There are several things that make up an engine, and what are the parts of the engine?

1. Composition: cylinder head, cylinder block and crankcase.

2. Function: As the assembly matrix of each mechanism and system of the engine, it is the skeleton of supporting and fixing the crank connecting rod mechanism and other devices, and the relevant parts of the tractor chassis form the frame of the tractor.

The body is the skeleton that constitutes the engine, is the installation foundation of the engine's various mechanisms and systems, and all the main parts and accessories of the engine are installed inside and outside to bear various loads. Therefore, the body must have sufficient strength and rigidity. The body group is mainly composed of parts such as cylinder block, cylinder liner, cylinder head and cylinder gasket.

Second, the crank connecting rod mechanism.

1. Composition: mainly including pistons, connecting rods, crankshafts, flywheels, etc.

2. Function: The motor has four strokes of air intake, compression, work and exhaust, in the work stroke, the crank connecting rod mechanism transforms the reciprocating motion of the piston into the rotary motion of the crankshaft, and outputs power to the outside world, and in the other three strokes, the rotary motion of the crankshaft is transformed into the reciprocating linear motion of the piston due to the action of inertia.

In general, the crank linkage is the mechanism by which the engine generates and transmits power. Through it, the thermal energy emitted after the combustion of the fuel is converted into mechanical energy.

3. Gas distribution mechanism and intake and exhaust system.

1. Composition: mainly including intake valves, exhaust valves, tappets, push rods, rocker arms, camshafts and camshaft timing gears (driven by crankshaft timing gears).

2. Function: make the combustible mixed gas into the cylinder in time and discharge the exhaust gas from the cylinder in time.

Fourth, the supply system and governor.

1. Composition: mainly including fuel tank, sedimentation cup, diesel filter, fuel pump, fuel injection pump and governor, etc.

2. Function: Timely, quantitatively, and under constant pressure the clean diesel is sprayed into the combustion chamber in the form of mist, and the fuel supply is automatically adjusted according to the load of the diesel engine to ensure the most economical and stable operation of the engine.

5. Starting device.

1. Composition: starter motor and its clutch mechanism, flywheel gear ring, starting switch, battery, etc.

2. Function: In order to make the stationary engine enter the working state, it is necessary to rotate the engine crankshaft with external force, so that the piston begins to move up and down, and the combustible mixture is inhaled in the cylinder, and then enters the subsequent working cycle in turn. And this external force system is the starting system.

6. Cooling system.

1. Composition: cooling jacket, water pump, thermostat, fan, radiator, water temperature gauge of cylinder block and cylinder head, etc.

2. Function: Disperse the heat of the heated parts into the air, delay the decline of the strength and hardness of the parts to cause deformation and damage, maintain the appropriate matching gap of the parts that match each other, avoid the deterioration of the lubricating oil by high temperature, and ensure the normal operation of the diesel engine.

Five systems, two institutions.

Answer 1, crank connecting rod mechanism: connecting rod, crankshaft, bearing, flywheel, piston, piston ring, piston pin, crankshaft oil seal; 2. Air distribution mechanism: cylinder head, valve chamber cover, camshaft, valve, intake manifold, exhaust manifold, air filter, muffler, three-way catalysis, supercharger, intercooler, etc.; 3. Cooling system:

It is generally composed of a water tank, a water pump, a radiator, a fan, a thermostat, a water temperature meter and a water discharge switch; (The automobile engine adopts two cooling methods, namely air cooling and water cooling, and the engine in the mainstream market of China's automobile is mostly water-cooled.) 4. Lubrication system: The engine lubrication system is composed of oil pump, filter, oil filter, oil channel, pressure limiting valve, oil gauge, pressure sensing plug and oil dipstick, etc.; 5. Fuel system:

The fuel system of gasoline engine is composed of gasoline tank, gasoline gauge, gasoline pipe, gasoline filter, gasoline pump, carburetor, air filter, intake and exhaust manifold, etc.; 6. Starting system: starter, ignition switch, battery; 7. Ignition system: spark plugs, high-voltage wires, high-voltage coils, distributors.

