US Patent 10190673 Active oil management system for axles

An apparatus for regulating lubricant having a carrier housing including a lubricant sump. A ring gear disposed within the carrier housing, wherein the ring gear is partially disposed in the lubricant sump. A lubricant catch is disposed in the carrier housing, and a reservoir is disposed outside of the carrier housing. A first conduit is disposed between the lubricant catch and the reservoir. A second conduit is disposed between the reservoir and the lubricant sump. A valve is in fluid communication with the reservoir and the lubricant sump.