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The function of the oil cooler is to cool the lubricating oil and keep the oil temperature within the normal operating range. In high-power reinforced engines, oil coolers must be installed due to the high heat load. When the engine is running, the lubrication capacity is reduced as the viscosity of the oil thins out as the temperature increases.
Therefore, some engines are equipped with oil coolers, which are used to reduce the temperature of the oil and maintain a certain viscosity of the lubricating oil. The oil cooler is arranged in the circulating oil circuit of the lubrication system. The core of an air-cooled oil cooler consists of many cooling pipes and cooling plates, and the hot oil cooler core is cooled by the head-on air of the car while the car is moving.
Air-cooled oil coolers require good ventilation around them, and it is difficult to ensure that there is enough ventilation space in ordinary cars, so they are rarely used. This cooler is mostly used in racing cars because of the high speed of the car and the large amount of cooling air. The oil cooler is placed in the cooling water circuit and uses the temperature of the cooling water to control the temperature of the lubricating oil.
When the temperature of the lubricating oil is high, it is cooled by the cooling water, and when the engine starts, it absorbs heat from the cooling water to make the lubricating oil quickly increase the temperature. The oil cooler consists of a cast aluminum alloy housing, a front cover, a back cover, and a copper core tube. In order to enhance the cooling, a heat sink is attached to the outside of the tube.
The cooling water flows outside the pipe, and the lubricating oil flows inside the pipe, and the two exchange heat. There are also structures that make oil flow outside the pipe and water flow inside the pipe. <>
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When the engine is working, because the viscosity of the engine oil decreases with the increase of temperature, thereby reducing the lubrication capacity, in order to keep the engine lubricating oil in the most favorable temperature range, in the engine lubrication system of off-road vehicles and luxury cars, oil coolers are added. According to the cooling method, it can be divided into two categories, namely air-cooled and water-cooled coolers. The oil cooler consists of a cooling pipe, a cooling pad, a pressure limiting valve, and a switch.
When the lubrication system with the organic oil cooler is working, part of the oil is supplied to the main oil channel, and the other part enters the oil cooler through the pressure limiting valve (through the switch and the oil inlet pipe into the oil cooler). At this time, the pressure of the pressure limiting valve is higher than the normal working pressure of the main oil channel. When the oil cooler does not need to work, turn off the oil cooler switch, and the oil cooling oil circuit is the middle section.
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Generally, it is cooled by water, diesel engines generally have oil radiators, mainly cooled by oil radiators, oil radiators have water circulation, and the whole engine also has water circulation, so the temperature can naturally be cooled, and each engine also has a fan for external air cooling, sucking out the hot air of the engine.
Concept of Diesel Engine:The diesel engine is the power source of the generator set, which is generally composed of crankshaft connecting rod mechanism and body components, valve mechanism and intake and exhaust system, diesel supply system, lubrication system, cooling system and electrical system.
According to the different power grades, and combined with the performance advantages of various brands of diesel engines in a specific power range, the selected engine has first-class performance and high reliability, and special attention is paid to the technical advancement of the selected engine in reducing exhaust emissions, reducing fuel consumption and noise control.
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What are the functions of automotive engine lubrication systems? What components make up the role of the automotive lubrication system, is to lubricate the crankshaft, rollershaft and valve and other components of the lubrication system, the organic oil pump, oil filter element and other oil channels and other fuel injectors.
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The main function of the automobile engine lubrication system is to provide effective equipment lubricants for the process of driving and starting the car, reduce the friction between the equipment, so as to achieve more ideal and safe driving efficiency.
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What are the functions of automotive engine lubrication systems? What are the components? Tell you that the weakening system is mainly composed of lubricating sesame oil pump pipelines.
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The function of the engine lubrication system is to lubricate the engine and fill the cylinder with oil
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The lubrication system of the engine still plays a very large role with water, and the composition of these components can also be seen.
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1. Oil supply device: organic oil pump, oil channel, oil pipe, pressure limiting valve, etc., which can make the oil flow in the circulation system with a constant pressure and flow.
2. Filter device: there are filter collectors and oil filters to 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.
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Function: Increase the oil pressure and ensure that the oil is continuously circulated in the lubrication system. At present, there are two types of oil pumps: external oil pump and internal oil pump.
