Abstract: A system for obtaining fresh water from seawater, the seawater is passed through a plurality of precipitation tanks arranged in series and moreover it is stored for a given period of time in each precipitation tank, during which a signal of low frequency, low voltage and low current is applied to a pair of titanium electrode plates provided in each precipitation tank, the frequency of the signal to be applied to the precipitation tanks being gradually decreased in the flowing direction of the seawater, so as to separate oxygen from molecules which constitute the seawater and remove by precipitation the seawater molecules that are increased in salinity and specific weight being deprived of the oxygen therefrom. As a result, it is possible to obtain highly nutritious fresh water from seawater by a simple safe system at low cost.

Abstract: There is provided a purifying device capable of purifying fuel having less impurities and many dissolved oxygen by applying a low frequency/voltage/current signal to the fuel during supply of fuel at the portion in front of and behind a fuel filter.

Abstract: In a method for obtaining fresh water from seawater, the seawater is passed through a plurality of precipitation tanks arranged in series and moreover it is stored for a given period of time in each precipitation tank, during which a signal of low frequency, low voltage and low current is applied to a pair of titanium electrode plates provided in each precipitation tank, the frequency of the signal to be applied to the precipitation tanks being gradually decreased in the flowing direction of the seawater, so as to separate oxygen from molecules which constitute the seawater and remove by precipitation the seawater molecules that are increased in salinity and specific weight being deprived of the oxygen therefrom. As a result, it is possible to obtain highly nutritious fresh water from seawater by a simple device safely at low cost.

Abstract: A device for purifying fuel comprises arc-shaped conductive plates facing each other arranged on the outer periphery of a fuel communication synthetic resin pipe interposed in a fuel supply pipe between a fuel tank and an engine, a protective cover for covering the outer peripheries of the arc-shaped conductive plates and an AC signal generator means coupled to a battery for applying a low frequency, low voltage and low current AC signal between the arc-shaped conductive plates. As a result, it is possible to provide a device for purifying fuel which is safe, easily controllable, of low cost and reliable.

Abstract: In a method of supplying hydrous fuel in which water mixed with fuel is positively burned to thereby remarkably economize the fuel consumption. Oil and water which are supplied from an oil tank and a water tank by way of an oil supply pipe and a water supply pipe respectively are mixed with each other and thereafter the mixture of the oil and water is supplied to a combustion chamber by way of a hydrous fuel supply pipe, wherein a low frequency, low voltage and low current signal is applied to a conductive coil wound around the water supply pipe coupled to the water tank so as to apply an electromagnetic induction field to the water and reduce the specific gravity of water, and thereafter the water is mixed with the oil from the oil tank, and subsequently the low frequency, low voltage and low current signal is further applied to a conductive coil wound around the hydrous fuel supply pipe so as to apply the electromagnetic induction field to the hydrous fuel.

Abstract: A device for purifying fuel is safe and can be easily controlled, and is of low cost by applying a low frequency, low voltage and low current signal to fuel during the supply thereof. The device comprises a fuel supply pipe interposed between a fuel tank and an engine, a fuel communication pipe interposed in the fuel supply pipe, a conductive coil wound around a periphery of the fuel communication pipe, a protective cover for covering the conductive coil, and an AC signal generator connected to a battery and the conductive coil for generating a low frequency, low voltage and low current signal to the conductive coil.