What is the use of a car s oil pump? What is the function of a car oil pump?

As the most basic component of the engine fuel supply system, the fuel pump is responsible for pumping the fuel out of the fuel tank during the engine working process, and continuously transporting it to the engine through the oil supply pipeline at a certain pressure, and then pressurized by the high-pressure oil pump for the second time, and providing a certain amount of fuel for each cylinder according to the working order of the engine.

The function of the electric gasoline pump is to supply the fuel required by the injectors and the cold-start DU injectors. There are generally two types of electric gasoline pumps applied in electronically controlled gasoline injection systems, namely roller type electric gasoline pumps and vane type electric gasoline pumps. Roller type electric gasoline pump, one end of the pump casing is the oil inlet, the other end is the oil outlet.

The roller pump on the side of the inlet is driven at high speed by a drive motor in the middle of the pump casing.

Provide sufficient fuel pressure to the vehicle's fuel system.

What does a car oil pump do?

The automobile oil pump is divided into two parts: the oil pump and the gasoline pump, of which the oil pump is installed inside the engine. The oil pump transports the oil to the various parts of the engine, especially the parts that are to be rubbed against each other, so that the oil can be lubricated between these parts, which ensures that the engine is well lubricated.

Engines work better when they have a reason to lubricate, and we all know that the engine in a car is a tool that provides power. So its lubricity is important. The structure of the oil pump is a multi-gear pump, and when the engine starts, the camshaft will drive the driving gear of the electric diaphragm pump body to start rotating.

At this time, the gear slinger oil is transported along the pump body wall from the inlet to the outlet. In this process, a low pressure is invisibly created, resulting in a pressure difference, which produces a huge suction force that sucks the oil from the oil tank into the oil inlet.

When more and more oil is sent to the outlet oil, the pressure increases, and the oil is transported to the various friction parts, so that an infinite cycle is realized. The gasoline pump is the pump body installed in the fuel tank, which realizes the transportation of fuel to the generator and provides power for the car to drive.

The function of the gasoline pump is to suck the gasoline out of the tank and press it through the line and the gasoline filter into the float chamber of the carburetor.

It is thanks to the petrol pump that the petrol tank can be placed in the rear of the car, away from the engine, and below the engine.

Gasoline pumps can be divided into two types: mechanically driven diaphragm type and electric drive type according to different driving modes. The mechanically driven diaphragm gasoline pump is generally driven by the eccentric wheel on the camshaft, and its working condition is:

During the rotation of the camshaft, when the eccentric wheel tops the rocker arm and pulls down the pump membrane rod, the pump membrane descends, generating suction, and the gasoline is sucked out of the fuel tank, and enters the oil chamber of the gasoline pump through the oil pipe, gasoline filter.

When the eccentric wheel rotates at a certain angle and no longer pushes the rocker arm, the pump membrane spring is extended, and the pump membrane rises to press the gasoline from the outlet valve to the float chamber of the carburetor.

Generally, the maximum fuel supply of the gasoline pump is twice the maximum fuel consumption of the gasoline engine. When the pump oil volume is greater than the oil consumption and the carburetor float chamber needle valve is closed, the pressure in the oil outlet line of the oil pump increases, which reacts to the oil pump, shortening the diaphragm stroke or stopping the work.

There is also an electric gasoline pump, which is not driven by the camshaft, but by electromagnetic force to repeatedly suck the pump membrane. This electric pump allows for a free choice of installation position and prevents air blockage.

The gasoline pump of the electronically controlled gasoline injection system generally adopts a new type of impeller electric pump, and is installed in the gasoline tank, and its pumping pressure is also higher than that of the gasoline pump of the carburetor fuel supply system.

The main purpose of the pump The pump is mainly used to transport liquids including water, oil, acid and alkali, emulsion, suspension emulsion and liquid metal, etc., and can also convey liquids, gas mixtures and liquids containing suspended solids.

The function of the oil pump is to pressurize the oil in the oil pan to the oil filter and various lubricating oil channels after pressurization, so as to lubricate the main moving parts of the engine and filter the oil.

