Abstract: A rotary pump can pump a liquid for pollution control of exhaust gases in a system on board a vehicle and can include a rotor and a stator that are positioned in a casing. The casing can include a wall delimiting a main internal volume and an integral outlet pipe for the pump. A pressure sensor can be positioned within the main internal volume of the casing.

Abstract: A flange (101) for holding a quantity of fluid within a tank, such flange being equipped with a heating element comprising at least one resistive wire (102) for conducting an electrical current and dissipating heat as an effect of said current, wherein the heating element further comprises guiding means (103), and wherein the at least one resistive wire (102) is guided at a plurality of separate locations along its length by the guiding means (103) to form a heating surface, wherein a first part of the heating surface is present inside the flange (101) and a second part of the heating surface is present outside the flange (101).

Abstract: A system and a process for storing an additive solution and injecting it into the exhaust gases of an internal combustion engine. The system comprises at least one tank for storing the additive, one pump equipped with an inlet and an outlet and that is capable of generating a direct flow (in injection mode) or a reverse flow (in drawing off mode), at least two additive solution suction points, and an injector, wherein a first suction point is connected to the pump inlet and is only active when the pump operates in injection mode, and wherein the second suction point is connected to the pump outlet and is only active when the pump operates in drawing off mode.

Abstract: The invention concerns a procedure for controlling a metering device for metering fuel into the exhaust gas duct of a combustion engine for the regeneration of a particle filter, whereby the metering device supplies the fuel to the exhaust gas duct over a security valve, a first fuel pipe, a metering valve, a second fuel pipe and an injection check valve and whereby the pressure of the fuel is determined between the metering valve and the injection check valve in the second fuel pipe. It is thereby provided that an opening pressure of the injection check valve is determined from the pressure course between the metering valve and the injection check valve.

Abstract: A system and a process for storing an additive solution and injecting it into the exhaust gases of an internal combustion engine. The system comprises at least one tank for storing the additive, one pump equipped with an inlet and an outlet and that is capable of generating a direct flow (in injection mode) or a reverse flow (in drawing off mode), at least two additive solution suction points, and an injector, wherein a first suction point is connected to the pump inlet and is only active when the pump operates in injection mode, and wherein the second suction point is connected to the pump outlet and is only active when the pump operates in drawing off mode.

Abstract: Rotary pump intended to pump a liquid for the pollution control of exhaust gases in a system on board a vehicle and comprising a rotor (4), a stator (5) that are positioned in a casing comprising a wall delimiting a main internal volume and integrating an outlet pipe for the pump, and a pressure sensor (2) which is positioned within the main internal volume of the casing.

Abstract: A heating system for a vehicular fluid tank (100), said heating system comprising at least one resistive element (110) and a control unit (120) adapted to direct an electric current through said at least one resistive element (110), wherein said control unit (120) is adapted to vary said current according to a pulse width modulation scheme.

Abstract: A flange (101) for holding a quantity of fluid within a tank, such flange being equipped with a heating element comprising at least one resistive wire (102) for conducting an electrical current and dissipating heat as an effect of said current, wherein the heating element further comprises guiding means (103), and wherein the at least one resistive wire (102) is guided at a plurality of separate locations along its length by the guiding means (103) to form a heating surface, wherein a first part of the heating surface is present inside the flange (101) and a second part of the heating surface is present outside the flange (101).

Abstract: The invention relates to an apparatus for metering at least one medium for reducing pollutant levels in an exhaust system, in particular for the introduction of fuel into an exhaust tract for regenerating an element for reducing pollutant levels in the exhaust tract. The apparatus includes at least one injection valve, in particular, a pressure-regulated injection valve and at least one supply line for supplying the pollutant-reducing medium to the injection valve. At least one pressure damper is provided in the supply line upstream of the injection valve.

Abstract: The invention concerns a procedure for controlling a metering device for metering fuel into the exhaust gas duct of a combustion engine for the regeneration of a particle filter, whereby the metering device supplies the fuel to the exhaust gas duct over a security valve, a first fuel pipe, a metering valve, a second fuel pipe and an injection check valve and whereby the pressure of the fuel is determined between the metering valve and the injection check valve in the second fuel pipe. It is thereby provided that an opening pressure of the injection check valve is determined from the pressure course between the metering valve and the injection check valve.