发明名称 |
A seal in a gas turbine and a method of manufacturing a seal |
摘要 |
<p>A seal (48) between a compressor rotor blade (26) and compressor casing (28) comprises an abradable structure (59) on the compressor casing (28). The abradable structure (59) comprises a metallic foam (60) having pores (66, 68). The metallic foam (60) has a first a region (62) and a second region (64). The first region (62) of the metallic foam (60) is arranged adjacent to the compressor casing (28) and the second region (64) of the metallic foam (60) is spaced from the compressor casing (28) by the first region (62) of the metallic foam (60). The pores (68) of the second region (64) of the metallic foam (60) contain an abradable material (70) and the pores (66) of the first region (62) of the metallic foam (60) do not contain an abradable material.</p> |
申请公布号 |
EP2196632(A3) |
申请公布日期 |
2012.12.05 |
申请号 |
EP20090252387 |
申请日期 |
2009.10.08 |
申请人 |
ROLLS-ROYCE PLC |
发明人 |
SELLARS, CHRISTOPHER;PATTINSON, GLEN;GENT, JOHN TRAVIS |
分类号 |
F01D11/12 |
主分类号 |
F01D11/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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