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Main weft insert blower of air jet weaving loom - has yarn entry duct to diverging duct with inlet in wall for air jets providing propulsion force in long common mixing zone
Main weft insert blower of air jet weaving loom - has yarn entry duct to diverging duct with inlet in wall for air jets providing propulsion force in long common mixing zone
A main blower for inserting weft yarn in the shed of an air jet weaving loom comprises a yarn entry duct. This duct connects in the flow direction to an at least approximately conically diverging duct portion of which the wall is provided with inlet openings for a fluid (compressed air) arranged such that the fluid jets enter a common mixing chamber defined by that wall, a nozzle tube connecting with the downstream end of that chamber. The openings are preferably directed such that the fluid jets exert a propelling force on the yarn which is continuously distributed over a predetermined length (L) within the chamber.
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