Abstract: Installation for producing motive power, operating on a hybrid cycle of gas and vapor such as steam. The installation has a heat accumulator for storing a heat-exchange fluid which can also act as a fluid fuel for a heat source adapted to heat the fluid of the heat accumulator. Heat can be drawn from the accumulator in the form of a flow of hot fluid, for use as required by a motive power producing machine which may be a vapor turbine. Fluid can also be drawn from the accumulator, to act as a fuel for the heat source, supplementary fluid being supplied to the accumulator to make up for the amount drawn off, whereby the accumulator contents are continuously renewed, to reduce thermal decomposition of the fluid fuel. The heat source can be a gas turbine for producing a basic power output, the turbine exhaust gases being used to heat the heat-exchange fluid by way of a heatexchanger connected to the heat accumulator.

Abstract: Gas turbine, steam turbine and/or process steam systems are combined with supercritical carbon dioxide cycle engines to produce major improvements in net plant efficiency by using the heat inputs and outputs of the supercritical CO.sub.2 cycle to supply or remove heat in advantageous ways to the gas turbine, steam turbine and/or process steam systems.

Abstract: A geothermal energy transfer and utilization system makes use of thermal energy stored in hot solute-bearing well water to generate super-heated steam from an injected flow of clean water. The super-heated steam is then used for operating a turbine-driven pump at the well bottom for pumping the hot solute-bearing water at high pressure and in liquid state to the earth's surface, where it is used by transfer of its heat to a closed-loop steam generator-turbine-alternator combination for the beneficial generation of electrical or other power. Residual concentrated solute-bearing water is pumped back into the earth. The clean cooled water regenerated at the surface-located system is returned to the deep well pumping system also for lubrication of a fluid bearing arrangement supporting the turbine-driven pump system. The deep well pump system is supported within the well casing pipe from the earth's surface by the turbine exhaust steam conduit.

Abstract: The present invention discloses an engine with 25 to 70% better overall efficiency with exhaust emissions within present EPA 1975 standards. The vane type rotary engine uses exhaust from a multichamber Otto cycle engine to power a Stirling cycle engine on the same shaft. Fuel burned in the high surface to volume ratio chambers in the Otto cycle produce very little NO.sub.2 + N.sub.0 gas while producing excessive amounts of unburned hydrocarbons. Air injection into the extremely hot exhaust gases characteristic of the vane type engine is used in a hot wall continuous burning afterburner to remove unburned hydrocarbons and boost the temperature prior to the Stirling cycle hot side heat exchanger.

Abstract: A method and apparatus for generation of power wherein a first fluid is compressed and accelerated within radially oriented rotor passages with accompanying temperature increase during said compression, wherein heat is transferred into a second fluid also being accelerated but which has a lesser temperature increase, and wherein both fluids are then decelerated and expanded with release of work. Two rotors are used, with said second fluid being expanded either partially or fully within the second rotor. Suitable heat exchangers are provided within the rotors for adding heat into said first fluid and removing heat from said second fluid; also, a cooling heat exchanger may be provided within the passages for said first fluid. The heat transfer from first fluid to second fluid occurs in areas near the rotor periphery, and the cooling and heat addition heat exchangers are located generally inward toward rotor center from said heat exchangers near said rotor periphery.

Abstract: System for recovering waste heat energy produced by an internal combustion engine or other waste heat source. Heat energy present in the engine coolant or engine exhaust is used as a power source for a closed secondary power circuit operating on the Rankine cycle. The secondary power circuit incorporates a high efficiency compact evaporator system.

Abstract: A power system comprising a reactor for chemically forming a hydride by reaction with hydrogen at a relatively low pressure and relatively low temperature, means for heating the hydride while retaining it at a constant volume to effect chemical compression of the hydrogen, and a power generating, gas expansion device connected to the reactor for receiving hydrogen under pressure therefrom, and expanding it to derive power therefrom and simultaneously generating refrigeration by expansion of the hydrogen therethrough, and means for regenerating the hydride.