Patents by Inventor Lyubov Vasilievna Markova

Lyubov Vasilievna Markova 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).

  • Apparatus for measuring soot content in diesel engine oil in real time
    Patent number: 6842234
    Abstract: An apparatus for measuring soot content in diesel engine oil in real time comprises an optical rod capable of transmitting light and having a boundary surface adapted to be in contact with the diesel engine oil and first and second end portions, a light-emitting portion, and a first optical fiber connected to the light-emitting means. The first optical fiber is adapted to transmit light from the light-emitting means to the first end portion of the optical rod in an aperture angle of the optical fiber to the boundary surface. The apparatus also comprises a light-receiving portion adapted to receive light from the optical rod and output a signal corresponding to the received light power. The refractive index of the optical rod is larger than the refractive index of the diesel engine oil. The aperture angle of the optical fiber is equal to or larger than a critical angle reduced to air at which the light is totally reflected by the boundary surface.
    Type: Grant
    Filed: November 8, 2002
    Date of Patent: January 11, 2005
    Assignee: Korean Institute of Science and Technology
    Inventors: Hosung Kong, Hung-Gu Han, Eui-Sung Yoon, Lyubov Vasilievna Markova, Mikhail Savich Semenyuk
  • Apparatus for measuring soot content in diesel engine oil in real time
    Publication number: 20040021849
    Abstract: An apparatus for measuring soot content in diesel engine oil in real time comprises an optical rod capable of transmitting light and having a boundary surface adapted to be in contact with the diesel engine oil and first and second end portions, a light-emitting portion, and a first optical fiber connected to the light-emitting means. The first optical fiber is adapted to transmit light from the light-emitting means to the first end portion of the optical rod in an aperture angle of the optical fiber to the boundary surface. The apparatus also comprises a light-receiving portion adapted to receive light from the optical rod and output a signal corresponding to the received light power. The refractive index of the optical rod is larger than the refractive index of the diesel engine oil. The aperture angle of the optical fiber is equal to or larger than a critical angle reduced to air at which the light is totally reflected by the boundary surface.
    Type: Application
    Filed: November 8, 2002
    Publication date: February 5, 2004
    Inventors: Hosung Kong, Hung-Gu Han, Eui-Sung Yoon, Lyubov Vasilievna Markova, Mikhail Savich Semenyuk