Patents by Inventor Yufei Mo

Yufei Mo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11020933
    Abstract: The present invention relates to techniques for lowering friction between moving surfaces of, for example, an internal combustion engine. Friction reduction is achieved by adding texture modifications to surfaces that come in contact with each other. Texture modifications that reduce friction in accordance with the present invention include dimples of varying geometries and depths ion the surfaces of components. The present invention also relates to the fabrication technique for applying the texture to the surfaces. In another embodiment, the patterned soft mask is applied onto a large surface (flat or curved including cylindrical rollers surfaces) to be followed by electrochemical etching to imprint the textures onto the component And, in another embodiment, a diamond-like-carbon (DLC) film may be applied to the turbine component to also reduce friction.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: June 1, 2021
    Assignee: The George Washington University
    Inventors: Stephen M. Hsu, Yang Jing, Yufei Mo, Dongyun Hua, Ming Chen
  • Publication number: 20190193372
    Abstract: The present invention relates to techniques for lowering friction between moving surfaces of, for example, an internal combustion engine. Friction reduction is achieved by adding texture modifications to surfaces that come in contact with each other. Texture modifications that reduce friction in accordance with the present invention include dimples of varying geometries and depths ion the surfaces of components. The present invention also relates to the lubrication technique for applying the texture to the surfaces. In another embodiment, the patterned soft mask is applied onto a large surface (flat or curved including cylindrical rollers surfaces) to be followed by electrochemical etching to imprint the textures onto the component And, in another embodiment, a diamond-like-carbon (DLC) film may be applied to the turbine component to also reduce friction.
    Type: Application
    Filed: March 1, 2019
    Publication date: June 27, 2019
    Inventors: Stephen M. HSU, Yang JING, Yufei MO, Dongyun HUA, Ming CHEN
  • Patent number: 10245806
    Abstract: The present invention relates to techniques for lowering friction between moving surfaces of, for example, an internal combustion engine. Friction reduction is achieved by adding texture modifications to surfaces that come in contact with each other. Texture modifications that reduce friction in accordance with the present invention include dimples of varying geometries and depths ion the surfaces of components. The present invention also relates to the fabrication technique for applying the textures to the surfaces. In another embodiment, the patterned soft mask is applied onto a large surface (flat or curved including cylindrical rollers surfaces) to be followed by electrochemical etching to imprint the textures onto the component. And, in another embodiment, a diamond-like-carbon (DLC) film may be applied to the turbine component to also reduce friction.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: April 2, 2019
    Assignee: The George Washington University
    Inventors: Stephen M. Hsu, Yang Jing, Yufei Mo, Dongyun Hua, Ming Chen
  • Publication number: 20140170377
    Abstract: The present invention relates to techniques for lowering friction between moving surfaces of, for example, an internal combustion engine. Friction reduction is achieved by adding texture modifications to surfaces that come in contact with each other. Texture modifications that reduce friction in accordance with the present invention include dimples of varying geometries and depths ion the surfaces of components. The present invention also relates to the fabrication technique for applying the textures to the surfaces. In another embodiment, the patterned soft mask is applied onto a large surface (flat or curved including cylindrical rollers surfaces) to be followed by electrochemical etching to imprint the textures onto the component. And, in another embodiment, a diamond-like-carbon (DLC) film may be applied to the turbine component to also reduce friction.
    Type: Application
    Filed: February 21, 2012
    Publication date: June 19, 2014
    Applicant: The George Washington University
    Inventors: Stephen M. Hsu, Yang Jing, Yufei Mo, Dongyun Hua, Ming Chen