The engine is composed of two major mechanisms, the crank connecting rod mechanism and the valve mechanism, as well as five major systems: cooling, lubrication, ignition, fuel supply, and starting system.

1. Crank connecting rod mechanism, crank connecting rod mechanism is the main moving part of the engine to achieve the working cycle and complete the energy conversion. It is composed of a body group, a piston connecting rod group and a crankshaft flywheel group, etc.

2. The function of the valve mechanism is to open and close the intake and exhaust valves regularly according to the working sequence and working process of the engine, so that the combustible mixture or air enters the cylinder, and the exhaust gas is discharged from the cylinder to realize the ventilation process.

3. The function of the lubrication system is to deliver a certain amount of clean lubricating oil to the surface of the parts in relative motion, so as to achieve liquid friction, reduce friction resistance, and reduce the wear of parts.

4. The function of the cooling system is to dissipate part of the heat absorbed by the heated parts in time to ensure that the engine works at the most suitable temperature.

5. The function of the fuel supply system of the gasoline engine is to prepare a certain amount and concentration of mixture according to the requirements of the engine, supply it to the cylinder, and discharge the exhaust gas from the cylinder to the atmosphere.

6. Ignition system, in the gasoline engine, the combustible mixture in the cylinder is ignited by electric sparks, for which a spark plug is installed on the cylinder head of the gasoline engine, and the head of the spark plug extends into the combustion chamber.

Generally, it is composed of crank connecting rod mechanism, gas distribution mechanism, fuel supply system, lubrication system, cooling system, ignition system and starting system.

The components of the engine are:Internal combustion engines (reciprocating piston engines), external combustion engines (Stirling engines, steam engines, etc.), jet engines, electric motors, etc.

An engine is a machine capable of converting other forms of energy into mechanical energy, and an engine can be applied to both a power generator and an entire machine including a power unit. The cylinder head, cylinder block and crankcase in the engine are the assembly base of each mechanism and system of the engine, and are the skeleton of supporting and fixing the crank connecting rod mechanism and other devices, and the relevant parts of the tractor chassis form the frame of the tractor. The function of the valve mechanism and the intake and exhaust system is to make the combustible mixture be filled into the cylinder in time, and the exhaust gas is discharged from the cylinder in time.

In general, the current engine consists of two major mechanisms and five major systems.

1. Crank connecting rod mechanism.

The crank linkage mechanism is the main moving part of the engine to realize the working cycle and complete the energy conversion. It is composed of a body group, a piston connecting rod group and a crankshaft flywheel group, etc.

Second, the gas distribution mechanism.

The function of the valve mechanism is to open and close the intake and exhaust valves at regular intervals according to the working sequence and working process of the engine, so that the combustible mixture or air enters the cylinder, and the exhaust gas is discharged from the cylinder to realize the ventilation process. The opening and closing of the intake and exhaust valves are controlled by the camshaft. Camshafts are driven by a crankshaft through toothed belts or gears or chains.

The intake, exhaust valves and camshafts, as well as a number of other parts, work together to form the valve train.

3. Fuel supply system.

The function of the fuel supply system of the gasoline engine is to prepare a certain amount and concentration of mixed gas according to the requirements of the engine, supply it to the cylinder, and discharge the exhaust gas after combustion from the cylinder to the atmosphere;

Fourth, lubrication system.

The function of the lubrication system is to deliver a certain amount of clean lubricating oil to the surface of the parts in relative motion to achieve liquid friction, reduce frictional resistance, and reduce the wear of parts. and the surface of the part is cleaned and cooled. The lubrication system usually consists of a lubricating oil channel, an oil pump, an oil filter, and some valves.

5. Cooling system.

The function of the cooling system is to dissipate part of the heat absorbed by the heated parts in time to ensure that the engine works at a suitable temperature. The cooling system of a water-cooled engine usually consists of a cooling jacket, a water pump, a fan, a water tank, a thermostat, etc.

6. Ignition system.

In a gasoline engine, the flammable mixture in the cylinder is ignited by an electric spark, for which a spark plug is installed on the cylinder head of the gasoline engine, and the head of the spark plug protrudes into the combustion chamber. All equipment that can generate electric sparks between the spark plug electrodes on time is called an ignition system, which usually consists of a battery, a generator, a distributor, an ignition coil and a spark plug.

