Turbomachine nozzle segment having an integrated diaphragm

Abstract

A turbomachine nozzle segment includes a vane having a first end extending to a second end through an airfoil portion. An outer member is positioned at the first end of the vane. The outer member includes a mounting element configured and disposed to secure the turbomachine nozzle segment to a turbomachine. An inner member is positioned at the second end of the vane. The inner member includes an upstream section and a downstream section. An upstream diaphragm member extends substantially radially outwardly from the inner member at the upstream section, and a downstream diaphragm member extends substantially radially outwardly from the inner member at the downstream section. Each of the upstream diaphragm member and down stream member includes an outer surface and an inner surface. One of the outer surface and inner surface of each of the upstream diaphragm member and downstream diaphragm member includes a cartridge mounting member.

1 . A turbomachine nozzle segment comprising:
 a vane including a first end extending to a second end through an airfoil portion;   an outer member positioned at the first end of the vane, the outer member including a mounting element configured and disposed to secure the turbomachine nozzle segment to a turbomachine; and   an inner member positioned at the second end of the vane, the inner member including an upstream section and a downstream section, an upstream diaphragm member extends substantially radially outwardly from the inner member at the upstream section, and a downstream diaphragm member extends substantially radially outwardly from the inner member at the downstream section, each of the upstream diaphragm member and down stream member including an outer surface and an inner surface, one of the outer surface and inner surface of each of the upstream diaphragm member and downstream diaphragm member including a cartridge mounting member.   
     
     
         2 . The turbomachine nozzle according to  claim 1 , wherein the cartridge mounting member is formed on the inner surface of each of the upstream and downstream diaphragm members. 
     
     
         3 . The turbomachine nozzle according to  claim 1 , further comprising: a nozzle cartridge positioned between the upstream and downstream diaphragm members and coupled to the cartridge mounting member, the nozzle cartridge including a main body extending between an upstream end and a downstream end, the nozzle cartridge forming a region defined by the inner member, and the upstream and downstream diaphragm members. 
     
     
         4 . The turbomachine nozzle according to  claim 3 , wherein the nozzle cartridge includes at least one side portion having a dogleg section. 
     
     
         5 . The turbomachine nozzle according to  claim 4 , wherein the inner surface of the nozzle cartridge includes a cartridge mounting element, the cartridge mounting element being configured and disposed to engage with the cartridge mounting member on corresponding ones of the upstream and downstream diaphragm members. 
     
     
         6 . The turbomachine nozzle according to  claim 3 , wherein the main body of the nozzle cartridge includes a substantially linear cross-section extending between the upstream end and the downstream end. 
     
     
         7 . The turbomachine nozzle according to  claim 3 , wherein the main body of the nozzle cartridge includes a generally curvilinear circumferential profile. 
     
     
         8 . The turbomachine nozzle according to  claim 3 , wherein the upstream diaphragm member includes a seal groove element, the downstream diaphragm member includes a seal groove member, and the nozzle cartridge includes seal groove portion, the seal groove portion linking with the seal groove member and seal groove element. 
     
     
         9 . The turbomachine nozzle according to  claim 1 , further comprising: a discourager seal provided on the outer surface of each of the upstream and downstream diaphragm members. 
     
     
         10 . The turbomachine nozzle according to  claim 1 , wherein the inner member includes a curvilinear circumferential profile, the curvilinear circumferential profile comprising about 22.5° of an overall circumferential circumference of a turbomachine nozzle assembly. 
     
     
         11 . The turbomachine nozzle according to  claim 1 , wherein the inner member includes a dogleg section. 
     
     
         12 . A turbomachine nozzle cartridge comprising:
 a main body having an outer surface and an inner surface that extend between an upstream end and a downstream end, the nozzle cartridge being configured and disposed to be mounted between an upstream diaphragm member and a downstream diaphragm member of a turbomachine nozzle.   
     
     
         13 . The turbomachine nozzle cartridge according to  claim 12 , wherein the inner surface of the nozzle cartridge includes a cartridge mounting element, the cartridge mounting element being configured and disposed to engage with a cartridge mounting member on corresponding ones of upstream and downstream diaphragm members of a turbomachine nozzle. 
     
     
         14 . The turbomachine nozzle cartridge according to  claim 12 , wherein the nozzle cartridge includes at least one side portion having a dogleg section. 
     
     
         15 . The turbomachine nozzle cartridge according to  claim 14 , further comprising: a seal grove portion formed in the at least one side portion. 
     
     
         16 . The turbomachine nozzle cartridge according to  claim 12 , further comprising: a first mounting flange arranged at the upstream end and a second mounting flange arranged at the downstream end, each of the first and second mounting flanges extending substantially radially outwardly from the main body. 
     
     
         17 . The turbomachine nozzle cartridge according to  claim 12 , wherein the main body of the nozzle cartridge includes a substantially linear cross-section extending between the upstream end and the downstream end. 
     
     
         18 . The turbomachine nozzle cartridge according to  claim 12 , wherein the main body of the nozzle cartridge includes a generally curvilinear circumferential profile. 
     
     
         19 . The turbomachine nozzle cartridge according to  claim 17 , wherein the generally curvilinear circumferential profile comprising about 22.5° of an overall circumferential circumference of a turbomachine nozzle assembly. 
     
     
         20 . A turbomachine comprising:
 a compressor section;   a turbine section operatively connected to the compressor section; and   a turbine nozzle positioned within the turbine section, the turbine nozzle including:   a vane including a first end extending to a second end through an airfoil portion;   an outer member positioned at the first end of the vane, the outer member including a mounting element configured and disposed to secure the turbomachine nozzle to a turbomachine;   an inner member positioned at the second end of the vane, the inner member including an upstream section and a downstream section, an upstream diaphragm member extends substantially radially outwardly from the inner member at the upstream section, and a downstream diaphragm member extends substantially radially outwardly from the inner member at the downstream section, each of the upstream diaphragm member and down stream member including an outer surface and an inner surface, one of the outer surface and inner surface of each of the upstream diaphragm member and downstream diaphragm member including a cartridge mounting member;   a cooling passage extending from the outer member through the airfoil portion to the inner member; and   a nozzle cartridge including a main body having an outer surface and an inner surface that extend between an upstream end and a downstream end, the nozzle cartridge is mounted between the upstream diaphragm member and the downstream diaphragm member of a turbomachine nozzle.