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GRAVITY LUBRICATION SYSTEM USED IN IC ENGINE

 In this method, oil is supplied to the parts to be lubricated by means of gravity. This system uses a drop feed oiler. It consists of  a cup and needle valve arrangement. The needle valve is operated by means of screw. The valve is raised to increase the flow of oil and lowered to decrease the oil flow. This system is used for lubricating external moving parts such as bearings, cross head , crank pins of simple steam engine. 







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