Similarities and differences between the fuel supply system of automobile gasoline engine and diesel

Gasoline engine: The oil is sucked out from the fuel tank by the built-in oil pump, filtered to the pulsation reliever, and the smooth fuel is supplied to the fuel supply frame, part of which is sprayed into the cylinder for combustion, and part of it is adjusted according to the vacuum behind the throttle valve The opening of the oil pressure regulator flows back to the fuel tank, so that the fuel maintains a good and stable supply during operation.

Diesel engine: Since diesel is compression-ignition and the pressure in the cylinder is high, the fuel injected into the cylinder is required to have a higher pressure. In order to achieve this effect, the most critical thing in the diesel supply system is the "high-pressure oil pump" to achieve the purpose of injecting high-pressure diesel.

This is the pump in the "school oil pump" that you usually see on the market.

The fuel supply of the gasoline engine is to mix gasoline and air in proportion and send it to the cylinder, and then burn it by spark plugs to complete the work.

The fuel supply of the diesel engine is to send the atomized very fine diesel into the cylinder, and the air in the cylinder is compressed to a temperature sufficient to make the atomized diesel burn when the engine is working, so that the diesel burns and completes the work.

Gasoline engine. The fuel supply system generally consists of the following devices:

1.Fuel supply device. i.e. gasoline tank, gasoline filter, gasoline pump, oil pipe. It is used to complete the work of gasoline storage, filtration and transportation.

2.Air supply device. i.e. air filter.

Some car engines are also equipped with intake preheating and mufflers.

2.Combustible mixture formation device. i.e. carburetor.

3.Combustible mixture supply and exhaust gas exhaust device. i.e. intake pipes, exhaust pipes, and exhaust mufflers.

The fuel supply system of gasoline engine is generally composed of three parts.

Part 1 Injector Fuel Pump.

Part II: ECU Sensors.

Part III Pipeline.

How it works: The sensor sends a signal to the ECU. The ECU controls the operation of the fuel pump as well as the injector.

The function of the gasoline engine fuel supply system is to configure the initial amount and concentration of combustible mixture according to the working needs of the engine, and send it to the cylinder fuel supply system, there are two types of carburetor type and electronically controlled fuel injection type.

Carburetor type, the fuel supply system generally consists of a gasoline tank, a gasoline pump, and a gasoline filter. Carburetor air filter. through the exhaust device, etc. (The system has been phased out).

The electronically controlled fuel injection fuel supply system consists of an air supply system, a fuel supply system and an electronic control system.

The fuel supply system of a gasoline engine is mainly composed of a fuel tank, a fuel delivery tank, a fuel transfer pump, a carburetor, etc. The fuel supply system of diesel engine is mainly composed of fuel tank, oil pipeline, oil pump, high-pressure oil mercury, high-pressure oil pipe, fuel injection nozzle, oil return pipe, etc.

The function of the fuel supply system of the gasoline engine is mainly to supply the engine cylinder with a certain concentration and quantity of combustible mixture according to the different requirements of the engine's working conditions, and discharge the exhaust gas generated after the engine combustion power stroke into the atmosphere after a certain treatment.

There are two main forms of gasoline engine fuel supply system: carburetor type gasoline engine fuel supply system and gasoline injection fuel supply system. The carburetor fuel supply system has been widely used in automobiles due to its simple structure, easy to use and low cost, but the main disadvantage of carburetor engine is that the filling and mixture distribution are not ideal.

It has a certain adverse effect on the improvement of engine dynamics, economy and emissions. As a result, Hyundai is largely out of use.

1.The basic composition of the carburetor fuel supply system, its main structure includes the following five parts:

1) Gasoline supply device: It is composed of a gasoline tank, a gasoline filter, a gasoline pump and a gasoline pipe, which is mainly used for gasoline storage, transportation and cleaning.

2) Air supply device: the main structure is the air filter, and some engines are also equipped with intake preheating device, which is mainly used for air delivery, cleaning and preheating.

3) Combustible mixture forming device: that is, carburetor, which is used to form a combustible mixture of air and fuel.

4) Combustible mixture supply and exhaust gas discharge device: It is composed of inlet and exhaust pipes and exhaust mufflers, which are mainly used for the supply, exhaust silence and exhaust gas discharge of combustible mixture.

5) Oil storage indication device: It is mainly composed of fuel gauge, oil level sensor and other components, which is mainly used to display the oil storage status.

2.Composition of an electronically controlled gasoline injection system.

