Rostec United Engine Corporation has successfully completed testing of the second experimental gas generator - the "heart" of the PD-8 engine.
It is designed for SSJ-NEW aircraft.
As part of the tests, the correct operation of the nodes, the required temperature and pressure parameters, and compliance with environmental standards were confirmed. The next stage of the project will be bench tests of the first prototype of the engine, which are scheduled for early next year.
The gas generator, which is called the "heart" of an aircraft engine, consists of a high-pressure compressor, a combustion chamber and a high-pressure turbine – it is this part that drives the power plant.
During the launches, the joint work of the gas generator units was evaluated at the test stand, temperature and pressure measurements were carried out, as well as emissions of harmful substances and smoke. According to their results, the correctness of the solutions embedded in the hot part of the power plant was confirmed.
"The creation of PD-8 is carried out by the method of parallel development of the hot part of the engine, so that the project takes less time to implement. Rostec State Corporation has completed the tests of the second experimental gas generator, which were successful and confirmed the correctness of the technologies used. Now the production of components is underway to start assembling PD-8 prototypes, bench tests of which are scheduled for early 2022," Vladimir Artyakov, First Deputy Director General of the State Corporation, quoted Rostec.
In parallel with the production of PD-8 prototypes, tests of gas generators will continue.
"Confirmation of design decisions at the testing stage of the gas generator is important for the entire course of certification work on the PD-8 engine. The plans include testing the gas generator at the CIAM high-altitude stand in conditions close to engine operation. In parallel, the compressor will be tested as part of an autonomous installation in CIAM to study and confirm the inherent characteristics," said Yuri Shmotin, Deputy General Director - General Designer of the UEC.
To date, as part of the work on the power plant, the stage of the technical project has been completed, the release of working design documentation has been completed, and prototypes of the engine are being manufactured. Obtaining a type certificate for PD-8 is scheduled for 2023.