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US 7,607,818 B2Granted
Extruder with gear pump
AssigneeVMI-AZ Extrusion GmbH
InventorReinhard Uphus
Life of this patent
Estimating the term…
Abstract
An extruder for viscous masses, and including an extruder screw and a positive-displacement gear pump disposed downstream of the extruder screw as viewed in the conveying direction. The positive-displacement gear pump has at least one conveying gear and at least one positive-displacement gear. The axis of the conveying gear is disposed essentially at right angles to the axis of the extruder screw, and the axis of the positive-displacement gear is disposed essentially in the same direction as the axis of the extruder screw.
Claims18
An extruder for viscous masses, comprising:
- an extruder screw (12);
- and
- a positive-displacement gear pump (20) disposed downstream of said extruder screw (12) as viewed in a conveying direction, wherein said positive-displacement gear pump (20) is provided with at least one conveying gear (22, 222) and at least one positive-displacement gear (32), further wherein an axis (23) of said at least one conveying gear (22, 222) is disposed essentially at right angles to an axis (13) of said extruder screw (12), and wherein an axis (33) of said at least one positive-displacement gear (32) is disposed essentially in the same direction as said axis (13) of said extruder screw (12), wherein said at least one conveying gear (22,222) and said at least one positive-displacement pear (32) are embodied as bevel gears that mesh with one another.
Dependencies are inferred from the claim text.