IHI Unveils Megawatt-Class Electric Motor in Jet Engine Tail Cone

IHIImage Source: IHI


IHI Corporation, in collaboration with domestic partners, reveals the world's first one-megawatt-class electric motor embedded in a jet engine tail cone. Part of the More Electric Architecture for Aircraft and Propulsion (MEAAP) project, this innovation aims to enhance energy management, reduce carbon emissions, and optimize aircraft systems. IHI's breakthrough addresses the growing demand for air travel and aligns with the UN's target of achieving nearly zero carbon dioxide emissions from passenger aircraft by 2050.


In a groundbreaking achievement, IHI Corporation, along with domestic partners, announces the successful development of the world's first one-megawatt-class electric motor housed within a jet engine tail cone. This remarkable feat is a result of the company's More Electric Architecture for Aircraft and Propulsion (MEAAP) project, a technological initiative focused on advancing aircraft systems to mitigate carbon dioxide emissions.

IHI's latest milestone emerges from ongoing research into advanced electric propulsion and hybrid systems under Japan's New Energy and Industrial Technology Development Organization. With the global passenger jet fleet expected to double in the next two decades, the need for eco-friendly aviation solutions becomes crucial, aligning with the UN's goal of achieving minimal carbon emissions from aircraft by 2050.

MEAAP extends beyond electrifying aircraft, aiming to significantly enhance fuel efficiency. By optimizing aircraft systems, including engines, MEAAP seeks to repurpose cabin air, eliminating the discharge of air outside the aircraft. This approach not only contributes to cooling electrical equipment but also simplifies conventional hydraulic and pneumatic systems, reducing weight and enhancing design freedom and maintainability.

IHI's engine-embedded electric motor is poised to provide power for aircraft and play a crucial role in hybrid electric propulsion systems, aligning with global research and development efforts. The company's previous development of a 250-kilowatt-class engine-embedded electric motor showcased advancements in high-density molded coil technology and exhaust heat system technology, providing a foundation for the current breakthrough.

IHI's commitment extends to the continuous development of hybrid electric propulsion systems with the goal of demonstrating an engine-embedded electric motor in the middle of this decade. By combining various technologies, including a high-power electric motor, an electric turbo compressor, a high-flux plastic magnet rotor, and an electric hydrogen turbo-blower, IHI aims to electrify and optimize a range of propulsion systems for the future of aviation.


IHI's unveiling of the one-megawatt-class electric motor in a jet engine tail cone marks a revolutionary step towards sustainable aviation. As the company continues to pioneer advancements in hybrid electric propulsion, this breakthrough aligns with the industry's commitment to reducing carbon emissions and optimizing aircraft systems for a greener future.

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