Rabbet plate for coupling rotors

A locating plate for locating a first piece of rotary machinery relative to a second piece of rotary machinery such that a rotational axis of the first piece of rotary machinery is coaxial with a rotational axis of the second piece of rotary machinery, the plate comprising:

• a first periphery surface for mating with a first receiving surface of the first piece of rotary machinery;
• a second periphery surface for mating with a second receiving surface of the second piece of rotary machinery;
• an annular groove between the first and second periphery surfaces;
• at least one attaching device for use in attaching the plate to the first piece of rotary machinery;
• and
• at least one removal device for use in removing the plate from the first piece of rotary machinery,
• wherein, the plate is removably attachable to the second piece of rotary machinery by an interference fit between the second periphery surface and the second receiving surface,
• the second periphery surface is sizable independently from the first periphery surface,
• the first receiving surface is a recess in a first coupling that is part of the first piece of rotary machinery,
• the second receiving surface is a recess in a second coupling that is part of the second piece of rotary machinery, and
• the annular groove allows the plate to be positioned in the first and second couplings without the first periphery surface contacting the second receiving surface and without the second periphery surface contacting the first receiving surface.

A turbine rotor assembly, comprising:

• a first turbine rot r having a first coupling;
• a plate for locating the first turbine rotor relative to a second rotor, such that the first turbine rotor mates with and is in contact with the second rotor, the plate having
• a first periphery surface that mates with a first receiving surface of the first turbine rotor;
• a second periphery surface for mating with a second receiving surface of the second rotor;
• at least on connector that connects the plate to the first turbine rotor;
• and
• at least on removal device for use in removing the plate from the first turbine rotor,
• wherein, the plat is removably attachable to the second rotor, and
• the second periphery surface is sizable independently from the first periphery surface;
• wherein the first receiving surface is a recess in a first coupling that is part of the first turbine rotor;
• wherein the second receiving surface is a recess in a second coupling that is part of the second rotor;
• wherein the plate locate the first coupling relative to the second coupling such that a rotational axis of the first turbine rotor is coaxial with a rotational axis of the second rotor;
• and
• the assembly further comprising an annular groove between the first and second periphery surfaces.

A method of adapting a first piece of rotary machinery to a second piece of rotary machine, such that the first piece of rotary machinery mates with and is in contact with the second piece of rotary machinery, the method comprising:

• sizing a second periphery surface of a plate to match a measured size of a second receiving surface of the second piece of rotary machinery;
• attaching the plat to the first piece of rotary machinery such that a first periphery surface of the plate mates with a first receiving surface of the first piece of rotary machinery;
• and
• attaching the plate to the second piece of rotary machinery such that the second periphery surface mates with the second receiving surface,
• wherein, the pint is removably attachable to the second piece of rotary machinery, and
• the second periphery surface is sizable independently from the first periphery surface;
• wherein the first receiving surface is a recess in a first coupling that is part of the first piece of rotary machinery;
• wherein the second receiving surface is a recess in a second coupling that is part of the second piece of rotary machinery;
• wherein the plate locate the first coupling relative to the second coupling such that a rotational axis of the first piece of rotary machinery is coaxial with a rotational axis of the second piece of rotary machine;
• and
• wherein the plate further comprises an annular groove between the first and second periphery surfaces.