# US 2010/0166559 A1 · Rotor of a gas turbine > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2010/0166559 A1 - Document ID: US20100166559A1 - Status: Published application - Kind: A1 - Application number: 12/530,501 - Filed: 2008-02-15 - Published: 2010-07-01 - Earliest claimed: 2007-03-12 - Assignees: Siemens Aktiengesellschaft - Inventors: Guido Ahaus; Francois Benkler; Ulrich Ehehalt; Harald Hoell; Karsten Kolk; Walter Loch; Harald Nimpstch; Oliver Schneider; Peter-Andreas Schneider; Peter Schröder; Vyacheslav Veitsman - Web page: https://patentgrep.com/patent/US20100166559A1 ## CPC - F01D 5/066: {Connecting means for joining rotor-discs or rotor-elements together, e.g. by a central bolt, by clamps} - F01D 25/12: Cooling - F05D 2250/13: trapezoidal - F05D 2250/182: crenellated, notched - F05D 2250/183: zigzag - F05D 2250/184: sinusoidal - F05D 2250/70: Shape - F05D 2250/71: curved - F05D 2260/20: Heat transfer, e.g. cooling - F05D 2260/36: by a form fit connection, e.g. by interlocking - F05D 2260/403: through the shape of the drive components - F01D: NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES (machines or engines for liquids F03; non-positive displacement pumps F04D) - F05D: INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS ## Abstract A rotor of a thermal turbomachine, particularly a gas turbine, is provided. The rotor includes a plurality of individual rotor components that are held together by a tie-bold and combined into a unit. The tie-bolt is supported by the assembly of the surrounding rotor components including the tie-bolt and the rotor disks. A hollow shaft which is made up of two tubular sections and a support wheel further support the rotor. ## Claims ### Claim at position 1 -9. (canceled) ### Claim 10 A rotor for a gas turbine, comprising: a compressor-side section; a turbine-side section; a plurality of individual compressor-side rotor components a plurality of individual turbine-side rotor components; a tie-bolt; and a support wheel, wherein the plurality of individual compressor-side and turbine-side rotor components are pressed to each other using a tie-bolt and assembled to form a rotor unit, wherein for each tie-bolt provided, each rotor component has a tie-bolt opening which extends in an axial direction of the rotor, wherein the tie-bolt extends through the respective tie-bolt opening leaving a space between the tie-bolt and the respective rotor component, wherein a wheel support is arranged as a rotor component between the turbine-side rotor section and the compressor-side rotor section and radially supports the tie-bolt. ### Claim 11 (depends on 10) The rotor as claimed in claim 10, wherein support wheel is connected to the tie-bolt in a friction-locking and/or a form-fitting manner. ### Claim 12 (depends on 10) The rotor as claimed in claim 10, wherein a hub of the support wheel is provided with a crowned profile on a connection side. ### Claim 13 (depends on 10) The rotor as claimed in claim 10, wherein the support wheel is shrunk onto the tie-bolt. ### Claim 14 (depends on 10) The rotor as claimed in claim 10, wherein the support wheel is connected to two adjacently arranged rotor components using Hirth toothing. ### Claim 15 (depends on 10) The rotor as claimed in claim 10, wherein the support wheel is provided with a plurality of openings which guides a cooling medium through. ### Claim 16 (depends on 15) The rotor as claimed in claim 15, wherein the plurality of openings are uniformly spaced. ### Claim 17 (depends on 10) The rotor as claimed in claim 10, wherein a center hollow shaft is arranged between the individual compressor-side rotor component arranged nearest to the turbine-side section and the individual turbine-side rotor component arranged nearest to the compressor-side section, wherein the center hollow shaft includes at least two tubular sections and wherein the support wheel is arranged between the at least two tubular sections. ### Claim 18 (depends on 10) The rotor as claimed in claim 10, wherein the plurality of turbine-side rotor components and/or the plurality of compressor-side rotor components are formed in each case by a rotor disk. ### Claim 19 (depends on 10) The rotor as claimed in claim 10, wherein the tie-bolt is encompassed by a cooling separation pipe which guides cooling air through, and wherein the cooling separation pipe is axially split into two sections in order to accommodate the support wheel, and wherein an end of the cooling separation pipe pointing in a direction of the support wheel is guided into a locating slot in the support wheel. ### Claim 20 A thermal turbomachine with a rotor, comprising: a compressor-side section, a turbine-side section, a plurality of individual compressor-side rotor components, a plurality of individual turbine-side rotor components, a tie-bolt, and a support wheel, wherein the plurality of individual compressor-side and turbine-side rotor components are pressed to each other using a tie-bolt and assembled to form a rotor unit, wherein for each tie-bolt provided, each rotor component has a tie-bolt opening which extends in an axial direction of the rotor, wherein the tie-bolt extends through the respective tie-bolt opening leaving a space between the tie-bolt and the respective rotor component, wherein a wheel support is arranged as a rotor component between the turbine-side rotor section and the compressor-side rotor section and radially supports the tie-bolt. ### Claim 21 (depends on 20) The thermal turbomachine as claimed in claim 20, wherein support wheel is connected to the tie-bolt in a friction-locking and/or a form-fitting manner. ### Claim 22 (depends on 20) The thermal turbomachine as claimed in claim 20, wherein a hub of the support wheel is provided with a crowned profile on a connection side. ### Claim 23 (depends on 20) The thermal turbomachine as claimed in claim 20, wherein the support wheel is shrunk onto the tie-bolt. ### Claim 24 (depends on 20) The thermal turbomachine as claimed in claim 20, wherein the support wheel is connected to two adjacently arranged rotor components using Hirth toothing. ### Claim 25 (depends on 20) The thermal turbomachine as claimed in claim 20, wherein the support wheel is provided with a plurality of openings which guides a cooling medium through. ### Claim 26 (depends on 25) The thermal turbomachine as claimed in claim 25, wherein the plurality of openings are uniformly spaced. ### Claim 27 (depends on 20) The thermal turbomachine as claimed in claim 20, wherein a center hollow shaft is arranged between the individual compressor-side rotor component arranged nearest to the turbine-side section and the individual turbine-side rotor component arranged nearest to the compressor-side section, wherein the center hollow shaft includes at least two tubular sections and wherein the support wheel is arranged between the at least two tubular sections. ### Claim 28 (depends on 20) The thermal turbomachine as claimed in claim 20, wherein the plurality of turbine-side rotor components and/or the plurality of compressor-side rotor components are formed in each case by a rotor disk. ### Claim 29 (depends on 20) The thermal turbomachine as claimed in claim 20, wherein the tie-bolt is encompassed by a cooling separation pipe which guides cooling air through, and wherein the cooling separation pipe is axially split into two sections in order to accommodate the support wheel, and wherein an end of the cooling separation pipe pointing in a direction of the support wheel is guided into a locating slot in the support wheel.