| US 7,517,189 B2 | ||
| Cooling circuit for gas turbine fixed ring | ||
| Stephane Camus, Alfortville (France) | ||
| Assigned to SNECMA, Paris (France) | ||
| Appl. No. 10/557,203 PCT Filed Jul. 08, 2004, PCT No. PCT/FR2004/001785 § 371(c)(1), (2), (4) Date Nov. 17, 2005, PCT Pub. No. WO2005/008033, PCT Pub. Date Jan. 27, 2005. |
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| Claims priority of application No. 03 08483 (FR), filed on Jul. 10, 2003. | ||
| Prior Publication US 2007/0041827 A1, Feb. 22, 2007 | ||
| Int. Cl. F03B 11/00 (2006.01) | ||
| U.S. Cl. 415—173.1 [415/175] | 13 Claims |
| 1. A stationary ring surrounding a hot gas passage of a gas turbine, the ring being surrounded by a stationary annular housing
so as to co-operate therewith to define an annular cooling chamber into which there opens out at least one cooling air feed
orifice, the ring comprising:
a plurality of ring segments, wherein each ring segment includes a top internal cooling circuit and a bottom internal cooling
circuit, the bottom cooling circuit being independent of the top cooling circuit, and being radially offset relative to the
top cooling circuit, and the bottom cooling circuit including at least one cooling air feed orifice leading from the cooling
chamber,
wherein said top cooling circuit includes at least one cooling air feed orifice leading from said cooling chamber.
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