Although there are various forms of electronically controlled gasoline injection systems, they all follow the same control rules, that is, the electronic control unit (ECU) is the control core, the air flow and engine speed are the control basis, and the fuel injector is the control object to ensure that the engine obtains the best mixture concentration under various working conditions to meet the requirements of engine power, economy and emissions. The same control principle determines that the basic composition and structure of the fuel supply system of various electronically controlled gasoline injection engines are similar. Generally speaking, the fuel supply system of electronically controlled gasoline injection engine consists of three parts: air supply system, fuel supply system and electronic control system.

1) Air supply system The air supply system mainly includes the intake system and the exhaust system, which is composed of an air filter, an air flow meter, a throttle valve, an intake manifold, an intake manifold and an idle air control valve.

2) Gasoline supply system The gasoline supply system is mainly composed of a gasoline tank, an electric fuel pump, a fuel filter, a fuel pressure pulsation damper, a fuel pressure regulator, an injector and a fuel pipeline.

3) Electronic control system The electronic control system is mainly composed of three parts: sensor, ECU and actuator.

The function of the fuel supply system of gasoline engine is to prepare a certain amount and concentration of combustible mixture according to the requirements of different working conditions of the engine, supply it to the cylinder, and exhaust gas is discharged into the atmosphere after combustion.

Gasoline engine fuel supply system (Fig. 101) – generally consists of a gasoline supply unit. The gasoline supply device includes a gasoline tank, a gasoline filter, a gas pump, and a fuel pipe. Its role is to complete the storage, filtration and delivery of gasoline.

Air supply device. The air supply device includes an air filter. Its function is to filter dust and sand particles in the air, reduce the wear and tear of engine parts, and prolong the life of the engine.

Combustible mixture formation device. The function of the combustible mixture forming device is to mix clean gasoline and air to form a combustible mixture of good quality.

Combustible mixture supply and exhaust gas exhaust device. The combustible mixture and exhaust gas exhaust device consists of an intake manifold, an exhaust manifold and an exhaust muffler. Its function is to evenly convey the combustible mixture prepared by the carburetor to each cylinder, and collect the exhaust gas after the combustion of each steam nail and discharge it through the muffler.

1.The function is to prepare a certain amount of prismatic combustible mixture according to the needs of the engine and send it into the cylinder.

2.Fuel supply system consists of: fuel tank, oil pipe, fuel pump, fuel filter, air filter, fuel pressure regulator, fuel injector, cold start injector, oil pressure pulse attenuator, air intake pipe, exhaust pipe, etc.

The function is to prepare a certain amount and concentration of combustible mixture according to the working needs of the engine and send it to the cylinder fuel supply system, there are two types: carburetor type and electronically controlled fuel injection type. The carburetor fuel supply system is generally composed of a gasoline tank, a gasoline pump, a gasoline filter, a carburetor, an air filter, an intake and exhaust device, etc. (the system has been eliminated): the electronically controlled fuel injection fuel supply system consists of an air supply system, a fuel supply system and an electronic control system.

The function of the gasoline engine fuel supply system is to prepare a certain amount and concentration of combustible mixture according to the working needs of the engine and send it to the cylinder fuel supply system, there are two types of carburetor type and electronically controlled fuel injection type. The carburetor fuel supply system is generally composed of a gasoline tank, a gasoline pump, a gasoline filter, a carburetor, an air filter, an intake and exhaust device, etc.

What is the role of the car, gasoline engine, fuel supply system? What are the components? The function of the automobile and gasoline fuel supply system is to supply engine pigment and convert it into kinetic energy, from the fuel tank oil pump to the carburetor, vaporizer, and fuel injector into the combustion chamber to convert kinetic energy.

The role of the fuel supply system of the automobile gasoline engine must be to supply the fuel to the engine to burn and generate power. At the very least, there are fuel tanks, oil pump pipes, and there are game igniters, and some wiring components.

Fuel tank (oil storage) - fuel pump (fuel supply) - fuel filter (pressure regulation, excess oil back to the mailbox) - fuel supply track - fuel injector (injection); The function is mainly to supply a certain concentration and quantity of combustible mixture gas to the engine cylinder according to the different requirements of each working condition of the engine, and discharge the exhaust gas generated after the engine combustion power stroke into the atmosphere after a certain treatment.

The fuel supply system consists of a fuel pump, a fuel filter, a fuel pressure regulator, an injector, a cold-start injector, and an oil pressure pulse attenuator. An electric fuel pump provides a certain amount of pressure fuel to the electronically controlled fuel injection system.

The function of the automobile gasoline engine fuel supply system is to provide fuel for the car, and the components that provide the necessary power are composed of spark plugs, gasoline filters and hoses and other related connections.

