As the aviation industry continues its efforts to reduce CO₂ emissions, achieving both high efficiency and high durability in next-generation civil aircraft engines is demanded. Mitsubishi Heavy Industries Aero Engines, Ltd. (MHIAEL) is working to enhance its capabilities in developing low-pressure turbines and combustors, considering these as a strategic area. Regarding low-pressure turbines, multiple tests were conducted, aiming at verification of high-efficiency airfoils, verification of seal designs for optimization of secondary air system, verification of vibration control technology of rotor blades. System demonstrations were also carried out using an actual engine, resulting in enhanced capability in the development of low-pressure turbines. Regarding combustors, technology to machine cooling holes using lasers and water jets and a heat-resistant ceramic coating technology have been developed. MHIAEL will further enhance its technological capabilities with the aim of adopting these technologies to next-generation civil aircraft engines.
