Device for providing a liquid additive
A device for providing a liquid additive, including at least one metallic insert, which is coated, at least in sections, with a plastic coating made of polyethylene (PE). At least one plastic structure made of a high-density polyethylene (HD-PE) or polypropylene (PP) is sprayed onto the plastic coating.
1. A device for supplying a liquid additive, comprising:
a delivery unit for supplying liquid additive;
a plastics coating;
at least one metallic insert completely coated with the plastics coating;
a housing, the at least one metallic insert forming at least a part of the housing;
at least one plastics structure injection moulded onto the plastics coating such that the plastics coating is surrounded by the at least one plastics structure; and
a tank wall, the at least one plastics structure forming at least a portion of the tank wall;
wherein the delivery unit for liquid additive is located in the housing.
2. The device for supplying a liquid additive of claim 1 , further comprising a heating element, wherein the at least one metallic insert is connected to the heating element in heat-conducting fashion.
3. The device for supplying a liquid additive of claim 1 , the plastics coating further comprising a coating thickness between 50 μm and 500 μm.
4. The device for supplying a liquid additive of claim 1 , wherein the at least one metallic insert is composed of aluminium.
5. The device for supplying a liquid additive according to claim 1 , wherein the plastics coating is composed of polyethylene (PE).
6. The device for supplying a liquid additive according to claim 1 , the at least one plastics structure being made of a material selected from the group consisting of high-density polyethylene (HD-PE) and polypropylene (PP).
7. The device for supplying a liquid additive according to claim 1 , wherein the device for supplying liquid additive is used with an exhaust-gas treatment device having an SCR catalytic converter, and the SCR catalytic converter is used for the purification of exhaust gases of an internal combustion engine.
8. A device for supplying a liquid additive, comprising:
a plastics coating;
at least one inlay completely coated with the plastics coating;
at least one plastics structure moulded onto the plastics coating such that the plastics coating is surrounded by the at least one plastics structure;
a housing, the at least one plastics structure forming at least a portion of the housing;
a delivery unit for supplying liquid additive, the delivery unit for liquid additive being located in the housing;
a tank wall, the at least one plastics structure forming at least a portion of the tank wall;
wherein the housing is injection moulded around the plastics coating.
9. The device for supplying a liquid additive of claim 8 , the at least one inlay further comprising at least one metallic insert.
10. The device for supplying a liquid additive of claim 9 , wherein the at least one metallic insert is composed of aluminium.
11. The device for supplying a liquid additive of claim 8 , the plastics coating further comprising a coating thickness between 50 μm and 500 μm.
12. The device for supplying a liquid additive according to claim 8 , wherein the plastics coating is composed of polyethylene (PE).
13. The device for supplying a liquid additive according to claim 8 , the at least one plastics structure being made of a material selected from the group consisting of high-density polyethylene (HD-PE) and polypropylene (PP).
14. The device for supplying a liquid additive according to claim 8 , wherein the device for supplying liquid additive is used with an exhaust-gas treatment device having an SCR catalytic converter, and the SCR catalytic converter is used for the purification of exhaust gases of an internal combustion engine.