US Patent 10413143 Cleaning device having a nozzle for cleaning a surface

A nozzle arrangement including a brush provided with brush elements having tip portions for contacting a surface and picking up dirt and/or liquid during rotation of the brush about a brush axis, a driving mechanism for rotating the brush, a first deflector element with a first deflector surface that extends substantially parallel to the brush axis and that interacts with the brush during the rotation of the brush for releasing the picked-up dirt and/or the liquid particles, and a second deflector element that is spaced apart from the brush and the first deflector element, the second deflector element having a second deflector surface that is oriented at an angle to the first deflector surface, wherein the second deflector surface deflects the dirt and/or liquid particles, which are released from the brush at the first deflector surface, into an exhaust channel that begins between the first and second deflector elements.