Patent Number: 
Section: claims

1. An efficient turbine system that utilizes nuclear thermal energy in a unique combined Carnot cycle and Rankine cycle in a closed cogenerative and regenerative cycle, comprising:a multi-stage gas turbine having multiple turbine stages;a condensible working fluid, heated by a thermal energy source to a superheated gas and delivered in a main path to the internals of the multi-stage gas turbine and in an auxiliary path to each stage of the multi-stage gas turbine as a superheated steam for isothermal expansion, wherein a portion of the condensed working fluid is injected as a liquid into the multi-stage gas turbine before and between the turbine stages for a regenerative cogeneration expansion as a gas that supplements and combines with the primary working fluid in the multi-stage gas turbine; anda multi-stage recovery turbine wherein the combined working fluid is delivered to the multi-stage recovery turbine with a final adiabatic expansion in the multi-stage recovery turbine with work extracted by electric generators connected to at least one of the turbines. 2. The turbine system of claim 1 wherein the multi-stage gas turbine has a shroud over the multiple turbine stages that forms a high pressure chamber with passages to each of the multiple stages of the turbine for feeding supplemental superheated gas to the multi-stage gas turbine. 3. The turbine system of claim 2 wherein the passages are perforations in the shroud at the turbine stages. 4. The turbine system of claim 2 wherein the working fluid is water. 5. The turbine system of claim 4 wherein the shroud has water injection nozzles for injecting water over the shroud for cooling the shroud wherein the water flashes to steam and adds to the working fluid in the multi-stage gas turbine. 6. The turbine system of claim 1 wherein the multi-stage gas turbine has turbine blades and stators and the portion of the condensed working fluid injected as a liquid into the multi-stage gas turbine before and between the turbine stages is injected onto the turbine blades and stators of the multi-stage gas turbine for cooling the turbine blades and stators. 7. An efficient turbine system that utilizes a thermal energy source in a combined Carnot cycle and Rankine cycle in a closed cogenerative and regenerative cycle comprising:a multi-stage gas turbine having multiple turbine stages;a condensible working fluid, heated by the thermal energy source to a superheated gas and delivered in a main path to the internals of a multi-stage gas turbine and in an auxiliary path to each stage of the multi-stage gas turbine for isothermal expansion wherein a portion of the condensed working fluid is injected as a liquid into the multi-stage gas turbine before and between the turbine stages for a regenerative cogeneration expansion as a gas that supplements and combines with the primary working fluid in the multi-stage gas turbine; and,a recovery turbine wherein the combined working fluid is delivered to the recovery turbine with a final adiabatic expansion in the recovery turbine with work extracted by electric generators connected to at least one of the turbines. 8. The turbine system of claim 7 wherein the multi-stage gas turbine has a shroud over the multiple turbine stages that forms a high pressure chamber with passages to each of the multiple stages of the turbine for feeding supplemental superheated gas to the multi-stage gas turbine. 9. The turbine system of claim 8 wherein the passages are perforations in the shroud at the turbine stages. 10. The turbine system of claim 8 wherein the working fluid is water. 11. The turbine system of claim 8 wherein the shroud has water injection nozzles for injecting water over the shroud for cooling the shroud wherein the water flashes to steam and adds to the working fluid in the multi-stage gas turbine. 12. The turbine system of claim 7 wherein the multi-stage gas turbine has turbine blades and stators and the portion of the condensed working fluid injected as a liquid into the multi-stage gas turbine before and between the turbine stages is injected onto the turbine blades and stators of the multi-stage gas turbine for cooling the turbine blades and stators. 13. The turbine system of claim 7 wherein the thermal energy source is nuclear thermal energy. 14. The turbine system of claim 7 wherein the recovery turbine is connected to an electrical generator. 15. The turbine system of claim 7 wherein the working fluid is expanded in the recovery turbine and condensed for return to the cycle. 16. The turbine system of claim 7 wherein the turbine system has a high pressure pump and condensed working fluid is returned to a fluid supply system by the high pressure pump.