United States of America As Represented by the Secretary of the Air Force

The United States of America As Represented by the United States

United States Department of Energy and United States Department of Air

Charles D MaCarthur

Michael R Cates

Gregory C Cala

Bruce W Noel

W Dale Turley

Henry M Borella

Richard E Quigley, Jr

Structure and method for cooling hollow turbine rotor blades of a gas turbine engine utilizing vaporization and decomposition of an endothermic fuel are described which comprise a source of liquid endothermic fuel operatively connected to the blade, a passage for conducting the fuel through the blade and a layer of catalyst on the internal surfaces of the blade for promoting decomposition of the fuel.

Turbine blade cooling with endothermic fuel

A heat flux gauge comprising first and second thermographic phosphor layers separated by a layer of a thermal insulator. The gauge may be mounted on a surface with the first thermographic phosphor in contact with the surface. A light source is directed at the gauge, causing the phosphors to luminesce. The luminescence produced by the phosphors is collected and its spectra analyzed in order to determine the heat flux on the surface. First and second phosphor layers must be different materials to assure that the spectral lines collected will be distinguishable.

Optical heat flux gauge

A heat flux gauge comprising first and second thermographic phosphor layers separated by a layer of a thermal insulator wherein each thermographic layer comprises a plurality of respective thermographic phosphors. The gauge may be mounted on a surface with the first thermographic phosphor in contact with the surface. A light source is directed at the gauge, causing the phosphors to luminesce. The luminescence produced by the phosphors is collected and its spectra analyzed in order to determine the heat flux on the surface. First and second phosphor layers must be different materials to assure that the spectral lines collected will be distinguishable.

A heat flux gauge comprising first and second thermographic phosphor layers separated by a layer of a thermal insulator, wherein each thermographic layer comprises a plurality of respective thermographic sensors in a juxtaposed relationship with respect to each other. The gauge may be mounted on a surface with the first thermographic phosphor in contact with the surface. A light source is directed at the gauge, causing the phosphors to luminesce. The luminescence produced by the phosphors is collected and its spectra analyzed in order to determine the heat flux on the surface. First and second phosphor layers must be different materials to assure that the spectral lines collected will be distinguishable.

Growing community of inventors

Clayton, OH, United States of America

Charles D MaCarthur