The spark plug has a central electrode and a side electrode, and the two electrodes are insulated from each other. When the DC voltage is added between the two electrodes of the spark plug and the voltage rises to a certain value, the gap between the two electrodes of the spark plug will be broken down to produce an electric spark, and the minimum voltage required to produce an electric spark between the two electrodes of the spark plug is called the breakdown voltage; All devices that can generate an electric spark between the two electrodes of the spark plug are called engine ignition systems.

7. Starting system.

It is not difficult to understand this, in order to make the engine transition from a stationary state to a working state, it is necessary to rotate the crankshaft of the engine with external force, so that the piston can reciprocate, and the combustible mixture in the cylinder burns and expands to work, and pushes the piston to move downward to rotate the crankshaft, so that the engine can run on its own and the working cycle can be carried out automatically. Therefore, the whole process from the crankshaft starting to rotate under the action of external force to the engine starting to idle automatically is called the starting of the engine. The device required to complete the starting process is called the starting system of the engine.

The engine is composed of two major mechanisms and five systems, the two major mechanisms are the valve mechanism, the crank connecting rod mechanism, and the five major systems are the ignition system, cooling system, lubrication system, starting system and supply system.

The engine is composed of cylinders, pistons, crankshafts, valves, connecting rods, etc.

The engine consists of five major systems and two major mechanisms. The following are the composition and functions of the five major systems and two major mechanisms of the engine: The five systems and functions of the engine:

Fuel supply system, cooling system, lubrication system, ignition system and starting system code base. The fuel supply system is mainly composed of fuel tank, oil pipe, pipeline and carburetor, and its role is to supply fuel. The cooling system is mainly composed of a water pump, a water tank and a cooling pipe to circulate the cooling water and will not damage the engine due to excessive temperature.

The lubrication system consists mainly of an engine oil pan, an oil filter, and a strainer. Its main function is to filter and lubricate engine crankshafts, connecting rods, pistons and other dates. So as not to burn out the engine by rubbing too hot.

The ignition system mainly consists of a high-voltage coil and a spark plug. Its function is to convert the low-voltage current of the battery into high-voltage electricity, and then make the spark plug contacts ignite the mixture. The starting system is mainly composed of a starter, which is connected to the engine flywheel.

There are two main mechanisms and functions of the engine: the crank linkage mechanism and the valve train. The crank linkage mechanism is composed of a crankshaft and a connecting rod, and its role is to convert the energy of the mixture into mechanical energy for transmission.

The function of the valve mechanism is to adjust the gas mixture in the cylinder according to the actual situation required by the car.

Composition of the engine of the car:

1. Crank connecting rod mechanism: connecting rod, crankshaft, bearing, flywheel, piston, piston ring, piston pin, crankshaft oil seal;

2. Air distribution mechanism: cylinder head, valve chamber cover, camshaft, valve, intake manifold, exhaust manifold, air filter, muffler, three-way catalysis, supercharger, intercooler, etc.;

3. Cooling system: generally composed of water tank, water pump, radiator, fan, thermostat, water temperature gauge and water discharge switch; (The automobile engine adopts two cooling methods, namely air cooling and water cooling, and the engine in the mainstream market of China's automobile is mostly water-cooled.) ）

4. Lubrication system: The engine lubrication system is composed of oil pump, filter, oil filter, oil channel, pressure limiting valve, oil gauge, pressure sensing plug and oil dipstick, etc.;

5. Fuel system: The fuel system of gasoline engine is composed of gasoline tank, gasoline gauge, gasoline pipe, gasoline filter, gasoline pump, carburetor, air filter, intake and exhaust manifold, etc.;

6. Starting system: starter, ignition switch, battery;

7. Ignition system: spark plugs, high-voltage wires, high-voltage coils, distributors.

Hello, the engine is made up of seven large blocks, each of which has its own function.

They are: 1. Body group.

Second, the crank connecting rod mechanism.

3. Gas distribution mechanism and intake and exhaust system.

Fourth, the supply system and governor.

5. Starting device.

6. Cooling system.

7. Lubrication system.