Arrangement for endwise clamping a first gas turbine rotor member to another member of a gas turbine rotor

Claim 1

In a multi-part gas turbine rotor comprising a first gas turbine rotor member having a hub with a central bore; another rotor member, annular engagement areas between said rotor members and lying in a radial plane between said rotor members; and means for endwise clamping and maintaining said rotor members in firm, torque-transmitting engagement with each other over said annular engagement areas, said first rotor member central bore having a first shoulder facing away from said second rotor member, said second rotor member having connecting means projecting from an end face into said central bore and beyond said first shoulder, said second connecting means having a shoulder facing said second rotor member and said first shoulder, said connecting means including resilient means engaging both said shoulders, and securing means securely holding the two rotor members in assembled relation with said resilient means clamped between said shoulders, the improvement in which said resilient means includes a rim engaging said first shoulder and having an annular row of inwardly projecting lever portions, said lever portions having respective inner ends engaging said second shoulder.