When the engine is working, the oil pump works continuously, so as to ensure that the oil is continuously circulated in the lubricating oil circuit. In all kinds of engine conditions, the oil pump should ensure that the supply of sufficient lubricating oil is supplied. Since the speed of the oil pump is directly proportional to the engine speed, the oil pump has the worst supply capacity at low speeds.

Therefore, the design should consider that the oil pump has sufficient oil supply at low speeds.

The cycloidal rotor pump system adopts the structure of internal and external rotor meshing, with a small number of teeth, compact structure size, and can form a sealing cavity without the help of other isolation elements, and its number of parts is small. For the general involute gear pump, if the speed is too high, the effect of centrifugal force will lead to insufficient oil filling of the tooth valley to form a "cavitation", so that the efficiency of the pump decreases, therefore, its speed rarely exceeds 3000rpm, and the circumferential speed is within 5 6m s.

For the cycloidal rotor pump, the angle range of suction and discharge is large, and when rotating at high speed, the centrifugal force is conducive to the filling of oil in the tooth valley, and will not produce harmful "cavitation" phenomenon, therefore, the speed range of the cycloidal rotor pump can be from several hundred to nearly 10,000 revolutions.

The function of the gasoline pump is to suck the gasoline out of the tank and press it into the float chamber of the carburetor through the pipeline and the gasoline filter. Thanks to the petrol pump, the petrol tank can be placed at the rear of the car, away from the engine, and below the engine.

Electric fuel pumps are an important part of the electronic gasoline injection system of automotive engines. Its basic function is to supply a certain amount of pressure fuel to the engine's fuel injection system. Therefore, from this point of view, we can find that the quality of the electric fuel pump and the quality of the working condition will directly affect the working condition of the fuel injection system of the whole vehicle, and also greatly affect the fuel injection quality and the power and fuel economy performance of the whole vehicle, and have a huge impact on the performance of the entire car.

The oil pump is now an electronic gasoline pump, which mainly pumps fuel and provides fuel pressure to make the engine start running normally, I hope it will help you!

Its function is to pump the oil from the oil tank into the engine, and burn it in the engine to generate power.

The so-called oil pump is to pump oil, and the gasoline pump is to pump the gasoline of the fuel tank to the fuel injector.

The oil pump is the power source of the entire hydraulic system of the automatic transmission, which is generally directly driven by the engine. All automatic transmissions have a front pump driven by the engine, and some also have a rear pump driven by the output shaft. Commonly used oil pumps are internal gear oil pumps, rotor oil pumps and vane oil pumps.

There are two oil pumps in the gearbox, and the two oil pumps are installed in an assembly, separated by a partition in the middle, and work at the same speed, and the speed is the same as the engine. The main oil pump supplies oil to the entire system, while the return pump is only responsible for pumping the oil from the torque converter oil bottom back to the transmission oil bottom without pressure. The main oil pump is much wider than the return oil pump and has two oil circuits.

One way is lubrication, and the supply is the friction plate and clutch plate of each gear of the gearbox. The other way is to change gears. It also has the effect of reducing the oil temperature, and mainly supplies the pressure regulating device.

The transmission supplies oil to maintain sufficient compensation pressure and flow to ensure that the hydraulic components complete the function of transmitting power. Prevent cavitation caused by the torque converter and take away the heat of the torque converter in time to maintain the normal working temperature.

Hello. Automobile oil pump generally refers to the fuel pump, which is to turn the low-pressure fuel in the fuel tank into high-pressure fuel through pressurization, and transmit it to the injector for fuel injection.

The function of the automobile oil pump is mainly responsible for supplying the oil in the fuel tank to the combustion chamber, so as to convert thermal energy into kinetic energy.

The role of the gasoline pump is to suck the gasoline out of the tank and pressure it through the line and the gasoline filter into the float chamber of the carburetor.

Put the oil in the tank into the pressurized channel injector.

