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Self-balancing air riding seal for a turbine

United States Patent

9,732,622
August 15, 2017
View the Complete Patent at the US Patent & Trademark Office
A turbine of a gas turbine engine has an air riding seal that forms a seal between a rotor and a stator of the turbine, the air riding seal including an annular piston movable in an axial direction under the influence of a pressure on one side with a pressure acting on an opposite side that self-balances the air riding seal during the steady state condition of the engine and lifts off the seal during engine transients.
Mills; Jacob A (Jupiter, FL)
Florida Turbine Technologies, Inc. (Jupiter, FL)
14/ 740,317
June 16, 2015
GOVERNMENT LICENSE RIGHTS This invention was made with Government support under contract number DE-SC0008218 awarded by Department of Energy. The Government has certain rights in the invention.