公开(公告)号：US3583140A

公开(公告)日：1971-06-08

申请号：US3583140D

申请日：1969-08-12

Applicant: BASF AG

Inventor： LORENZ FRIEDRICH ,  LABER WALTER

IPC: D02G1/04 ,  D02G1/02 ,  D02G1/16

CPC classification number: D02G1/04

Abstract: Apparatus for manufacturing bulky yarns employing flowing gaseous or liquid media by the false twist technique. It consists of a tubular yarn guide chamber and a lateral conduit for the fluid medium disposed perpendicularly to the axis of the guide chamber and opening into same tangentially to the internal wall thereof, the guide chamber being cylindrical and at the yarn inlet end having a drastically reduced cross-sectional area compared to the cross section of the remainder of the chamber. The fluid inlet is located immediately downstream of the yarn inlet end (in the direction of movement of the yarn) in the enlarged portion of the chamber. The latter narrows at a point downstream of the fluid inlet (in the direction of movement of the yarn) and subsequently opens into a tubular duct the internal wall of which contains groovelike recesses over at least part of its length.