As part of the St. Petersburg International Gas Forum, the corporation is demonstrating the rotor of a universal high-pressure compressor, the use of which will increase efficiency and fuel efficiency.
The United Engine Corporation of Rostec State Corporation presented for the first time at the XIV St. Petersburg International Gas Forum the rotor of a universal high-pressure compressor for new-generation industrial engines AL-41ST. This key component can be used in engines of various capacities. Its use will increase efficiency and fuel efficiency.
At the forum, UEC presented a mock-up of the industrial AL-41ST—25 and the latest innovative development — a universal high-pressure compressor, which is being created by designers of the A. Lyulka Design Bureau, a branch of the Ufa enterprise UEC-UMPO. It will be used to create a line of promising industrial AL-41ST engines with capacities of 25, 32 and 42 MW.
The new development will make it possible to adapt AL-41ST engines of various capacities for operation at compressor stations with minimal design changes to gas pumping units. This will significantly reduce the costs and time required for the reconstruction of gas transportation facilities. In addition, the use of a universal high-pressure compressor will reduce operating costs by increasing engine efficiency and improving fuel efficiency.
"We see a growing demand from companies in the fuel and energy complex for equipment that combines high energy efficiency and compliance with strict environmental standards. Rostec's UEC not only mass-produces reliable industrial engines, but also creates new ones in high-demand power segments. The promising AL-41ST-25 presented at the forum clearly demonstrates that the Russian engine industry is successfully replacing its foreign counterparts. With the creation of a universal compressor for the line of this engine, UEC is already offering advanced technologies," said Andrey Vorobyov, General Director of UEC Engineering.
One of the latest developments of the UEC is the promising industrial engine AL-41ST-25, which is used to drive the superchargers of gas pumping units. It was developed by the OKB. Lyulki is a branch of the Ufa-based UEC-UMPO enterprise under agreements between Rostec State Corporation, UEC, Gazprom and the Republic of Bashkortostan.
Bench tests of the first prototype of the new engine were held at UEC-UMPO in December 2023. The second prototype of the AL-41ST-25 was first presented at the St. Petersburg International Gas Forum in October 2024. In April 2025, its bench tests took place. The pilot operation of the AL-41ST-25 samples takes place at the Arskaya compressor station in Tatarstan.
The advantages of the new AL-41ST-25 engine are a high efficiency of 39% with the possibility of gradual increase to 40% and a capacity of 25.6 MW. The engine has unique characteristics that make it possible to maintain efficiency at elevated ambient temperatures. It is also highly environmentally friendly. Thanks to its minimal dimensions, low weight and modular design, it ensures quick installation, commissioning and maintenance. The assigned engine life is 120,000 hours, with the possibility of increasing to 150,000 hours.
For many years, UEC has been a leading manufacturer of gas turbine engines, gas pumping units and power plants for the domestic fuel and energy complex. ODK Engineering is a comprehensive supplier of UEC gas turbine equipment.
The XIV St. Petersburg International Gas Forum is taking place in St. Petersburg from October 7 to October 10. The UEC stand presents modern developments for the fuel and energy complex - a full—size NK-36ST-25 gas turbine engine with a capacity of 25 MW, a combustion chamber for it, models of the high-power turbine GTD-110M for power engineering and the AL-41ST-25 engine. In addition to the Gazprom — Territory of Technological Leadership exhibition, UEC demonstrates the latest NK-36ST-32 with a capacity of 32 MW and a rotor of a universal high-pressure compressor.
