Turbo-Machinery With Flow Deflector System

Abstract

The present application provides a turbo-machine. The turbo-machine may include a number of buckets, a number of nozzles, and a flow deflector system. The flow deflector system may include a bucket deflector and a nozzle deflector so as to limit leakage flow losses therethrough.

1 . A turbo-machine, comprising:
 a plurality of buckets;   a plurality of nozzles; and   a flow deflector system;   the flow deflector system comprising a bucket deflector and a nozzle deflector so as to limit leakage flow losses therethrough.   
     
     
         2 . The turbo-machine of  claim 1 , wherein the bucket deflector comprises one or more bucket extensions. 
     
     
         3 . The turbo-machine of  claim 2 , wherein the one or more bucket extensions comprise an upstream extension. 
     
     
         4 . The turbo-machine of  claim 2 , wherein the one or more bucket extensions comprise a downstream extension. 
     
     
         5 . The turbo-machine of  claim 2 , wherein the one or more bucket extensions comprise a blunt shape or a tip. 
     
     
         6 . The turbo-machine of  claim 2 , wherein the one or more bucket extensions comprise a bucket abradable. 
     
     
         7 . The turbo-machine of  claim 1 , wherein the nozzle deflector comprises one or more nozzle extensions. 
     
     
         8 . The turbo-machine of  claim 7 , wherein the one or more nozzle extensions comprise an upstream extension. 
     
     
         9 . The turbo-machine of  claim 7 , wherein the one or more nozzle extensions comprise a downstream extension. 
     
     
         10 . The turbo-machine of  claim 7 , wherein the one or more nozzle extensions comprise a nozzle abradable. 
     
     
         11 . The turbo-machine of  claim 7 , wherein the one or more nozzle extensions comprise a nozzle cavity. 
     
     
         12 . The turbo-machine of  claim 7 , wherein the one or more nozzle extensions comprise a flange, blunt shape, or tip. 
     
     
         13 . The turbo-machine of  claim 1 , further comprising a turbine. 
     
     
         14 . The turbo-machine of  claim 1 , further comprising a compressor. 
     
     
         15 . A method of limiting leakage flow losses in a turbine, comprising:
 flowing a leakage flow through a nozzle clearance;   placing a bucket extension into an axial gap between a bucket and a nozzle adjacent to the nozzle clearance;   overlapping the bucket extension in the axial gap with a nozzle extension to limit the leakage flow therethrough; and   directing the leakage flow exiting the axial gap in a direction of a main flow.   
     
     
         16 . A flow deflector system, comprising:
 a bucket deflector positioned about a bucket;   a nozzle deflector positioned about a nozzle; and   a nozzle abradable positioned about the nozzle deflector and/or a bucket abradable positioned about the bucket deflector.   
     
     
         17 . The flow deflector system of  claim 16 , wherein the bucket deflector comprises an upstream extension and/or a downstream extension. 
     
     
         18 . The flow deflector system of  claim 16 , wherein the nozzle deflector comprises an upstream extension and/or downstream extension 
     
     
         19 . The flow deflector system of  claim 16 , wherein the flow deflector system is mounted within a turbine. 
     
     
         20 . The flow deflector system of  claim 16 , wherein the flow deflector system is mounted within a compressor.