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US 6,685,427 B1Granted
Brush seal for a rotary machine and method of retrofitting
AssigneeGeneral Electric Company
InventorsVikas Bhushan Dhar, Norman Arnold Turnquist, Ramesha Guntanur Venkatesh, Lokesh Agrawal
Life of this patent
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Abstract
A seal is provided for controlling flow of a fluid in a fluid path in a rotary machine. The seal comprises a brush seal carrier having a front plate and a back plate disposed therein. A brush seal is disposed between the front plate and the back plate. In addition, a flexible member is disposed between the brush seal and the back plate for reducing stress in the brush seal.
Claims22
A seal for controlling flow of a fluid in a fluid path in a rotary machine comprising:
- a brush seal carrier comprising a front plate and a back plate disposed therein;
- a brush seal disposed between said front plate and said back plate;
- and
- a flexible member disposed between said brush seal and said back plate for reducing stress in said brush seal.
1 more element
A turbine comprising:
- a rotor comprising a generally longitudinally extending axis;
- a casing generally coaxially aligned with said axis, said casing circumferentially surrounding and radially spaced from said rotor, said casing comprising an inner circumferential channel generally coaxially aligned with said rotor;
- a brush seal carrier disposed within said casing, said brush seal carrier comprising at least one front plate and at least one back plate;
- a brush seal disposed between said front plate and said back plate;
- and
- a flexible member disposed between said back plate and said brush seal, said flexible member disposed to reduce stress in said brush seal.
3 more elements
A method of retrofitting a rotary machine comprising:
- providing a brush seal carrier;
- disposing a front plate and a back plate in said brush seal carrier;
- disposing a brush seal between said front plate and said back plate;
- and
- disposing a flexible member between said brush seal and said back plate for reducing stress in said brush seal.
2 more elements
Dependencies are inferred from the claim text.