// PROPULSION SYSTEMS AND ENGINE TECHNOLOGY TERM
Turbopump
A turbopump is a specialized machine in a liquid-fueled rocket engine that uses a turbine to drive one or more pumps, forcing propellants (fuel and oxidizer) into the combustion chamber at very high pressures.
TECHNICAL DEFINITION
A turbopump is a critical rotating machinery component in liquid-propellant rocket engines, comprising a high-speed turbine driven by hot gas (often from a gas generator or preburner) that mechanically powers centrifugal or axial pumps to deliver cryogenic or storable propellants at extreme pressures into the main combustion chamber, enabling high thrust and specific impulse.
BACKGROUND
The staged combustion cycle is a power cycle of a bipropellant rocket engine. In the staged combustion cycle, propellant flows through multiple combustion chambers, and is thus combusted in stages. The main advantage relative to other rocket engine power cycles is high fuel efficiency, measured through specific impulse, while its main disadvantage is engineering complexity.
READ MORE ON WIKIPEDIASYNONYMS & ALIASES
- Propellant pump assembly
- Rocket pump
- High-pressure feed system
- Fuel turbopump
- Oxidizer turbopump
USAGE NOTE
Turbopumps are essential for achieving high thrust and efficiency in modern liquid-fueled rocket engines, operating under extreme rotational speeds and pressure differentials, making them one of the most complex and stressed components.
DEVELOPERS
Organizations developing technology related to Turbopump.
Develops and manufactures high-performance turbopumps for its Merlin and Raptor rocket engines, central to their Falcon and Starship launch vehicles.
Designs and builds turbopumps for its BE-3 and BE-4 rocket engines, which power its New Glenn rocket and are offered to other launch providers.
A long-standing developer of rocket propulsion systems, including advanced turbopumps for engines like the RS-25 (Space Shuttle Main Engine) and RL10.
A joint venture between Airbus and Safran, developing and manufacturing turbopumps for the Vulcain and Vinci engines used in the Ariane family of European launch vehicles.
A leading Russian rocket engine manufacturer renowned for its powerful engines, such as the RD-170, RD-180, and RD-191, which feature highly advanced and robust turbopump systems.
Develops turbopumps for the LE-7A and LE-9 engines, which are critical components of the H-IIA, H-IIB, and H3 rockets for the Japanese space program.
While primarily known for aircraft engines, Rolls-Royce has expertise in high-performance turbomachinery directly applicable to turbopump technology for advanced propulsion systems, and has historically been involved in rocket engine development.
A major developer of aircraft engines, with deep expertise in turbomachinery design and manufacturing that translates directly to the complex demands of turbopumps for aerospace propulsion.
The primary contractor for the Chinese space program, developing a wide range of liquid rocket engines, including those with advanced turbopump technology for the Long March series of launch vehicles.