Joints d'air externes de lames, et procédé de fabrication
| N° de brevet: |
EP1886745 (A1) |
| Date de publication: |
2008-02-13 |
| Inventeur(s): |
LUTJEN PAUL M [US];HOFF RICHARD W [US];PAGE RICHARD H [US];GATES ROGER J [US];BLAIR MICHAEL F [US]; |
| Demandeur(s): |
UNITED TECHNOLOGIES CORP [US]; |
| Classification: |
B22C9/10; |
| N° de demande: |
EP20070253070 20070803 |
| Numéro(s) de priorité: |
US20060502046 20060810 |
A blade outer air seal (BOAS) casting core (200) has first and second end portions (202,204) and a plurality of legs (210...220). Of these legs, first legs (210,214,218) each have: a proximal end (242,246,250) joining the first end portion (202); a main body portion; and a free distal portion (230,234,238). Second legs (212,216,220) each have: a proximal end (244,248,252) joining the second end portion (204); a main body portion; and a free distal portion (232,236,240).
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