e TANK ENGINES: GTD-1250 GAS-TURBINE TANK ENGINE

GTD-1250 GAS-TURBINE TANK ENGINE


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Description

The GTD-1250  is  designed  to  power  the  T-80U main battle tank and various wheeled (tracked) vehicles. The
engine  features  large  gas-dynamic  stability  margins, increased  service  life,  high  reliability,  as  well  as
enhanced  repairability  and  simplicity  of maintenance. The design incorporates unique engineering solutions:
automatic  systems  intended  to  remove  dust  deposits from  cover  plates  of  the  radial-flow  compressor
impellers  and  from  the  high-pressure  turbine  nozzle assembly;  variable  power  turbine  nozzle  assembly;
integrated reduction gearbox. The engine can be provided with positive-displacement hydraulic transmission
intended to enhance the maneuvering and speed characteristics of the battle tank. The GTD-1250 is a multi-
fuel  engine:  it  can  operate  on  diesel  fuel,  kerosene, gasoline and their mixtures.
The engine’s main  features are: a gas generator with the  low- and high-pressure  turbocompressors;  radial-
flow, enclosed, unit-cast compressor impellers provided with cover plates; reverse-flow, multi-injector, annular combustion chamber; single-stage axial-flow turbine of the high-pressure compressor with the cooled noz-
zle assembly; single-stage axial-flow turbine of the low pressure  compressor;  single-stage  axial-flow  power
turbine with the variable nozzle assembly; exhaust pipe with exhaust gas efflux turning coaxially with the longi-
tudinal  engine  axis;  thermal  insulation  of  the  hottest engine  housing  components  and  exhaust  pipe.
Provision is also made for the installation of an oil tank, electric power generator, air cleaner with built-in air-oil
coolers  and  cooling fans.


Specification: