An engine system is provided, which includes an engine configured to generate a motive force for a vehicle by combusting a mixture gas of fuel and intake air, a water injector configured to inject heated water into a combustion chamber of the engine, and a controller configured to control the water injector to inject the water into the combustion chamber during an expansion stroke of the engine. The controller acquires a demanded engine load of the engine, and controls the water injector to increase an amount of water injection when the demanded engine load is within a first-load range, compared to when the demanded engine load is within a second-load range where the engine load is higher than in the first-load range.

An engine system is provided, which includes an engine configured to generate a motive force for a vehicle by combusting a mixture gas of fuel and intake air, a water injector configured to inject heated water into a combustion chamber of the engine, and a controller configured to control the water injector to inject the water into the combustion chamber during an expansion stroke of the engine. The controller acquires a demanded engine load of the engine, and controls the water injector to retard a start timing of the water injection when the demanded engine load is within a first-load range, compared to when the demanded engine load is within a second-load range where the engine load is lower than in the first-load range.

The present subject matter provides a device and a method for injecting non-combustible fluid into an internal combustion. In order to reduce the non-combustible fluid consumption, the fluid to be injected is heated to a predefined temperature which improves the spray characteristics, reduces wall wetting and leads to a better vaporization of the fluid in the combustion chamber.

The present subject-matter provides a method to inject a non-combustible fluid, most preferably water, into an internal combustion engine, as well as a corresponding controller 12 and a computer program product for carrying out the method by means of a computer. It is a particular technical advantage of the claimed subject-matter that it allows for suppressing knocking in an internal combustion engine without any drawbacks regarding exhaust gas emissions. This advantage is achieved by avoiding collision of fuel and water spray when injecting both fluids directly into the cylinder 100.

The hydrogen production system for internal combustion engines includes an intake air scoop, a vacuum block having an air input port system for receiving air from the intake air scoop, a water reservoir connected to the vacuum block for providing water to be mixed with the air in the vacuum block, at least one primary generator assembly with an inlet port for receiving the air/water vapor mixture from the vacuum block and producing a mixture of hydrogen, produced oxygen, and fine hydrogen production vapor from a partially oxidized water fog, and a plurality of secondary hydrogen generator assemblies connected to the primary generator assembly for receiving this mixture. The engine vacuum draws this mixture into the intake manifold to provide an ideal fuel mixture for the engine.

An internal combustion engine is equipped with a water injector for cooling the internal combustion engine by a spray of atomized water into the intake track or combustion chamber prior to ignition. The atomized water spray may be in the intake manifold or directly in the cylinder. The water is injected at a volume of between a ratio of about 95% fuel to about 5% water and about 50% fuel and about 50% water. The temperature of the internal combustion engine is maintained at between about 95° C. and about 200° C. during operation.

Injection method and system for the injection of water in an internal combustion engine; the following steps are substantially comprised: operating, when the internal combustion engine is turned on, a reversible pump in order to suck water from a tank and feed the water under pressure to an injector through a feeding duct; cyclically opening, when the internal combustion engine is turned on, the injector in order to inject the water towards at least one cylinder of the internal combustion engine; and draining the water, when the internal combustion engine is turned off, from the injector and the feeding duct by using a release valve connecting the feeding duct to the outside.

A spark-ignition internal combustion engine has an air intake tract for supplying fresh air to a combustion chamber of the spark-ignition internal combustion engine, an exhaust tract for discharging exhaust gases from the combustion chamber, and a urea introduction device having a urea injection nozzle for introducing an aqueous urea solution into the combustion chamber. The urea injection nozzle is disposed in the combustion chamber or upstream of the combustion chamber in relation to an air flow from the air intake tract into the combustion chamber.

An internal combustion engine is equipped with a water injector for cooling the internal combustion engine by a spray of atomized water into the intake track or combustion chamber prior to ignition. The atomized water spray may be in the intake manifold or directly in the cylinder. The water is injected at a volume of between a ratio of about 95% fuel to about 5% water and about 50% fuel and about 50% water. The temperature of the internal combustion engine is maintained at between about 95° C. and about 200° C. during operation.

An apparatus and process for preparing a water/diesel oil micro-emulsion including a diesel oil feeding unit, an emulsifying composition feeding unit, a water feeding unit, and a mixing tank in fluid communication therewith. A duct extends along main direction (X-X) and presents an inlet opening, outlet nozzle, and a cone shaped septum coaxial with respect to the main direction (X-X) and tapers towards the outlet nozzle. A plurality of holes is in the conical wall of the septum and a plurality of lamellae is arranged in the duct downstream of the septum. The plurality of lamellae creates a plurality of small chambers. Holes and the small chambers delimit a labyrinth passageway for liquid flowing through the duct towards the outlet nozzle. A batch is recirculated through the mixing tank and a conduit including a mixing device and then the fuel micro-emulsion batch is discharged.