FIELD: engines and pumps.
SUBSTANCE: invention relates to engine building. GTE LPC rotor shaft front support comprises roller bearing, which separates support to stator and rotor parts. Stator part comprises support body, which is connected to roller bearing housing and is enveloped with VGV hub with formation of compact annular cavities. One cavity is equipped with resilient ring. Other annular cavity contains shaft oscillations resilient damping element with system of resilient beams. Support stator part includes annular forming elements of air supercharging, breathing and oil cavities. Support rotor part comprises front support trunnion, consisting of hollow cylindrical section with installed in it roller bearing inner ring and labyrinths two crested rings, separating oil and breathing cavities, as well as breathing cavity and supercharging air cavity, which volume of is limited by labyrinth third crested ring, installed on trunnion conical diaphragm. Resilient ring is equipped with single-sided projections mutually shifted along circumference from ring outer and inner sides in one with angular frequency of γv.u.k.=(2.55÷3.82) [unit/rad]. Ring belt is provided with perforation in form of distributed holes. Trunnion is equipped with end bushing. End bushing has sealed diaphragm, dividing volume of bushing on oil and air cavities. In diaphragm last sleeve is made protruding in both sides.
EFFECT: invention widens engine stable operation range of operating modes with rotor shaft vibrations damping without entering into resonance frequencies and increase of compressor and engine as a whole service life.
21 cl, 5 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| 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 |
| 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 SUPPORT (VERSIONS), TURBOJET ENGINE ROTOR SHAFT SUPPORT BODY, JET TURBINE ENGINE ROTOR SHAFT SUPPORT ROLLER BEARING HOUSING, TURBOJET ENGINE ROTOR SHAFT SUPPORT SEALING STAGES | 2015 |
|
RU2603386C1 |
| LOW-PRESSURE COMPRESSOR OF GAS TURBINE ENGINE OF AVIATION TYPE | 2016 |
|
RU2614709C1 |
| LOW-PRESSURE COMPRESSOR OF GAS TURBINE ENGINE OF AVIATION TYPE | 2016 |
|
RU2614708C1 |
| 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 |
|
RU2603387C1 |
| 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 |
|
RU2614029C1 |
| 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 |
|
RU2614017C1 |
| ROTOR SHAFT BEARING OF LOW-PRESSURE COMPRESSOR OF TURBOJET ENGINE (VERSIONS), CYLINDER CONSTITUENT OF ROTOR SHAFT, EXTERNAL TIGHTENING COMPONENT OF ROTOR SHAFT | 2016 |
|
RU2614018C1 |
