Rolls Royce 1004227 사용자 설명서

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for ease in maintainability.  This unit also requires a reduction gearbox in electrical utility 
applications. 

Several significant upgrades are available for RB211-24C and -24G gas generators which are 
generally included in the RB211-24GT: 

•  DLE “short style” combustor for premix natural gas firing.  The new “short style” reduces 

acoustic resonance and dynamic pressure pulsations compared with the previous “long style” 
DLE burner.  The DLE retrofit can achieve less than 25 ppm of NO

x

 and CO.  There are over 

80 units with over 1.5 million hours experience with the DLE combustor (may includes all 
DLE styles).  The DLE burner generally requires no manual tuning in the field. 

•  Dual fuel conversion for diffusion flame combustion of natural gas or fuel oil includes the 

swirler burner for improved liquid fuel firing, as well as improved gas firing when it contains 
condensable liquids 

•  Gas generator RB211-24G from -24C.  Includes replacement of the HP turbine assembly, 

including new directionally solidified blades with improved cooling.  Either the user can 
choose to maximize power and efficiency, or extend creep life of components by up to 50% 
by derating the firing temperature 25 F (14 C). 

•  IP Compressor life improvement.  A new stage 7 stator design and new stage 5 and 6 

components reduce frettage due to aerodynamic excitation that ultimately could cause stator 
breakup and downstream damage. 

•  Power turbine upgrade of either RT56 or RT62 for use with higher temperatures from the 

RB211-24G gas generator. The upgrade generally includes blades, vanes, casings and 
diffusers. 

 

 

        -22 

 

      

 26,400 

 

Coberra 264 

 

-24A 

 

 

29,600  Coberra 

6256 

 
-24C 

 

 34,000 

 

Coberra 6456 / 6462 

 
-24G 

 

 

39,600  Coberra 

6562 

 
-24G DLE 

 

 40,500 

 

Coberra 6762 

 
-24GT  

 

 45,000 

 

Coberra 6761