| 主权项 |
1. A system, comprising:
a multi-stage turbine, comprising:
a first turbine stage comprising a first wheel having a plurality of first blade segments spaced circumferentially about the first wheel;a second turbine stage comprising a second wheel having a plurality of second blade segments spaced circumferentially about the second wheel; andan interstage seal assembly extending axially between the first and second turbine stages, comprising:
a first coverplate coupled to the first turbine stage, wherein the first coverplate comprises a first seal wing;a second coverplate coupled to the second turbine stage, wherein the second coverplate comprises a second seal wing; anda spacer wheel extending from a rotor shaft and configured to engage with the first coverplate and the second coverplate, wherein the spacer wheel comprises a first radial engagement consisting of contact between a first radially outer surface of the spacer wheel and a first radially inner surface of the first coverplate and a second radial engagement consisting of contact between a second radially outer surface of the spacer wheel and a second radially inner surface of the second coverplate, wherein the first radial engagement occurs at the first seal wing of the first coverplate and the second radial engagement occurs at the second seal wing of the second coverplate. |
