# US 2019/0170017 A1 · Supporting device for a casing of a turbomachine, casing for a turbomachine, and turbomachine

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- Number: US 2019/0170017 A1
- Document ID: US20190170017A1
- Status: Published application
- Kind: A1
- Application number: 16/199,363
- Filed: 2018-11-26
- Published: 2019-06-06
- Earliest claimed: 2017-12-01
- Applicants: MTU Aero Engines AG
- Inventors: Martin Metscher; Jan Haegert
- Web page: https://patentgrep.com/patent/US20190170017A1

## CPC

- F01D 25/28: Supporting or mounting arrangements, e.g. for turbine casing
- F01D 9/041: {using blades (F01D5/148 takes precedence)}
- F01D 25/24: Casings (modified for heating or cooling F01D25/14); Casing parts, e.g. diaphragms, casing fastenings (casings for rotary machines or engines in general F16M {; special arrangements in stators dealing with breaking-off of part of rotor F01D21/045})
- F02C 7/20: Mounting or supporting of plant; Accommodating heat expansion or creep
- F05D 2220/32: in gas turbines
- F05D 2230/60: Assembly methods
- F05D 2260/941: particularly aimed at mechanical or thermal stress reduction
- F01D: NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES (machines or engines for liquids F03; non-positive displacement pumps F04D)
- F02C: GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS (construction of turbines F01D; jet-propulsion plants F02K; construction of compressors or fans F04; generating combustion products of high pressure or high velocity F23R; using gas turbines in compression refrigeration plants F25B11/00)
- F05D: INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS

## Abstract

A supporting device (10) for a casing (12) of a turbomachine (100), for bracing against forces acting on the casing (12) that occur during operation of the turbomachine (100), having at least one hub element (40), and at least one supporting element (20) for holding the hub element (40) on the casing (12). The supporting device (10) includes at least one rotary joint (30) which is used to rotatably connect the hub element (40) to the supporting element (20). Other aspects of the present invention relate to a casing (12) for a turbomachine (100), and to a turbomachine (100).

## Claims

### Claim at position 1

1-11. (canceled)

### Claim 12

A supporting device for a casing of a turbomachine, for bracing against forces acting on the casing that occur during operation of the turbomachine, the supporting device comprising:
at least one hub element;
at least one support element for holding the hub element on the casing; and
at least one rotary joint rotatably connecting the hub element to the supporting element.

### Claim 13 (depends on 12)

The supporting device as recited in claim 12 wherein the at least one rotary joint is an articulated joint.

### Claim 14 (depends on 12)

The supporting device as recited in claim 12 wherein the at least one rotary joint is in the form of a spherical joint.

### Claim 15 (depends on 12)

The supporting device as recited in claim 12 wherein the at least one rotary joint has at least one joint element rotatably received in a recess of the at least one support element or of the at least one hub element.

### Claim 16 (depends on 15)

The supporting device as recited in claim 15 wherein the at least one joint element is received form-fittingly in the recess of the at least one support element or of the at least one hub element.

### Claim 17 (depends on 12)

The supporting device as recited in claim 12 wherein the at least one support element is a strut.

### Claim 18 (depends on 12)

The supporting device as recited in claim 12 wherein the at least one hub element has a passageway for receiving a shaft element.

### Claim 19 (depends on 12)

The supporting device as recited in claim 12 wherein the at least one hub element has a passageway for receiving a rotor shaft of the turbomachine.

### Claim 20 (depends on 12)

A casing for a turbomachine comprising at least one supporting device as recited in claim 12.

### Claim 21 (depends on 20)

The casing as recited in claim 20 wherein the casing is a turbine center frame.

### Claim 22 (depends on 12)

A turbomachine comprising at least one supporting device as recited in claim 12.

### Claim 23 (depends on 22)

The turbomachine as recited in claim 22 wherein the turbomachine is a gas turbine.