Power plants – Combustion products used as motive fluid – With gear – pressure exchanger – or screw-type compressor
Reexamination Certificate
2006-02-02
2010-06-01
Casaregola, Louis J (Department: 3741)
Power plants
Combustion products used as motive fluid
With gear, pressure exchanger, or screw-type compressor
C418S048000
Reexamination Certificate
active
07726115
ABSTRACT:
An axial flow positive displacement compressor has an inlet axially spaced apart and upstream from an outlet. Inner and outer bodies have offset inner and outer axes extend from the inlet to the outlet through first and second sections of a compressor assembly in serial downstream flow relationship. At least one of the bodies is rotatable about its axis. The inner and outer bodies have intermeshed inner and outer helical blades wound about the inner and outer axes respectively. The inner and outer helical blades extend radially outwardly and inwardly respectively. The helical blades have first and second twist slopes in the first and second sections respectively. The first twist slopes are less than the second twist slopes. An engine including the compressor has in downstream serial flow relationship from the compressor a combustor and a high pressure turbine drivingly connected to the compressor by a high pressure shaft.
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Fakunle Oladapo
Giffin Rollin George
Murrow Kurt David
Andes William Scott
Casaregola Louis J
General Electric Company
Rosen Steven J.
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