Fuel tank with stiffening device

A fuel tank comprising:

• a container wall having at least two opposite wall sections;
• and
• a stiffening device situated between the two opposite wall sections, wherein the stiffening device has at least one connecting strut, each end of which has a strut profile section, which engages with a complementary wall profile section formed unitarily from the container wall in each on the two opposite wall sections of the container wall in a tension-resistant manner in such a way that the connecting strut absorbs compressive forces acting on the container wall, wherein the complementary wall profile sections of the two opposite wall sections of the container wall have an under-cut section;
• wherein each strut profile section at the ends of the stiffening device face in a lateral direction such that strut profile sections are connected to the complementary wall profile sections of the container by laterally displacing the stiffening device in the lateral direction such that the strut profile sections mate with the complementary wall profile sections, wherein the strut profile sections are U-shaped with inwardly projecting feet at the ends of the U-shape, the strut profile sections extending around an exterior of the wall profile section such that the feet project into the under-cut section of the wall profile section when the strut is connected to the container wall;
• wherein the complementary wall profile sections are each supported by a shaping element engaged with the container wall in an area of the complementary wall profile section, the shaping element being positioned against an exterior surface of the container wall such that the wall profile sections project inwardly into the container and relative to an interior surface of a surrounding container wall portion, and wherein the under-cut section is created during a shaping of the opposite wall sections by positioning the shaping element against the container wall from the outside of the tank.

A fuel tank comprising:

• a container wall having at least two opposite wall sections;
• and
• a stiffening device situated between the two opposite wall sections, wherein the stiffening device has at least one connecting strut, each end of which has a strut profile section, which engages with a complementary wall profile section formed unitarily from the container wall in each on the two opposite wall sections of the container wall in a tension-resistant manner in such a way that the connecting strut absorbs compressive forces acting on the container wall;
• wherein each strut profile section at the ends of the stiffening device face in a lateral direction such that strut profile sections are connected to the complementary wall profile sections of the container wall by laterally displacing the stiffening device in the lateral direction such that the strut profile sections mate with the complementary wall profile sections;
• wherein the complementary wall profile sections are each supported by a shaping element engaged with the container wall in an area of the complementary wall profile section, the shaping element being positioned against an exterior surface of the container wall such that the wall profile sections project inwardly into the container and relative to an interior surface of a surrounding container wall portion, and wherein the under-cut section is created during a shaping of the opposite wall sections by positioning the shaping element against the container wall from the outside of the tank;
• wherein the strut profile sections of the at least one connecting strut include a detachable securing element, which prevents the removal of the strut profile sections from the complementary wall profile sections of the opposite wall sections of the container wall.