The electric fuel pump is an important component of the electronic gasoline injection system of an automobile engine.

Its basic function is to supply a certain amount of pressure fuel to the engine's fuel injection system.

Therefore, from this point of view, we can find that the quality of the electric fuel pump and the quality of the working condition will directly affect the working condition of the fuel injection system of the whole vehicle, and also greatly affect the fuel injection quality and the power and fuel economy performance of the whole vehicle, and have a huge impact on the performance of the entire car.

Although the electrification of automobiles has become an irreversible trend, the main power of automobiles** is still the traditional fuel engine. For fuel engines, our general focus is basically on mechanical components such as pistons and cylinders, as well as electronic control units such as ignition and gas distribution, and few people have learned about the fuel supply system, especially the fuel pump at the front end of the fuel supply system. So below, let's take you to understand the role of fuel pump and how it works.

The role of the fuel pump.

As the most basic component of the engine fuel supply system, the fuel pump is responsible for pumping the fuel out of the fuel tank during the engine working process, and continuously transporting it to the engine through the fuel supply pipeline at a certain pressure, and then pressurized by the high-pressure oil pump for the second time, and providing a certain amount of fuel for each cylinder according to the working order of the engine.

The working principle of the car fuel treasure.

At present, vane electric fuel pumps are mostly used in automobiles. Vane type electric fuel pump has the advantages of large pump oil volume, high pump oil pressure, stability, low noise and long life.

This form of fuel pump relies mainly on an electric motor to drive the turbine blades to rotate and relies on centrifugal force.

The fuel is sucked in from the inlet hole and discharged through the outlet hole.

The role of the fuel pump is to pump the fuel out of the fuel tank during the working process of the engine, and continuously transport it to the engine through the oil supply pipeline at a certain pressure, and then pressurize it again by the high-pressure oil pump, and provide a certain amount of fuel for each cylinder according to the working order of the engine. At present, vane electric fuel pumps are mostly used in automobiles, and vane electric fuel pumps have large oil volume, high pump oil pressure, stability, low noise and long life. When the fuel pump of the vehicle that has been used for a long time is troubleshooting, the fuel pump can not be dry tested, because when the fuel pump is removed, due to the remaining fuel in the pump casing, during the power-on test, once the brush and the commutator are in poor contact, a spark will be generated to ignite the fuel in the pump casing.

The functions of the high-pressure oil pump are: 1. It can increase the fuel pressure and make the fuel fully combusted; 2. It can be sprayed with high pressure to achieve better atomization effect; 3. It can be used as the power source of the hydraulic device of jack, header, extruder and tie-flower machine.

The fuel pump draws fuel from the mailbox to the engine;

The lubrication pump provides lubricating oil pressure and flow to the engine.

There are several types of oil pumps.

1. The direction booster oil pump is mainly to provide high-pressure oil for the direction machine.

2. Gasoline pump provides sufficient fuel pressure for the fuel system when the car starts.

3. Gearbox oil pump provides sufficient pressure for automatic gearbox pipeline.

4. Oil pump provides sufficient oil pressure for the engine lubrication system.

The function of the automobile oil pump is very simple, that is, to pump out the fuel in the fuel tank, and provide continuous and stable pressure with sufficient quantity to the fuel injector, oil pipe and other components.

The earliest car manufacturer to use gasoline pump is Buick Motor Manufacturing Company in the United States, most of the electric fuel pump is installed in the fuel tank, sealed through the fuel tank cap, if it is installed on the engine or chassis, the noise will be very large, and there will be oil leakage (worried about the bottom), air and other hidden dangers, so do not use external installation, the advantage of the built-in oil pump is that the pump oil volume is large and the oil supply is stable.

There are many types of automobile oil pumps, such as roller type and vane type, which are composed of buffers, check valves and motors. There are oil inlets and oil outlets at both ends of the oil pump, and the power plug is installed on one side of the oil inlet.

The role of the car oil pump is to supply fuel with a certain pressure to the engine's fuel injection system!