B-6 小型エコエンジン用部分希薄燃焼器の開発(液体燃料・燃焼器,一般講演)

概要

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Lean burn combustion technology is the one of the key technologies for the next generation civil aircraft engines. Kawasaki heavy industries have been developing a Lean Pre-mixed Pre-vaporized (LPP) combustor under the project of Environmentally Compatible Aircraft Engines for Small Aircraft (ECO) led by New Energy and Industrial Technology Development Organization (NEDO) and Ministry of Economy, Trade and Industry (METI). The emission target in ECO engine project is -50% NOx reduction against ICAO CAEP4 regulation. For the target engine cycle defined in the early stage of the project, annular combustor tests have been performed and the result showed about -55% NOx reduction against the regulation. The target engine cycle was revised in the halfway of the project to higher pressure and temperature cycle for better SFC due to the escalation of fuel cost. This paper describes design change to accommodate the higher combustor inlet pressure and temperature condition and some test results in multi sector combustor unit.
2010-10-20