IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0466554
(1999-12-17)
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발명자
/ 주소 |
- Rainous Edward A.
- Barber Daniel J.
- Vickers Edward C.
- Maue Gregory P.
- Cody William E.
- Yee Sharon L.
- McMahan Kevin W.
|
출원인 / 주소 |
|
대리인 / 주소 |
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인용정보 |
피인용 횟수 :
16 인용 특허 :
5 |
초록
▼
A retainer which, in an exemplary embodiment of the invention, is used in a gas turbine engine inter-stage seal assembly to retain an annular seal ring flange of a seal ring against an annular platform flange extending radially inwardly from an inner platform of an annular nozzle stage having nozzle
A retainer which, in an exemplary embodiment of the invention, is used in a gas turbine engine inter-stage seal assembly to retain an annular seal ring flange of a seal ring against an annular platform flange extending radially inwardly from an inner platform of an annular nozzle stage having nozzle vanes. The retainer includes a body having a central portion through which a bore is formed around a bore axis and a central tab extends radially outwardly from the central portion with respect to the bore axis. First and second arms, respectively, extend in opposite respective first and second tangential directions, with respect to the bore axis, away from the central portion and each other. Axial spacers extend aftwardly from first and second free ends of the first and second arms, respectively and anti-rotation feet with rounded ends depend from the first and second free ends in an opposite direction from which the central tab extends. A pedestal assembly extends aft from the central portion and is located aft of the central tab. In the exemplary embodiment, the pedestal assembly has a semi-annular cylindrical inner surface circumscribed around the bore axis and a semi-annular cylindrical outer surface wherein the semi-annular cylindrical outer surface extends between generally parallel spaced apart radially inner and outer flats, respectively with respect to the bore axis, and the radially inner flats are coplanar and the radially outer flats are coplanar. Chamfers are formed along the radially inner and outer flats, respectively. The retainer is an integrally cast unit including the body, the central portion, the central tab, the first and second arms, the axial spacers, the anti-rotation feet, and the pedestal assembly.
대표청구항
▼
[ What is claimed is:] [1.]1. A retainer comprising:a body having a central portion through which a bore is formed around a bore axis,a central tab extending radially outwardly from said central portion with respect to said bore axis,first and second arms, respectively, extend in opposite respective
[ What is claimed is:] [1.]1. A retainer comprising:a body having a central portion through which a bore is formed around a bore axis,a central tab extending radially outwardly from said central portion with respect to said bore axis,first and second arms, respectively, extend in opposite respective first and second tangential directions, with respect to said bore axis, away from said central portion and each other,axial spacers extending aftwardly from first and second free ends of said first and second arms, respectively,anti-rotation feet depending from said first and second free ends in an opposite direction from which said central tab extends,a pedestal assembly extending aft from said central portion and is located aft of said central tab,said pedestal assembly having at least a semi-annular cylindrical inner surface circumscribed around said bore axis and a semi-annular cylindrical outer surface,said semi-annular cylindrical outer surface extending between generally parallel spaced apart radially inner and outer flats, respectively with respect to said bore axis, andsaid radially inner flats being coplanar and said radially outer flats being coplanar, andchamfers along said radially inner and outer flats, respectively.
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