Multiple layer motor vehicle hose line
OwnerWerner Zimmer, Frank Fahrenholz +1inventors
InventorsWerner Zimmer, Frank Fahrenholz, Siegfried Arnold
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Abstract
Multi-layer motor vehicle tube for conducting at least one fluid medium, in particular for conducting of motor fuels, wherein the tube comprises at least five layers, The tube features the following layer structure, from outside to inside: an outside layer made of at least one polyamide, a first adhesion-promoting layer, a barrier layer with barrier properties, a second adhesion-promoting layer, an inside layer made of at least one thermoplastic polyurethane (TPU) and/or at least one partly aromatic polyamide (PPA). The total layer thickness of the tube amounts to 0.7 to 3 mm.
Claims18
Multi-layer motor vehicle tube for conducting at least one fluid medium, wherein the tube features at least five layers and specifically with the following layer structure, from outside to inside:
- an outer layer made substantially of at least one polyamide,
- a first adhesive layer,
- a barrier layer with barrier properties against at least one component of the fluid medium,
- a second adhesive layer, and
- an inside layer made substantially of at least one thermoplastic polyurethane (TPU) and/or at least one partly aromatic polyamide (PPA),
- wherein the total layer thickness of the tube amounts to 0.7 to 3 mm, and wherein the thickness of the first adhesive layer and/or the thickness of the second adhesive layer is less than the thickness of the barrier layer.
Dependencies are inferred from the claim text.