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US 6,578,849 B2Granted
Sealing configuration, in particular for a rotary machine
AssigneeSiemens Aktiengesellschaft
InventorDetlef Haje
Life of this patent
Estimating the term…
Abstract
A sealing configuration is provided for sealing off a first region from a second region through which a fluid can flow and which can be kept at different pressures. The sealing configuration has a deformation region and a sealing surface connected thereto. The sealing surface is spaced apart from an opposing surface by a sealing gap. The width of the sealing gap depends on a deformation of the deformation region as a result of a differential pressure. The sealing configuration preferably serves to seal off a turbine shaft from a turbine casing or a moving blade from a turbine casing.
Claims18
A sealing configuration, comprising:
- first and second regions for at least one of conducting a fluid flow and being filled with a fluid, said regions to be sealed-off relative to one another and kept at different pressures forming a differential pressure;
- an opposing surface;
- a deformation region;
- a sealing surface connected to said deformation region and spaced apart from said opposing surface by a sealing gap, said sealing gap having a height to be set by a deformation of said deformation region as a result of a force exerted by said differential pressure;
- and
- at least one gap-influencing element disposed on at least one of said sealing surface and said opposing surface.
3 more elements
Dependencies are inferred from the claim text.