The pressure reducing valve, which is located at the outlet of the oil pump, opens when the oil pressure increases above 5.6 bar, and some of the oil goes back into the oil sump.
The oil enters the main circuit through the central axis of the filter cartridge. There is an oil pressure switch sensor that shows the driver a drop in oil pressure by lighting a control lamp on the dashboard. The control lamp lights up when the oil pressure drops below 0.3 bar. A bypass valve ensures the passage of unfiltered oil into the main channel.
The main channel is connected to the crankshaft bearing lubrication channels. Oil is supplied to the connecting rod bearings through inclined holes, and at the same time it rises along the inclined channel to the cylinder head, lubricating the camshaft bearings, rocker arms, and valve stems there.
The oil pump on a gasoline engine is made together with the crankshaft seal on the engine toothed belt side. The inner rotor of the oil pump is connected to the crankshaft. In a diesel engine, the oil pump with the gear is located in front of the engine.
Some models also have an oil cooler. In this case, part of the oil after the oil pump goes to the oil cooler, which serves to improve the cooling of the oil and the engine.
The article was obtained from this portal www.MitsubishiMan.ru
Oil circulation diagram
1 - oil receiver mesh; 2 - oil pump; 3 - pressure reducing valve; 4 - oil filter; 5 - oil pressure switch sensor.