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What is the role of pressure limiting valve in the lubrication system?
Pressure limiting valve can limit the oil in the circulating oil, to prevent excessive oil fleeing into the combustion chamber, so that increased fuel consumption, engine work abnormal phenomenon. At the same time also in order to avoid excessive oil pressure, resulting in pipeline and filter blasting. The structure of the pressure limiting valve is a one-way valve that controls the oil pressure by the pressure of the spring. When the oil pressure in the oil path is greater than the spring pressure, the ball opens and some of the oil flows back to the oil pan, so the oil pressure relief. It is generally installed on the oil pump or the main oil gallery.