C - Chemistry – Metallurgy – 23 – C
Patent
C - Chemistry, Metallurgy
23
C
C23C 14/22 (2006.01) C23C 14/00 (2006.01) F01D 5/18 (2006.01)
Patent
CA 2284015
A method of producing numerous small passages within a turbomachinery component is disclosed. The method comprises providing a turbomachinery component substrate having grooves, filling the grooves with a filler, condensing a vapor onto the surfaces of the substrate and the filler, and removing the filler. The method enables the formation of small passages located close to the component surface without the low yield rate associated with conventional methods of turbomachinery component production. Turbomachinery components having numerous small passages for cooling are also disclosed. Such passages may diminish fluid pressure losses of a cooling medium passing therethrough.
L'invention concerne un procédé permettant de former de petits canaux à l'intérieur d'un composant de turbomachines. Le procédé consiste à utiliser un substrat de composant de turbomachines présentant des rainures, à remplir lesdites rainures d'une matière de remplissage, à condenser une vapeur sur les surfaces du substrat et de la matière de remplissage et à retirer ladite matière. Le procédé permet de former de petits canaux situés à proximité de la surface du composant mais sans connaître le taux de rendement faible qui est associé aux procédés traditionnels de production de composants de turbomachines. L'invention concerne également des composants de turbomachines dotés de nombreux petits canaux permettant le refroidissement. Ces canaux peuvent diminuer les pertes de pression hydraulique d'un milieu de refroidissement s'écoulant en leur sein.
Siemens Westinghouse Power Corporation
Smart & Biggar
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