Combination sealing device and turbine engine
The utility model provides a combined sealing device and a turbine engine. The turbine engine comprises the combined sealing device, the combined sealing device is used for being arranged between a rotor and a stator which are in running fit, fluid in a radial gap between the rotor and the stator ge...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model provides a combined sealing device and a turbine engine. The turbine engine comprises the combined sealing device, the combined sealing device is used for being arranged between a rotor and a stator which are in running fit, fluid in a radial gap between the rotor and the stator generates leakage flow in the axial direction, and the combined sealing device comprises a first sealing structure arranged on the rotor and a second sealing structure arranged on the stator; the first sealing structure comprises at least one group of spiral sealing structures, gaps are formed between the spiral sealing structures and the stator, each group of spiral sealing structures comprises a plurality of threads, the second sealing structure comprises at least one group of brush type sealing structures, and the tail ends of brush wires of the brush type sealing structures are in contact with the rotor. The spiral sealing structure and the brush type sealing structure are arranged in a staggered mode in the axia |
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