Patents by Inventor Li-Jung Tu

Li-Jung Tu 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).

  • Electric variable inertia apparatus
    Patent number: 7666114
    Abstract: An electric variable inertia apparatus uses a servo drive device to drive a planetary gear mechanism to which a load assembly is attached to provide variable and wide-ranging rotational inertia. A planetary frame and a ring gear of the planetary gear mechanism act as two input ends of the electric variable inertia apparatus, and a rotated shaft of a sun gear assembly of the planetary gear mechanism acts as a load terminal. The load assembly is rotated at a controlled rotational velocity with the ring gear to generate a widely ranging rotational inertia to change a dissipating degree of an input energy from the planetary frame. The electric variable inertia apparatus can be used in different fields such as shock absorbers, stabilizers, dampers or vibrators in the automotive field, etc.
    Type: Grant
    Filed: January 8, 2007
    Date of Patent: February 23, 2010
    Assignee: National Formosa University
    Inventors: Bor-Jeng Lin, Mi-Ching Tsai, Cheng-Chi Huang, Li-Jung Tu
  • Electric variable inertia apparatus
    Publication number: 20080167156
    Abstract: An electric variable inertia apparatus uses a servo drive device to drive a planetary gear mechanism to which a load assembly is attached to provide variable and wide-ranging rotational inertia. A planetary frame and a ring gear of the planetary gear mechanism act as two input ends of the electric variable inertia apparatus, and a rotated shaft of a sun gear assembly of the planetary gear mechanism acts as a load terminal. The load assembly is rotated at a controlled rotational velocity with the ring gear to generate a widely ranging rotational inertia to change a dissipating degree of an input energy from the planetary frame. The electric variable inertia apparatus can be used in different fields such as shock absorbers, stabilizers, dampers or vibrators in the automotive field, etc.
    Type: Application
    Filed: January 8, 2007
    Publication date: July 10, 2008
    Inventors: Bor-Jeng Lin, Mi-Ching Tsai, Cheng-Chi Huang, Li-Jung Tu