Article of manufacture for turbomachine

Patent metadata

Field	Value
Publication number	US-2016298461-A1
Application number	US-201615188157-A
Country	US
Kind code	A1
Filing date	Jun 21, 2016
Priority date	Jul 24, 2012
Publication date	Oct 13, 2016
Grant date	—

Abstract

An article of manufacture includes a rotor blade configured for use with a turbomachine. The blade is configured for attachment to a rotor wheel. The blade is configured to substantially reduce the possibility of attachment with an undesired rotor wheel by modification of at least one characteristic of the blade, so that the modification of the characteristic is matched by a complementary characteristic of the rotor wheel. The characteristic of the blade is, neck width, platform length, platform angle, platform height, tang height, or circumferential width. The blade and the wheel comprise a first stage of the turbomachine. The undesired rotor wheel is in a second stage of the turbomachine, where the first stage is different from the second stage. The complementary characteristic of the wheel is, slot opening width, platform opening depth, slot neck width, slot neck angle, slot tang depth, or slot tang width.

First claim

1 . An article of manufacture comprising:
a rotor blade configured for use with a turbomachine, the rotor blade configured for attachment to a rotor wheel; the rotor blade configured to substantially reduce the possibility of attachment with an undesired rotor wheel by modification of at least one characteristic of the rotor blade, so that the modification of the at least one characteristic is matched by a complementary characteristic of the rotor wheel.

2 . The article of manufacture of claim 2 , the at least one characteristic of the rotor blade comprising at least one of:
neck width, platform length, platform angle, platform height, tang height, and circumferential width.

3 . The article of manufacture of claim 2 , wherein the turbomachine is a compressor.

4 . The article of manufacture of claim 3 , wherein the rotor blade and the rotor wheel comprise a first stage of the compressor.

5 . The article of manufacture of claim 4 , wherein the undesired rotor wheel is in a second stage of the compressor, the first stage being different from the second stage.

6 . The article of manufacture of claim 2 , the complementary characteristic of the rotor wheel comprising at least one of:
slot opening width, platform opening depth, slot neck width, slot neck angle, slot tang depth, and slot tang width.

7 . The article of manufacture of claim 2 , wherein the turbomachine is a turbine.

8 . The article of manufacture of claim 7 , wherein the rotor blade and the rotor wheel comprise a first stage of the turbine.

9 . The article of manufacture of claim 8 , wherein the undesired rotor wheel is in a second stage of the turbine, the first stage being different from the second stage.

10 . The article of manufacture of claim 7 , the complementary characteristic of the rotor wheel comprising at least one of:
slot opening width, platform opening depth, slot neck width, slot neck angle, slot tang depth, and slot tang width.

11 . An article of manufacture comprising:
a rotor wheel configured for use with a turbomachine, the rotor wheel configured for attachment to a rotor blade; the rotor wheel configured to substantially reduce the possibility of attachment with an undesired rotor blade by modification of at least one characteristic of the rotor wheel, so that the modification of the at least one characteristic is matched by a complementary characteristic of the rotor blade.

12 . The article of manufacture of claim 11 , the at least one characteristic of the rotor wheel comprising at least one of:
slot opening width, platform opening depth, slot neck width, slot neck angle, slot tang depth, and slot tang width.

13 . The article of manufacture of claim 12 , wherein the turbomachine is a compressor.

14 . The article of manufacture of claim 13 , wherein the rotor blade and the rotor wheel comprise a first stage of the compressor.

15 . The article of manufacture of claim 14 , wherein the undesired rotor blade is for a second stage of the compressor, the first stage being different from the second stage.

16 . The article of manufacture of claim 13 , the complementary characteristic of the rotor blade comprising at least one of:
neck width, platform length, platform angle, platform height, tang height, and circumferential width.

17 . The article of manufacture of claim 12 , wherein the turbomachine is a turbine.

18 . The article of manufacture of claim 17 , wherein the rotor blade and the rotor wheel comprise a first stage of the turbine.

19 . The article of manufacture of claim 18 , wherein the undesired rotor blade is in a second stage of the turbine, the first stage being different from the second stage.

20 . The article of manufacture of claim 7 , the complementary characteristic of the rotor blade comprising at least one of:
neck width, platform length, platform angle, platform height, tang height, and circumferential width.

Assignees

• Gen Electric

Inventors

• Lumpkin Jamie Dean
• Tipton Thomas Robbins
• Aaron Kelvin Rono

Classifications

• F01D5/141 Primary

  Shape, i.e. outer, aerodynamic form (F01D5/148 - F01D5/20 take precedence; blade construction F01D5/147) · CPC title

• F01D5/06

  Rotors for more than one axial stage, e.g. of drum or multiple disc type; Details thereof, e.g. shafts, shaft connections {(F01D5/022, F01D5/023 take precedence)} · CPC title

• F04D19/02

  Multi-stage pumps · CPC title

• F01D25/005

  Selecting particular materials · CPC title

• F05D2220/31

  in steam turbines · CPC title