation, and exhaust, the thermal efficiency of the engine has increased from 11% of atmospheric pressure engines to 14%, while the engine's mass has decreased by 70%.

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What is the working principle of a car engine

The working principle of a car engine is to convert chemical energy into mechanical energy. twelve million three hundred and forty-five thousand six hundred and seventy-eight

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The steps for disassembling a cylinder head usually include

The disassembly steps of the cylinder head are as follows: 1. Remove the bolts of the valve cover, remove the valve cover and oil deflector cover;

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