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Automobile engine knowledge: Necessary knowledge inventory Automobile engines are Arena Plus loginthe "heart" of automobiles, which is the source of automobiles, so the importance of familiarity with automobile engines is self-evident. This article will introduce the necessary knowledge of automobile engines, so that everyone can have a more comprehensive and in-depth understanding of automobile engines.I. The working principle of the engine 1. The fuel oil engine is fueled by gasoline and supplied to the engine through the fuel system, including fuel tanks, fuel pumps, fuel filters, etc. Two. The gas route in the gas engine is generated from the cylinder and input and output through the exhaust and intake pipes. The gas in the cylinder should complete the compression and combustion reaction in the combustion chamber, and then expand in the cylinder, causing the piston to move down to generate power. II. Components of the engine 1. Cylinder block is one of the most important components of the engine. It is usually made of cast iron, aluminum alloy and other materials. It is used to accommodate cylinder liners and pistons, supporting crankshafts, swing arm shafts, etc. Two. The crankshaft is the main shaft of the engine, which is composed of several large camshafts. It uses compressed mixed gas to generate kinetic energy and rotates towards the gearbox. The curved bearing carries all the rotational properties of the engine, so it must have sufficient strength and rigidity.3. The piston piston acts as a connector of the crankshaft, so that the gas is pushed in turn. The volume of the piston must be adapted to the inner diameter of the cylinder block in order to form a tight and suitable closed area in the cylinder. Four. The valve and camshaft valve act as a traffic pipeline for fuel and air in and out of the cylinder. It is driven by a camshaft used to control the valve switch. The camshaft is usually located in the center of Crankcase, connecting the engine and rotating with the operation of the engine. 5. Fuel injector The fuel injector is usually composed of a solenoid valve, an injector and an injector, which is mainly responsible for starting, supplying, atomizing and other pressure treatments for fuel, and injecting the fuel into the cylinder. III. Engine maintenance and troubleshooting 1. Normal engine maintenance The maintenance frequency of normal engines is generally carried out every 10,000 kilometers or once a year. Routine maintenance includes oil replacement, in-cylinder cleaning, replacement of spark plugs, air filters and other parts.Two. Engine troubleshooting (1) Difficulty in starting Difficulty in starting is usually caused by poor fuel quality, damage to the ignition system, blockage of the fuel transmission system and other reasons. When troubleshooting, you can check whether the ignition system, oil road is normal, etc. ( 2) Unable to start the car after heating, the inability to start the car is usually caused by excessive gasoline vapor pressure, fuel leakage and other reasons. When troubleshooting, you can check whether the ignition system and gasoline circuit are normal. ( 3) Noise at low throttle is usually caused by air filter blockage, insufficient engine air intake and other reasons. When checking the fault, you can check whether the air filter and air intake path are normal. ( 4) Excessive fuel consumption is usually caused by ignition system problems or oil leakage and other reasons. When checking for faults, you can check whether the ignition system is normal and whether the oil is leaking.In a word, it is very necessary for drivers to understand the basic principles and components of car engines. Engine maintenance common sense and troubleshooting methods must also be familiar to ensure the safety and driving efficiency of the car.

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