Method and apparatus for isolating inactive fuel passages
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F02C-007/22
F23D-014/02
F23D-011/38
F23D-017/00
F23R-003/30
F23R-003/36
B05B-007/02
출원번호
US-0688595
(2015-04-16)
등록번호
US-9926847
(2018-03-27)
발명자
/ 주소
Innes, Matthew C.
Whenham, Ian
Courbariaux, Yann
Bohan, Margaret Kathleen
출원인 / 주소
Rolls-Royce plc
대리인 / 주소
Barnes & Thornburg LLP
인용정보
피인용 횟수 :
0인용 특허 :
21
초록▼
A system includes a turbine engine having a fuel injector. The fuel injector includes fluid ducts, each having a fuel inlet coupled to a distinct fuel source. The system includes a compressed air source that provides compressed air simultaneously to the fluid ducts, and a convergence point where com
A system includes a turbine engine having a fuel injector. The fuel injector includes fluid ducts, each having a fuel inlet coupled to a distinct fuel source. The system includes a compressed air source that provides compressed air simultaneously to the fluid ducts, and a convergence point where combined fuel and air streams from the ducts are mixed. The fuel inlets are in a parallel flow arrangement such that no fuel from one fuel injector is present at another fuel injector.
대표청구항▼
1. A fluid injector, comprising: a first fluid duct having a first active fluid inlet and a second fluid duct having a second active fluid inlet and a third fluid duct having a third active fluid inlet;a carrier fluid source structured to flow a carrier fluid simultaneously in each of the first flui
1. A fluid injector, comprising: a first fluid duct having a first active fluid inlet and a second fluid duct having a second active fluid inlet and a third fluid duct having a third active fluid inlet;a carrier fluid source structured to flow a carrier fluid simultaneously in each of the first fluid duct, the second fluid duct, and the third fluid duct;a first convergence point that receives a first combined stream, a second combined stream, and a third combined stream, the first combined stream comprising the carrier fluid mixed with a first active fluid entering the first fluid duct through the first active duct inlet, the second combined stream comprising the carrier fluid mixed with a second active fluid entering the second fluid duct through the second active duct inlet, and the third combined stream comprising the carrier fluid mixed with a third active fluid entering the third fluid duct through the third active duct inlet;a second convergence point that receives the second combined stream and the third combined stream, the second convergence point being located upstream of the first convergence point; andwherein the first active fluid inlet and the second active fluid inlet are structured in a parallel flow arrangement;wherein the parallel flow arrangement comprises the first active fluid inlet and the second active fluid inlet positioned at a flow location that is predetermined additional distance upstream of a fluid mixing point between the first combined stream and second combined stream, the predetermined additional distance selected to provide that any localized flow reversal present in the first combined stream, the second combined stream, or the third combined stream will not suffice to provide mixed fluid at the first active fluid inlet and the second active fluid inlet,wherein the first fluid duct has a first perimeter wall and the second fluid duct has a second perimeter wall;wherein the first active fluid inlet is coupled to the first perimeter wall and structured to open into the first perimeter wall at an inclined angle relative to the first perimeter wall to deliver an active fluid through the first perimeter wall and into the first fluid duct and is positioned upstream from the downstream-most end of the first perimeter wall of the first fluid duct; andwherein the second active fluid inlet is coupled to the second perimeter wall and structured to open into the second perimeter wall at an inclined angle relative to the second perimeter wall to deliver an active fluid through the second perimeter wall and into the second fluid duct and is positioned upstream from the downstream-most end of the second perimeter wall of the second fluid duct. 2. The fluid injector of claim 1, wherein the first active fluid comprises a first fuel and the second active fluid comprises a second fuel. 3. The fluid injector of claim 1, wherein each active fluid of the first active fluid, the second active fluid, and the third active fluid comprises a fluid selected from fluids consisting of: fuel, paint, primer, fluid chemical, solvent, and water. 4. The fluid injector of claim 1, wherein the localized flow reversal comprises at least one flow selected from flows consisting of: Coanda effect flow, fluid duct pressure differential flow, and idle active source reverse flow. 5. The fluid injector of claim 1, wherein the carrier fluid comprises a fluid selected from fluids consisting of: air, nitrogen, argon, an inert gas, water, and a solvent. 