# US 10,309,538 B2 · Device and method for attaching seal elements

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- Number: US 10,309,538 B2
- Document ID: US10309538B2
- Status: Granted
- Kind: B2
- Application number: 15/007,589
- Filed: 2016-01-27
- Published: 2016-07-28
- Granted: 2019-06-04
- Earliest claimed: 2015-01-28
- Assignees: MTU Aero Engines AG
- Applicants: MTU Aero Engines AG
- Inventors: Julian Weber
- Web page: https://patentgrep.com/patent/US10309538B2

## CPC

- F16J 15/32: with elastic sealings, e.g. O-rings
- F01D 11/001: {for sealing space between stator blade and rotor}
- F01D 11/02: by non-contact sealings, e.g. of labyrinth type (for sealing space between rotor blade tips and stator F01D11/08)
- F02C 7/28: Arrangement of seals
- F16J 15/3268: Mounting of sealing rings
- F16J 15/3288: Filamentary structures, e.g. brush seals
- F16J: PISTONS {(specially adapted for dampers F16F9/32)}; CYLINDERS; SEALINGS
- 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)

## Abstract

A device for attaching seal elements in a recess, particularly in an installation groove designed in a flow machine, is disclosed. At least one fixing body is arranged between a seal carrier element and a clamping body assigned to the seal carrier element, where the fixing body is integrally connected to the seal carrier element and the clamping body by bar-like connections that can be detached when subjected to a force. In addition, at least one plastic deformable structure is designed on the fixing body. An attachment method as well as a production method for the device is also disclosed.

## Claims

### Claim 1

A device for attaching a seal element in a recess of a machine, comprising:
a seal carrier element;
a clamping body; and
a fixing body that is disposed between the seal carrier element and the clamping body,
wherein the fixing body is connected integrally to the seal carrier element and the clamping body by bar-like connections that are detachable when subjected to a force; and
wherein when disengaging the bar-like connections between the fixing body, the seal carrier element, and the clamping body, a force-fit results between the fixing body, the seal carrier element, the clamping body, and side walls of the recess of the machine.

### Claim 2 (depends on 1)

The device according to claim 1,
wherein the fixing body comprises a plastic deformable structure formed by a projection.

### Claim 3 (depends on 2)

The device according to claim 2, wherein the plastic deformable structure is insertable in a recess in the seal carrier element and/or in the clamping body in a form-fit.

### Claim 4 (depends on 3)

The device according to claim 3, wherein the recess in the seal carrier element and/or in the clamping body corresponds at least partially to a shape of the projection.

### Claim 5 (depends on 3)

The device according to claim 3, wherein a shape of the plastic deformable structure is designed for a predetermined expansion and direction of the form-fit.

### Claim 6 (depends on 2)

The device according to claim 2,
wherein the plastic deformable structure is formed in one piece with the fixing body.

### Claim 7 (depends on 2)

The device according to claim 2,
wherein a form-fit results between the plastic deformable structure and the seal carrier element and/or the clamping body when the device is disposed in the recess.

### Claim 8 (depends on 1)

The device according to claim 1, wherein the bar-like connections form an angle pointing in a direction of the recess.

### Claim 9 (depends on 1)

The device according to claim 1, wherein a space defined between the seal carrier element and the clamping body, in which the fixing body is disposed, at least partially tapers toward the recess.

### Claim 10 (depends on 1)

The device according to claim 1, wherein the fixing body tapers toward the recess.

### Claim 11 (depends on 1)

The device according to claim 1, wherein the fixing body has a wedge shape or a frustoconical shape.