Fluid sprinkling – spraying – and diffusing – Reaction motor discharge nozzle with jacketed or hollow... – With subsequent mixing in main discharge stream in or...
Patent
1996-04-25
1998-03-31
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Reaction motor discharge nozzle with jacketed or hollow...
With subsequent mixing in main discharge stream in or...
B64D 3304
Patent
active
057328838
ABSTRACT:
The invention relates to an enclosure containing hot gases cooled by transpiration, the enclosure comprising a porous wall and means for applying a cooling fluid to the outside face of said porous wall so as to cause a flow of cooling fluid to pass through the porous wall, by transpiration. The cooling fluid application means comprise a plurality of cooling liquid distribution pipes regularly disposed around the porous wall and terminating tangentially on its outside face in a plurality of superposed horizontal injection levels, and feed channels crossing substantially perpendicularly through the distribution pipes, formed between each of them, and connected to cooling liquid feed means, together with calibration ducts of determined section connecting, at each of the injection levels, the vertical feed channels to the horizontal distribution pipes surrounding them so as to deliver predetermined headloss to the inside face of the porous wall, which headloss is adapted as a function of the zone to be cooled so as to optimize cooling flow rates along the porous wall.
REFERENCES:
patent: 2857657 (1958-10-01), Wheeler
patent: 3153320 (1964-10-01), Prosser
patent: 3188801 (1965-06-01), Prosser
patent: 3353359 (1967-11-01), Webb et al.
patent: 3585800 (1971-06-01), Kuntz
patent: 3832290 (1974-08-01), Fortini
patent: 3910039 (1975-10-01), Fortini
patent: 5363645 (1994-11-01), Pellet
"Transpiration and Regenerative Cooling of Rocket Engine", NTIS Tech Notes, Jan. 1990, Springfield, Virginia, U.S.A., pp. 45, XP 000104292.
Beaurain Andre
Tiret Etienne
Evans Robin O.
Kashnikow Andres
Societe Europeene de Propulsion
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