FIELD: turbines or turbomachines.
SUBSTANCE: invention relates to gas turbine engineering and can be used in designs of two-shaft gas turbine engines of aircraft and stationary use. Support of two-shaft gas turbine engine comprises high-pressure turbine support bearing installed between low and high pressure rotors, nozzle connected with oil supply line, for oil supply through holes in low-pressure rotor shaft to said bearing, and windows made in low pressure rotor shaft journal. Support is equipped with an additional nozzle interconnected with the oil supply line and installed opposite to the windows in the journal of the shaft of the low pressure rotor, for direct supply of oil through them to the support bearing of the high pressure turbine.
EFFECT: invention provides immediate lubrication and cooling of the high-pressure turbine support bearing at the gas turbine engine start-up and shut-down stages, thereby improving reliability and service life of the two-shaft GTE.
1 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| GAS-TURBINE ENGINE SUPPORT UNIT | 2005 |
|
RU2293193C1 |
| INTER-ROTOR SUPPORT OF GAS TURBINE MOTOR | 2007 |
|
RU2342548C1 |
| FRONT SUPPORT OF LOW-PRESSURE TURBINE OF TWO-SHAFT GAS-TURBINE ENGINE | 2004 |
|
RU2312997C2 |
| TWO-SHAFT GAS TURBINE ENGINE WITH INTERSHAFT BEARING | 2000 |
|
RU2187007C2 |
| DEVICE TO LUBRICATE JOURNAL BEARING OF TWIN-ROTOR TURBOMACHINE | 2015 |
|
RU2612547C1 |
| FRONT SUPPORT OF LP TURBINE ROTOR OF TWO-SHAFT GAS TURBINE ENGINE | 2011 |
|
RU2482303C1 |
| GAS-TURBINE ENGINE INTER-ROTOR SUPPORT | 2004 |
|
RU2265742C1 |
| METHOD OF OPERATING AIRCRAFT GAS TURBINE ENGINE | 2011 |
|
RU2458236C1 |
| AIRCRAFT GAS TURBINE ENGINE | 2011 |
|
RU2458237C1 |
| AIRCRAFT GAS TURBINE ENGINE | 2011 |
|
RU2458235C1 |
