Fluid injector

Claim 1

AN INJECTOR PUMP COMPRISING: A MIXING TUBE HAVING AN INLET AND AN OUTLET END; MEANS TO INTRODUCE INTO THE INLET END OF THE MIXING TUBE A LOW SPEED DRIVEN LIQUID; MEANS TO INTRODUCE INTO THE MIXING TUBE A HIGH SPEED DRIVING FLUID CAPABLE OF BECOMING CONDENSED BY THE DRIVEN LIQUID, THE HIGH VELOCITY OF THE DRIVING FLUID IMPINGING UPON THE DRIVEN LIQUID TO CAUSE THE FLUIDS TO MIX, MOVE TOWARD THE OUTLET END, AND EMIT THEREFROM WITH A VELOCITY ABOVE THE MINIMUM SONIC VELOCITY OF MIXTURES OF THE TWO BUT WITH THE CONDENSATION OF THE DRIVING FLUID INCOMPLETE SO THAT THE QUALITY OF THE MIXTURE IS ABOVE THAT QUALITY AT WHICH SUCH VELOCITY IS SUPERSONIC, A SUPERSONIC DIFFUSER HAVING ITS ENTRANCE SPACED FROM THE OUTLET OF THE MIXING TUBE BUT POSITIONED TO RECEIVE THE STREAM THEREFROM, MEANS TO MAINTAIN THE INTEGRITY OF THE FLUID MIXTURE IN THE SPACE BETWEEN THE MIXER AND THE DIFFUSER AGAINST INFLUX OF DELETERIOUS FOREIGN FLUIDS, THE SPACE BETWEEN THE MIXER AND THE DIFFUSER BEING SUFFICIENT TO ENABLE CONDENSATION OF THE DRIVING FLUID TO CONTAINUE FAR ENOUGH TO RENDER THE STREAM VELOCITY SUPERSONIC IN THE FREE SPACE, THE DIFFUSER HAVING ITS CROSS SECTION GRADUALLY DECREASING DOWNSTREAM FROM THE ENTRANCE TO A THROAT, THE SAME BEING SHAPED TO CONDUCT THE STREAM AND TO CONFINE SHOCK WAVES THEREIN, WHEREBY TO RAISE THE PRESSURES THEREIN.