IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0529836
(2006-09-29)
|
등록번호 |
US-7617685
(2009-11-27)
|
발명자
/ 주소 |
- Norman, Richard F.
- Osga, Kyle J.
|
출원인 / 주소 |
- United Technologies Corporation
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
6 인용 특허 :
5 |
초록
▼
A quick change connection is provided for attaching a bracket and liner subassembly to convergent flaps and seals in an adjustable nozzle for a gas turbine engine. A threaded attachment member has a t-shaped head that is secured to prevent rotation by a washer. The washer is held in place in the con
A quick change connection is provided for attaching a bracket and liner subassembly to convergent flaps and seals in an adjustable nozzle for a gas turbine engine. A threaded attachment member has a t-shaped head that is secured to prevent rotation by a washer. The washer is held in place in the convergent flaps and seals by spring fingers in a slot. By utilizing the washer, a simple threaded connection can be utilized even though the threaded attachment member must extend to a radially outer surface of the convergent flaps and seals, while a nut is threaded onto the threaded attachment member radially inwardly of the convergent flaps and seals. The washer prevents rotation of a head of the threaded attachment member, and thus allows the nut to be easily tightened to secure the components. This also facilitates maintenance as the threaded nut can be easily removed from the threaded attachment for replacement.
대표청구항
▼
What is claimed is: 1. A nozzle assembly for a gas turbine engine comprising: a plurality of divergent flaps that are movable to adjust a cross-sectional area of an outlet of a nozzle; a plurality of convergent flaps and seals positioned upstream from said divergent flaps, said convergent flaps and
What is claimed is: 1. A nozzle assembly for a gas turbine engine comprising: a plurality of divergent flaps that are movable to adjust a cross-sectional area of an outlet of a nozzle; a plurality of convergent flaps and seals positioned upstream from said divergent flaps, said convergent flaps and seals being positioned to block flow of products of combustion from a location radially inwardly of said plurality of convergent flaps and seals to an internal housing radially outwardly of said convergent flaps and seals; said convergent flaps and seals being connected to a liner facing inwardly and toward the products of combustion, said liner being attached to said convergent flaps and seals by a bracket, the attachment of the bracket to each of the flaps and seals provided by a threaded attachment member, said threaded attachment member having a head positioned on one radial side of said convergent flaps and seals, and a threaded portion extending radially to a second side of said convergent flaps and seals, and a nut being secured on said threaded attachment member on an opposed side of said bracket from said head, and there being structure for preventing rotation of said threaded attachment member as said nut is tightened onto said threaded attachment member; and wherein said threaded attachment member is positioned radially outwardly of said convergent flaps and seals, and said threaded portion extending radially inwardly of said threaded flaps and seals. 2. The nozzle assembly as set forth in claim 1, wherein said structure for preventing rotation of said threaded attachment member includes a washer extending through slots in both said bracket and said convergent flaps and seals, and said washer preventing rotation of said threaded attachment member. 3. The nozzle assembly as set forth in claim 2, wherein said washer has a pair of legs that extend through said slots in said bracket and said convergent flaps and seals. 4. The nozzle assembly as set forth in claim 3, wherein said slots in said bracket and said convergent flaps and seals has spring fingers that hold said legs to retain said washer within said slots. 5. The nozzle assembly as set forth in claim 3, wherein said threaded attachment member has a rectangular shaped head, with said head having an elongate dimension and a shorter dimension, said shorter dimension fitting between said legs, and said legs retaining said head to prevent rotation of said head. 6. The nozzle assembly as set forth in claim 3, wherein said washer has a portion connected to said legs, and said portion effectively closing off said slots to prevent leakage through said slots. 7. A gas turbine engine comprising: a fan section; a compressor section; a combustion section; a turbine section; a nozzle section, said nozzle including a plurality of divergent flaps that are movable to adjust a cross-sectional area of an outlet of a nozzle; a plurality of convergent flaps and seals positioned upstream from said divergent flaps, said convergent flaps and seals being positioned to block flow of products of combustion from a location radially inwardly of said plurality of convergent flaps and seals to an internal housing radially outwardly of said convergent flaps and seals, said convergent flaps and seals being connected to a liner facing inwardly and toward products of combustion, said liner being attached to said convergent flaps and seals by a bracket, is spaced away from said liner intermediate said spaced contact areas, the attachment of the bracket to each of the flaps and seals provided by a threaded attachment member, said threaded attachment member having a head positioned radially outwardly of said convergent flaps and seals, and a threaded portion extending radially through said convergent flaps and seals, and a nut being secured on said threaded attachment member on an opposed side of said bracket from said head, and structure preventing rotation of said threaded attachment; wherein said threaded attachment member is positioned radially outwardly of said convergent flaps and seals, and said threaded portion extending radially inwardly of said threaded flaps and seals. 8. The nozzle assembly as set forth in claim 7, wherein a washer extends through a slot in both said bracket and said flaps and seals, and said washer preventing rotation of said threaded attachment member. 9. The nozzle assembly as set forth in claim 8, wherein said washer has a pair of legs that extend through said slots in said bracket and said flaps and seals. 10. The nozzle assembly as set forth in claim 9, wherein said slot in at least one of said bracket and said convergent flaps and seals has spring fingers that hold said legs to retain said washer within said slots. 11. The nozzle assembly as set forth in claim 9, wherein said threaded attachment member has a rectangular shaped head, with said head having an elongate dimension and a shorter dimension, said shorter dimension fitting between said legs, and said legs retaining said head to prevent rotation of said head.
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