a type of plunger pump as shown as the attatched files
I don't know which textbook can show me the design and caculate of the plunger pump in details.
material seletion/fits of the plunger and the others
any helps is welcomed!
I have seen such device about twenty years ago with if I remember correctly were hydraulic fluid pumps used on trucks. Check out some of the ME handbooks and the webb.
Also used as the high pressure pump in some high pressure power units for powering rescue tools. And the high pressure end of some pressure intensifiers.
There are no high pressure dynamic seals. Leakage is controlled by controlling piston clearances.