IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0624733
(2007-01-19)
|
등록번호 |
US-7780151
(2010-09-13)
|
우선권정보 |
CH-1408/04(2004-08-27) |
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
4 인용 특허 :
7 |
초록
▼
A mixer assembly and a method for forming a fuel-air mixture is combinable with a burner system of a heat engine, especially a gas turbine plant. A flow-through component (1) provides a flow deflecting region (8) which provides at least two air inlet openings (2, 3, 4) to which is each connected a f
A mixer assembly and a method for forming a fuel-air mixture is combinable with a burner system of a heat engine, especially a gas turbine plant. A flow-through component (1) provides a flow deflecting region (8) which provides at least two air inlet openings (2, 3, 4) to which is each connected a flow passage section (5, 6, 7), which flow deflecting region deflects the airflow which enters the respective flow passage section (5, 6, 7) by a deflection angle β≠0°, and each has an outlet opening, and that a mixing passage section (11, 12, 13) is connected to each of the outlet openings of the flow passage sections (5, 6, 7), in each of which mixing passage section is provided at least one flow vortex generating structure (14), and which each provides an outlet opening; or that a fine mixing region (15) is connected to the outlet openings of the flow passage sections (5, 6, 7), which fine mixing region has a multiplicity of individual flow passages (23) which, in each case, have a passage cross section which is dimensioned smaller than the passage cross section of the flow passage sections (5, 6, 7) in the region of their outlet openings; or that a mixing passage section (11, 12, 13) is connected to the outlet openings of the each of flow passage sections (5, 6, 7), in each of which mixing passage section at least one flow vortex generating structure (14) is provided.
대표청구항
▼
What is claimed is: 1. A mixer assembly for forming a fuel-air mixture, which is useful with a burner system of a heat engine, comprising: a flow-through component including at least one air inlet opening, at least one flow outlet opening, a flow passage which connects the air inlet opening to the
What is claimed is: 1. A mixer assembly for forming a fuel-air mixture, which is useful with a burner system of a heat engine, comprising: a flow-through component including at least one air inlet opening, at least one flow outlet opening, a flow passage which connects the air inlet opening to the flow outlet opening, and at least one fuel feed located in the region of the at least one air inlet opening, along the flow passage, or both; wherein the flow-through component further comprises a flow deflecting region which includes at least two of said air inlet openings and a flow passage section for and in fluid communication with each air inlet opening, which flow deflecting region is configured and arranged to deflect an air flow which enters the respective flow passage section by a deflection angle β≠0°, the flow passage sections including an outlet opening for each flow passage section, wherein the flow passage sections are configured and arranged for isokinetic flow-through ratios, wherein β is the angle between an inflow direction of air into the at least two air inlet openings and an outflow direction of the outlet opening of the flow passage section; and (a) a mixing passage section connected to each of the outlet openings of the flow passage sections, at least one flow vortex generating structure positioned in each mixing passage section, and each mixing passage section including an outlet opening; or (b) a fine mixing region connected to the outlet openings of the flow passage sections, which fine mixing region includes a multiplicity of individual flow passages which each have a passage cross section dimensioned smaller than the passage cross section of the flow passage sections in the region of the outlet openings of the flow passage sections; or (c) a mixing passage section connected to each of the outlet openings of the flow passage sections, at least one flow vortex generating structure positioned in each mixing passage section, each mixing passage section including an outlet opening, a fine mixing region having a multiplicity of individual flow passages connected to each mixing passage section outlet opening, the individual flow passages each having a passage cross section dimensioned smaller than the passage cross section of the mixing passage sections in the region of their outlet openings. 2. The mixer assembly as claimed in claim 1, wherein the outlet openings of the flow passage sections have equally sized opening areas. 3. The mixer assembly as claimed in claim 1, wherein 90°≦β≦180 °. 4. The mixer assembly as claimed in claim 1, further comprising: at least one fuel feed in the region of each of the air inlet openings, configured and arranged to deliver fuel feed fuel perpendicularly to the air flow when entering through the air inlet opening. 5. The mixer assembly as claimed in claim 1, wherein the at least one fuel feed comprises fuel nozzles configured and arranged to deliver liquid fuel or gaseous fuel. 6. The mixer assembly as claimed in claim 1, wherein the outlet openings of the flow passage sections lie in a common plane, and the flows when emerging from the flow passage sections are oriented parallel to each other. 7. The mixer assembly as claimed in claim 1, wherein the flow-through component comprises a hollow cylinder including said at least two air inlet openings, said at least two air inlet openings being radially oriented and extending in the circumferential direction, which at least two air inlet openings are axially separated from each other, and to which at least two air inlet openings are connected to the flow passage sections extending into the inside of the flow-through component, and further comprising: passage walls bounding each of the flow passage sections, which passage wall have a curved shape after the air inlet openings so that the outlet openings of the flow passage sections are each oriented axially. 8. The mixer assembly as claimed in claim 7, wherein at least two flow passage sections are arranged coaxially to each other and each have an annular flow passage cross section at least in the region of the axially extending flow passage sections. 9. The mixer assembly as claimed in claim 7, further comprising: at least one bypass passage axially and concentrically, eccentrically, or both, extending through the flow-through component. 10. The mixer assembly as claimed in claim 7, further comprising: low profile struts positioned axially along the two air inlet openings, the low profile struts arranged in an equally distributed manner in the circumferential direction of the flow-through component, the low profile struts including fuel nozzles. 11. The mixer assembly as claimed in claim 10, wherein the low profile strut fuel nozzles are configured and arranged so that the fuel delivery is perpendicular to the flow direction of the air flow when entering the two air inlet openings. 12. The mixer assembly as claimed in claim 1, comprising (a) or (c), and wherein the mixing passage sections are connected flush to the flow passage sections. 13. The mixer assembly as claimed in claim 1, comprising (a) or (c), and wherein each flow vortex generating structure has a geometry which widens in wedge-form in the flow direction, with a wedge length l, a wedge height h, and a wedge angle γ, with 1.4≦l/h ≦3.5 and 10°≦γ≦30°. 14. The mixer assembly as claimed in claim 1, comprising (b), and wherein the multiplicity of individual flow passages in the fine mixing region are arranged groupwise in annular sections which are each arranged coaxially to each other and each radially spaced apart in relation to each other. 15. The mixer assembly as claimed in claim 14, wherein the flow passages per annular section uniformly include an angle +δ or −δ with the axial direction (A), with 0°<δ≦45 °. 16. The mixer assembly as claimed in claim 15, wherein the flow passages of one annular section include an angle +δ with the axial direction (A), and the flow passages of directly radially adjacent annular sections include an angle −δ with the axial direction (A). 17. The mixer assembly as claimed in claim 14, wherein the flow passages each have a flow diameter of 0.5−5 mm. 18. The mixer assembly as claimed in claim 1, comprising (b), and wherein the multiplicity of individual flow passages in the fine mixing region is located downstream of the mixing passage sections. 19. The mixer assembly as claimed in claim 1, further comprising: passage walls bounding the flow passage sections, the mixing passage sections, and the flow passages provided in the fine mixing region, along which passage walls there are no flow separating contours or passage curvatures by which pressure zones, backflow zones, or dead water zones are induced.
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