Q. A relief valve is fitted to the main oil gallery of an engine. The purpose of relief valve is
Solution:
- The engine oil is supplied at a pressure. So the relief valve is used as a safety valve to maintain the maximum pressure.
- Oil flow rate for lubrication is generated by a positive displacement pump equipped with a pressure relief valve.
- Usually present in the casing of the pump to prevent high oil pressures building up in the system and to deliver to the sump the exceeding generated flow rate.
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