FIELD: engines and pumps.
SUBSTANCE: invention relates to engine building. TJE LPC rotor shaft support is equipped with rotor shaft oscillations hydraulic elastic-damping system and comprises roller bearing, which separates support to stator and rotor parts. Stator part comprises roller bearing body, connected to support body. Support body is enveloped with LPC VGV inner body circular element with formation of two compact annular cavities. One of said cavities is equipped with resilient ring, which is equipped with single-sided projections from outer and inner sides, mutually shifted in circle in one with angular frequency of γv.u.k.=(2.2÷4.8) [units/rad]. Second cavity comprises of “squirrel cage” type element made in support body in form of longitudinal resilient beams system, separated by slits made with width in (1.1÷2.4) times higher than beams width, and located with angular frequency γb.b.k., defined in range γb.b.k.=(7.2÷14.4) [units/rad]. Stator part comprises “squirrel cage” cavity forming element connected to support body, air breathing and supercharge cavities with labyrinths covers fixed on it. Oil cavity radial-end garter seal contact segmented sealing band is arranged in roller bearing casing. Support rotor part includes rotor shaft front bearing trunnion, changing into rotor shaft first stage disk forming integral part with it. Roller bearing inner ring is arranged on trunnion, garter seal contact bushing and two multi-crested labyrinths ring, movable locking supercharging air cavity on both sides. Roller bearing housing is made with radial developed flange for connection to support casing front end flange. Flange is equipped with four groups of holes for alignment, attachment, roller bearing disassembly and removal of oil, respectively, mating to similar groups of holes in support housing front end flange.
EFFECT: group of inventions technical result consists in engine stable operation operating modes range expansion with rotor shaft vibrations damping without entering into resonance frequencies and increase of compressor and engine as a whole service life.
25 cl, 6 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| TURBOJET ENGINE ROTOR SHAFT SUPPORT (VERSIONS), TURBOJET ENGINE ROTOR SHAFT SUPPORT GARTER SEAL, TURBOJET ENGINE ROTOR SHAFT SUPPORT SEALING GARTER ASSEMBLY, TURBOJET ENGINE ROTOR SHAFT SUPPORT GARTER SEAL RING SECTION | 2015 |
|
RU2603389C1 |
| TURBOJET ENGINE ROTOR SHAFT GARTER SEAL, TURBOJET ENGINE ROTOR SHAFT SEALING GARTER, JET TURBINE ENGINE GARTER SEAL CONTACT BUSHING, TURBOJET ENGINE ROTOR SHAFT SUPPORT | 2015 |
|
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| GAS TURBINE ENGINE ROTOR SHAFT SUPPORT, GAS TURBINE ENGINE ROTOR SHAFT SUPPORT BODY (VERSIONS), GAS TURBINE ENGINE ROTOR SHAFT SUPPORT ROLLER BEARING HOUSING | 2015 |
|
RU2603375C1 |
| ROTOR SHAFT BEARING OF LOW-PRESSURE COMPRESSOR OF TURBOJET ENGINE (VERSIONS), SEALING SPOOL OF ROTOR SHAFT BEARING, ROTOR SHAFT BEARING BLOCK, CONTACT HUB OF ROTOR SHAFT BRACELET SEALING, OIL-CONTROL RING OF ROTOR SHAFT | 2016 |
|
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|
RU2603374C1 |
| ROTOR SHAFT BEARING OF LOW-PRESSURE COMPRESSOR OF TURBOJET ENGINE (VERSIONS), CYLINDER CONSTITUENT OF ROTOR SHAFT, EXTERNAL TIGHTENING COMPONENT OF ROTOR SHAFT | 2016 |
|
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| SUPPORT OF SHAFT ROTOR OF LOW-PRESSURE COMPRESSOR OF GAS TURBINE ENGINE (VERSIONS), BODY OF SHAFT SUPPORT AND BODY OF BALL-BEARING ROTOR SHAFT SUPPORT | 2016 |
|
RU2614020C1 |
| ROTOR SHAFT BEARING OF LOW-PRESSURE COMPRESSOR OF TURBOJET ENGINE (VERSIONS), CASING OF ROTOR SHAFT REAR BEARING, ROTOR SHAFT COMPONENT, POLYFUNCTIONAL EXTERNAL TIGHTENING COMPONENT OF ROTOR SHAFT, CONNECTION COMPONENT OF ROTOR SHAFT, CASING OF BEARING OF ROTOR SHAFT REAR BEARING | 2016 |
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RU2614029C1 |
| LOW-PRESSURE COMPRESSOR OF GAS TURBINE ENGINE OF AVIATION TYPE | 2016 |
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RU2614709C1 |
| LOW-PRESSURE COMPRESSOR OF GAS TURBINE ENGINE OF AVIATION TYPE | 2016 |
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RU2614708C1 |
