Weft inserting nozzle of air jet loom and pipe as used therein
A pipe (28) for use in a weft inserting nozzle of an air jet loom has a tapered portion which is formed inside the pipe (28) so as to have a shape which is gradually and continuously enlarged in the direction toward the outlet side of a fluid, thereby the flow speed of the fluid on the out let side...
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| Format: | Patent |
| Sprache: | eng ; fre ; ger |
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| Zusammenfassung: | A pipe (28) for use in a weft inserting nozzle of an air jet loom has a tapered portion which is formed inside the pipe (28) so as to have a shape which is gradually and continuously enlarged in the direction toward the outlet side of a fluid, thereby the flow speed of the fluid on the out let side of the fluid being made larger than that on the inlet side of the fluid, and the pipe (28) has a length of 150 mm or less. The inside of the tapered portion has a shape of which the sectional area or the diameter is gradually and continuously increased as advancing toward the outlet side of the fluid. The tapered portion has a diameter of 3 mm or more on the inlet side of the fluid and a diameter of 5 mm or less on the outlet side of the fluid. The inclination angle of the tapered portion is 0 DEG or more but is 1 DEG or less. |
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