Gearbox with passive lubrication system

摘要

A lubrication system (301) includes a reserve housing (303) configured to retain a lubrication fluid (321). A supply line (323) in fluid communication with the reserve housing is configured to provide pressurized lubrication fluid to the reserve housing (303). An overflow tube (305) has an overflow port (307), the overflow tube being configured to prevent the volume of the lubrication fluid from exceeding a certain amount. A metering jet (313) is configured to allow the lubrication fluid to flow from the reserve housing (303) onto a component, such as a bearing (325), in the gearbox at a predetermined rate. The metering jet (3013) provides flow of the lubrication fluid onto the bearing (325) even when the supply line (323) no longer provides pressurized lubrication fluid (321) to the reserve housing (303).