The United Engine Corporation (UEC) explained the operation of the "heart of the engine" — the combustion chamber, in which heat is supplied to the working fluid (air).
After the compressor, before the combustion chamber, the compressed air is divided into two streams — primary and secondary.
Primary air under high pressure enters the main combustion chamber, where it forms a fuel-air mixture after mixing with fuel injected through the nozzles of the main fuel system. The mixture is ignited by a spark from the spark plugs. The burning fuel increases the temperature of the mixture. The resulting gas flow enters the turbine blades and rotates it.
Secondary air enters the chamber through holes in the walls of the combustion chamber's flame tube and creates a cooling layer between the chamber walls and the high-temperature flow.
This is necessary to prevent the walls from deforming due to the high temperatures of the working fluid — 2400-2600 degrees Kelvin. Secondary air allows maintaining the wall temperature at around 1020-1220 degrees Kelvin (about 2300 degrees Celsius).
The gas flow escaping from the combustion chamber moves at a higher speed than the air flow approaching the engine. The gas not only rotates the turbine but also creates thrust.
Earlier, www1.ru reported that a Tu-144 airliner will be used to open a museum in Kazan.
Read also materials on the topic:
Satellites spotted a Su-35 fighter at an airbase in Algeria
The latest aircraft SJ-100, MS-21 and Tu-214 will receive satellite WiFi on board
Photos of two newly built Su-57 fighters have appeared online
Now on home
The country will also form a universal air defense system
The crew evaluated the performance of long-range shortwave communication
The new production facility will repair engines for narrow-body Airbus and Boeing aircraft
More than 75 million users registered in the messenger
The priority is supplying its own army
Foreign Customers Are Ready - But Russia Is First in Line
New generation of such systems is capable of hitting targets at a distance of up to 300 kilometers
Tests Confirmed the Correctness of Design Solutions
The pilot in the cockpit will be present as a controller
Semiconductor plant "Arsenal" went to court against "Kronshtadt"
The exact launch date will be determined after testing
Замглавы ведомства рассказал о мерах для снижения количества опасной продукции на российском рынке