Arrangement for producing a spun thread from a staple fiber strand
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United States of America Patent
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Feb 12, 2008
Grant Date -
May 17, 2007
app pub date -
Oct 15, 2004
filing date -
Dec 11, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An arrangement for producing a spun thread includes a drafting unit having a delivery roller pair and an airjet assembly arranged downstream thereof. In the airjet assembly, a vortex chamber with an air evacuation channel is provided. Furthermore, at least one cleaning channel is provided, which is arranged with a suction opening to the delivery roller pair. This cleaning channel is connected by a mouthpiece to the air evacuation channel. A compressed air opening of an injector channel is located in the area of the mouthpiece. The injector channel increasing the low pressure of the air evacuation channel when required.
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