US 12,434,556 B2
Fuel tank with filler neck
Benjamin Makelke, Bargau (DE); Harry Wiese, Moegglingen (DE); and Steffen Zanek, Schwäbisch Gmünd (DE)
Assigned to MAGNA Energy Storage Systems GmbH Werk Schwäbisch Gmünd, Schwäbisch Gmünd (DE)
Filed by MAGNA Energy Storage Systems GmbH Werk Schwäbisch Gmünd, Schwäbisch Gmünd (DE)
Filed on Jun. 15, 2023, as Appl. No. 18/335,321.
Prior Publication US 2024/0416745 A1, Dec. 19, 2024
Int. Cl. B60K 15/04 (2006.01)
CPC B60K 15/04 (2013.01) [B60K 2015/047 (2013.01); B60K 2015/0477 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A fuel tank for a motor vehicle, the fuel tank comprising:
a tank having an external casing with an opening into an interior of the tank,
a deformed zone surrounding the opening, the zone formed by embossing a region of the external casing such that the zone is concavely recessed toward the tank interior and inwardly flanged at the opening;
a filler neck inserted into the opening of the external casing such that an inserted end of the filler neck is in contact with a surface of the flange; and
the flange is welded to the deformed zone via a weld seam that is accessible from the tank exterior and circumferentially encircles the opening.