Patent ID: 6813809
Filing Date: 2004-11-09
Classification: A47L

Abstract:
A vacuum cleaning tool comprising:a housing (3) having a turbine chamber (6) and a working chamber (13); the housing (3) having a bottom plate (14) with a suction slot (16) extending transversely to a working direction (10) of the housing (3), wherein a suction airflow (7) generated by a vacuum cleaning device connected to the housing (3) enters the working chamber (13) via the suction slot (16); a first flow connection (20) and a second flow connection (30) provided between the working chamber (13) and the turbine chamber (6) allowing the suction airflow (7) to enter the turbine chamber (6); an air turbine (8) arranged in the turbine chamber (6) and rotatably driven about an axis of rotation (9) by the suction airflow (7); a cleaning tool (12) rotatably supported in the working chamber (13) and driven by the air turbine (8); the housing (3) having an outlet opening (21) allowing the suction airflow (7) to exit the turbine chamber (6); wherein the first flow connection (20) is located on a first side of an imaginary plane (22) and the second flow connection (30) is located on a second side of the imaginary plane (22), wherein the imaginary plane (22)is defined by the axis of rotation (9) of the air turbine (8) and a center (23) of the outlet opening (21); and wherein a cross-section of one of the first and second flow connections (20, 30) is adjustable.