Endothermic fuel compositions comprising 50% or more by volume decahydronaphthalene, including cis-decahydronaphthalene, trans-decahydronaphthalene or a mixture thereof, for use as endothermic fuels in hypersonic vehicles and particularly for use in dual-mode ramjet or supersonic combustion ramjet air breathing engines. Methods for operating a ramjet or scram jet engine wherein the endothermic fuel is used for cooling the combustor and for combustion in the combustor.

Endothermic fuel compositions comprising 50% or more by volume decahydronaphthalene, including cis-decahydronaphthalene, trans-decahydronaphthalene or a mixture thereof, for use as endothermic fuels in hypersonic vehicles and particularly for use in dual-mode ramjet or supersonic combustion ramjet air breathing engines. Methods for operating a ramjet or scram jet engine wherein the endothermic fuel is used for cooling the combustor and for combustion in the combustor.

A device and a method for improving combustion are disclosed. In an embodiment the device includes a combustion chamber including at least one combustion chamber inlet for feeding in fuel or air or the fuel/air mixture, a reactor chamber connected upstream of the combustion chamber, the reactor chamber comprising a plasma generator, wherein the plasma generator is a piezoelectric transformer configured to operate with a low voltage and a control apparatus for the plasma generator, wherein the device is configured in such a way that even before a start of an actual combustion process at least one gaseous component in the reactor chamber is enriched with radicals and ions by the plasma generator.

A nozzle includes an outer gas flow path, an inner gas flow path radially inward from the outer gas flow path, a liquid flow path defined radially between the inner gas flow path and the outer air flow path, and a core conduit defined radially inward from the inner gas flow path. An injector assembly includes an outer housing, a nozzle within the outer housing, and an outer housing gas flow path defined radially outward from the nozzle between an inner surface of the outer housing and an outer surface of the nozzle. The nozzle includes an outer gas flow path, an inner gas flow path radially inward from the outer gas flow path, a liquid flow path defined radially between the inner gas flow path and the outer gas flow path and a core conduit defined radially inward from the inner gas flow path.

A device for optimizing hydrocarbon combustion has at least one dipole antenna comprising first and second wires extending in opposite directions. At least one power source, can supply the wires with voltages which are intermittent, alternating and sinusoidal, said voltages being between 2,000 V to 100,000 V and having frequencies between 30 KHz and 1 MHz. The voltage in the second wire is opposite and balanced to the voltage in the first wire. When the dipole antenna is placed parallel and in close proximity to a hydrocarbon supply, an electromagnetic field acts on the hydrocarbon to enhance combustion of the hydrocarbon. An apparatus including the device and a method of using the device to optimize hydrocarbon combustion are also provided.

A device for optimizing hydrocarbon combustion has at least one dipole antenna comprising first and second wires extending in opposite directions. At least one power source, can supply the wires with voltages which are intermittent, alternating and sinusoidal, said voltages being between 2,000 V to 100,000 V and having frequencies between 30 KHz and 1 MHz. The voltage in the second wire is opposite and balanced to the voltage in the first wire. When the dipole antenna is placed parallel and in close proximity to a hydrocarbon supply, an electromagnetic field acts on the hydrocarbon to enhance combustion of the hydrocarbon. An apparatus including the device and a method of using the device to optimize hydrocarbon combustion are also provided.

Devices and methods are disclosed for charging fuel molecules in a delivery conduit. The devices are monopole charging devices having at least three individual magnets. A one piece orienting mount having insert formations equal in number to the number of magnets and spaced a selected distance from each other receives and holds the magnets, and is secured around the delivery conduit. The mount holds the magnets in an orientation with a common pole of each contacting the conduit and the opposite pole of each spaced from and facing away from the conduit.

A fuel oxygen conversion unit includes a contactor defining a liquid fuel inlet, a stripping gas inlet and a fuel/gas mixture outlet; and a fuel gas separator defining a fuel/gas mixture inlet in flow communication with the fuel/gas mixture outlet of the contactor and an axis. The fuel gas separator further includes a stationary casing; and a separator assembly including a core and a plurality of paddles extending from the core, the separator assembly rotatable about the axis within the stationary casing to separate a fuel/gas mixture received through the fuel/gas mixture inlet into a liquid fuel flow and stripping gas flow.

A fuel oxygen conversion unit includes a contactor defining a liquid fuel inlet, a stripping gas inlet and a fuel/gas mixture outlet; and a fuel gas separator defining a fuel/gas mixture inlet in flow communication with the fuel/gas mixture outlet of the contactor and an axis. The fuel gas separator further includes a stationary casing; and a separator assembly including a core and a plurality of paddles extending from the core, the separator assembly rotatable about the axis within the stationary casing to separate a fuel/gas mixture received through the fuel/gas mixture inlet into a liquid fuel flow and stripping gas flow.

The device for reducing the fuel consumption of a heat engine, in particular of a motor vehicle, includes a substantially tubular induction member mounted around a pipe which carries the fuel, in order to create an electromagnetic field therein from an AC current received from an electric power source. The induction member includes a sleeve arranged to hold a winding of wire connected to an electric power source. The sleeve is housed in a tubular shell ensuring that the device complies with electromagnetic compatibility standards.