Cummins Engine Company, Inc.

P Doug Free

Thomas L McKinley

The present invention provides for automatic relief of excess pressure within an engine lubrication system in such a way as to recover a significant portion of the energy that was used to create the excess oil pressure. A pressure regulator creates a directed flow of oil in order to relieve pressure within the lubrication system. This directed flow of oil is caused to impact an impulse/momentum wheel, thereby imparting momentum from the oil to the wheel, creating a torque therein. The impulse/momentum wheel is advantageously coupled to the engine gear train, thereby reducing the engine power required to run the gear train by recovering energy from the lubrication system.

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Columbus, IN, United States of America

P Doug Free