A system and method for discharging condensation from an engine system is disclosed. The system includes a drainage pathway from an upstream body that collects water to a downstream portion of the air intake system. A controller may initiate a draining event upon determining a threshold amount of water has been collected in the upstream body.

A hydrogen intake assembly for a hydrogen internal combustion engine characterized in that the hydrogen intake assembly includes at least one air intake manifold comprising an air intake pipe comprising at least one air inlet and air outlets, air intake runners comprising air inlets and air outlets, a spacer having a wall defining an inner chamber receiving a mixture of air, water and hydrogen and comprising air inlets and mixture outlets delivering said mixture, a water rail comprising at least one water inlet and water outlets, said water outlets being embedded in the wall of the spacer and a hydrogen rail comprising at least a hydrogen inlet and hydrogen outlets.

A method for reducing NOx emissions during operation of an internal combustion engine in commerce which, when burning hydrocarbon fuel as a primary fuel, in the absence of any secondary fuel, has a characteristic stoichiometric ration. The method includes the following: in the absence of electrolytic activity, providing and entraining a quenching species in a gaseous medium and then interacting the quenching species with constituents present during oxidation of the primary fuel in a combustion chamber of the engine.

The invention relates to an arrangement (100) having a liquid tank (10), at least one line (11, 11a, 11b) connected to the liquid tank (10), through which liquid (F) can be transported from the liquid tank (10), and a pump (13) connected to the at least one line (11, 11a, 11b) for conveying the liquid (F) from the liquid tank (10) through the at least one line (11, 11a, 11b) in the direction of flow (R) during an operating phase, wherein a pressure accumulator (14) connected to the at least one line (11, 11a, 11b) is provided, by means of which a pressure can be generated in the at least one line (11, 11a, 11b) outside of the operating phase, and a ventilating element (15, 15a, 15b), which can be transitioned into an open position and into a closed position, is arranged along the at least one line (11, 11a, 11b), wherein, outside of the operating phase, a pressure impulse within the at least one line (11, 11a, 11b) can be generated by the pressure generated by the pressure accumulator (14) and a subsequent transition of the ventilating element (15, 15a, 15b) into the open position in order to drain the line (11, 11a, 11b) of the fluid (F).

A water-conveying module for injecting water into a combustion chamber of an internal combustion engine, having a conveying unit, which has a pump for conveying the water from a tank. The water can be conveyed by the pump to an injection point along a dosing line. The conveying unit has a water outlet through which water is conveyed out of the conveying unit. The water outlet is formed by a connection plug onto which the dosing line can be plugged, Water can be conveyed from the conveying unit into the dosing line along the connection plug that has a section which can be flowed through by the water and which is part of the fluid line from the conveying unit to the dosing line.

A solenoid based air ventilation valve (24) comprises of a housing (1), a solenoid coil (2), a flexible diaphragm (6), a plunger (8), a filter inlet (28) and a filter outlet assembly (100). The flexible diaphragm (6) is over molded with the plunger (8) to seal the flexible diaphragm (6) against the high pressure during closed position and has an incorporated O-ring (102) with flexible diaphragm (6) to stop the leakage from the valve (24). The filter outer assembly (100) is fixed to the inlet (25) and outlet port (26) to prevent suspended contamination particles in the valve (24). The valve (24) has a press fitted metal insert/flow controller (55) to achieve a low flow rate. Further, the air ventilation valve (24) allows a low leakage limit, low flow rate to serve high opening and working pressure to work in both over pressure and under pressure (vacuum) conditions.

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 method for determining an air mass in an air separator of a water direct injection system for injecting a water/fuel mixture into a combustion chamber of an engine of a motor vehicle. The air separator is disposed between a water pump for delivering water of the water/fuel mixture and a high-pressure pump for feeding the water/fuel mixture to a high-pressure injector for injecting the water/fuel mixture into the combustion chamber. The method includes increasing a pressure of the water from a first pressure value to a second pressure value by the water pump, determining a water volume delivered by the water pump during the increasing of the pressure of the water by the water pump, and determining the air mass in the air separator on a basis of the determined water volume delivered by the water pump.

Embodiments for diagnosing a humidity sensor are provided. One example method comprises, responsive to a humidity sensor test cycle, pumping air conditioning and windshield washer gas flows past a humidity sensor, and indicating humidity sensor degradation based on a response of the humidity sensor to the air conditioning and windshield washer gas flows. In this way, degradation of the humidity sensor may be indicated if the humidity sensed by the humidity sensor does not change responsive to the humidity sensor test cycle being initiated.

A method and device of preparing an emulsion comprising a first liquid and a second liquid, said method comprising the step of dispersing the first liquid into the second liquid, characterized in that the method comprises: passing the first liquid through an injection nozzle (108) for creating a spray of droplets of the first liquid, and injecting thus created droplets of first liquid into the second liquid such that Q, where Q is equal to the square of the speed of the droplets, is at least 225 m.sup.2/s.sup.2; wherein W, wherein W is sg*Q*d divided by St with sg being the specific gravity of the first liquid in kg/m.sup.3, d being the mean Sauter droplet diameter in meter of the spray leaving the injection nozzle in air, and St being the surface tension of the first liquid in Newton/meter; is at least 250 kg*m/N*s.sup.2.