Apparatus for controlling the flow separation line of rocket nozzles
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0980456
(2001-11-15)
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우선권정보 |
SE-0000896 (2000-03-17) |
국제출원번호 |
PCT/SE01/00554
(2001-03-16)
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국제공개번호 |
WO01/69069
(2001-09-20)
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발명자
/ 주소 |
|
출원인 / 주소 |
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대리인 / 주소 |
Dickstein Shapiro Morin & Oshinsky, LLP
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인용정보 |
피인용 횟수 :
0 인용 특허 :
4 |
초록
▼
The invention refers to an apparatus for controlling the flow separation line of rocket nozzles for reducing side loads. For obtaining this control it is suggested according to the invention that the inside of the nozzle (1) has circumferentially regular spaced areas (2) with increased surface rough
The invention refers to an apparatus for controlling the flow separation line of rocket nozzles for reducing side loads. For obtaining this control it is suggested according to the invention that the inside of the nozzle (1) has circumferentially regular spaced areas (2) with increased surface roughness compared with the rest of the inside of the nozzle.
대표청구항
▼
1. A rocket nozzle having an interior wall provided with circumferentially regularly spaced areas of increased surface roughness relative to non-roughened areas of the interior wall of the nozzle. 2. The rocket nozzle of claim 1, wherein the nozzle has an inlet and an outlet, and the surface roughne
1. A rocket nozzle having an interior wall provided with circumferentially regularly spaced areas of increased surface roughness relative to non-roughened areas of the interior wall of the nozzle. 2. The rocket nozzle of claim 1, wherein the nozzle has an inlet and an outlet, and the surface roughness provided on the interior wall of the nozzle increases progressively from the inlet to the outlet of the nozzle, said surface roughness at the outlet of the nozzle exceeding 1 mm. 3. The rocket nozzle of claim 2, wherein: said nozzle has an inlet, an outlet and a length (L), the areas with increased surface roughness extend over at least a part of the length (L) and have a circumferential width (W1), the non-roughened areas have a circumferential width (W2), and the circumferential width (W1) of the areas with increased surface roughness at the outlet of the nozzle is equal to the circumferential width (W2) of adjacent non-roughened areas. 4. The rocket nozzle of claim 2, wherein: said nozzle has an inlet, an outlet and a length (L), the areas with increased surface roughness extend over at least a part of the length (L) and have a circumferential width (W1), the non-roughened areas have a circumferential width (W2), and the circumferential width (W1) of the areas with increased surface roughness at the outlet of the nozzle is less than the circumferential width (W2) of adjacent non-roughened areas. 5. The rocket nozzle of claim 2, wherein: said nozzle has an inlet, an outlet and a length (L), the areas with increased surface roughness extend over at least a part of the length (L) and have a circumferential width (W1), the non-roughened areas have a circumferential width (W2), and the circumferential width (W1) of the areas with increased surface roughness at the outlet of the nozzle is greater than the circumferential width (W2) of adjacent non-roughened areas. 6. The rocket nozzle of claim 2, wherein said surface roughness increases from about 0.5 mm at said inlet to about 2.0 mm at said outlet. 7. The rocket nozzle of claim 1, wherein: said nozzle has an inlet, an outlet and a length (L), the areas with increased surface roughness extend over at least a part of the length (L) of the nozzle and have a circumferential width (W1), the non-roughened areas have a circumferential width (W2), and the circumferential width (W1) of the areas with increased surface roughness at the outlet of the nozzle is less than the circumferential width (W2) of adjacent non-roughened areas. 8. The rocket nozzle of claim 1, wherein: said nozzle has an inlet, an outlet and a length (L), the areas with increased surface roughness extend over at least a part of the length (L) of the nozzle and have a circumferential width (W1), the non-roughened areas have a circumferential width (W2), and the circumferential width (W1) of the areas with increased surface roughness at the outlet of the nozzle is equal to the circumferential width (W2) of adjacent non-roughened areas. 9. The rocket nozzle of claim 1, wherein: said nozzle has an inlet, an outlet and a length (L), the areas with increased surface roughness extend over at least a part of the length (L) of the nozzle and have a circumferential width (W1), the non-roughened areas have a circumferential width (W2), and the circumferential width (W1) of the areas with increased surface roughness at the outlet of the nozzle is greater than the circumferential width (W2) of adjacent non-roughened areas. 10. The rocket nozzle of claim 1, wherein said nozzle is substantially bell shaped.
이 특허에 인용된 특허 (4)
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Pellet Marc (Vernon FRX), Enclosure containing hot gases cooled by transpiration, in particular the thrust chamber of a rocket engine.
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Haggander Jan,SEX ; Pekkari Lars-Olof,SEX, Rocket engine nozzle.
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Vuillamy Didier (Quincampoix FRX) Baudart Pierre-Andr (Vernon FRX) Tiret Etienne (La Chapelle Reanville FRX) Beaurain Andr (Chambly FRX), Rocket engine nozzle having a notched diverging portion.
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Johnson Donald E. (Stuart FL) Bustamante Rafael A. (Jupiter FL) Thayer Edward B. (Jupiter FL) Peckham Richard J. (Jupiter FL), Rocket nozzle for a rocket engine.
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