Gas turbine plants with heat exchangers

Claim 1

MEANS FOR HEATING THE WORKING MEDIUM OF A GAS TURBINE WHICH MEANS COMPRISE A CASING, A COMBUSTION CHAMBER WITHIN SAID CASING, A PLURALITY OF TUBES ARRANGED BETWEEN THE COMBUSTION CHAMBER AND THE CASING AND LEAVING A SPACE BETWEEN THE TUBES AND THE CASING ON THE ONE HAND AND THE TUBES AND THE COMBUSTION CHAMBER ON THE OTHER, THE INLET END OF THE COMBUSTION CHAMBER EXTENDING BEYOND THE TUBES IN AN AXIAL DIRECTION WHILE AT THE OUTLET END OF SAID CHAMBER THE TUBES EXTEND IN AN AXIAL DIRECTION BEYOND THE COMBUSTION CHAMBER; AN ANNUAL CHAMBER SURROUNDING THE SAID INLET END OF THE COMBUSTION CHAMBER AND IN COMMUNICATION WITH THE INSIDE OF THE TUBES AND BY MEANS OF A DUCT WITH THE TURBINE OUTLET WHEREBY EXHAUST GAS FROM THE TURBINE IS CONDUCTED THROUGH THE INSIDE OF THE TUBES TO AN OUTLET AT THE END OF SAID TUBES, AN INLET DUCT FROM THE COMPRESSOR OUTLET WHICH INLET DUCT PASSES ABOUT THE TUBES ADJACENT THE OUTLET ENDS THEREOF, WHICH INLET DUCT LEADS WORKING MEDIUM FROM THE COMPRESSOR TO A SPACE BETWEEN THE TUBES ADJACENT THE OUTLET END OF THE COMBUSTION CHAMBER, BAFFLES AXIALLY SPACED ALONG THE SAID TUBES, THE WORKING MEDIUM BEING CAUSED TO FLOW FROM SAID SPACE OVER SUCCESSIVE SECTIONS OF THE TUBES FIRST IN A GENERALLY RADIAL OUTWARD DIRECTION AND THEN IN A GENERALLY RADIAL INWARD DIRECTION BETWEEN THE AXIALLY SPACED BAFFLES AND BETWEEN THE SPACE BETWEEN TUBES AND CASING AND THE SPACE BETWEEN TUBES AND COMBUSTION CHAMBER, BEFORE ENTERING THE COMBUSTION CHAMBER WHERE IT TAKES PART IN THE COMBUSTION OF A FUEL, AND AN OUTLET DUCT SITUATED INTERMEDIATE THE INLET DUCT FOR EXHAUST GAS FROM THE TURBINE AND THE INLET DUCT FOR WORKING MEDIUM FROM THE COMPRESSOR WHICH OUTLET DUCT LEADS THE COMBUSTION PRODUCTS FROM THE COMBUSTION CHAMBER THROUGH A SPACE BETWEEN THE TUBES TO THE TURBINE INLET, SAID COMBUSTION PRODUCTS FORMING THE WORKING MEDIUM FOR THE TURBINE.