Nozzle device and yarn processing method

B - Operations – Transporting – 05 – B

Patent

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Details

B05B 1/00 (2006.01) D06B 3/04 (2006.01)

Patent

CA 2076414

ABSTRACT The nozzle device, e.g. for processing of synthetic yarns, comprises a housing (11) with an inlet end (111) and an outlet end (112); the inlet end (111) is located upstream in relation to the outlet end; an inner nozzle member (12) is provided and has a conical outer wall portion (121) and an essentially axial passage (122); an outer nozzle member (14) is provided and has a conical inner wall portion (141); both inner (12) and outer (14) nozzle members are kept in position within the housing (11); the conical outer wall section (121) of the inner nozzle member (12) and the inner wall portion (141) of said outer nozzle member (14) together form outwardly conical gap (16) having an upper or upstream end (161) and a lower or downstream end (162); inlet means (18) are provided for passing a fluid into the housing (11) and into a region (114) thereof adjacent the upper end (161) of the conical gap (16); the conical gap (16) is defined by a generally annular cross-sectional area in any radial plane between the upper (161) and the lower (162) end of the gap (16); according to the invention, means are provided to form at least one pressure-differential area within the cross-sectional area of the gap.

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