Lightweight expansion vessels
AssigneeBASF SE
InventorsUlrich Endemann, May Michael Brockmueller, Hans Barthelmess, Harald Kroeger, Angelika Homes
Life of this patent
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Abstract
The invention relates to an expansion vessel for closed heating, cooling, drinking-water, or solar systems, with two spaces separated from one another via a separator, wherein the casing of the vessel i) has an inner surface composed of polyethylene terephthalate, polyamide, polybutylene terephthalate, polyacetal, polyvinyl chloride, polyacrylonitrile, polystyrene copolymer, ethylene-vinyl alcohol, polyvinyl alcohol, polyether sulfone, or polysulfone, and ii) has a wound outer surface composed of oriented fibers.
Claims12
1-10. (canceled)
An expansion vessel for closed heating, cooling, drinking-water, or solar systems, the expansion vessel having two interior spaces separated from one another via a separator and comprising:
- a casing having an inner surface composed of a thermorplastic and an outer surface composed of a winding of oriented fibers.
An expansion vessel comprising:
- an extruded plastics pipe composed of a thermoplastic, the pipe having two interior spaces separated form one another by a separator;
- a winding of oriented fibers surrounding the pipe;
- and
- two injection-molded end caps, each end cap sealing respective ends of the pipe.
A process of producing a casing of an expansion vessel, the process comprising:
- producing a pipe by means of extruding a thermoplastic material;
- surrounding the pipe with a winding having a specific fiber orientation, and
- coating the pipe with one of an outer layer, impregnation layer, color layer, or protective layer.
A process of producing a casing of an expansion vessel, the process comprising:
- producing a pipe by means of extruding a thermoplastic material;
- surrounding the pipe with a winding having a specific fiber orientation, and
- sealing each end of the pipe with an injection-molded end cap.
Dependencies are inferred from the claim text.