发明名称 |
Verschleisszusammensetzung, verfahren zur Herstellung einer Verschleisszusammensetzung und gasturbine Motor mit Verschleissdichtung |
摘要 |
An abradable seal (46) comprises a plurality of hollow aluminosilicate spheres spheres (48) in a matrix of aluminium phosphate (50). The matrix of aluminium phosphate (50) also has an aluminosilicate filler. The hollow aluminosilicate spheres (48) have a diameter in the range of 400 to 1800 microns, preferably a diameter in the range of 800 to 1400 microns. The weight proportion of hollow aluminosilicate spheres (48) in the abradable seal (46) is 30% to 50%. The density of the abradable seal (46) is 1.5 grammes per cubic centimetre. The hollow aluminosilicate spheres (48) in the aluminium phosphate matrix (50) have a relatively high temperature capability of approximately 1300<o>C maximum. This makes the abradable seal (46) better able to withstand the environment in the turbine (30) of a turbofan gas turbine engine (10). <IMAGE> |
申请公布号 |
DE69632981(D1) |
申请公布日期 |
2004.09.02 |
申请号 |
DE1996632981 |
申请日期 |
1996.03.27 |
申请人 |
ROLLS-ROYCE PLC, LONDON |
发明人 |
MASON, STEPHEN;PERCIVAL, MICHAEL JOHN LAWRENCE;MERRILL, GARY BRIAN;DOLEMAN, PAUL ANDREW |
分类号 |
F01D11/08;B32B18/00;C04B20/00;C04B28/34;C09K3/10;F01D11/12;F16J15/20;(IPC1-7):C04B28/34;C04B41/85;C04B38/08;C04B35/447 |
主分类号 |
F01D11/08 |
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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