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AssigneeGeneral Electric Company
InventorsSantosh Potnuru, Pradeep Hemant Sangli, Ravindra Shankar Ganiger, Praveen Sharma, Scott Alan Schimmels
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A seal assembly for a rotary machine. The seal assembly includes a rotor and a stator. The rotor is rotatable about a rotational axis and has a rotor seal face. The stator has a stator seal face. The stator seal face is positioned opposite the rotor seal face and faces the rotor seal face with a gap therebetween. A portion of one of the rotor and the stator is formed of (i) a shape memory alloy or (ii) a first metal and a second metal with the second metal having a coefficient of thermal expansion different from the first metal. The seal assembly is characterized by a seal clearance compliance ratio (SCCR) from 20% to 90%.
A seal assembly for a rotary machine, the seal assembly comprising:
The seal assembly of claim 2, wherein the stator includes an abradable material layer positioned opposite the plurality of teeth of the rotor, the stator seal face being formed on a surface of the abradable material layer, the abradable material layer being formed from the temperature sensitive material, and the temperature sensitive material being a shape memory alloy.
Dependencies are inferred from the claim text.