A water tank device for an internal combustion engine with water injection, includes a water tank with an internal volume, which is at least partly delimited by a tank wall and in which a liquid is stored for the water injection in the internal combustion engine, and a filter device, which is designed to clean fuel vapor from a fuel tank of the internal combustion engine. The filter device has a heat transfer surface. The filter device is closed so as to be fluid-tight against the liquid which can be received in the internal volume. The filter device is arranged on the water tank such that a heat exchange with the liquid which can be stored in the water tank is facilitated via the heat transfer surface.

An air compression system includes an internal combustion engine operable to produce a power output in response to combustion of a fuel-air mixture, and an air compressor driven by the internal combustion engine and operable to draw in atmospheric air and discharge a mixed flow of compressed air and water. A water injection system supplies water to the fuel-air mixture and into the internal combustion engine, a separator assembly in communication with the air compressor separates a portion of the water from the compressed air, and a water passageway interconnects the separator assembly and the water injection system such that the air compressor supplies water to the water injection system.

An air compression system includes an internal combustion engine operable to produce a power output in response to combustion of a fuel-air mixture, and an air compressor driven by the internal combustion engine and operable to draw in atmospheric air and discharge a mixed flow of compressed air and water. A water injection system supplies water to the fuel-air mixture and into the internal combustion engine, a separator assembly in communication with the air compressor separates a portion of the water from the compressed air, and a water passageway interconnects the separator assembly and the water injection system such that the air compressor supplies water to the water injection system.

A method is provided for operating an internal combustion engine in a motor vehicle, The internal combustion engine has at least one cylinder with a combustion chamber, a water injection unit with a tank and at least one injection nozzle for directly or indirectly injecting water into the combustion chamber, an exhaust gas system with at least one exhaust gas catalytic converter and a particulate filter device which has a particulate filter for filtering particles out of an exhaust gas flow guided in the exhaust gas system. A control unit is provide for a state monitoring process and for controlling the combustion in the cylinder.

An internal combustion engine (2) which comprises at least one cylinder provided with a combustion chamber, in which, following the combustion, exhaust gases are generated; an exhaust duct, which is flown through by the exhaust gases;

and a water-based operating liquid system which includes a tank, which is designed to contain a quantity of water-based operating liquid, and a heating device, which is coupled to the tank and is designed to heat the water-based operating liquid. In particular, the heating device comprises a heating chamber, which surrounds a portion of the exhaust duct, comprises an inlet opening designed to receive air from the outside, is configured to allow heat to be transferred from the walls of the exhaust duct to the air received from the outside and comprises an outlet opening for the heated air; and a heat exchanger, which receives the heated air and is thermally coupled to the tank so as to release part of the heat owned by the heated air to the water-based operating liquid contained in the tank.

The present invention relates to a heater for a vehicle system for injecting anaqueous solution in an air intake line upstream of a combustion chamber of aninternal combustion engine, or in the combustion chamber of the internal combustion engine, said heater comprising at least one flexible part which comprises at least one metallic resistive track embedded in an insulating material, said insulating material comprising at least one antimicrobial compound and/or being coated by at least one layer containing at least one antimicrobial compound. The invention relates also to a vehicle system for injecting an aqueous solution in an air intake line upstream of a combustion chamber of an internal combustion engine, or in the combustion chamber of the internal combustion engine comprising said heater.

A device for injecting water in a vehicle includes a water container which is connected to a number of injection nozzles via a supply line, with a pumping operation for pumping water from the water container to the injection nozzles via the supply line and with a stationary operation in which the supply line is a closed line system. The supply line is equipped with a blocking device which is open in the pumping operation and which is closed in the stationary operation in order to block the supply line and keep same dry. Water is prevented from being suctioned into the supply line and the injection nozzles at low temperatures as a result of a pressure decrease.

A device for injecting water in a vehicle includes a water container which is connected to a number of injection nozzles via a supply line, with a pumping operation for pumping water from the water container to the injection nozzles via the supply line and with a stationary operation in which the supply line is a closed line system. The supply line is equipped with a blocking device which is open in the pumping operation and which is closed in the stationary operation in order to block the supply line and keep same dry. Water is prevented from being suctioned into the supply line and the injection nozzles at low temperatures as a result of a pressure decrease.

A system for feeding water to at least one combustion chamber in an internal combustion engine having: a tank designed to contain a quantity of water; a feeding duct; a pump designed to draw water from the tank and to pump pressurised water into the feeding duct; and at least one silver-containing body which is contained in the tank in contact with the water.

A system for feeding water to at least one combustion chamber in an internal combustion engine having: a tank designed to contain a quantity of water; a feeding duct; a pump designed to draw water from the tank and to pump pressurised water into the feeding duct; and at least one silver-containing body which is contained in the tank in contact with the water.