On Demand Oil Supply Navy SBIR FY2011.2 Sol No.: Navy SBIR FY2011.2 Topic No.: N112-096 Topic Title: On Demand Oil Supply Proposal No.: N112-096-0118 Firm: Spytek Aerospace Corporation 450 Frontier Way, Unit D Bensenville, Illinois 60106-1170 Contact: Christopher Spytek Phone: (630) 595-9133 Abstract: The need to optimize gas turbine engine performance, coupled with `electrification' of aircraft systems, as on the Lockheed F35 and Boeing 787 , in order to maximize efficiency and flexibility, created an opportunity to develop a `smart' electrically driven lubrication system for gas turbine engines. Spytek's electric oil system ascertains the operating condition of a gas turbine engine, including speed, pressure, bearing temperatures and determines the amount of lubrication required for each bearing zone. The system would include benefit of better thermal control of engine bearings, lower system weight and power use, with flexibility in placement of the system on the engine/airframe combination. Spytek pioneered use of the system on its ATG-2/J304 gas turbine engine series. In the Phase I effort, evaluation of the existing Spytek system would be completed. Modifications based on the systems performance based over a period of eight years would be made. Data on pump wear, filter performance and oil supply degradation is available. With the option, the ATG-2 system would be modified to take advantage of full PID oil system control with system demonstrations made on a Spytek gas turbine engine, demonstrating oil supply on demand capability and full bearing TMS control. Benefits: The use of an electric adaptive oil system design will allow for increased thermal management system (TMS) control of a gas turbine engine. The elimination of mechanical components and the associated gear-box components in favor of light weight electric lube and scavenge pumps will result in a design 60% of the weight of a traditional mechanical oil system. Oil flow control will increase by 80% allowing for high precision TMS control of individual bearing elements. Electric oil system hardware location flexibility increases due to the fact that pump elements need not be located directly on the engine, near the gearbox, but can be located anywhere on the engine or even on the airframe itself. Finally, a failsafe operating mode allows for redundant pump operations. Scavenge/Feed pumps can be reconfigured during emergency engine operations to supply engine feed oil, and provide multi-duty functions. Return