Patent ID: 8042338

Claim:
An atmospheric temperature difference power generator, comprising: a vaporizer at low elevation for vaporizing a lighter-than-air condensable working fluid, an insulated up-flow pipe for rising the vaporized working fluid up from the vaporizer through an elevation rise, wherein the atmospheric temperature decreases with elevation, a condenser for partially condensing the vaporized working fluid from the up-flow pipe due to heat exchange with the lower temperature atmosphere at the higher elevation to provide a condensate and a vapor, a nozzle below the condenser having a throat and a diffuser section for expanding the vapor from the condenser and the up-flow pipe through the throat and mixing the expanded vapor with the condensate from the condenser, thereby further compressing the mixture in the diffuser section to provide a compressed two-phase mixture, an insulated down-flow pipe for dropping the compressed two-phase mixture down from the condensing ejector nozzle through an elevation drop, thereby further compressing the two-phase mixture by gravitational compression to a higher pressure than the working fluid in the vaporizer, a separator for separating the liquid from the vapor in the further compressed two-phase mixture from the down-flow pipe, and a power engine for generating power from the separated vapor and a hydraulic engine for generating power from the separated liquid.