# US 2010/0164181 A1 · Sealing Ring for Turbo Engines

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- Number: US 2010/0164181 A1
- Document ID: US20100164181A1
- Status: Published application
- Kind: A1
- Application number: 12/594,494
- Filed: 2008-04-01
- Published: 2010-07-01
- Earliest claimed: 2007-04-03
- Assignees: Siemens Aktiengesellschaft
- Inventors: Stefan Brück; Eduard Jenikejew; Matthias Neef; Norbert Sürken
- Web page: https://patentgrep.com/patent/US20100164181A1

## CPC

- F01D 11/16: by self-adjusting means (F01D11/12 takes precedence)
- F05D 2240/11: Shroud seal segments
- 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 sealing ring for turbo engines is provided. The sealing ring includes individual sealing segments, between which springs are mounted. Locking elements are provided on the parting joint of the turbo engine to retain the sealing segments. In order to ensure that the sealing elements can be securely closed on the parting joint, the sealing segments are positively interconnected on the parting joint.

## Claims

### Claim at position 1

-2. (canceled)

### Claim 3

A sealing ring for turbomachines, comprising:
a plurality of individual sealing segments; and
a plurality of springs,
wherein the plurality of springs are installed between the plurality of individual sealing segments, and
wherein a plurality of locking elements are provided at a parting joint of the turbomachine for retaining the plurality of sealing segments, and
wherein the plurality of individual sealing segments are interconnected in a form-fitting manner at the parting joint.

### Claim 4 (depends on 3)

The sealing ring as claimed in claim 3, wherein one end of an individual sealing segment at the parting joint has a projecting cylindrical pin which extends in an axial direction of the turbomachine and fits into a corresponding recess at an end of an adjacent sealing segment.

### Claim 5 (depends on 3)

The sealing ring as claimed in claim 3, wherein a difference between a starting pressure when the plurality of individual sealing segments move and a closing pressure when the sealing ring is completely closed is reduced.

### Claim 6 (depends on 3)

The sealing ring as claimed in claim 3, wherein each sealing segment carries along the adjacent sealing segment.