Rotary extruder with internally cooled rotor

Details Rotary extruder with internally cooled rotor Rotary extruder with internally cooled rotor

1989-05-03

1989-12-19

Jenkins, Robert W.

Agitating

Rubber or heavy plastic working

Stationary mixing chamber

366147, 4253781, B01F 1506

Patent

active

048879070

ABSTRACT:
A rotor assembly for use in a rotary extruder, comprising a rotor rotatably mounted inside a barrel by means of drive and free end bearing assemblies; a coaxial longitudinal bore extending into the rotor from its free end; a sleeve within the bore defining a thermally insulated central zone disposed radially inward from the plasticizing surface of the rotor, and cooling zones disposed at each end of the sleeve radially inward from the drive and free end bearing assemblies; a conduit disposed within the sleeve defining a longitudinally extending annulus therebetween; and rotatable means providing fluid communication between a coolant inlet and the interior of the conduit, and between the longitudinally extending annulus and a coolant outlet.

REFERENCES:
patent: 3285330 (1966-11-01), Root
patent: 3870451 (1975-03-01), Gokcen
patent: 4734240 (1988-03-01), Chung

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