IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0669546
(2007-01-31)
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등록번호 |
US-7305830
(2007-12-11)
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발명자
/ 주소 |
|
출원인 / 주소 |
- Pratt & Whitney Canada Corp.
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
5 인용 특허 :
9 |
초록
▼
In a gas turbine engine, a fuel inlet tube comprising a body, a channel defined in the body and in fluid communication with a manifold, and a side inlet in fluid communication with the channel, the side inlet being sealingly isolated by at least two annular sealing members concentric with each other
In a gas turbine engine, a fuel inlet tube comprising a body, a channel defined in the body and in fluid communication with a manifold, and a side inlet in fluid communication with the channel, the side inlet being sealingly isolated by at least two annular sealing members concentric with each other and disposed about the tube body at longitudinally spaced part points thereon.
대표청구항
▼
The invention claimed is: 1. An inlet tube for supplying fuel to a manifold of a combustor in a gas turbine engine, the inlet tube comprising: a tube body having first and second ends; a first longitudinal channel defined in the tube body, the first longitudinal channel having an outlet in fluid co
The invention claimed is: 1. An inlet tube for supplying fuel to a manifold of a combustor in a gas turbine engine, the inlet tube comprising: a tube body having first and second ends; a first longitudinal channel defined in the tube body, the first longitudinal channel having an outlet in fluid communication with the manifold and a side feed inlet located in an outer surface of the tube body between the first and second ends, the side feed inlet being disposed within a first circumferential groove defined in the outer surface, the first circumferential groove forming a first circumferential channel when the inlet tube is received within a mating part of an engine casing; and two O-rings concentric with each other and disposed about the tube body at longitudinally spaced apart points thereon, the two O-rings being disposed on opposite sides of the side feed inlet of the first longitudinal channel to sealingly enclose the side feed inlet between the two O-rings when the tube body is received within said mating part. 2. The inlet tube as defined in claim 1, wherein each of said two O-rings is disposed in a circumferential seal groove defined in the outer surface of the tube body on opposite sides of the first circumferential groove. 3. The inlet tube as defined in claim 1, wherein a third O-ring is disposed about the tube body, the third O-ring being concentric with said two O-rings. 4. The inlet tube as defined in claim 3, wherein a second side fuel inlet is located in a second circumferential groove disposed in the outer surface of the tube body, the second circumferential groove being longitudinally spaced apart from the first circumferential groove, the second side fuel inlet being disposed between one of the two O-rings and the third O-ring, such that the first and second side fuel inlets are sealingly separated by said one of the two O-rings. 5. The inlet tube as defined in claim 4, wherein the second side fuel inlet is an inlet to a second longitudinal channel defined in the tube body, the second longitudinal channel having a second outlet in fluid communication with the manifold, the second outlet being isolated from the outlet of the first longitudinal channel. 6. The inlet tube as defined in claim 5, wherein the second longitudinal channel is side-by-side with the first longitudinal channel within the tube body. 7. An inlet tube for supplying fuel to a manifold of a combustor in a gas turbine engine, the inlet tube comprising a tube body having means for providing fluid flow communication between first and second ends of the tube body, the second end of the tube body being for engagement with the manifold, and means for sealingly isolating two side fuel inlets disposed in respective circumferential groves in the tube body proximate said first end, said circumferential grooves each forming a separate enclosed circumferential channel when the inlet tube is received within a mating part of an engine casing, said two side fuel inlets being in fluid flow communication with said means for providing fluid flow communication between the first and second ends of the tube body, said means for sealingly isolating the two side fuel inlets being concentric with each other about the tube body. 8. The inlet tube as defined in claim 7, wherein said means for sealingly isolating includes three O-rings longitudinally spaced apart along the tube body, the three O-rings including a first end O-ring, a central O-ring and a second end O-ring, a first one of the two side fuel inlets being disposed between said first end O-ring and said central O-ring, and a second one of the two side fuel inlets being disposed between said central O-ring and said second end O-ring. 9. The inlet tube as defined in claim 7, wherein the means for providing fluid flow communication includes a first longitudinal channel and a second longitudinal channel defined in the tube body, each of the first and second longitudinal channels having an outlet in fluid communication with the manifold, and each of the two side fuel inlets being disposed in fluid flow communication with a respective one of the first and second longitudinal channels. 10. A fuel manifold assembly for a combustor in a gas turbine engine, the fuel manifold assembly comprising: an internal fuel manifold having at least one fuel flow passage; and an inlet tube having a tube body extending between a first and a second end, the first end being engaged with the internal fuel manifold, first and second fuel channels extending through the tube body and each having an inlet and an outlet, the outlets being in fluid flow communication with said fuel flow passage of said internal fuel manifold, the inlets of said first and second fuel channels respectively being a first and a second side fuel inlet located in an outer surface of the tube body between said first and second ends, the first and second side fuel inlets being disposed within respective first and second circumferential grooves defined in the outer surface; and three O-rings concentric with each other and disposed about the tube body, the O-rings being longitudinally spaced apart to sealingly isolate the first and second side fuel inlets which are each respectively located between two of the three O-rings.
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