Abstract: A vacuum cleaner includes a drive unit configured to generate a suction air stream, a vacuum attachment, a separator device disposed between the vacuum attachment and the drive unit and a control unit. The control unit is configured to influence an input power to the drive unit as a manipulated variable so as to control the suction power at the vacuum attachment as the controlled variable. The suction power at the vacuum attachment is controllable at a predefined level.

Abstract: A vacuum cleaner includes a drive unit configured to generate a suction air stream, a vacuum attachment, a separator device disposed between the vacuum attachment and the drive unit and a control unit. The control unit is configured to influence an input power to the drive unit as a manipulated variable so as to control the suction power at the vacuum attachment as the controlled variable. The suction power at the vacuum attachment is controllable at a predefined level.

Abstract: In a vacuum cleaner blower (1) consisting of an electric drive motor (2) and a support cage (10) for receiving the structural modules of the drive motor such as stator pack (6), rotor (7) and brush holders (8) including carbon brushes (9) as well as an at least single stage blower unit driven by the motor including a deflector (11), impeller (12) and suction hood (4), the deflector being formed as a support cage lid including a bearing seat for the rotor (7) and the support cage (10) being formed for a mounting direction (C) of its structural modules in the axial direction of the blower and for direct contacting and the brush holder (8) of the carbon brushes being provided adjacent to the upper side (B) of the support cage which also faces the deflector (11).

Abstract: The invention relates to a laundry treatment apparatus like washing machines, laundry dryers or a washer-dryers with a rotatably mounted drum (6) with an at least approximately horizontal axle and with a drive motor (10) structured as a synchronous motor (10) energized by permanent magnets arranged on the drum (6) shaft, the stator (16) of the motor (10) being provided with a winding (18) which is energized by a converter. In order to optimize the motor in such machines in respect of energy consumption, noise development and costs it is proposed to design the winding (18) as a single pole winding, whereby the number of stator poles (27) and of the magnet poles (23) is different, and to utilize a frequency converter (104) as the converter the output voltage of which being set such the continuous currents are generated in all winding strands.