Abstract: A vacuum cleaner of protection class II is provided with a connection for a suction hose; a drive motor; at least one electrically non-conductive part; a feed line configured to feed static voltage; and a capacitor device provided with a capacitor group with at least one capacitor. For discharging static voltage, the electrically non-conductive part is electrically conductively connected via at least one contact element to the capacitor device. The feed line is connected to the at least one capacitor. The at least one capacitor outputs the voltage to an electrical power network when a certain charge quantity is exceeded. The at least one contact element can be the motor shaft of the drive motor.

Abstract: A separator for a vacuum cleaner has a cover part from which webs are projecting which are positioned along the circumference of the cover part at a spacing one behind the other with formation of through openings. At least some of the webs are without connection with each other at the end that is facing away from the cover part. The webs are elastically yielding transversely to the longitudinal direction. The webs are positioned in their mounting position with radial pretension on a spider which is fixedly seated on the motor shaft of the vacuum cleaner. Due to centrifugal forces occurring in operation of the vacuum cleaner as a result of the high rotary speed of the motor shaft, the webs of the separator are positioned with their free ends under high force on the spider. The separator is thus reliably entrained by the spider by friction.

Abstract: A separator for a vacuum cleaner has a cover part from which webs are projecting which are positioned along the circumference of the cover part at a spacing one behind the other with formation of through openings. At least some of the webs are without connection with each other at the end that is facing away from the cover part. The webs are elastically yielding transversely to the longitudinal direction. The webs are positioned in their mounting position with radial pretension on a spider which is fixedly seated on the motor shaft of the vacuum cleaner. Due to centrifugal forces occurring in operation of the vacuum cleaner as a result of the high rotary speed of the motor shaft, the webs of the separator are positioned with their free ends under high force on the spider. The separator is thus reliably entrained by the spider by friction.

Abstract: A separator for a wet vacuum cleaner has a bottom and a sidewall connected to the bottom. The sidewall has lamellas delimiting slots, wherein through the slots an air/gas flow enters an interior of the separator, delimited by the bottom and the sidewall, wherein the air/gas flow contains dirt/dust particles and/or water droplets. The lamellas each have at least one radial outer widened section, extending in a rotational direction of the separator, and at least one remaining lamella section, wherein the at least one radial outer widened section and the at least one remaining lamella section delimit together a turbulence chamber, respectively.

Abstract: A separator for a wet vacuum device has a bottom and a sidewall connected to the bottom. The sidewall has stays defining slots between the stays. An air/gas stream, containing particles to be separated from the air/gas stream, enters the separator through the slots near the bottom, and the particles are separated from the air/gas stream by centrifugal force and are expelled from the separator at a spacing from the bottom through the slots. Between 3 and 45 slots are distributed about the circumference of the sidewall. The slots have a slot depth and a slot width, wherein the slot depth is substantially 0.2 up to 2.5 times as large as the slot width. The rotating separator is arranged above the liquid bath such that it agitates the surface of the liquid bath.

Abstract: A wet cleaning apparatus having at least one outlet is provided. The apparatus has an intake fitting, for a suction air stream, which opens out into a liquid container. An upper housing part is disposed on the liquid container and has disposed therein a motor about which at least part of which flows a coolant air flow. At least one turbulence chamber is provided in which the suction air stream and the coolant air flow meet one another at an angle.