Patents by Inventor Kar D. Chin

Kar D. Chin 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 with radial cooling channels
    Patent number: 7413406
    Abstract: A turbine blade is cooled by cooling air that flows through a radial cooling channel. The turbine blade includes a root and an airfoil. The flow of cooling air into the cooling channel is limited by a pre-meter orifice to provide a reduced pressure within the cooling channel. The pressure drop results from the cross-sectional area of the pre-meter orifice being less than the cross-sectional area of the adjacent cooling channel. After flowing through the cooling channel, the cooling air exits the cooling channel through a film hole to form a film layer over the airfoil to cool and insulate the turbine blade.
    Type: Grant
    Filed: February 15, 2006
    Date of Patent: August 19, 2008
    Assignee: United Technologies Corporation
    Inventors: Edward F. Pietraszkiewicz, Om P. Sharma, Kar D. Chin