Patent 8001669 was granted and assigned to United Technologies on August, 2011 by the United States Patent and Trademark Office.
A method of repairing a turbine engine component includes providing a turbine engine component having a first surface and a second surface. A porous structure extends from the first surface to the second surface. The first surface is exposed to a first pressure and the second surface is exposed to a second pressure. The first pressure is higher than the second pressure. A difference between the first pressure and the second pressure is used to pass a cleaning liquid through the porous structure from the first surface to the second surface.