Hilti Aktiengesellschaft

Peter Schmiddunser

Helmut Burger

Ernst-Rudolf Luebkert

Hansjoerg Schwarz

An electric motor includes a stator () secured in the motor housing (), a rotatable rotor (), a fan impeller () arranged on the rotor (), and an annular air duct () arranged between the fan impeller () and the rotor () and having a shroud () spaced from the impeller () by a slot having an axial width (X), a dimensionally stable, with respect to the shroud (), housing stop (), an axially, resiliently displaceable fixing element () forming a stator stop () facing in a same direction as the housing stop (), and a locking element.

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Weil, Germany

Peter Schmiddunser