Patents by Inventor Chen-Huei Kuo

Chen-Huei Kuo 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: 9205504
    Abstract: A self-adjusting power device for high efficiency electrical discharge machining and method thereof is disclosed. A high-voltage arc unit and a low-voltage discharge unit provide a high voltage arc pulse and a low voltage discharge pulse to an electrode respectively. The electrode machines a workpiece and feeds back a gap voltage to a discharge pulse generation unit. The discharge pulse generation unit determines whether the gap voltage is lower than a predetermined voltage or not. If yes, a discharge channel between the electrode and the workpiece is conducted, and the discharge pulse generation unit shuts down the high-voltage arc unit and the low-voltage discharge unit is still operating at ON time and shuts down at OFF time. If no, looping the determination of the discharge pulse generation unit. Therefore, discharge machining energy is accurately controlled and high efficient power saving is achieved.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: December 8, 2015
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Der-Shuen Chen, Chao-Chuang Mai, Chen-Huei Kuo, Chih-Ping Cheng, Chin-Hui Chen
  • Publication number: 20120152907
    Abstract: A self-adjusting power device for high efficiency electrical discharge machining and method thereof is disclosed. A high-voltage arc unit and a low-voltage discharge unit provide a high voltage arc pulse and a low voltage discharge pulse to an electrode respectively. The electrode machines a workpiece and feeds back a gap voltage to a discharge pulse generation unit. The discharge pulse generation unit determines whether the gap voltage is lower than a predetermined voltage or not. If yes, a discharge channel between the electrode and the workpiece is conducted, and the discharge pulse generation unit shuts down the high-voltage arc unit and the low-voltage discharge unit is still operating at ON time and shuts down at OFF time. If no, looping the determination of the discharge pulse generation unit. Therefore, discharge machining energy is accurately controlled and high efficient power saving is achieved.
    Type: Application
    Filed: August 4, 2011
    Publication date: June 21, 2012
    Applicant: Industrial Technology Research Institute
    Inventors: DER-SHUEN CHEN, Chao-Chuang Mai, Chen-Huei Kuo, Chih-Ping Cheng, Chin-Hui Chen
  • Publication number: 20100157637
    Abstract: This invention relates a green-energy power generator for electrical discharge machine, which comprise: an alternating current (AC) power supply, an AC-to-DC power converter, a DC-to-DC power converter, a current limiting unit, a time limiting unit, and a control unit. It can reduce the unnecessary energy consumption and achieve the objective of energy saving.
    Type: Application
    Filed: April 21, 2009
    Publication date: June 24, 2010
    Applicant: Industrial Technology Research Institute
    Inventors: Der-Shuen Chen, Jui-Kuan Lin, Chao-Chuang Mai, Chen-Huei Kuo