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What are the components of a lubrication system?

1 Answers

ManuelMarie

07/30/25 3:10am

Lubrication system consists of three major components: oil supply device, filtration device, and instrumentation & signaling device. Oil supply device: Includes oil pump, oil passages, oil pipes, pressure relief valve, etc., which enables oil to circulate in the system at a certain pressure and flow rate. Filtration device: Comprises oil strainer, coarse filter, fine filter, bypass valve (clogging indicator), capable of removing various impurities from the oil. Instrumentation & signaling device: Includes clogging indicator, pressure sensor, oil pressure alarm, warning light and pressure gauge, etc., allowing the driver to monitor the working status of the lubrication system at any time. Working principle of lubrication system: The main oil pump draws lubricating oil from the engine oil pan, then flows the oil into the oil cooler. The cooled oil passes through the oil filter and enters the main oil pipe at the lower part of the engine block, reaching various lubrication points under pressure. Function of lubrication system: During engine operation, it continuously delivers sufficient quantity of clean oil at appropriate temperature to all transmission component friction surfaces, forming an oil film between surfaces to achieve liquid friction. This reduces frictional resistance, lowers power consumption, decreases component wear, thereby improving engine reliability and durability.

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