2.Gear type oil pump: It is composed of a driving shaft, a driving gear, a driven shaft, a driven tooth block, a housing, etc.
When the geared oil pump is working, the driving gear belt rotates in the opposite direction of the slave gear. When the two gears rotate, the oil filled between the gear cogs is carried from the oil inlet chamber to the outlet chamber along the oil pump casing wall, and the gear is disengaged on one side of the oil inlet chamber.
3.Rotor type oil pump.
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Components of the lubrication system: The engine lubrication system is composed of three parts: 1. Oil supply device
Organic oil pumps, oil channels, oil pipes, pressure limiting valves, etc., can make the oil flow in the circulation system with a constant 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.
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1.The automotive water cooling system consists of a water pump, radiator, cooling fan, thermostat, compensation cylinder, water jacket in the engine block and cylinder head, and other accessories. The water pump is a centrifugal water pump, its function is to pressurize the coolant, and Baoming Bi proves that it circulates in the cooling system and is an important part of the cooling system.
2.Components of the automotive water cooling system:
Water Pump: The water pump is the core component of the cooling system, which makes the coolant work and cools the engine. If the pump is damaged, the engine water temperature will rise.
4,2.Thermostat: The function of the thermostat is to distinguish between large and small cycles, so that the temperature of the engine can quickly reach the ideal state. The water temperature is up, and you can save fuel.
Water temperature sensor: The water temperature sensor is mostly installed at the water outlet of the engine, mainly to measure the water temperature of the engine, as the basis for fuel injection control.
Water tank: A large amount of coolant is stored in the water tank, which is the medium for heat exchange between the engine and the outside world. The heat of the engine can be discharged through the tank.
Water tank fan: When the water temperature reaches a certain temperature, the module will control the electronic fan to work and expel the heat in the water tank.
8,6.Water pipes: Without the connection of water pipes, there is no cooling system. There are also a lot of water pipes on the buses, mostly rubber hoses. If the water pipe is leaking, Huibang should repair it in time.
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1. Water pump: The water pump is the core component of the cooling system, the water pump makes the coolant play and cools the engine, if the water pump is damaged, the engine water temperature will rise.
2. Thermostat: The function of the thermostat is to distinguish the size of the cycle, so that the temperature of the machine can quickly reach the ideal state. When the water temperature rises, it can also bring fuel efficiency.
3. Water temperature sensor: Most of the water temperature sensors are installed at the water outlet of the engine, which is mainly used to measure the water temperature of the engine as a basis for the control of fuel injection volume.
4. Water tank: A large amount of coolant is stored in the water tank, which is the medium of heat exchange between the engine and the outside world, and can discharge the heat of the engine through the water tank.
5. Water tank fan: When the water temperature reaches a certain temperature, the module will control the work of the electronic fan to discharge the heat in the water tank.
6. Water pipe: There will be no cooling system without the connection of water pipe, and the water pipe on the car is also very careful, most of them are rubber hoses, if there is water pipe leakage, it must be repaired in time.
The car is old. The engine will wear out during use, the piston will become smaller and smaller, the cylinder will become larger and larger, the piston ring will be thinner and thinner, the oil scraping effect will be worse and worse, and the oil will run into the cylinder and burn. Commonly known as: >>>More
Generally behind the engine, on the cylinder block, next to the oil filter cartridge seat. There is a plug with a wire on it, which is located on the front oil duct of the oil filter. >>>More
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First of all, it is necessary to understand the coolant currently sold on the market, the current coolant is very different from the first generation of coolant, the previous coolant is basically ordinary distilled water, and today's coolant has added additional ingredients for different environmental effects, for example, in order to cope with the problem of engine corrosion, anti-rust ingredients will be added;In order to cope with the problem of cooling fluid freezing in winter, antifreeze ingredients will be added;In order to cope with the deterioration caused by the coolant not being replaced for a long time, anti-corrosion ingredients will be added, but different coolants have different differences in the ratio of these components, which is why different dyes are added to the coolant, in order to distinguish different ingredient ratios and prevent mis-addition. <> >>>More
It is generally not recommended.
If both are fully synthetic oils, it is best not to mix them. There are generally additives in synthetic oil, and different brands of synthetic oil add different ingredients, and chemical changes may occur after mixing, causing the overall engine oil quality to deteriorate, and some even tend to solidify. >>>More