Hydraulic pump power


A hydraulic pump is a mechanical sourse of power that converts mechanical power into hydraulic energy (hydrostatic energy i.e. flow, pressure). It generates flow with enough power to overcome pressure induced by the load. When a hydraulic pump operates, creates a vacuum at the pump inlet which forces liquid from the reservoir into the inlet line to the pump and a mechanical action delivers this liquid to the pump outlet and forces it into the hydraulic system. The input power of the pump depends on the swept volume, the revolutions per second and the efficiency of the pump.

Related formulas


PPower (N*m/s)
nRevolution per second (rev/s)
VstrokeSwept volume per revolution (m3/rev)
ΔPPressure difference over pump (N/m2)
nmhMechanical/hydraulic efficiency (dimensionless)