Patent ID: 6094774
Filing Date: 2000-08-01
Classification: A47L

Abstract:
A suction cleaner comprising:a motor having a rotational axis,a blower having a suction side and a blower side,a motor chamber having outflow openings,a silencer element made of a silencing material, said silencer element being provided with flow passages,said motor chamber delimiting a volume which extends at least radially around the motor and the silencer element,said silencer element enclosing the motor radially, thereby forming a silencing chamber around the motor,said flow passages substantially constituting a flow connection from the silencing chamber to the outflow openings in the motor chamber,said motor operating the blower in such a manner that the blower blows a flow of air into the silencer chamber and subsequently through the flow passages and thereafter out through the outflow openings in the motor chamber,wherein the flow passages in the silencer element extend axially along the rotational axis of the motor in substantially their entire length, andwherein the flow passages in the silencer element comprise at least two separate axially extending flow passages which are separated from each other by partition walls.