Method for forming a coating matrix on a shaft and disk assembly for a turbine
AssigneeSiemens Energy, Inc.
InventorsKai Kadau, Michael Clossen-von Lanken Schulz
Life of this patent
Estimating the term…
Abstract
A method for forming a coating matrix on a bore surface of a turbine disk wherein the coating matrix is applied at an interface between the disk and a turbine shaft. The coating matrix enhances thermal conductivity to increase heat transfer from the disk. The method includes providing a receiving surface on the bore surface. The receiving surface is then heated to melt the receiving surface. Next, at least one coating matrix layer is deposited on the receiving surface. The coating matrix layer includes a graphene layer. A pulsed laser system or a robot welding system may be used to melt the receiving section.
Claims22
A method for forming a coating matrix on a component used in a shrink fit arrangement wherein the coating matrix has a higher thermal conductivity than the component, comprising:
- providing a receiving section on the component;
- heating the receiving section to melt the receiving section;
- and
- depositing at least one coating matrix layer on the receiving section.
A method for forming a coating matrix on a component used in a shrink fit arrangement wherein the coating matrix has a higher thermal conductivity than the component, comprising:
- providing a receiving section on the component;
- thermal spraying a graphene layer on the receiving section;
- and
- thermal spraying a copper layer on the graphene layer thereby forming the coating matrix.
A shaft and disk assembly for use in a turbine, comprising:
- a disk having a central bore;
- a shaft received by the central bore, wherein the shaft and central bore are fastened by a shrink fit arrangement;
- and
- a coating matrix located between the central bore and the shaft, wherein the coating matrix has a higher thermal conductivity than the disk.
A shaft and disk assembly for use in a turbine, comprising:
- a disk having a central bore and an outer diameter which includes a plurality of grooves, wherein each groove is adapted to receive an associated blade;
- a shaft affixed to the central bore;
- and
- a coating matrix applied to first and second sides of the disk, the outer diameter, the grooves and between the central bore and the shaft, wherein the coating matrix has a higher thermal conductivity than the disk.
Dependencies are inferred from the claim text.