Abstract: A turbine is operatively connected to load structure, to transmit rotary drive thereto, with two-phase flow nozzle receiving pressurized flow to rotate the turbine, the nozzle structure configured to expand flow consisting of two or more of the following phases: i) gas ii) liquid iii) gas and liquid mixture iv) supercritical gas and liquid mixture, and with efficient conversion of enthalpy.

Abstract: A multi-component apparatus characterized as performing a two-phase thermodynamic cycle, for conversion of heat energy to useful power comprises: fluid means consisting to two or more chemical components to absorb heat energy, the fluid means providing an increasing temperature and increasing fraction of gas phase as increasing amounts of heat are absorbed, expander means operating to convert the enthalpy in a received mixture of gas and liquid, formed in said fluid means, as a result of the said heat energy absorbed by the fluid means, to mechanical, shaft power, heat exchanger means operating to transfer the heat energy to be absorbed by the fluid means, condenser means operating to reject the unconverted enthalpy, by the expander means, in the fluid means, thereby condensing any gas to convert the fluid means to liquid, and pump means operating to pressurize liquid fluid means leaving the condenser means, in order to return the fluid means to the heat exchanger means, closing the thermodynamic cycle.

Abstract: Variable phase turbine apparatus comprising, in combination a rotatably driven load structure, defining an axis, confinement means forming a fluid flow passage extending generally axially and adjacent said load structure, a turbine operatively connected to said load structure, to transmit rotary drive thereto, two-phase flow nozzle means receiving pressurized flow via said passage, and directing flow of fluid from said passage, expanded in the nozzle means, at the turbine to rotate the turbine, the nozzle means configured to expand flow consisting of two or more of the following phases: v) gas vi) liquid vii) gas and liquid mixture viii) supercritical gas and liquid mixture, and with efficient conversion of enthalpy.