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US 9,175,608 B1Granted
Split ring floating air riding seal for a turbine
AssigneeFlorida Turbine Technologies, Inc.
InventorJacob A Mills
Life of this patent
Estimating the term…
Abstract
A floating air riding seal for a gas turbine engine with a rotor and a stator, an annular piston chamber with an axial moveable annular piston assembly within the annular piston chamber, an annular cavity formed on the annular piston assembly that faces a seal surface on the rotor, and a central passage connecting the annular cavity to the annular piston chamber to supply compressed air to the seal face, where the annular piston assembly is a split piston assembly to maintain a tight seal as coning of the rotor disk occurs.
Claims4
A gas turbine engine comprising:
- a stator with a stator vane;
- a rotor with a rotor blade;
- an annular piston chamber formed in the stator;
- a floating air sealing surface formed on the rotor;
- an annular piston assembly axially moveable within the annular piston chamber;
- an annular cavity formed on an end of the annular piston assembly that faces the floating air sealing surface on the rotor;
- a central passage formed in the annular piston assembly to connected the annular cavity to the annular piston chamber to supply compressed air to the annular cavity;
- and,
- the annular piston assembly being a split piston assembly so that a seal is maintained on the sealing surface of the rotor when coning occurs.
6 more elements
A floating air riding seal comprising:
- a stator;
- a rotor;
- an annular piston chamber formed in the stator;
- a floating air sealing surface formed on the rotor;
- an annular piston assembly axially moveable within the annular piston chamber;
- an annular cavity formed on an end of the annular piston assembly that faces the floating air sealing surface on the rotor;
- a central passage formed in the annular piston assembly to connected the annular cavity to the annular piston chamber to supply compressed air to the annular cavity;
- and,
- the annular piston assembly being a split piston assembly so that a seal is maintained on the sealing surface of the rotor when coning occurs.
6 more elements
Dependencies are inferred from the claim text.