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What are the three types of engine lubrication methods?

1 Answers

DiClaire

07/29/25 4:59pm

There are three types of engine lubrication methods: pressure lubrication, splash lubrication, and gravity lubrication. Below is the relevant information: 1. Splash lubrication: This method lubricates friction surfaces by utilizing oil droplets splashed up by rotating components such as the crankshaft and camshaft during engine operation or sprayed from oil holes in the connecting rod big end. The lubrication targets include cylinder walls, cams, piston pins, etc. 2. Periodic lubrication: This involves lubricating with grease at regular intervals. The main lubrication targets are components such as the generator, starter motor, and water pump bearings. 3. Pressure lubrication: This method uses an oil pump to deliver lubricating oil under pressure to the friction surfaces of components, forming an oil film of sufficient thickness to withstand mechanical loads, ensuring reliable lubrication. It primarily meets the lubrication needs of engine components with high relative speeds and heavy mechanical loads.

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