Compressed rich natural gas is divided into a cooling gas stream and a fuel gas stream. The cooling gas stream is depressurized. The cooling gas and the fuel gas are then heat exchanged to provide a first cooling step to the fuel gas. The cooled fuel gas continues into a second cooling step in a second heat exchanger, and then flows into a separator vessel where liquids are removed from the bottom of the separator and conditioned fuel gas exits the top of the separator. The conditioned fuel gas from the separator and produced from its influent is depressurized and heat exchanged to provide the second cooling fluid for the second heat exchanger.

A gaseous fuel mixer assembly for an engine includes a mixer housing forming gas delivery openings, and positioned to extend across a flow path formed by an intake conduit for the engine. A spool valve is within a central bore in the mixer housing and includes gas distribution openings selectively connectable to the gas delivery openings by moving the spool valve within the mixer housing using a piezoelectric actuator coupled with the spool valve by way of a pivot arm. Sealing lands of the spool valve are in an alternating arrangement with the gas distribution openings, such that at the closed position the sealing lands block the gas distribution openings from the gas delivery openings, and at the open position the respective openings are fluidly connected.

The various embodiments disclosed herein relate to a system and a method of modifying a configuration of an electrolytic reactor. In at least one embodiment, the system comprises an electrolytic reactor assembly including a plurality of electrolytic cells, the electrolytic reactor assembly being configured to operate in at least two operation modes. The system also comprises at least one switching element coupled to the electrolytic reactor assembly, a control unit, and a monitoring system coupled to the control unit, where the monitoring system is configured to monitor at least one attribute associated with the electrolytic reactor assembly. The control unit is configured to modify the configuration of the electrolytic reactor assembly between the at least two operation modes based on the at least one attribute associated with the electrolytic reactor assembly monitored by the monitoring system.

A regasification apparatus includes a closed loop heat transfer fluid circulation assembly, for the storage of the cold energy extracted from fuel during its regasification, and provides: a first tank, for containing at ambient temperature the heat transfer fluid, and an insulated second tank where the latter is kept cold; a fluid/fluid heat exchanger, defining the heating means, in which the fluid, coming out of the first tank, is placed in heat transfer with the cold branch of the pipe and therefore cooled, then stored in the second tank. From the latter departs at least one insulated branch, to supply with cold fluid at least one utility present in the aforementioned vehicle, for example an air/fluid heat exchanger located downstream an intercooler of the engine. By means of a pipe, the heat transfer fluid, heated back to ambient temperature, returns to the first tank.

Provided is a fuel-reforming device comprising: an ammonia tank (4); a reformer (5) for reforming ammonia and generating high-concentration hydrogen gas having a hydrogen content of at least 99%; a mixing tank (7) for mixing ammonia and hydrogen for temporary storage; and a control means (10) for controlling the respective supply amounts of ammonia and high-concentration hydrogen gas that are supplied to the mixing tank (7). The control means (10) calculates the combustion rate coefficient C of mixed gas with respect to a reference fuel on the basis of equation (1). Equation (1): S.sub.0=S.sub.H×C+S.sub.A×(1−C). In equation (1), S.sub.0 is the combustion rate of the reference fuel, S.sub.H is the combustion rate of hydrogen, S.sub.A is the combustion rate of ammonia, and C is the combustion rate coefficient of mixed gas. In addition, on the basis of equation (2), the control means (10) determines the volume fractions of ammonia and hydrogen that are supplied to the mixing tank. Equation (2): C=1−exp(−A×M.sub.B). In equation (2), M is the volume fraction of hydrogen in mixed gas, and A and B are constants.

An engine system includes an engine having a combustion chamber, an intake gas passage through which air to be supplied to the combustion chamber flows, an exhaust gas passage through which exhaust gas generated from the combustion chamber flows, a reformer configured to reform the fuel to generate a reformed gas containing hydrogen, a gas supply passage through which air to be supplied to the reformer flows, a bypass passage connected to the gas supply passage and the exhaust gas passage so as to bypass the reformer and through which the fuel having passed through the reformer is circulated to an upstream of the reformer, and a switching valve switched between a normal position that does not allow the fuel having passed through the reformer to flow to the bypass passage and a circulating position that allows the fuel having passed through the reformer to flow to the bypass passage.

A piston arrangement for a clean combustion engine, such as a hydrogen engine. The piston arrangement comprises a piston configured for reciprocal movement inside a cylinder having a cylinder wall, the piston having a piston head configured to face a first compartment with pressurized gas, a sealing arrangement comprising at least one sealing ring configured to be arranged to seal the piston to the cylinder wall and separating the first compartment from a second compartment, and a water channel extending from an interior of the piston to the sealing ring to provide water for lubricating the sealing ring. The piston head comprises a pumping element configured to be arranged to pressurize the water in the water channel by pressurised gas in the first compartment.

This is a utility patent application for the design of a large marine engine that is also suitable, in different configurations, for smaller marine applications and many different power generation and transportation applications. The drawings show a ten-cylinder two-stroke engine, cylinders with a 110-inch stroke and 36-inch bore, pistons, connecting rods, and a crankshaft. The pistons are driven by the combustion of liquid hydrogen and liquid oxygen ignited by a sparking system. The engine is cooled via coolant passages in the block and head and lubricated by three separate lubrication systems. It uses cryogenic fuel pumps, electronic fuel injection, and electronic actuators regulated by a remote engine control unit. It is close to a zero emissions design, with only steam, water vapor, and extremely minute quantities of burned lubricants and trace air combustion products heading up the stack.

A renewable energy generation system includes a drive motor, a flywheel in mechanical communication with the drive motor, a generator in mechanical communication with the flywheel, a charge controller in electrical communication with the generator, a plurality of charge controller switches in electrical communication with the charge controller, a plurality of batteries in electrical communication with a respective charge controller switch, and a power management module in electrical communication with the plurality of charge controller switches. The drive motor effectuates rotation of the flywheel to generate stored rotational energy which is transferred to the generator as a load is placed upon the generator to maintain a constant speed of the drive motor. The power management module selectively opens or closes a charge controller switch to permit or inhibit the flow of electrical energy to a respective battery to reduce the electrical load placed upon the generator and drive motor.

Operating a gaseous fuel engine system includes urging a mixture containing a gaseous hydrogen fuel and air into a pocket in an igniter fluidly connected to a cylinder to form an ignition charge, and igniting the ignition charge via a flame kernel formed by energizing spark electrodes of the igniter. The method further includes igniting a main charge containing the gaseous hydrogen fuel via a flame jet of the ignition charge from the igniter. The pocket is shielded from the cylinder sufficiently to form within the pocket a flow field protecting the flame kernel, while fluidly connected to the cylinder sufficiently to clear the pocket of residual combustion gases.