Vacuum cleaning device with a suction nozzle

Abstract

A vacuum cleaning device has a suction nozzle with a housing and an air guide chamber. The housing has an inflow opening. The suction nozzle further has a brush roller rotatably mounted adjacent to the inflow opening inside the housing. A bearing shaft is mounted within the housing. An air turbine is rotatably supported on the bearing shaft and driven in rotation by the suction air stream generated with the vacuum cleaning device. The bearing shaft has a longitudinal axis and the axis of rotation of the air turbine coincides with the longitudinal axis. The air turbine rotates at a different rpm than the bearing shaft. A planetary gear system is operatively connected between the air turbine and the bearing shaft. The planetary gear system is positioned at least partially within the air guide chamber within the vicinity of a first axial end face of the air turbine such that the air turbine at least partially axially overlaps the planetary gear system. A drive member is operatively connected to the planetary gear system for driving the brush roller.

Dependencies are inferred from the claim text.