FIELD: engines and pumps.
SUBSTANCE: device for radial gap sealing between turbine rotor and stator, primarily gas turbine. The device includes a fixed rim, installed in external housings, and female rotor with blades arranged on it circle-wise. Fixed rim is designed as a package of parallel annular plates attached between flanges. The ends of the plates are provided with combs and grooves, which form a system of projections and recesses in longitudinal section on the rim inner side, and an additional system of projections and recesses in transverse section. The sealing is effective in combination with shroudless moving blades.
EFFECT: improving sealing efficiency due to increase of aerodynamic resistance to leakages between the blade end part and the rim, elimination of parasitic losses along axial longitudinal gaps and gap stabilisation at transient modes.
6 cl, 5 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR REMOVAL OF MOISTURE FROM PERIPHERAL ZONE OF STEAM TURBINE AND LABYRINTH SHROUD SEAL FOR STAGES OF STEAM TURBINES OPERATING IN WET STEAM MEDIUM | 2021 |
|
RU2784635C1 |
| TURBINE OF GAS TURBINE ENGINE | 1998 |
|
RU2151884C1 |
| GAS-TURBINE ENGINE | 1994 |
|
RU2086792C1 |
| TURBOMACHINE ROTOR BLADE AND METHOD OF APPLYING WEAR-RESISTANT MATERIAL THEREON | 2014 |
|
RU2658451C2 |
| MULTISTAGE GAS POWER TURBINE | 2004 |
|
RU2263790C2 |
| DEVICE FOR MECHANICAL CONTROL OF RADIAL CLEARANCE BETWEEN ENDS OF ROTOR BLADES AND STATOR OF COMPRESSOR AND GAS TURBINE ENGINE TURBINE, METHOD OF CONTROLLING RADIAL CLEARANCE BETWEEN ENDS OF ROTOR BLADES AND STATOR OF COMPRESSOR AND GAS TURBINE ENGINE TURBINE | 2017 |
|
RU2702063C2 |
| RADIAL SEAL FOR GAS TURBINE | 1993 |
|
RU2112147C1 |
| COOLING SYSTEM OF GAS-TURBINE ENGINE IMPELLER | 2012 |
|
RU2490473C1 |
| TWO-STAGE TURBINE OF HAS TURBINE ENGINE | 2008 |
|
RU2369749C1 |
| CELLULAR PACKING PRIMARILY FOR STEAM TURBINE | 1999 |
|
RU2150627C1 |
