Abstract: The present disclosure relates to a vacuum cleaner comprising an electric motor 3 and a blower producing an air flow through the vacuum cleaner. The electric motor and the blower are placed on a common vertical axis 17. A separator unit 13 is placed laterally with respect to the common axis of the motor and the blower. A bent conduit 19 connects the blower with the separator unit, and one end 21 of the conduit encloses the common vertical axis. The conduit comprises a portion located along the common axis 17 having a double wall forming a closed air pocket 23. This provides damping of noise emitted by the blower/motor and which propagates in the opposite direction of the air flow.

Abstract: The present disclosure relates to a vacuum cleaner comprising an electric motor (3) and a blower (5), producing an air flow (9) through the vacuum cleaner. The electric motor and the blower are placed on a common vertical axis (17). A separator unit (13) is placed lateral with respect to the common axis of the motor and the blower. A bent conduit (19) connects the blower with the separator unit, and one end (21) of the conduit encloses the common vertical axis. In the prolongation of the common axis the conduit comprises a portion with a double wall forming a closed air pocket (23). This provides damping of noise emitted by the blower/motor and which propagates in the opposite direction of the air flow.

Abstract: In a vacuum cleaner comprising a suction fan and a motor for driving the fan, a noise reduction wall construction is provided in front of and spaced from the inlet of the fan. The wall construction comprises two parallel, mutually spaced wall panels which by means of intermediate spacer means are firmly interconnected to form a rigid unit.