The Garrett Corporation

General Electric Company

Charles E Corrigan

Paul R Dodge

Bruce E Knudsen

Hans F Maertins

James C Mays

Method and apparatus for producing a signal analogous to the means temperature of fluid within a flow path is in a turbo machine. The fluid flowing in the flow path has a nonconstant temperature considered transversely thereto and defining a temperature profile. An elongate thermosiphon is immersed substantially entirely in said fluid flow and extend transversely thereto for sensing a thermal characteristic of the vapor therein.

Mean temperature sensor

A combustion turbine engine having an improved variable-area turbine stator assembly.

Combustion turbine engine

A combustion turbine engine having an improved variable-area turbine stator assembly defining a flow path for motive fluid. The stator assembly includes a multitude of guide vane members which are movable into and out of the motive fluid flow path to respectively decrease and increase the effective fluid flow area defined thereby.

Improved structure and method for an internally cooled, laminated stator or turbine blade for turbomachinery includes internal cooling passage configurations within each lamina which promote different forms of cooling of the internal or external surfaces of the blade.

Laminated airfoil and method for turbomachinery

Laminated airfoil

The structure which supports a rotor-surrounding shroud is composed of a material exhibiting a low coefficient of thermal expansion at low temperatures and a high coefficient of thermal expansion at higher temperatures. In this way, low alpha characteristics persist during periods of low temperature operation to provide large cold clearances and acceptable clearances during transient operation, while high alpha characteristics persist during periods of high temperature operation to provide close clearance control at maximum and part-power, steady-state operating conditions. The two-alpha material also finds use with other relatively rotating parts having close clearance relationship therebetween, such as in the stationary portion of a seal structure.

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Tempe, AZ, United States of America

Charles E Corrigan