To minimize wasted energy in hydraulic systems, variable-displacement pumps were developed. They reduce power loss by adjusting the relationship between pressure and flow for various power levels.

Beyond the wheel, the most important mechanical equipment serving humanity is the centrifugal pump. Centrifugal pumps make modern quality of life possible. Turn on a faucet and a centrifugal turbine ...

There was a time when the front bumper was the preferred location, and just about the only one, for fire pumps on motorized apparatus. Over the decades, pump locations have migrated to various ...