All/More Electric Aircraft Engine & Airframe Systems - Turbo & Jet ...

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More Electric Engine (MEE) In addition to the More Electric and All Electric Aircraft (MEA/AEA) concept, there is another research direction towards satisfaction of the increasing demand for electrical power in the aircraft ‐ More Electric Engine (MEE). A More Electric Engine takes the engine control elements of the engine, such as fuel pumping, oil pumping and engine actuation that are conventionally powered through mechanical and/or fueldraulic means and converts them to electrically powered operation. In spite of obvious benefits of the MEE it is still under investigation since MEE implementation meets a lot of problems. Unclassified 44
More Electric Engine (MEE) Challenges Embedded generator The embedded electrical machine and associated control provide electrical generation capabilities and the engine start function via electrical means. However, the embedded machine installation increases the engine length and consequential increase in drag due to nacelle length increase, as well as increase in engine weight due to additional bearing requirements and therefore would be detrimental to the overall efficiency. Unclassified 45
Page 1 and 2: The 9th Israeli Symposium on Jet En
Page 3 and 4: Evolution of the All/More Electric
Page 5 and 6: “Conventional” Philosophy (Cont
Page 7 and 8: “Conventional” Philosophy (Cont
Page 9 and 10: Effects of Takeoff on Aircraft Oper
Page 11 and 12: Effects of Bleed Air and Shaft Powe
Page 13 and 14: “Electric Aircraft” Philosophy
Page 17 and 18: “Electric Aircraft” Unclassifie
Page 19 and 20: “Electric Aircraft” Improved re
Page 23 and 24: Secondary Power Systems (SPS) Distr
Page 25 and 26: Conventional Secondary Power System
Page 27 and 28: Typical Power Level of Electrical L
Page 29 and 30: AC Power Generation & Regenerative
Page 31 and 32: B787 “Bleedless” System Archite
Page 33 and 34: B787 Hybrid Electrical Power Distri
Page 35 and 36: Conventional Vs. Electric ECS Conve
Page 37 and 38: Actuation System The four‐engine
Page 39 and 40: Impact of Aircraft and Engine Desig
Page 41 and 42: Impact of Aircraft and Engine Desig
Page 43: Impact of the AEA Concept Implicati
Page 47 and 48: IAI More “Electric Aircraft” B7

All/More Electric Aircraft Engine & Airframe Systems - Turbo & Jet ...

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