Patent ID: 8662254

Claim:
A lubrication system for a machine comprising: a direct current (DC) motor; a battery system for powering the DC motor; a lubricating system in communication with the DC motor, the lubricating system including a supply of lubricating oil and a pump for delivering the lubricating oil to at least one component of the machine requiring lubrication, the pump being connected to a first end of a shaft of the DC motor; a hydraulic motor operably coupled to a second end of the shaft of the DC motor and wherein the DC motor is positioned between the first and second end of the shaft; a clutch system for alternately engaging and disengaging the hydraulic motor from the second end of the shaft of the DC motor; a supply of a pressurized fluid in communication with the hydraulic motor; and a control device for discharging the supply of pressurized fluid into the hydraulic motor to power the hydraulic motor, whereby the hydraulic motor, when powered by the supply of pressurized fluid, is operable to turn the shaft of the DC motor, thereby reducing an operating current supplied to the DC motor by the battery system.