The United Engine Corporation (UEC, part of Rostec) spoke about fourth-generation gas turbine aircraft engines, which marked a technological leap in the industry.
When creating aircraft engines in the 1970s-1990s, the cycle parameters were significantly increased, which improved technical characteristics. The compression ratio increased to 30-35, the gas temperature in front of the turbine heated up to 1600-1700 K, and the bypass ratio to 4-6.
To ensure the competitive weight of the engine with an increased bypass ratio, composite polymer materials began to be used for parts of the outer contour and nacelle.
A powerful technological leap in Russian civil aircraft engine construction was made during the development of the PS-90A at the Perm Design Bureau under the leadership of General Designer Pavel Alexandrovich Solovyov. Compared to the 3rd generation D-30KU/KP engines, the cycle parameters of the PS-90A were radically increased.
The bypass ratio was increased almost 2 times, the total compression ratio in the compressor was increased 1.9 times, and the gas temperature in front of the turbine was increased by 200 K. This made it possible to reduce the cruising specific fuel consumption by 15%. The parametric "leap" and a significant increase in fuel efficiency were achieved through the use of a complex of advanced technologies and materials for that time.
The PS-90A engine implemented the latest principles of control, maintainability and operational manufacturability for its time in general, through the development of the modular design principle.
Currently, the unit is used, among other things, on the presidential Il-96-300PU airliner.
Earlier www1.ru reported that Russia will invest 765 billion rubles in the project "Production of airplanes and helicopters".
Read more materials:
The development of the Tu-214 was slowed down due to the MS-21-310: billions of rubles did not help
The "Dashing 90s" are in the past: the Il-114-300 is predicted to have a cloudless future
A new giant has taken off: the Il-96-400 airliner was tested in the sky
Now on home
The reason for indexation may be inflation, an increase in VAT, and rising production costs
The Ministry of Industry and Trade believes that the increase in the levy will not affect responsible manufacturers
Экипаж разогнал лайнер до 580 км/ч вместо крейсерских 450 км/ч
Ship equipment comes to Russia from China at inflated prices
Almaz-Antey and the Belarusian Ministry of Defense signed a contract for equipment maintenance
The complex's computing resources allow for the competent distribution of targets between launchers
Among the spacecraft are Aist-2T No. 1 and No. 2
Deputy Prime Minister Novak announced a postponement of the deadlines, but confirmed the commitment to developing the sector
Design engineers without experience are promised salaries from 80 thousand rubles
Hard and dense shot ensures the destruction of the target from the first hit, regardless of the drone's body material
Almost all body elements are zinc-treated
SOGAZ lost the case in court against UEC-UMPO