Hydro-Aire and Lear Romec design and manufacture a wide range of high performance centrifugal fuel pumps for commercial and military airplanes. From small fractional horsepower D.C. boost pumps used on business jets and small commercial transports to large multi-horsepower A.C. jettison pumps used on large commercial transports and military aircraft.
Centrifugal pumps operate using kinetic energy to move fluid using an impeller and a circular pump casing. The fluid enters the pump near the center of the impeller and is moved to its outside diameter by the rotating motion of the impeller. The vanes on the impeller progressively widen from the center of the impeller that reduces speed and increases pressure. This allows centrifugal pumps to produce continuous flows at high pressure.