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168 Results for 'Engineering'
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Technology
BEARINGLESS ROTATING ELECTRIC MACHINE WITH FIELD WEAKENING
UW researchers have discovered that a bearingless permanent magnet motors can be designed to operate in the field-weakening regime. They have found that the airgap length and permanent magnet thicknes...
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Eric Severson, Bharat Ramadas | P230035US01
Technology
SYSTEM AND METHOD FOR ELECTRIC MACHINE COOLING
UW researchers a novel cooling method for radial flux machines using a heat exchanger, which is placed inside the radial cooling ducts, encircling stator slots, and featuring coolant flow in the circu...
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Bulent Sarlioglu, Gokhan Cakal | P220228US01
Technology
CURRENT SOURCE INVERTER USING BIDIRECTIONAL SWITCHES WITH BIDIRECTIONAL POWER FLOW CAPABILITY
UW Madison researchers have developed a current-source inverter topology (H7-CSI-BD) combined with two new modulation schemes that have four-quadrant power flow, high power density, high efficiency, h...
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Thomas Jahns, Hang Dai, Bulent Sarlioglu, Renato Amorim Torres, Woongkul Lee | P210209US02
Technology
ELECTROHYDRODYNAMIC INKJET PRINTING DEVICES, SYSTEMS, AND METHODS
UW-Madison researchers have developed a new EHD inkjet printing device with a groundless printhead. By separating the printhead and the substrate, the entire system can be made modular such that the p...
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Hantang Qin, Liangkui Jiang, Rayne Wolf | P240310US02
Technology
PRE- AND POST- TREATMENT METHODS FOR PRODUCING CARBON NEGATIVE SUPPLEMENTARY CEMENTITIOUS MATERIALS BY DIRECT AIR CAPTURE AND SEQUESTRATION OF CO2
UW-Madison researchers have developed a method for producing carbon negative supplementary cementitious materials utilizing a carbon mineralization-based direct air capture process named DDAC-REACT (D...
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Bu Wang, Robert Anex, Zhai Hang | P230432US02
Technology
CEMENTITIOUS MATERIALS AND METHODS OF MAKING AND USING SAME
UW-Madison researchers have developed a method to produce carbon negative supplementary cementitious materials (SCM) utilizing a carbon mineralization-based direct air capture process named DDAC-REACT...
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Bu Wang, Robert Anex | P220309US02
Technology
ELECTRIC MOTOR PROVIDING BEARING-FORCE UNLOADING
UW-Madison researchers have developed a hybrid electric machine bearing system that uses both gas and electromagnetic shaft support. The windings of the electric motor are used to reduce the loading o...
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Eric Severson, Nathan Petersen | P230289US01
Technology
BEARINGLESS ELECTRICAL MACHINES WITH REDUCED NUMBER OF INVERTERS
UW researchers invented a novel twin bearingless machine drive configuration that uses a reduced number of inverters. Twin bearingless machine configurations have two bearingless machines rated for ha...
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Eric Severson, Zhouzhou Wang | P220108US01
Technology
Anodizing Pen
A recent IBISWorld report assessed that the services of electroplating, plating, polishing, anodizing, and coloring of metals accounted for almost one third of the US metal treating market, which they...
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Brandon Behringer, Allen Rocha | T190058US02
Technology
Early Intermittent Ground Fault Detection for Stators in High-Impedance Grounded Generators
Researchers at the University of Wisconsin-Platteville have created a technique for detecting stator intermittent ground faults in utility-scale generators. These intermittent ground faults can cause ...
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Nader Safari-Shad | T230014WO01
Technology
HIGH-FREQUENCY GROUP III-NITRIDE-BASED HIGH ELECTRON MOBILITY TRANSISTORS WITH HIGH-ALUMINUM CONCENTRATION BARRIERS AND RECESSED GATES
UW-Madison researchers have developed improved Group III-nitride based high electron mobility transistors (HEMTs). The HEMTs combine a high-aluminum-content barrier layer with a recessed gate that pro...
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Chirag Gupta, Swarnav Mukhopadhyay, Shubhra Pasayat, Jiahao Chen | P230152US01
Technology
MECHANICALLY STABLE AND HIGH CELL DENSITY HONEYCOMB RETINAL SCAFFOLD DESIGN FOR TRANSPLANTATION THERAPY OF PHOTORECEPTOR CELLS AND RETINAL PIGMENT EPITHELIUM
UW-Madison researchers have developed photoreceptor scaffolds that can be used for transplantation of organized photoreceptor tissue, with or without retinal pigment epithelial cells, which may improv...
