Abstract: A heating device as well as a method for the operation thereof. The heating device has an outer housing that surrounds an installation space. The components of heating device are arranged inside or on the outer housing, particularly a burner unit, a fan, a fuel valve and as an option a circulation pump. At least one of these units comprises at least one electrical and/or electronic component. On one or more of the anyway present electrical and/or electronic components at least one gas sensor is arranged on the outer housing and/or inside the installation space, particularly on a support or a circuit board of the respective electrical and/or electronic component. The at least one gas sensor is configured to create a sensor signal that describes the presence and/or concentration of at least one gas component in the atmosphere. Based thereon leakages, faults, undesired backflow, etc. can be determined. Thereupon a respective measure can be initiated, e.g.

Abstract: The disclosure relates to an electric motor, in particular configured as an internal rotor motor, for driving a fan having a stator, a rotor, a drive shaft, motor electronics disposed on a first axial side of the stator, a first cooling impeller which is associated with the motor electronics and disposed on the first axial side of the stator on the drive shaft and generates a first cooling air flow at least to the motor electronics during operation of the electric motor, and a second cooling impeller which is disposed immediately adjacent the stator on a second axial side of the stator opposite the first axial side and has impeller blades that generate a second cooling air flow at least in the axial direction along the stator during operation of the electric motor.

Abstract: The disclosure relates to an electric motor, in particular configured as an internal rotor motor, for driving a fan having a stator, a rotor, a drive shaft, motor electronics disposed on a first axial side of the stator, a first cooling impeller which is associated with the motor electronics and disposed on the first axial side of the stator on the drive shaft and generates a first cooling air flow at least to the motor electronics during operation of the electric motor, and a second cooling impeller which is disposed immediately adjacent the stator on a second axial side of the stator opposite the first axial side and has impeller blades that generate a second cooling air flow at least in the axial direction along the stator during operation of the electric motor.

Abstract: The invention refers to a connector unit formed out a side piece of a blower housing and an engine mounting plate for a drive motor of a blower, whereby the engine mounting plate is attachable to the side piece in a variety of rotational or alternatively angular positions vis-à-vis a rotational axis that runs in an axial direction to the side piece.

Abstract: The invention relates to a blower wheel (1) in a one-piece design having a bottom disk (12) and a cover disk (11) between which a blade ring is formed having multiple blower wheel blades (13) disposed in the circumferential direction at a spacing from one another, wherein the bottom disk (12) defines a maximum radial diameter da and the cover disk (11) forms an axial intake opening (25) having a diameter di, wherein the cover disk (11) extends radially outwards from the circumferential edge (14) which forms the intake opening (25) and has a maximum outer diameter dt, and wherein an outer diameter ratio dt/da is defined in a range from 0.6 to 0.8.

Abstract: The invention relates to a rotor (30) of an electric motor having a shaft (33) and a magnet (32) disposed on said shaft (33), wherein the magnet (32) is attached to the shaft (33) using an injection molded plastic material and the plastic material forms a cooling vane (31) which generates a cooling air flow when the rotor (30) is in operation.