6. A fuel injector, comprising: a first fluid duct having a first fuel inlet, a second fluid duct having a second fuel inlet, and a third fluid duct having a third fuel inlet;a compressed air source structured to flow compressed air simultaneously in each of the first fluid duct, second fluid duct, and third fluid duct;a first convergence point receiving a first combined stream, a second combined stream, and a third combined stream, the first combined stream comprising the compressed air mixed with a first fuel entering the first fluid duct through the first fuel inlet, the second combined stream comprising the compressed air mixed with a second fuel entering the second fluid duct through the second fuel inlet, and the third combined stream comprising the compressed air mixed with a third fuel entering the third fluid duct through the third fuel inlet;a second convergence point that receives the second combined stream and the third combined stream, the second convergence point being located upstream of the first convergence point; andwherein the first fuel inlet, the second fuel inlet, and the third fuel inlet are structured in a parallel flow arrangement;wherein the first fluid duct has a first perimeter wall and the second fluid duct has a second perimeter wall;wherein the first fuel inlet is coupled to the first perimeter wall and structured to open into the first perimeter wall at an inclined angle relative to the first perimeter wall to deliver the first fuel through the first perimeter wall and into the first fluid duct and is positioned upstream from the downstream-most end of the first perimeter wall of the first fluid duct; andwherein the second fuel inlet is coupled to the second perimeter wall and structured to open into the second perimeter wall at an inclined angle relative to the second perimeter wall to deliver the second fuel through the second perimeter wall and into the second fluid duct and is positioned upstream from the downstream-most end of the second perimeter wall of the second fluid duct. 7. The fuel injector of claim 6, wherein the parallel flow arrangement comprises the first fuel inlet and the second fuel inlet positioned at a flow location upstream of any fluid mixing point between the first combined stream and the second combined stream. 8. The fuel injector of claim 7, wherein the parallel flow arrangement comprises the first fuel inlet and the second fuel inlet positioned at a flow location that is a predetermined additional distance upstream of any fluid mixing point between the first combined stream and the second combined stream and the predetermined additional distance is selected to provide that any localized flow reversal present in the first combined stream, the second combined stream, or the third combined stream will not suffice to provide mixed fluid at the first fuel inlet and the second fuel inlet. 9. The fuel injector of claim 8, wherein the localized flow reversal comprises at least one flow selected from flows consisting of: Coanda effect flow, fluid duct pressure differential flow, and idle fuel source reverse flow. 10. A system, comprising: a turbine engine having a fuel injector, comprising: a plurality of fluid ducts including at least three fluid ducts, each of the plurality of fluid ducts coupled to an associated fuel inlet of a plurality of fuel inlets wherein each of the associated fuel inlet is coupled to a distinct fuel source;a compressed air source that provides compressed air simultaneously in each of the plurality of fluid ducts;a first convergence point receiving a plurality of combined streams from each of the plurality of fluid ducts, each of the combined stream of the plurality of combined streams comprising compressed air and a fuel from the distinct fuel source entering the plurality of fluid ducts through the associated fuel inlet;a second convergence point receiving the combined streams of two of the at least three fluid ducts, the second convergence point being located upstream of the first convergence point; andwherein a first fuel inlet of the plurality of fuel inlets associated with a first fluid duct of the at least three fluid ducts and a second fuel inlet of the plurality of fuel inlets associated with a second fluid duct of the at least three ducts are structured in a parallel flow arrangement;wherein the first fluid duct has a first perimeter wall and the second fluid duct has a second perimeter wall;wherein the first fuel inlet is coupled to the first perimeter wall and structured to open into the first perimeter wall at an inclined angle relative to the first perimeter wall to deliver fuel from the distinct fuel source entering the first fluid duct through the first fuel inlet and is positioned upstream from the downstream-most end of the first perimeter wall of the first fluid duct; andwherein the second fuel inlet is coupled to the second perimeter wall and structured to open into the second perimeter wall at an inclined angle relative to the second perimeter wall to deliver fuel from the distinct fuel source entering the second fluid duct through the second fuel inlet and is positioned upstream from the downstream-most end of the second perimeter wall of the second fluid duct. 11. The system of claim 10, wherein the parallel flow arrangement comprises each of the first fuel inlet and the second fuel inlet positioned at a flow location that is a predetermined additional distance upstream of the second convergence point and the predetermined additional distance is selected to provide that any localized flow reversal present in the plurality of combined streams will not suffice to provide mixed fluid at the first fuel inlet and the second fuel inlet.
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이 특허에 인용된 특허 (21)
Faucher Joseph E. (East Hartford CT) Wright Richard R. (Willimantic CT) Pane ; Jr. Francis C. (South Windsor CT) Kwoka David (Windsor CT), Anti-coke fuel nozzle.
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