RD-0146
The RD-0146 (Russian: Ракетный Двигатель-0146, romanized: Raketnyy Dvigatel-0146, lit. 'Rocket Engine 0146') is a liquid-fuel cryogenic rocket engine developed by KBKhA Kosberg in Voronezh, Russia. The RD-0146 is the first Russian rocket engine to burn liquid oxygen and liquid hydrogen in the expander cycle, in which turbopumps are driven by waste heat absorbed in the nozzle and combustion chamber.