Compressors for fluids

Claim 1

A CENTRIFUGAL COMPRESSOR OF THE TRANSONIC OF SUPERSONIC TYPE OPERATING BY MEANS OF A ROTARY BLADED IMPELLER AND A STATIONARY DIFFUSER THEREAROUND, SAID COMPRESSOR COMPRISING TWO OPPOSITE ANNULAR DISK EXTENSIONS INTEGRAL WITH SAID ROTARY BLADED IMPELLER AND PROJECTING RADIALLY OUTWARDLY THEREFROM DOWNSTREAM OF THE TRAILING EDGE OF THE BLADES THEREOF, TO DEFINE A PERIPHERAL ANNULAR ROTARY PASSAGE EXTENDING RADIALLY INTERMEDIATE SAID BLADED IMPELLER AND SAID DIFFUSER, AND MEANS FAST WITH SAID ROTARY IMPELLER FOR EXTRACTING CALORIES FROM THE FLUID FLOW DISCHARGED BY SAID BLADES ON ITS WAY THROUGH SAID ANNULAR ROTARY PASSAGE TOWARD SAID DIFFUSER, SAID CALORIES EXTRACTIG MEANS COMPRISING INJECTORS OF VAPORIZABLE LIQUID OPENING INTO THE PERIPHERAL ANNULAR ROTARY PASSAGE, WHEREBY THE LATENT HEAT OF VAPORIZATION IS APPLIED TO EXTRACT CALORIES FROM THE FLUID FLOW THROUGH SAID PASSAGE, SAID LIQUID INJECTORS BEING LOCATED ON THE TRAILING EDGE OF THE IMPELLER BLADES.