Pneumatic spinning apparatus

Spinning apparatus (1) according to one of the preceding patent claims, characterised in that the fibre guide duct (11) along its length presents a profile of the cross-section area, which is constant, increasing, or diminishing along the duct length.

Spinning apparatus (1) according to one of the preceding patent claims, characterised in that the fibre guide means (6) extends right into the fibre guide duct (11).

Spinning apparatus (1) according to one of the preceding patent claims, characterised in that the fibre guide duct (11) along its length presents a variable profile of the cross-section area (24), which is laid out in such a manner that a fluid passing through is accelerated and/or is slowed down.

Spinning apparatus (1) according to one of the preceding patent claims, characterised in that inside the fibre guide duct (11) a fluid source and/or a fluid drain is arranged.

Spinning apparatus (1) according to one of the preceding patent claims, characterised in that the contour (30, 31, 32) of the fibre guide duct (11) in portions is straight-lined and/or oval and/or circular and/or annular-segment-shaped and/or kidney-shaped and/or heart-shaped and/or sickle-shaped and/or half-moon-shaped.

Pneumatic spinning apparatus (1) for producing a spun yarn or thread from fibres (20), comprising a nozzle block (2) with a hollow room (3), a spindle (5) arranged in the hollow room (3), at least one jet nozzle (4) serving for generating a rotating air stream in the hollow room (3), a fibre guide means (6) arranged opposite the spindle (5) serving as a false core in the yarn forming process, and a fibre guide duct (11) merging “from outside” into the hollow room (3), characterised in that the fibre guide means (6) extends right into the fibre guide duct 11.