turbopump
Noun
Meaning
English Wikipedia has an article on:turbopumpWikipedia
turbopump (plural turbopumps)
A device consisting of a pump and a turbine mounted on the same shaft.
Examples
A thin membrane and a valve at the exhaust should be added to protect the turbopump from excessive back pressure (e.g. after a power failure or leaks in the backing vacuum).
One of the two submarines carrying Me 163 parts did not arrive in Japan, so at the time, the Japanese lacked a few important parts, including the turbopump which they could not make themselves.
Since the mean free path is inversely proportional to pressure, a turbopump will pump when the exhaust pressure is less than about convert where the mean free path is about 0.7 mm.
The purpose of a turbopump is to produce a high-pressure fluid for feeding a combustion chamber or other use.
The transition from vacuum to nitrogen and from a running to a still turbopump has to be synchronized precisely to avoid mechanical stress to the pump and overpressure at the exhaust.
This offers a lower-cost approach than a regulated LFRJ requiring a turbopump and associated hardware to supply the fuel.