US 12,420,521 B2
Hydrogen tube
André Háckel, Waldeck (DE); Frank Fahrenholz, Kassel (DE); Martin Schramowski, Kassel (DE); and Siegfried Arnold, Kassel (DE)
Assigned to TI Automotive (Fuldabrück) GmbH, Fuldabrück (DE)
Filed by TI Automotive (Fuldabrück) GmbH, Fuldabrück (DE)
Filed on Nov. 30, 2022, as Appl. No. 18/071,747.
Claims priority of application No. 202021106514.1 (DE), filed on Nov. 30, 2021.
Prior Publication US 2023/0166477 A1, Jun. 1, 2023
Int. Cl. B32B 1/08 (2006.01); B32B 7/12 (2006.01); B32B 27/08 (2006.01); B32B 27/18 (2006.01); B32B 27/30 (2006.01); B32B 27/32 (2006.01); B32B 27/34 (2006.01)
CPC B32B 1/08 (2013.01) [B32B 7/12 (2013.01); B32B 27/08 (2013.01); B32B 27/18 (2013.01); B32B 27/306 (2013.01); B32B 27/322 (2013.01); B32B 27/34 (2013.01); B32B 2250/05 (2013.01); B32B 2250/24 (2013.01); B32B 2250/42 (2013.01); B32B 2307/202 (2013.01); B32B 2307/732 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A tube for guiding hydrogen, wherein the tube encloses a lumen through which hydrogen is guided, the tube comprising several layers, wherein the tube has least two barrier layers, wherein an inner barrier layer of the at least two barrier layers comprises a first plastic, wherein an outer barrier layer of the at least two barrier layers comprises a second plastic, wherein the first plastic is a vinyl alcohol plastic, the layer thickness of the inner barrier layer being less than the layer thickness of the outer barrier layer, wherein the barrier layers are separated from each other by a separating layer, the separating layer being formed of a softer material than the barrier layers, the separating layer comprising a polyamide, wherein the tube has a supporting layer, wherein the supporting layer is enclosed by the inner barrier layer, wherein the second plastic is a vinyl alcohol plastic.