Process and device for transporting vapor through at least one round spinning nozzle casing
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Nov 14, 2000
Grant Date -
N/A
app pub date -
Mar 23, 1999
filing date -
Jul 8, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention provides a process and device for the spinning of polyamides including transporting vapor through at least one round spinning nozzle casing (5) using an exhaust device (14, 15) that is positioned under at least one round spinning nozzle plate (10). In this process, the vapor is injected tangentially into the upper portion of the applicable spinning nozzle casing (5) and is conducted downward through at least one helical groove (7), which is arranged along the exterior of the applicable spinning nozzle unit (6). The vapor at the lower end of the spinning nozzle unit (6) is conducted against a circular, horizontally positioned groove (8), where it undergoes a change in the direction of flow toward the spinning nozzle plate (10). The vapor is then conducted to the spinning nozzle plate (10) over the inner edge (9) of the circular, horizontally positioned groove (8) and through a first annular passage (11) and, at the spinning nozzle plate (10), is suctioned off by the exhaust device (14, 15) through a second annular passage (12).
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