The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 31, 1998
Filed:
Apr. 25, 1996
Andre Beaurain, Chambly, FR;
Etienne Tiret, La Chapelle Reanville, FR;
Societe Europeene de Propulsion, Suresnes, FR;
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.