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От
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Venik
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К
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Дмитрий Журко
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Дата
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25.04.2002 20:44:23
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Рубрики
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Современность; ВВС;
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ПС-90А2
Мое почтение!
Из Джейнс Aero Engines 22-11-01:
This engine replaced a joint effort with Pratt & Whitney designated PS-90P. It was designed to replace the PS-90A on the Il-96-300 and the PW2337 on the IL-96M/T. It is interchangeable with the PS-90A, but is upgraded in the following items: from USA, improved HP turbine and bearing support (Pratt & Whitney), FADEC control system (Hamilton Standard), pneumatic valves (AlliedSignal) and oil filters (Pall); from France, optical pyrometer (Auxitrol) and electrical connector (Deutsch); from Germany, on-board monitoring system (BGT), fuel/oil heat exchanger (Behr) and bearings (FAG); from Sweden, bearings (SKF), and from Russia, design refinement and certification (AVI) and production (PECo [Perm Engine Co]). Its description differs from the basic PS-90A in the following:
Fan
Mass flow 500 kg (1,102 lb)/s. Pressure ratio 1.746. Bypass ratio 4.29.
HP Compressor
Overall pressure ratio 35.2.
HP Turbine
Entry gas temperature 1,750 K (1,477єC).
LP Turbine
Max gas temperature 933 K (660єC).
Control System
FADEC.
Specific Fuel Consumption
Cruise (11,000 m, 36,090 ft, M0.8)
16.99 mg/Ns (0.600 lb/h/lb)
ПС-90П
ПС-90А2
С уважением, Venik