Patent ID: 9353636
Filing Date: 2016-05-31
CPC Classification: B23P,F01D,F05D,Y10T

Claim Text:
1. A process for replacing a first nozzle block coupled to a nozzle chamber with a second nozzle block comprising: removing the first nozzle block from the nozzle chamber, the nozzle chamber comprising a main body having at least one inlet, at least one passage and at least one exit; coupling inner and outer retaining rings to the nozzle chamber main body; engaging the second nozzle block with the inner and outer retaining rings so as to couple the second nozzle block to the nozzle chamber main body; forming a bore so as to extend partly in one of the inner and outer retaining rings and partly in the second nozzle block; and locating an anti-rotation pin in the bore, providing plugs in existing bolt holes in the nozzle chamber main body and securing these plugs via welding, wherein the removing comprises removing bolts coupling the first nozzle block to the nozzle chamber.