What are the two major mechanisms and five major systems of the car

Two major mechanisms: gas distribution mechanism and crank connecting rod mechanism.

The function of the air mechanism: according to the requirements of the working cycle and the firing sequence in each cylinder of the engine, the intake and exhaust valves of each cylinder are opened and closed regularly, so that the fresh charge can enter the cylinder in time and the exhaust gas can be discharged from the cylinder in time; During the compression and expansion strokes, the sealing of the combustion chamber is ensured.

The function of the crank connecting rod mechanism: to provide a combustion place, to convert the expansion pressure of the gas generated after fuel combustion on the top of the piston into the torque of crankshaft rotation, and to convert the heat energy emitted after fuel combustion into mechanical energy, and continuously output power.

Five systems: starting system, cooling system, lubrication system, ignition system (gasoline vehicles), and supply system.

The function of the fuel supply system of 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 exhaust the exhaust gas after combustion from the cylinder to the atmosphere.

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 state; 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.

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 friction resistance, and reduce the wear of parts; and clean and cool the surface of the parts; The lubrication system usually consists of a lubricating oil channel, an oil pump, an oil filter, and some valves.

In a gasoline engine, the combustible 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 extends 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.

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.

2 major mechanisms: crank connecting rod mechanism.

The five major systems include:

Fuel supply system, starting system, cooling system, lubrication system, ignition system.

Two major mechanisms: crank connecting rod mechanism, gas distribution mechanism;

Five systems: fuel supply system, lubrication system, cooling system, ignition system and starting system.

Cooling system, lubrication system, fuel supply system, starting system, ignition system.

The two major mechanisms are the crank connecting rod mechanism and the gas distribution mechanism, and the five major systems are the fuel supply system, lubrication system, cooling system, ignition system and starting system.

The engine is one of the most critical objects of the car, and the function of the engine affects the power performance and economic performance of the car.

The power of the engine is different, it can be divided into diesel engine, gasoline engine, hybrid engine, etc., the car with a diesel engine is called a diesel car, and the car with a gasoline engine is called a gasoline car.

At present, most vehicles use gasoline engines to provide power for automobiles, and the engine generally converts the chemical energy of the fuel into the mechanical energy of piston movement to provide power for the automobile, and the speed of the gasoline engine is high, but the economic performance and emission performance of the diesel engine are relatively good.

Two major mechanisms: valve mechanism, crank connecting rod mechanism five systems: lubrication system, cooling system, ignition system, starting system, fuel supply system.

Air Valve Mechanism, Crank Connecting Rod Mechanism, Ignition System, Fuel Co-feeding System, Starting System, Cooling System, Lubrication System. [Car questions, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

Gasoline engines are mainly divided into two major mechanisms and five systems.

2 major mechanisms(1) Crank linkage mechanism.

2) Gas distribution mechanism.

The five major systems include: fuel supply system, starting system, cooling system, lubrication system, and ignition system.

The four major systems are for the chassis, namely: transmission system, driving system, steering system, and braking system.

1. Transmission system.

The automotive transmission system mainly refers to the engine of the car.

The power transmission device between the driving wheel and the driving wheel mainly includes the clutch and transmission.

Universal joints, drive shafts, differentials.

Final reducer and half shaft, etc. The picture below shows the drivetrain of a front-mounted rear-wheel drive vehicle. To put it simply, the power output of the front engine is successively transmitted to the rear drive wheels through the clutch, transmission, universal joint, transmission shaft, differential, final reduction and half shaft to make the wheels turn.

The five major systems are the starting system, lubrication system, cooling system, fuel supply system, and ignition system.

2. Steering system.

Automobile steering system mainly refers to a series of devices used to change or maintain the direction of the car moving or reversing, mainly including the steering wheel.

Steering shafts, steering machines, tie rods, etc. To put it simply, the force of turning the steering wheel is transmitted to the tie rod through the steering shaft and steering machine to change the direction of the wheels and realize the steering function.

3. Brake system.

Automobile braking system mainly refers to a series of specialized devices that exert a certain force on certain parts of the car (mainly the wheels) to prevent the movement or movement trend of the vehicle, mainly including the brake pedal.

Vacuum booster pumps, brake master cylinders, brake pipes, brakes, etc. To put it simply, the foot exerts force on the brake pedal, and the brake works to produce friction through transmission, and then converts the kinetic energy of the car into heat energy to achieve the purpose of driving braking.

4. Driving system.

The automobile driving system mainly refers to the device that bears various static and dynamic loads from the car and the ground to ensure the normal movement of the car, mainly including the frame, axle, suspension and wheels. To put it simply, it is an automobile structure that mainly plays a supporting role in order to ensure the normal driving of the car.

