Abstract: A pump assembly includes a coupling unit which connects a pump casing to a motor casing. The coupling unit includes at least one thermal barrier which inhibits heat conduction between the pump casing and the motor casing.

Abstract: A pump assembly is provided with a coupling unit that connects a pump casing to a motor casing. The coupling unit has a pump-side connection part and a motor-side connection part. An annular element is arranged between the connection parts using supports which minimize heat transfer between the pump-side connection part and the motor-side connection part.

Abstract: A pump assembly is provided with a coupling unit which connects a pump casing to a motor casing. The motor casing includes at least one cooling body coupled to a fan-side bearing arrangement which supports a bearing supporting a shaft of a rotor of the motor. Preferably the fans-side bearing arrangement and the at least one cooling body are formed integrally, with a portion of the cooling body having passages formed by cooling fins which support a base for motor control electronics. The air flow generated by a fan at the fan-side of the motor at least in part is directed from the region of the fan into the cooling body passages to cool one or moth of the motor electronics and the motor's stator.

Abstract: A centrifugal pump includes a drive having a fan for generating a first air flow, a motor electronic system which is supported by a heat dissipation arrangement which has at least one opening for the inflow of a second air flow which mixes with at least a portion of the first air flow to enhance cooling of the motor electronic system.

Abstract: A rotor for a reluctance machine and a method of producing a rotor for a reluctance machine is provided. The rotor is formed as a soft magnetic element which is cylindrical in shape. The soft magnetic element has recesses for forming flux barriers, one or more flux barriers being at least partially filled with a filler material, and the filler material of said flux barriers extending up to the rotor periphery and forming part of the rotor periphery.

Abstract: A rotor for a reluctance machine and a method of producing a rotor for a reluctance machine is provided. The rotor is formed as a soft magnetic element which is cylindrical in shape. The soft magnetic element has recesses for forming flux barriers, one or more flux barriers being at least partially filled with a filler material, and the filler material of said flux barriers extending up to the rotor periphery and forming part of the rotor periphery.