Powerhead (rocket engine)
{{Short description|Major component of a liquid rocket engine}}
A liquid rocket engine powerhead (or powerpack) is the turbopumps, preburners, and all the requisite equipment for a non-pressure-fed rocket engine cycle rocket engine, minus the combustion chamber and the expansion nozzle.{{cite book|author=Pasquale M Sforza|title=Theory of Aerospace Propulsion|url=https://books.google.com/books?id=crYGWcPlIqAC&pg=PA441|date=27 September 2011|publisher=Elsevier|isbn=978-0-12-384889-5|page=441|quote=The combustion chamber with its associated equipment and structure is often called the powerhead...}}{{cite conference |url= https://www.researchgate.net/publication/305631545|title=Conceptual design of a supercritical oxyfuel combustor based on LOX/methane rocket engine technologies |vauthors=Chowdhury A, et al.|date=2016 |publisher= |book-title= |pages= 4636|location= |conference=14th International Energy Conversion Engineering Conference |id=}}