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1. (WO2017173473) INTERNALLY TEMPERATURE-CONTROLLABLE SCREW, INSTALLATION AND METHOD USING SUCH A SCREW

Pub. No.:    WO/2017/173473    International Application No.:    PCT/AT2017/060086
Publication Date: Fri Oct 13 01:59:59 CEST 2017 International Filing Date: Thu Apr 06 01:59:59 CEST 2017
IPC: B29C 47/60
B29C 47/84
B29C 47/08
Applicants: NEXT GENERATION ELEMENTS GMBH
Inventors: BARTH, Gerold
HOCHREITER, Josef
PICHLER, Thomas
Title: INTERNALLY TEMPERATURE-CONTROLLABLE SCREW, INSTALLATION AND METHOD USING SUCH A SCREW
Abstract:
The invention relates to an internally temperature-controllable screw (1) with a basic body (2), which is arranged rotatably about a longitudinal axis (3) and on which at least one helically formed screw flight (4) is arranged. Arranged within the screw flight (4) is at least one flow channel (5) for passing through a temperature control medium, which is likewise formed helically and following an outer contour of the screw flight (4). The flow channel (5) is formed by an independent hollow profile body (8), which has the helically formed longitudinal shape, wherein the hollow profile body (8) is embedded in the material forming the screw flight (4). The invention also relates furthermore to an installation and also to a method for operating an installation with such a screw (1).