Abstract: A stator for an electric motor is provided, the stator comprising a hollow cylindrical stator yoke and comprising a stator star arranged within the stator yoke and including a plurality of radially outwardly extending stator teeth having tips contacting, in the assembled state, corresponding connection positions on the inner circumference of the stator yoke, wherein the stator yoke and the stator star are each formed by a laminated metal sheet pack, wherein the metal sheet pack of the stator star comprises sheet metal layers of stator sheets, closed in the circumferential direction, comprising stator teeth connected with each other via pole shoe bridges and sheet metal layers of individual stator teeth spaced with respect to each other in the circumferential direction. Each of the pole shoe bridges may have at least one material recess extending in the radial direction.

Abstract: A stator for an electric motor is provided, the stator comprising a hollow cylindrical stator yoke and comprising a stator star arranged within the stator yoke and including a plurality of radially outwardly extending stator teeth having tips contacting, in the assembled state, corresponding connection positions on the inner circumference of the stator yoke, wherein the stator yoke and the stator star are each formed by a laminated metal sheet pack, wherein the metal sheet pack of the stator star comprises sheet metal layers of stator sheets, closed in the circumferential direction, comprising stator teeth connected with each other via pole shoe bridges and sheet metal layers of individual stator teeth spaced with respect to each other in the circumferential direction. Each of the pole shoe bridges may have at least one material recess extending in the radial direction.

Abstract: A fan for a gas burner system where at the outflow side of the fan a combustion gas is fed in, in order to form a flammable mixture of gas and air, the fan comprising a spiral-shaped fan housing having a rotational axis and an air outlet; the air outlet of the fan housing widening like a snail shell towards the outflow side of the fan; an impeller that is arranged concentric to the rotational axis in the interior of the fan housing; and an electric motor for driving the impeller, which is integrated at the center of the impeller.

Abstract: The invention relates to a cooling apparatus for an electric component such as a CPU, a memory or power semiconductor, such as transistors or LEDs, or a processor. The cooling apparatus comprises a heatsink, an impeller that coaxially encloses the heatsink, and a drive motor for the impeller. The heatsink takes the form of a stationary hub having a base for introducing heat from the electronic component that is to be cooled, the hub widening towards the base. Cooling fins are thermally coupled to the hub, the cooling fins being given a spiral-like curve similar to the blades of the impeller. Due to the special design of the hub and the cooling fins as well as the use of a radial flux motor, a highly efficient, particularly compact cooling apparatus can be realized.

Abstract: The invention relates to a cooling apparatus for an electric component such as a CPU, a memory or power semiconductor, such as transistors or LEDs, or a processor. The cooling apparatus comprises a heatsink, an impeller that coaxially encloses the heatsink, and a drive motor for the impeller. The heatsink takes the form of a stationary hub having a base for introducing heat from the electronic component that is to be cooled, the hub widening towards the base. Cooling fins are thermally coupled to the hub, the cooling fins being given a spiral-like curve similar to the blades of the impeller. Due to the special design of the hub and the cooling fins as well as the use of a radial flux motor, a highly efficient, particularly compact cooling apparatus can be realized.

Abstract: A fan for a gas burner system where at the outflow side of the fan a combustion gas is fed in, in order to form a flammable mixture of gas and air, the fan comprising a spiral-shaped fan housing having a rotational axis and an air outlet; the air outlet of the fan housing widening like a snail shell towards the outflow side of the fan; an impeller that is arranged concentric to the rotational axis in the interior of the fan housing; and an electric motor for driving the impeller, which is integrated at the center of the impeller.

Abstract: The invention relates to a diagonal fan having a housing, an impeller driven by an electric motor whose hub together with an air conduction sleeve surrounding the impeller defines an essentially annular flow channel having an air intake opening and an air exit opening. The hub takes the form of a truncated cone that widens towards the air exit opening, the air conduction sleeve being essentially profiled, the electric motor being held in the housing by means of bridges that essentially extend in a radially outwards direction. The invention is characterized by the fact that the bridges to secure the motor are arranged in the region of the air intake opening of the flow channel.