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How is Crank Case and Oil sump Used in IC Engines?

 Crank Case 


It may be cast integral with the cylinder block. Sometimes, it is made of cast separately and bolted to the cylinder block. It supports the crankshaft and camshaft with the help of bearings. Sometimes, the bottom of  the crankcase may be used as oil sump. It is made of  cast iron, aluminum alloys, or alloy steels.


Oil Sump




Oil pump is fitted at the bottom of crankcase by using gasket, It contains lubricating oil. A drain plug is provided to the oil sump to drain out the oil. It is made of pressed steel sheet.
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