Water delivery system for delivering demineralized water to a combustion engine, and demineralization apparatus

A water delivery system for delivering demineralized water to a consuming unit in a motor vehicle, in particular to a combustion engine, encompassing:

• a water tank having a filling opening;
• a first aspiration line;
• a first water pump;
• a discharge line;
• a discharge apparatus;
• a demineralization apparatus for demineralizing water,
• the first water pump being fluidically connected via the first aspiration line to an internal volume of the water tank;
• the discharge apparatus being fluidically connected via the discharge line to the first water pump,
• wherein
• a) the water delivery system encompasses a demineralization circuit that comprises a second aspiration line, a second water pump, a pump line, and a return line, the second water pump being fluidically connected via the second aspiration line to an internal volume of the water tank;
• an inlet of the demineralization apparatus being fluidically connected via the pump line to the second water pump;
• and an outlet of the demineralization apparatus being fluidically connected via the return line to the internal volume of the water tank;
• or
• b) the water delivery system encompasses a demineralization arm that comprises a three-way valve, a pump line, and a return line, a first discharge line sub-portion of the discharge line fluidically connecting the three-way valve to the first water pump;
• a second discharge line sub-portion of the discharge line fluidically connecting the three-way valve to the discharge apparatus;
• the pump line fluidically connecting an inlet of the demineralization apparatus to the three-way valve;
• and an outlet of the demineralization apparatus being fluidically connected via the return line to the internal volume of the water tank;
• or
• c) the water delivery system encompasses a filler neck that fluidically connects the filling opening to the internal volume of the water tank;
• and the demineralization apparatus is arranged in the filler neck;
• or
• d) the water delivery system encompasses, downstream from the first water pump, a demineralization bypass that comprises a first branch line and a second branch line, an inlet of the demineralization apparatus being fluidically connected by the first branch line to a first branching point of the discharge line downstream from the first water pump;
• and an outlet of the demineralization apparatus being fluidically connected by the second branch line to a second branching point of the discharge line downstream from the first branching point;
• or
• e) the demineralization apparatus divides the internal volume of the water tank into two separate sub-volumes;
• or
• f) the water delivery system encompasses, upstream from the first water pump, a demineralization arm that comprises a three-way valve, a pump line, a direct aspiration line, an intermediate line, and a demineralization aspiration line, the pump line fluidically connecting the three-way valve to the first water pump;
• the direct aspiration line fluidically connecting the three-way valve directly to the internal volume of the water tank;
• the intermediate line fluidically connecting the three-way valve to an outlet of the demineralization apparatus;
• and the demineralization aspiration line fluidically connecting an inlet of the demineralization apparatus directly to the internal volume of the water tank;
• the first aspiration line being embodied as the direct aspiration line.

A demineralization apparatus encompassing:

• an inlet;
• an outlet;
• a fluid flow channel extending between the inlet and the outlet;
• a baffle plate arranged transversely to a principal direction of extent of the fluid flow channel,
• wherein the baffle plate is shaped in such a way that the baffle plate constitutes an edge portion of a passthrough opening in the fluid flow channel, the opening cross section of which opening is smaller than an opening cross section of the fluid flow channel upstream from the baffle plate.