Patents by Inventor Sukhwan Choi

Sukhwan Choi 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).

  • Turbine blade (bucket) health monitoring and prognosis using infrared camera
    Patent number: 6796709
    Abstract: An infrared camera is configured to measure a temperature distribution on a surface of at least one rotating turbine bucket. With the measured surface temperature distribution, a condition index is determined which reflects either an overall condition of a bucket or a specific location on the bucket. The condition index can be used to predict the remaining useful life of a turbine bucket, which can be used to optimize maintenance intervals and thereby reduce maintenance costs.
    Type: Grant
    Filed: November 21, 2002
    Date of Patent: September 28, 2004
    Assignee: General Electric Company
    Inventor: Sukhwan Choi
  • Turbine blade (bucket) health monitoring and prognosis using neural network based diagnostic techniques in conjunction with pyrometer signals
    Patent number: 6786635
    Abstract: Oxidation of turbine buckets may cause unexpected and expensive turbine failures. Turbine bucket oxidation condition may be estimated to predict remaining useful bucket life during operation of a turbine by processing time-varying temperature distributions measured with a pyrometer of at least one rotating turbine bucket.
    Type: Grant
    Filed: November 6, 2002
    Date of Patent: September 7, 2004
    Assignee: General Electric Company
    Inventor: Sukhwan Choi
  • Turbine blade (bucket) health monitoring and prognosis using infrared camera
    Publication number: 20040101023
    Abstract: An infrared camera is configured to measure a temperature distribution on a surface of at least one rotating turbine bucket. With the measured surface temperature distribution, a condition index is determined which reflects either an overall condition of a bucket or a specific location on the bucket. The condition index can be used to predict the remaining useful life of a turbine bucket, which can be used to optimize maintenance intervals and thereby reduce maintenance costs.
    Type: Application
    Filed: November 21, 2002
    Publication date: May 27, 2004
    Inventor: Sukhwan Choi
  • Turbine blade (bucket) health monitoring and prognosis using neural network based diagnostic techniques in conjunction with pyrometer signals
    Publication number: 20040086024
    Abstract: Oxidation of turbine buckets may cause unexpected and expensive turbine failures. Turbine bucket oxidation condition may be estimated to predict remaining useful bucket life during operation of a turbine by processing time-varying temperature distributions measured with a pyrometer of at least one rotating turbine bucket.
    Type: Application
    Filed: November 6, 2002
    Publication date: May 6, 2004
    Inventor: Sukhwan Choi