Abstract: A pump is provided with an electric motor that has a rotor. The rotor is provided with a shaft and a magnet surrounds the shaft. The magnet is connected with form fit to the shaft. A follower surrounds the shaft at least in some areas of the shaft. The follower is monolithically connected to the shaft or is connected with form fit to the shaft. The magnet is made of at least two magnet segments and the follower has projections which engage intermediate spaces formed between the magnet segments.

Abstract: A pump is provided with an electric motor that has a rotor. The rotor is provided with a shaft and a magnet surrounds the shaft. The magnet is connected with form fit to the shaft. A follower surrounds the shaft at least in some areas of the shaft. The follower is monolithically connected to the shaft or is connected with form fit to the shaft. The magnet is made of at least two magnet segments and the follower has projections which engage intermediate spaces formed between the magnet segments.

Abstract: A water pump with a housing that has a pump housing part provided with an intake opening and an outlet opening and a motor housing part. An impeller with a shaft is rotatably arranged in the pump housing part. An electric motor is received in the motor housing part. The electric motor is an electronically commutated motor with a rotor and coils. In the housing, control and governing electronics for the electric motor are arranged that have a speed detection, a processor, and a data storage device. The electronics are arranged in the motor housing part and potted therein in a water-tight way. An integrated BUS control module is provided. The control electronics and the governing electronics can be arranged separate from one another on different circuit boards.

Abstract: A water pump for bodies of water such as ponds, aquariums, or fountains containing suspended particles has a housing with a pump housing part provided with an intake opening and an exit opening, in which housing part an impeller with a shaft is rotatably supported, and a motor housing part in which an electric motor is received. As an improvement, an electronically commutated motor is used and the pump has a power input as well as power and control electronics for the motor having an operating state detection device with speed detection, processor and data storage device. The processor can control an interrupt switch between the power input and the motor. In the data storage device certain characteristic lines in regard to normal operating states can be stored.

Abstract: A water pump with a housing that has a pump housing part provided with an intake opening and an outlet opening and a motor housing part. An impeller with a shaft is rotatably arranged in the pump housing part. An electric motor is received in the motor housing part. The electric motor is an electronically commutated motor with a rotor and coils. In the housing, control and governing electronics for the electric motor are arranged that have a speed detection, a processor, and a data storage device. The electronics are arranged in the motor housing part and potted therein in a water-tight way. An integrated BUS control module is provided. The control electronics and the governing electronics can be arranged separate from one another on different circuit boards.

Abstract: A pump arrangement for bodies of water or containers with water subject to biological influences has at least one water pump and a control device controlling the speed of the water pump. At least one temperature sensor measures the water temperature and provides signals of the measured water temperature. The signals are processed in the control device and the speed of the pump water is controlled by the control device based on the signals.

Abstract: A water pump has a housing with a pump housing part, provided with an intake opening and an exit opening, and a motor housing part. An impeller with a shaft is rotatably arranged in the pump housing part. An electric pump motor is arranged in the motor housing part, wherein the pump motor comprises a stator having several coils arranged on several stator poles and a rotor rotating in the stator. The pump motor is an electronically communicated motor. The stator is comprised of a pack of unitary laminations, respectively. The pump motor has control electronics arranged in the motor housing part. The stator with its coils and the control electronics are water-tightly encapsulated.