公开(公告)号：US10792660B1

公开(公告)日：2020-10-06

申请号：US14595487

申请日：2015-01-13

申请人： NuTech Ventures, Inc.

发明人： Sidy Ndao ,  George Gogos ,  Dennis Alexander ,  Troy Anderson ,  Craig Zuhlke

IPC分类号： B01L3/00

摘要： Systems and methods are described for propelling a liquid droplet in a Leidenfrost state. A microfluidic device embodiment includes, but is not limited to, a solid structure having a patterned surface, the patterned surface including at least a first patterned region having a first Leidenfrost temperature with respect to a fluid material and a second patterned region having a second Leidenfrost temperature with respect to the fluid, the first patterned region adjacent to the second patterned region, the first patterned region defining a path over which a droplet of the fluid is configured to travel in a Leidenfrost state.

公开(公告)号：US11047053B1

公开(公告)日：2021-06-29

申请号：US14595452

申请日：2015-01-13

申请人： NuTech Ventures, Inc.

发明人： Troy Anderson ,  Sidy Ndao ,  Craig Zuhlke ,  Dennis Alexander ,  George Gogos

IPC分类号： C25B11/02 ,  C25B1/04 ,  B01J7/02

摘要： A system embodiment includes, but is not limited to, a solid structure configure to contact each of a material in a liquid phase and a material in a vapor phase, the solid structure including a plurality of microstructures protruding at angles relative to a horizontal plane; and a layer of nanoparticles positioned on the plurality of microstructures, the layer of nanoparticles having a composition that is at least one of a same material as the plurality of microstructures and an oxide of the same material as the plurality of microstructures, the plurality of microstructures defining one or more valleys, each of the one or more valleys positioned between the layer of nanoparticles of adjacent microstructures of the plurality of microstructures, the one or more valleys configured to govern at least one of a size and a shape of a bubble of the material in the vapor phase.

公开(公告)号：US10267567B1

公开(公告)日：2019-04-23

申请号：US14595516

申请日：2015-01-13

申请人： NuTech Ventures, Inc.

发明人： Sidy Ndao ,  George Gogos ,  Dennis Alexander ,  Troy Anderson ,  Craig Zuhlke

IPC分类号： F28D15/00 ,  F28F13/00 ,  F28D15/02

摘要： A monolithic heat-transfer device can include a container wall configured to retain a working fluid, where the container wall is formed of a single material. The container wall also includes an interior surface configured to be in fluid communication with the working fluid. The monolithic heat-transfer device also includes a channel disposed in the interior surface of the container wall, where the channel comprises a microstructure and a nanostructure. The microstructure and the nanostructure are materially contiguous with the single material forming the container wall. In some embodiments, the nanostructure comprises one or more layers of nanoparticles. The monolithic heat-transfer device can be configured as a heat pipe, which can be constructed from the container wall and a second container wall joined together and sealed to one another to contain the working fluid (e.g., using laser welding, electron beam welding (EBW), and so forth).