# US 9,039,358 B2 · Replaceable blade outer air seal design

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- Number: US 9,039,358 B2
- Document ID: US9039358B2
- Status: Granted
- Kind: B2
- Application number: 11/648,932
- Filed: 2007-01-03
- Published: 2008-07-03
- Granted: 2015-05-26
- Earliest claimed: 2007-01-03
- Assignees: United Technologies Corporation
- Applicants: Susan M. Tholen; Paul M. Lutjen
- Inventors: Susan M. Tholen; Paul M. Lutjen
- Web page: https://patentgrep.com/patent/US9039358B2

## CPC

- F01D 11/08: for sealing space between rotor blade tips and stator (specially-shaped blade tips therefor F01D5/20)
- F01D 11/12: using a rubstrip, e.g. erodible. deformable or resiliently-biased part
- F01D 11/16: by self-adjusting means (F01D11/12 takes precedence)
- F05D 2260/30: Retaining components in desired mutual position
- 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 blade outer air seal system includes a body that extends between two circumferential sides, a leading edge and a trailing edge, and a radially inner side and a radially outer side. An attachment section associated with the body and includes at least one engagement surface that is transverse to the radially outer side.

## Claims

### Claim 1

A blade outer air seal system comprising:
a blade outer air seal having a body extending between two circumferential sides, a leading edge and a trailing edge, and a radially inner side and a radially outer side,
an attachment section associated with the body, the attachment section having at least one engagement surface that is transverse to the radially outer side; and
a support having at least one section that receives the attachment section to secure the support and the blade outer air seal together, the support including a stop that abuts one of the circumferential sides of the attachment section to restrict movement of the blade outer air seal in a circumferential direction, wherein the attachment section includes a first end that is flush with one circumferential side of the body and a second end that is spaced apart from the other circumferential side of the body, the second end abutting the stop of the support.