Patent ID: 8356694
Filing Date: 2013-01-22
Classification: F01D,F05D

Abstract:
1. A lubrication system for an expendable gas turbine engine that recirculates lubrication oil through the engine, comprising: a single port storage reservoir that stores all of the lubrication oil for the engine and isolates all the lubrication oil from the engine before starting the engine; an operating reservoir that supplies all of the lubrication oil from the storage reservoir for the engine after starting the engine; a transfer valve with an inlet coupled to the single port of the storage reservoir and an outlet coupled to an inlet of the operating reservoir that transfers all of the lubrication oil from the storage reservoir through its single port to the operating reservoir before starting the engine and blocks the return of the lubrication oil to the storage reservoir through its single port during operation of the engine; and a pump that circulates the lubrication oil from the operating reservoir through at least one engine bearing by means of an engine lubrication oil supply path and back to the operating reservoir by means of an engine lubrication oil discharge path separate from the engine lubrication oil supply path.