Rotary machines and methods of assembling

A nozzle assembly comprising:nat least one stationary nozzle extending radially inward from a dovetailed first end portion to a second end portion, said first end portion comprising a radially outward facing end surface;an outer ring comprising at least one circumferentially extending groove defined therein, said at least one outer ring groove is configured to receive said first end portion therein such that a radially inward facing surface of said outer ring groove is radially aligned with, and outward from, said radially outward facing end surface of said first end portion; andan attachment member comprising a pin, said attachment member coupled against said radially inward facing surface of said outer ring groove and said radially outward facing end surface of said first end portion such that movement of said first end portion with respect to said outer ring groove is restricted, wherein said radially inward facing surface of said outer ring groove comprises an arcuate groove defined therein sized to receive said pin therein.

A rotary machine comprising:na rotor; andat least one nozzle assembly coupled to said rotor, said at least one nozzle assembly comprising:at least one stationary nozzle extending radially inward from a dovetailed first end portion to a second end portion, said second end portion positioned adjacent said rotor, said first end portion comprising a radially outward facing end surface;an outer ring that substantially circumscribes said rotor, wherein said outer ring comprises at least one circumferentially extending groove defined therein, said at least one outer ring groove is configured to receive said first end portion therein such that a radially inward facing surface of said outer ring groove is radially aligned with, and outward from, said radially outward facing end surface of said first end portion; andan attachment member comprising a pin, said attachment member coupled against said radially inward facing surface of said outer ring groove and said radially outward facing end surface of said first end portion such that movement of said first end portion with respect to said outer ring groove is restricted, wherein said radially inward facing surface of said outer ring groove comprises an arcuate groove defined therein sized configured to receive said pin therein.

A method of assembling a rotary machine, said method comprising:ncoupling at least one stationary nozzle to a rotor such that the at least one stationary nozzle extends radially inward from a dovetailed first end portion to a second end portion, the second end portion positioned adjacent the rotor, the first end portion including a radially outward facing end surface;coupling an outer ring to the rotor such that the outer ring substantially circumscribes the rotor, the outer ring includes at least one circumferentially extending groove defined therein, the at least one groove configured to receive the first end portion therein such that a radially inward facing surface of the outer ring groove is radially aligned with, and outward from, the radially outward facing end surface of the first end portion; andcoupling an attachment member including a pin, against the radially inward facing surface of the outer ring groove and the radially outward facing end surface of the first end portion such that movement of the first end portion with respect to the outer ring groove is restricted.