Buhler Motor Gmbh

Dohler Motor Gmbh

Colin Richard French

Michael John Werson

A rotary pump (), which can be operated by an electronically commutated DC motor () with an axial gap, with a dry space (), in which a wound stator () is accommodated, and a fluid-fillable pump space (), in which a permanent magnetic pump impeller () is accommodated to rotate, the pump impeller () being separated by a split plate () from stator (), which is connected to a return ring (), to which several poles () are connected, and a circuit board (), and is in heat-conducting contact with it, and includes a heat conducting element () from a good heat conducting light metal. The heat conducting element () consists essentially of a disk () aligned at right angles to the motor shaft or an annular disk with a coaxial tube () extending in the direction of the pump impeller in one piece with it, open or closed toward the motor shaft, and that the circuit board () is connected to the heat-conducting element () on the side facing away from the pump impeller ().

Rotary pump with a fixed shaft

A rotary pump () with a multipart pump housing (), comprising a suction connector () and a pressure connector (), a pump impeller () mounted on a fixed shaft (), the pump rotor () being designed as a permanent magnetic rotor cooperating with an electromagnetic stator. The task of the invention in a rotary pump is to achieve excellent efficiency in a compact design. The rotary pump is also supposed to guarantee high lifetime and improved heat removal. This task is solved according to the invention in that the shaft () is firmly connected to a first pump housing (), referred to as pump head, which includes the suction connector () or is connected to it, the shaft () forming an axis of symmetry to an inside wall area of pump head ().

Growing community of inventors

Winchester, United Kingdom

Colin Richard French