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PS-90A Turbofan Engine

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The PS-90 turbofan engine features a twoshaft configuration with exhaust mixing from both ducts. It has a reverser inside the bypass duct. The engine comprises 11 modules. The single-stage fan has titanium blades. The lowpressure compressor has two stages, and the high-pressure compressor has 13 stages. The engine has a cannular combustion chamber.

 

The cooled high-pressure turbine has two stages, and the low-pressure turbine has four stages. The engine has a two-channel digital control system. Advanced control and monitoring system provides timely engine malfunction detection and on-condition maintenance. The unified PS-90A engine is designed to power the Tu-204, Tu-214, Tu-330, Il-76MF, Il- 76T/TD, and Il-96-300 aircraft. In 1992 the engine got the Interstate Aviation Committee and ICAO noise and emission certificates. Introduction of more stringent ICAO requirements will not pose a problem for PS-90A-powered aircraft as only minor upgrading of the standard engine and air intake noise-absorption system will be required.

 

Variants

The PS-90A-76 derivative has an extended service life and improved acoustic and emission characteristics. It is designed to power the Il-76MF aircraft, and can also be installed on the Il-76T/TD and Il-86 aircraft. The PS-90A2 derivative boasts enhanced reliability, improved efficiency, and simplified maintenance.

 

PS-90A

PS-90A2

Thrust, kgf:

 

take-off mode (H=0, M=0, ISA)

16,000

16,000

cruising mode

(H=11,000 m, V=850 km/h)

3,500

3,700

Specific fuel consumption, kg/kgf/h

cruising mode (H=11,000,

V=850 km/h)

0.595

0.595

Air consumption, kg/sec

470

470

Dimensions, mm:

 

fan diameter

1,900

1,900

length

5,333

4,964

Engine dry weight, kg

2,950

2,950

Defense Products & Services: PS-90A Turbofan Engine
Companies & Organizations: 
Defense Products & Services Sectors: Turbojet / turbofan engines, aircraft
Description: PS-90A Turbofan Engine
Source of Information: Rosoboronexport Joint Stock Company