The task of the gasoline engine fuel supply system is to prepare a certain amount and concentration of combustible mixture according to the requirements of various working conditions of the engine, and supply it to the cylinder, so that it can be ignited and burned and expand to do work when it is close to the end of compression, and finally the supply system should also discharge the combustion products and exhaust gases into the atmosphere.

The engine fuel supply system is mainly composed of the following parts: fuel tank (oil storage) - fuel pump (fuel supply) - fuel filter (pressure regulation, excess oil back to the mailbox) - fuel supply track - fuel injector (injection).

The fuel pump sucks out the diesel fuel from the fuel tank, filters out impurities through the filter and enters the low-pressure oil chamber of the fuel injection pump, after the fuel pressure increases, it is transported through the high-pressure oil pipe, only the fuel injector is of course under pressure, reaching a certain value, and the fuel injector sprays the fuel into the combustion chamber in the form of a mist. After forming the mixture and combustion, the exhaust gas is discharged through the exhaust device.

According to the requirements of different working conditions of the engine, a certain amount and concentration of combustible mixture is configured, supplied to the cylinder, and the combustion is discharged into the atmosphere: the carburetor is composed of a gasoline tank, a gasoline pump, a gasoline filter, etc. Electronically controlled fuel injection consists of an air supply system, a fuel supply system and an electronic control system.

The function of the fuel system is to supply a certain amount of clean and well-atomized gasoline to the engine according to the needs of the engine's operating conditions, so as to mix with a certain amount of air to form a combustible mixture.

The function of the gasoline engine fuel supply system is to supply the engine cylinder with a certain concentration and quantity of combustible mixture according to the different requirements of the engine's working conditions, and discharge the exhaust gas generated after the engine combustion power stroke into the atmosphere after a certain treatment.

Oil pump, gasoline filter, fuel line injector, direct injection in the cylinder and high-pressure oil pump, fuel pressure sensor, fuel pressure regulating valve.

According to the requirements of various working conditions of the engine, a certain amount and concentration of combustible mixture is prepared and supplied to the cylinder, so that it can be ignited and burned and expanded to do work when it is near the end of compression. Finally, the supply system should also exhaust the combustion products – the exhaust gases – into the atmosphere.

What is the role of the car, gasoline engine, fuel supply system? What are the components? The fuel pump is to deliver fuel at regular intervals, and the high-pressure pump is to increase the pressure of the fuel**.

The most important component of a car is the engine. The fuel supply system is the most important component of the engine. The quality of a car has a lot to do with the engine.

According to the working needs of the engine, a certain quantity and concentration of combustible mixture is prepared and sent to the cylinder fuel supply, and the system has two types: carburetor type and electronically controlled fuel injection type.

The main role of the automobile gasoline engine fuel supply system is to provide enough clean air and fuel to the engine.

The combustion supply system of automobiles and gasoline engines is used to convert heat energy into kinetic energy.

You don't know too much about these, it's okay, if there's any problem. You can go to the repair department and he will fix it for you.

The diesel engine fuel supply system is composed of four parts: fuel supply, air supply, mixture formation and exhaust gas discharge.

1) The fuel supply system is composed of diesel tank, fuel pump, low-pressure oil pipe, filter, fuel injection pump, high-pressure oil pipe, fuel injector and oil return pipe.

2) The air supply consists of an air filter, an air intake pipe, etc. Some also have superchargers.

3) The mixture forms a combustion chamber.

4) The exhaust gas supply is composed of an exhaust pipe and an exhaust muffler.

5) Fuel supply routes.

1) The low-pressure oil circuit is from the diesel tank to the inlet of the fuel injection pump, and the oil pressure is generally.

2) The high-pressure oil circuit is from the injection reed oil pump to the injector, and the oil pressure is above 10MPa.

3) The fuel supply of the excess fuel return fuel pump is 3 4 times larger than the maximum fuel injection volume of the fuel injection pump, and a large amount of excess fuel flows back to the inlet of the fuel pump or directly flows back to the diesel tank through the pressure limiting valve and the return pipe at one end of the fuel injection pump inlet chamber. The very small amount of diesel fuel leaking from the injector operating gap also flows back to the diesel tank through the return pipe.

4) There are two kinds of diesel filters, coarse and thin, generally the primary filter is located before the oil pump, and the fine filter is located after the oil pump.

5) In order to ensure the consistency of the oil supply of each cylinder, the diameter and length of the steel high-pressure oil pipe connecting the fuel injection pump and the fuel injection device are equal.