Patent ID: 7040972

Claim:
A power tool, comprising: a housing ( 12 ); and a tool ( 18 , 22 ) disposed on said housing in such a way that the tool is driven in a rotating and/or oscillating manner, the tool being operable using vacuum flow, wherein a radial turbine with a radial turbine wheel ( 34 ) functions as a drive, the radial turbine having means for steadying inflowing and outflowing air in the form of a forward-guiding vane row and a rearward-guiding vane row ( 44 , 48 ), wherein the rearward-guiding vane row ( 48 ) includes air guide bodies ( 52 ) configured as curved blades, wherein the rearward-guiding vane row ( 48 ) functions as a bearing seat for the radial turbine wheel ( 34 ), and wherein air which drives the radial turbine wheel is directed in a center region of the radial turbine wheel and is then suctioned away radially outwardly by an outer edge of the radial turbine wheel.