What is the automotive lubrication system? The role and mode of automobile lubrication system

The automobile lubrication system is composed of several parts: oil pan, oil pump, oil filter, oil collector, main oil channel, pressure limiting valve, oil pump suction pipe, and crankcase ventilation device.

Oil pan: used to store lubricating oil. On most engines, the oil pan also serves to dissipate heat from the lubricating oil.

Oil pump: It extracts a certain amount of lubricating oil from the oil pan and is pressurized by the oil pump, and then continuously sends it to the surface of each part for lubrication to maintain the circulation of lubricating oil in the lubrication system. Most of the oil pumps are installed in the crankcase, and some diesel engines install the oil pump outside the crankcase, and the oil pump is driven by gears, through camshafts, crankshafts or timing gears.

Oil filter: It is used to filter out impurities, grinding debris, sludge and moisture and other debris in the lubricating oil, so that all the lubricating parts are clean and clean lubricating oil. There are two types of coarse oil filters and fine oil filters, which are connected in parallel in the oil duct.

Most of the oil output from the oil pump passes through the crude oil filter, and only a small part passes through the fine oil filter, but the oil is filtered by the fine oil filter every 5km the car travels.

Oil collector: It is mostly a filter type, which can filter out impurities with large particle size in the lubricating oil, and its flow resistance is small, and it is installed in series before the oil inlet of the oil pump. The oil coarse filter is used to filter out the impurities with large particle size in the lubricating oil, and its flow resistance is small, and it is installed in series between the outlet of the oil pump and the main oil channel.

The oil fine filter can filter out the fine impurities in the lubricating oil, but the flow resistance is large, so it is mostly connected in parallel with the main oil channel, and only a small amount of lubricating oil is filtered through the fine filter.

Main oil duct: It is an important part of the lubrication system, which is directly cast on the cylinder block and cylinder head, and is used to deliver lubricating oil to various lubrication parts.

Pressure Limiting Valve: Used to limit the pressure of lubricating oil output from the oil pump. The bypass valve is connected in parallel with the primary filter, and when the primary filter is blocked, the bypass valve is opened, and the lubricating oil from the oil pump directly enters the main oil channel.

The oil inlet pressure limiting valve of the oil filter is used to limit the amount of oil entering the fine filter to prevent the main oil pressure from decreasing due to too much oil entering the fine filter and affecting the lubrication effect.

Oil pump suction pipe: It usually comes with a collector and is immersed in the oil. The function is to prevent large particles of impurities in the oil from entering the lubrication system.

Crankcase ventilation device: its function is to prevent a part of the combustible mixture and exhaust gas from escaping into the crankcase through the gap between the piston ring and the cylinder bib. After the combustible mixture enters the crankcase, the gasoline vapor in it will condense and dissolve into the lubricating oil, making the lubricating oil thinner; The water vapor and acid gas in the exhaust gas will form acidic substances, which will cause corrosion to the parts; Blow-by can also increase the pressure of the crankcase lamp, causing the crankcase seal to fail and the lubricating oil to leak.

In order to prevent this phenomenon, a ventilation system must be installed.

The engine lubrication system is generally composed of an oil pan, an oil pump, an oil filter, a pressure limiter, a bypass valve, an oil channel, an oil radiator and an oil scale. Lubrication systems can be divided into five types, namely circulating lubrication system, centralized lubrication system, spray lubrication system, immersion and splash lubrication system, and total loss lubrication system of oil and grease. 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. Automobile lubrication precautions to choose the appropriate viscosity of the oil, should be according to the local temperature to choose the right viscosity of the oil, that the greater the viscosity is the better view is wrong, because the viscosity is too large, the oil flow is too slow when just starting, it is easy to aggravate the wear of the parts, and even cause tile burning accidents. Maintain the normal oil level height, when the oil quantity is insufficient, it will not only accelerate the deterioration of the oil, but also cause the burning of the parts due to the lack of oil; Conversely, if there is too much oil, the oil will run through the gap between the cylinder wall and the piston rings into the combustion chamber, causing the engine to burn oil.

1. The engine lubrication system is composed of three parts:

1. Oil supply device: there are return oil pumps, oil channels, oil answering pipes, pressure limiting valves, etc., which can make the oil flow in the circulation system with a certain pressure and flow.

2. Filter device: there are filter collectors, coarse filters, fine filters, bypass valves (blockage indicators), which can remove various impurities in the oil.

3. Instrument and signal device: there are blockage indicators, pressure sensing plugs, oil pressure alarms, indicator lights and pressure gauges, etc., which can make the driver know the working condition of the lubrication system at any time.

2. Principle: The main oil pump sucks the lubricating oil from the oil pool of the body, and then flows the lubricating oil into the oil cooler, and the cooled lubricating oil enters the main oil pipe at the lower part of the body after filtering through the oil filter, and reaches each lubrication point under the action of pressure.

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

When it comes to the composition system of the car, many friends will associate it with the starting system and cooling system. However, it is forgotten that the existence of the automotive lubrication system plays a role that we cannot imagine, and it can be said to be an indispensable system. So what is the role and function of the automobile lubrication system, and what will happen to the car without the lubrication system.

The role of the lubrication system.

The lubrication system, as the name suggests, is to lubricate the internal parts. When the engine is working, it will continuously deliver a sufficient amount of clean oil at the appropriate temperature to the friction surface of all transmission parts, thus forming a layer of lubricating oil film. It can not only effectively alleviate the friction of parts, but also reduce the loss of power, ensure the service life of the engine, and provide a good working condition.

But don't think that the lubrication system is dispensable, if there is no lubrication system, it will naturally not be able to form an oil film. Then the parts inside the engine will not be lubricated when they are working, and strong friction will occur. Not only does it aggravate the wear and tear of engine parts, but it can even burn the working surface of the parts, causing the engine to fail, which is what we often hear about cylinder bursts.

It is important to know that the cost of engine maintenance is not cheap, so it is necessary to ensure that the lubrication system is working properly.

The lubrication system of the engine is mainly composed of the oil pan, the oil pump, the oil collector, the oil coarse filter, the oil fine filter, the pressure limiting valve, the bypass valve, the oil radiator, the oil pipe is open, the oil channel and the oil pressure gauge plug.

The composition of the automobile lubrication system includes: oil pan, oil pump, oil filter, oil collector, main oil channel, pressure limiting valve, oil pump suction pipe, crankcase ventilation device.

The lubrication methods are: pressure lubrication, splash lubrication.

Woo WooHope this helps,!!

The lubrication system is mainly composed of oil pan, filter (suction disc laugh), oil suction pipe, oil pump, pressure limiting valve, safety valve, oil filter, main oil channel (body oil channel), oil pressure gauge (oil pressure indicator), branch oil channel, sliding lease oil radiator and other Xinyouzhao.

It forms an oil film on the surface of moving parts to reduce wear and electrical energy loss, and plays a lubricating role. 2.The circulating lubricating oil flows on the surface of the parts, absorbs part of the heat generated by the friction of the parts, maintains the proper working temperature of the parts, and plays a cooling role.

3.The lubricating limb hole oil is used to circulate and flow, wash the surface of the parts, and take away the metal particles that are worn and peeled off, which plays a cleaning role. 4.

An oil film is formed between the piston and piston rings, which reduces the leakage of gas into the crankcase and acts as a seal.

The basic task of the lubrication system is to continuously supply lubricating oil to the friction surface of each part to reduce the friction and wear of the parts. Although the lubrication system does not participate in the conversion of engine functions, it can ensure the normal operation of the engine and make it have a long service life.