Sealing structure of spindle bolt, and gas turbine

Abstract

A first stage rotor disk ( 50 a ) and a connecting member ( 30 ) on the compressor side are fixed by a spindle bolt ( 20 ). The spindle bolt ( 20 ) is covered with a tubular member ( 100 ), between the first stage rotor disk ( 50 a ) and the connecting member ( 30 ) on the compressor side.

1 - 6 . (canceled)  
   
   
       7 . A sealing structure of a spindle bolt fixing together a rotor disk and a connecting member on a compressor side, said sealing structure comprising: 
 a member configured to cover a circumference of the spindle bolt, said member having a hole extending therethrough that is configured to allow the spindle bolt to pass therethrough, said member having a first end configured to abut the rotor disk and a second end configured to abut the connecting member; and    a sealant provided at said first end of said member, said sealant being configured to be arranged between said first end and the rotor disk.    
   
   
       8 . The sealing structure according to  claim 7 , further comprising an additional sealant provided at said second end of said member, said additional sealant being configured to be arranged between said second end and the connecting member.  
   
   
       9 . A sealing structure of a spindle bolt fixing together a rotor disk and a connecting member on a compressor side, said sealing structure comprising: 
 a member configured to cover a circumference of the spindle bolt, said member having a hole extending therethrough that is configured to allow the spindle bolt to pass therethrough, said member having a first end configured to abut the rotor disk and a second end configured to abut the connecting member; and    a sealant provided at said second end of said member, said sealant being configured to be arranged between said second end and the connecting member.    
   
   
       10 . A gas turbine comprising: 
 a compressor that compresses air to produce combustion air;    a combustor that supplies fuel to the combustion air produced by said compressor to generate combustion gas;    a turbine rotor having a path for steam cooling, said turbine rotor including a rotor disk and a connecting member that are fixed by a spindle bolt which is disposed off the rotational axis of the rotor disks, said connecting member having an extended portion that is fixed to said rotor disk and forms a gap between said extended portion and said spindle bolt; and    a member provided in the gap and configured to cover a circumference of said spindle bolt, said member having a hole extending therethrough that is configured to allow said spindle bolt to pass therethrough, said member having a first end abutting said rotor disk and a second end abutting said connecting member.    
   
   
       11 . The gas turbine according to  claim 10 , wherein a protrusion or a step that hinders said member from moving radially outwards of said rotor disk is provided at least on one side of said rotor disk and the connecting member.