| 摘要 |
This invention relates to the art of high speed bottle filling machines and particularly to the use of a one-piece liquid filler tube that is inserted down through the neck of a bottle and is adapted to be joined to a tank of the bottle filling machine. The filler tube has an outer tube with an open upper end furnished with an external mounting that is joined to a tank of the bottle filling machine as well as capable of temporarily sealing the mouth of the bottle during the filling. The lower end of the outer tube has a conical tip with a series of large radially spaced discharge holes, and a second series of large radially spaced discharge holes formed in the outer tube adjacent the first series. A coarse mesh screen covers each discharge hole. An inner vent tube extends completely through the outer tube and is joined through the conical tip at the lower end and extends upwardly beyond the open upper end of the outer tube so as to exhaust air from the bottle so the liquid can displace the air leaving the bottle. The inner vent tube has an intermediate conduit that is joined through the wall of the outer tube and serves as a bottle fill height limit means. The combined area of the discharge holes in the outer tube is greater than the effective transverse annular area between the inner vent tube and the outer tube so the liquid is subdivided by the plurality of discharge holes into low pressure, non-turbulent streams to prevent foaming.
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