GEAR-BASED LIQUEFIER ASSEMBLY FOR ADDITIVE MANUFACTURING SYSTEM, AND METHODS OF USE THEREOF
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United States of America Patent
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Jul 21, 2015
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Jul 22, 2014
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Abstract
A liquefier assembly for use in an additive manufacturing system to print three-dimensional parts, which includes an upstream pressure-generating stage and downstream flow-regulating stage. The upstream pressure-generating stage includes a drive mechanism, a liquefier configured to melt a consumable material receive from the drive mechanism to produce a molten material in a pressurized state. The downstream flow-regulating stage includes a gear assembly having a casing assembly and a pair of gears disposed within the interior cavity and engaged with each other to regulate a flow of the pressurized molten material through the gear assembly for controlled extrusion.
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