Browse Publications Technical Papers 2004-01-3048
2004-10-25

Reducing the Amount of Lubricating Engine Oil by Using a New Crankshaft Bearing with Eccentric Oil Groove 2004-01-3048

Oil pump down sizing is one of the effective method to improve engine friction loss. Reducing the required amount of lubricating engine oil can be achieved by the application of a new crankshaft bearing with an eccentric oil groove. By adopting a bearing with an eccentric groove, we found the well balanced specification which can keep the necessary amount of oil to the crankshaft pin and reduce leaking oil from crankshaft main journal. Measuring oil amount distribution in engine running condition simultaneously and checking capability of eliminating contamination analytically have achieved.

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