Vehicle Identification**.

Vehicle identification** has global universality, maximum information carrying capacity and retrievability, and has become the only "ID card" for identifying vehicles in the world.

The vin consists of a set of letters and Arabic numerals.

composition, a total of 17 people.

From the VIN it is possible to identify the country of production, manufacturing company or manufacturer, vehicle type, brand, model series, body form, engine model, model year, safety guard model, inspection number, assembly plant name, factory serial number, etc.

When each vehicle is marked with VIN, its code will accompany the registration, insurance, annual inspection, maintenance, repair and scrapping of the vehicle.

Clutch voice changer steering machine.

The following is an introduction to the composition and function of the two major mechanisms and the five major systems: 1. Two major mechanisms: (1) Crank connecting rod mechanism: provide a combustion place to convert the expansion pressure of the gas generated after fuel combustion acting on the top of the piston into a crankshaft.

The rotational torque converts the heat energy emitted by the combustion of the fuel into the energy of the machine.

Constant power output. (2) Gas distribution mechanism: fill the fresh gas into the cylinder in time and discharge the exhaust gas generated by combustion into the cylinder in time. 2. Five major systems: (1) Cooling system: cooling water for Liyou sale.

The heat from the high-temperature parts is dissipated into the atmosphere through the radiator, thereby maintaining the normal operating temperature of the engine's electric. (2) Lubrication system: The lubricating oil is distributed to the friction surface of the relatively moving parts to reduce the friction force.

Slows down wear and tear and cleans and cools friction surfaces. (3) Ignition system: ignite the compressed combustible mixture in the gas cylinder at the specified time.

4) Starting system: start the stationary engine and turn it into self-running. (5) Fuel supply system:

Due to the different fuels used, it can be divided into gasoline engine fuel supply system and diesel engine fuel supply system. Millions of car purchase subsidies.

Car enginesThe two major institutions are:Crank linkage mechanism, gas distribution mechanism. The five major systems are the starting system, the fuel supply system, the cooling system, the lubrication system, and the ignition system.

The details are as follows:

Crank connecting rod mechanism: The crank connecting rod is an important component of the automobile engine to realize the working cycle and complete the energy conversion, which is composed of the body group, the piston buried rod group and the crankshaft.

Flywheel group, etc.

Valve 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 achieve the ventilation process.

Starting system: The whole process from the crankshaft turning under the action of external force to the engine starting to idle automatically is called the starting of the engine, and the device required to complete the starting process is called the starting system of the engine.

Fuel supply system: gasoline engine.

The function of the fuel supply system is to prepare a certain number of bends and concentrations of mixed gas according to the requirements of the engine, supply it to the cylinder, and discharge the flight after combustion from the cylinder.

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

and other components.

Lubrication system: The function of the lubrication system is relative motion.

A certain amount of lubricating oil is delivered to the surface of the parts to achieve liquid friction, reduce frictional resistance, and reduce the wear of the parts.

Ignition system: The ignition system is usually composed of parts such as generators, batteries, distributors, ignition coils, and spark plugs.

It is composed of 2 major mechanisms and 5 major ingenious systems: crank connecting rod mechanism; cam valve mechanism; fuel supply system; cooling system; lubrication system; ignition system (gasoline engine); Starter system.

1. The function of the crank connecting rod mechanism is to provide a combustion place, and convert the expansion pressure of the gas generated by fuel combustion on the top of the piston into the torque of the crankshaft rotation, and continuously output power.

1) Converts the pressure of the gas into torque of the crankshaft.

2) Change the reciprocating motion of the piston into the rotational motion of the crankshaft.

3) The force of combustion acting on the top of the piston is converted into torque of the crankshaft to output mechanical energy to the working machine.

2. The cam valve mechanism opens and closes the intake and exhaust valves of each cylinder at regular intervals, so that the fresh combustible mixture (gasoline engine) or air (diesel engine) can enter the cylinder in time, and the exhaust gas can be discharged from the cylinder in time.

3. Cooling system: generally composed of water tank, water pump, radiator, fan, thermostat, water temperature gauge and water discharge switch. There are two types of cooling for automobile engines, namely air cooling and water cooling. Generally, automobile engines are mostly cooled by water.

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

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.

Yan said noisily that the engine should be divided into three major institutions and five major systems or six major systems

Three major mechanisms: crank connecting rod oil, valve mechanism and transmission mechanism;

Five major systems: fuel supply system, cooling system, lubrication system, ignition system (electronic control system) and starting system.

In the case of a booster model, there is also a booster system (supercharger, intercooler, etc.).