Abstract: A multiple-stage pump compressor is disclosed for utilization in a heating or cooling system which comprises separate hot and cold containers connected to flexible members within pressure chambers in each of a plurality of pumping stages.

Abstract: A pump system is disclosed for pumping a first fluid from a source to a storage facility comprising a multiple-stage small temperature differential heat-powered pump, a second fluid heater operable to heat a second fluid to a fixed hot temperature, and a third fluid cooler operable to cool a third fluid to a fixed cold temperature, wherein hot fluids and cold fluids are diverted into the multiple-stage small temperature differential heat-powered pump.

Abstract: A pump system is disclosed for pumping a first liquid from a source to a storage facility comprising a multiple-stage small temperature differential heat-powered pump, a second liquid heater operable to heat a second liquid to a fixed hot temperature, and a third liquid cooler operable to cool a third liquid to a fixed cold temperature, wherein hot liquids and cold liquids are diverted into the multiple-stage small temperature differential heat-powered pump.

Abstract: A generating system is disclosed for converting the flow of a first liquid to electric power comprising a plurality of multiple-stage small temperature differential heat-powered pumps, a liquid heater operable to heat a second liquid to a fixed hot temperature, a liquid cooler operable to cool a third liquid to a fixed cool temperature, a hydraulic-to-mechanical power conversion device which is operative to convert the flow of the first liquid to mechanical power with its input connected to the output of the plurality of multiple-stage small temperature differential heat-powered pumps and its output connected to the input of the plurality of multiple-stage small temperature differential heat-powered pumps, and a mechanical-to-electrical power conversion device to produce electric power.