Hydraulic pump e.g. surface pump, has suction connections arranged below center of gravity plane and/or axis of rotation of rotor, and pressure connection arranged above plane and/or axis, where plane runs through center of gravity of pump

摘要

The pump has a rotor (2) driven by an electric motor (1), and a filter unit (8) with a filter (9) arranged in a fluid flow of suction connections (3, 4), where a longitudinal axis (7) of the filter runs parallel or co-axial to an axis of rotation (22) of the rotor. The suction connections are arranged below a center of gravity plane and/or the axis of rotation of the rotor, and a pressure connection (6) is arranged above the plane and/or the axis of rotation, where the plane runs through a center of gravity of the pump.