US Patent 7516729 Providing lubricant to an engine

A method and apparatus for providing lubricant to an engine which may be operated in either a normal position or an extreme angled position. Through gravity, the lubricant pools in a first location when the engine is in a normal position and pools in a second location when the engine is in an extreme position. A main pump provides fluid from a first location through a control valve to the engine when the engine is in a normal position. When the engine is in an extreme position, an auxiliary pump provides lubricant from the second location through the control valve to the engine. So long as the main pump has adequate lubricant pressure, lubricant is provided from the main pump to the engine.