Patent ID: 7347040

Claim:
Fiber guide channel for the pneumatic transport of individual fibers, which are combed out of a feed sliver by an opening cylinder that rotates in an opening cylinder housing, of an open end spinning device, to a spinning rotor running at high speed in a rotor housing that can be subjected to a vacuum, wherein on the input side, the fiber guide channel arranged in a cover element for closing the rotor housing is matched with respect to its width to the mountings of the opening cylinder, the inlet opening and the outlet opening of the fiber guide channel have a slot-like shape and the maximum extension (B) of the inlet opening extends parallel to the rotational axis of the opening cylinder, characterized in that the maximum extension (L) of the outlet opening ( 26 ) of the fiber guide channel ( 11 ) is rotated about an imaginary center line ( 28 ) of the fiber guide channel ( 11 ) by 90°±15° in relation to the maximum extension (B) of the inlet opening ( 25 ), in that the fiber guide channel ( 11 ), between the inlet opening ( 25 ) and outlet opening ( 26 ), has a zone Z, which is substantially cylindrical, in that the cross-section of the fiber guide channel ( 11 ) constantly decreases from the inlet opening ( 25 ) to the zone Z.