Động cơ phản lực

Động cơ phản lực

- Thưa các bác, em muốn tìm một số hình và tư liệu về các loại động cơ phản lực như F119 PW100 của F22, các đời AL 31 của họ nhà SU và AL 41( đặc biệt là các loại động cơ nga, vì em tìm trên mạng rất hình anh của và số liệu của động cơ nga), thanks các bác trước
-Nếu topic của em có làm loãng diễn đàn thì xin lỗi các bác và mong mod sẽ đóng nó lại

The F-22 uses two Pratt & Whitney F119-PW-100 turbofan engines developing over 15900 kgf (or 35,000 lbf) of thrust with afterburning. The actual maximum thrust of the F119-PW-100 engine remains classified. The F119-PW-100 engines are designed to propel the F-22 at above Mach 1.5 without the use of afterburners - in supercruise mode. The actual top supercruise speed of the F-22 is also classified.
F119-PW-100 main features:
application of alloy C in afterburner and exhaust nozzle - heat-resistant titanium alloy allows for greater thrust and durability
FADEC (fourth-generation full-authority digital electronic engine control) - four computers in two units in each engine for the dual-redundant digital engine controls
smokeless - no visible smoke coming from the engine, which adds to the aircraft''s LO characteristics
improved serviceability - major components are located at the bottom of the engine for easy access, any replaceable unit can be accessed without having to remove any other units
floatwall combustor - higher combustion chamber durability is achieved through application of oxidation-resistant high-cobalt material in thermally-isolated panels
integrally bladed rotors - most disks and blades are machines from a single piece of metal alloy to ensure higher material stability and precision specs.
compressor stators using alloy C high-strength thermo-resistant titanium - increases stator durability at higher temperatures, allowing for higher engine efficiency
low aspect, high-stage-load compressor blades - wider blades offer higher efficiency and strength
long-chord, shroudless fan blades - wider blades allow to remove the metal shroud around the engine fans for higher engine efficiency
Applications of integrated product development methods and computational fluid dynamics allowed for about 40% fewer major parts in the F119-PW-100 than in most current fighter jet engines. The F119-PW-100 is equipped with a two-dimensional exhaust vectoring nozzle, which can direct thrust at +/-20deg in the vertical plane. The two thrust-vectoring nozzles of the F-22 can increase the aircraft''s roll rate by up to 50% when used differentially. The nozzles can also operate with afterburning and are controlled by the integral flight control system.

The Lyulka-Saturn Al-31 turbojet is the main Russian engine for modern fighter aircraft. Numerous modifications of the Al-31 have been produced, including the world''s first supersonic jet engine with a thrust-vectoring nozzle. Various versions of this engine are used on Su-27, Su-27SK, Su-27UBK, Su-30MKK produced for China''s PLAAF, Su-30MKI produced for the Indian Air Force and other fighter and fighter-bomber aircraft. The Al-31FN - a development of the Al-31F - was created in 1992-1994 and features increased thrust, fadec control with hydraulic fuel pressure-activated back-up and significantly improved fuel economy. The Al-31FN is used on Su-32 (Su-27IB), Su-27SM (Su-35) and Su-32FN permitting these aircraft to have a maximum range of well over 4,000 km on internal fuel. The initial delivery of Al-31FN engines to China took place in 2001-2002 and numbered some 54 non-thrust-vectoring engines. China''s CEC is also believed to have successfully negotiated with Russia license production of Al-31 engines. Later models of the J-10 are likely to use the thrust-vectoring version of the Al-31FN.

AL 41