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Zhenqiang Ma, Inkyu Lee, Juhwan Lee, Michael Phillips, David Gamm, Shaoqin Gong | P200035US02
Technology
HIGH ENERGY 3-D PRINTER EMPLOYING CONTINUOUS PRINT PATH
UW-Madison innovators have designed a continuous helical 3D metal printer with an unbounded rotating powder volume. In one embodiment, the powder bed system exists as a torus, where powder is deposite...
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Thomas (Rock) Mackie, Brandon Walker, Nathan Schumacher | P210260US01
Technology
Forming Syntactic Foams Using Selective Laser Sintering
Composite materials are used in the aerospace, automotive, marine and defense industries because of their enhanced specific mechanical properties and functionality. One category of composite materials...
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Pavana Prabhakar, Hridyesh Raj Tewani | P230100US02
Technology
POWDER DEPOSITION APPARATUSES AND METHODS
UW-Madison researchers have developed a high throughput powder spreadability testing system that can test powder spreadability at multiple layer thicknesses, multiple substrate materials, multiple bla...
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Lianyi Chen, Luis Izet Escano | P240087US01
Technology
AEROSOL JET PRINTER PROVIDING IN-FLIGHT AEROSOL CHARACTERIZATION
Real-time measurement of the printed line of an aerosol jet printer provides a good indication of whether the printing process is correctly configured. However, the complexity of the printing process...
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Scott Sanders, Joseph Andrews, Mario Trujillo | P210390US01
Technology
HIGH-EFFICIENCY DRIVE CIRCUIT AND BIDIRECTIONAL FET
Typically, bidirectional switching elements are fabricated using two FET devices, for example, arranged in series with opposite polarities, each device shunted by a diode to steer current to the prope...
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Chirag Gupta, Daniel Ludois, Shubhra Pasayat | P220279US02
Technology
AEROSOL JET PRINTED QUANTUM DOT MATRIX
Quantum dots are nanometer-sized semiconductors with optical properties that result from a combination of their small size and quantum mechanical effects. In one important application, quantum dots ma...
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Joseph Andrews, Anna Meredith | P240047US01
Technology
LASER-BASED MANUFACTURING PROCESSES AND APPARATUSES
UW-Madison researchers have developed an optical sensor for monitoring of laser-based manufacturing processes such as 3D printing. The device uses wavelength-swept lasers tuned across the absorption ...
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Scott Sanders, Lianyi Chen, Matthias Beuting | P230346US01
Technology
CHROMIUM-MOLYBDENUM-ALUMINUM ALLOYS WITH OXIDATION-RESISTANCE IMPARTED BY THERMAL PRE-TREATMENT
UW-Madison researchers have developed an alloy of chromium, molybdenum and aluminum that has shown survivability up to 1600 degrees C, as well as over exposure times of 120 hours through multiple ther...
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Dan Thoma, Michael Niezgoda | P230315US01
Technology
COLD-SPRAYED TANTALUM COATINGS AND RELATED METHODS
UW-Madison researchers have developed cold-sprayed tantalum coatings configured to absorb a hydrogen species from an atmosphere, e.g., a gaseous region surrounding a plasma. The technology can be app...
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Oliver Schmitz, Kumar Sridharan, Mykola Ialovega, Hwasung Yeom, Tyler Dabney, Danah Velez, Marcos Navarro Gonzalez, Evan Willing | P220126US02
Technology
Additive-Free Method of Zinc Electrodeposition
The need for corrosion-resistant materials is present throughout automotive, aerospace, and electronics manufacturing as well as many other metal and polymer manufacturing industries. Electrodepositio...
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Sujat Sen, Seth King | T210038US02
Technology
ALLOY AND COMPOSITE FORMATION BY REACTIVE SYNTHESIS DURING ADDITIVE MANUFACTURING
UW researchers have discovered methods for forming metal alloys, including refractory intermetallic alloys, and ceramic composites using reactive synthesis during additive manufacturing (AM). In the A...
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John Perepezko, Dan Thoma, MD Islam, Longfei Liu | P210326US02
Technology
COMPRESSION IGNITION ENGINE WITH IGNITER AND PILOT INJECTOR
UW-Madison researchers have developed advanced fuel ignition technologies for use in flexible and fuel agnostic combustion engines. The technology employs a secondary "pilot" injector direct...
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David Rothamer, Sage Kokjohn, Harsh Darshan Sapra, Randy Hessel, Eri Amezcua Cuellar | P230108US01
Technology
DEVICE AND METHOD FOR EVALUATING THE SUSCEPTIBILITY OF HOT CRACKING IN ADDITIVE MANUFACTURING
UW-Madison researchers have developed a system and method for evaluating susceptibility of hot cracking in metal additive manufacturing. A tensile test-like substrate is pulled by a tensile test machi...
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Sindo Kou | P220351US01