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Title: Microfluidic active mixing nozzle for three-dimensional printing of viscoelastic inks

Patent ·
OSTI ID:1480294

The present disclosure relates to a device for three-dimensional ink deposition from an impeller-driven active mixing microfluidic printing nozzle. The device is configured to receive a material property associated with the plurality of fluids and receive a structure property of the printing nozzle. The device then determines a threshold relation between a rotating speed .OMEGA. of an impeller in the nozzle and a volumetric flow rate Q of fluids that flow through the nozzle based on the material property of the plurality of fluids, the structure property of the printing nozzle. Based on the threshold relation, the device then determines an actual volumetric flow rate of the fluids and actual rotation speed of the impeller.

Research Organization:
Harvard Univ., Cambridge, MA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC52-07NA27344; SC0001293
Assignee:
President and Fellows of Harvard College (Cambridge, MA)
Patent Number(s):
10,071,350
Application Number:
15/564,396
OSTI ID:
1480294
Resource Relation:
Patent File Date: 2016 Apr 07
Country of Publication:
United States
Language:
English

References (12)

Clustered mixing system patent August 1986
Cell culture bioreactor patent March 1990
Processes for Preparing Phase Change Inks patent-application February 2007
Apparatus for Mixing Viscous Material patent-application July 2007
Ink Delivery and Color-Blending System, and Related Devices and Methods patent-application May 2008
System and Method for Producing Foamed Milk from Powder patent-application July 2008
Waveform Generator for Microdeposition Control System patent-application January 2009
Selectable Gloss Coating System patent-application September 2009
Inkjet Printing Methods and Inkjet Ink Sets patent-application February 2010
Bio Tank/Gas Replenishment System patent-application March 2010
Liquid Circulation System and Ink-Jet Printer patent-application August 2012
Fluid Circulation patent-application December 2014

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