Rocket engine turbopump cutaway.
https://s3-us-west-1.amazonaws.com/h..._turbopump.jpg
Previously:
https://www.homemadetools.net/forum/...247#post138544
https://www.homemadetools.net/forum/...244#post141921
https://www.homemadetools.net/forum/...630#post155510
https://www.homemadetools.net/forum/...881#post160072
https://www.homemadetools.net/forum/...166#post161145