Wikipedia
A booster pump is a machine which will increase the pressure of a fluid. They may be used with liquids or gases, but the construction details will vary depending on the fluid. A gas booster is similar to a gas compressor, but generally a simpler mechanism which often has only a single stage of compression, and is used to increase pressure of a gas already above ambient pressure. Two-stage boosters are also made. Boosters may be used for increasing gas pressure, transferring high pressure gas, charging gas cylinders and scavenging.
Usage examples of "booster pump".
The importance of White Hill to anyone who knew of it was that it was one of the booster pump stations along the 800-mile length of the pipeline to help maintain a constant 1180 psi of pressure of oil flow -- manned by a rotating crew of five for half the year and self-maintaining during the heavy winter months.
He saw the flashing light which indicated that he had forgotten the fuel-booster pump, switched it in, and the light disappeared on the panel.
He nodded to Stan, who pushed the feathering button and snapped off the booster pump.
Like the others, he too, wears a statskin cowl and sealed togs, his fabric ruddy and smudged on the side where he crawled under the trundle-carrier to find the plasma booster pump.