The invention relates to a leaf vacuum comprising a housing (12; 152) with an inlet (14) for sucking up items to be vacuumed, an outlet (16) for distributing the vacuumed items to a collection container (20) and comprising a fan (30) which has a fan impeller (62; 156) that can rotate about a rotational axis (64) and is coupled to a drive motor (38; 154) for generating a process air flow from the inlet to the outlet. To improve the handling of the leaf vacuum, according to the invention, the fan impeller is designed as an axial fan impeller (62; 156) and the drive motor (38; 154) is located in the housing (12; 152) in the flow path of the process air between the inlet (14) and the outlet (16). A flow channel (36; 170) for the process air delivered by the axial fan impeller (62; 156) runs between the drive motor (38; 154) and the housing wall.
申请公布号
WO2009144257(A3)
申请公布日期
2010.03.25
申请号
WO2009EP56484
申请日期
2009.05.27
申请人
ALFRED KAERCHER GMBH & CO. KG;DIEHL, RALPH;STEWEN, CHRISTIAN;LINDAUER, ROLF;KURMANN, RAINER;MUELLER, ANDREAS;SCHLOETZER, EUGEN
发明人
DIEHL, RALPH;STEWEN, CHRISTIAN;LINDAUER, ROLF;KURMANN, RAINER;MUELLER, ANDREAS;SCHLOETZER, EUGEN