Turbopump
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A turbopump is an assembly consisting of a liquid pump driven by a gas turbine, connected via a shaft. They were initially developed in the US and Germany in the 1930s and 1940s. While other use cases
Part of an axial turbopump designed and built for the M-1 rocket engine. Axial designs are rare in turbopumps aside from a few liquid hydrogen pumps.
Robert Goddard's turbopump for his "P-Series" rockets. While rudimentary compared to modern practices, notice the pump inlet on the left, pump discharge in the foreground, turbine manifold inlet in the background, and turbine wheel on the right.
The V-2 rocket used a circular turbopump to pressurize the propellant.
Staged combustion cycle
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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. Th
Oxidizer-rich turbine exhaust from a SpaceX Raptor preburner shown during a 2015 sub-system test on a test stand at Stennis Space Center. In the full-flow rocket engine, the preburner exhaust is fed into a turbine and then into the main combustion chamber.