Interchangeable power turbine cartridge assembly
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United States of America Patent
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-
Nov 9, 2004
Grant Date -
Mar 27, 2003
app pub date -
Sep 24, 2002
filing date -
Sep 26, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention recites a power turbine assembly including a turbine rotor and a plurality of turbine blades mounted to said rotor and adapted to rotate said rotor in response to a flow of hot gas over said blades. A support structure having a journal bearing and at least one other bearing supports said rotor for rotation, said journal bearing having a proximal end and a distal end with respect to said turbine blades. A supply of lubricant communicates with said journal bearing to provide lubricant between said rotor and an inner surface of said journal bearing, said lubricant damping rotational frequencies of said rotor and creating a temperature gradient from greater than about 1000.degree. F. at said blades to less than about 350.degree. F. at said distal end.
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