Abstract: A compressed gas tank for a motor vehicle includes a metallic gas container having opposite container walls which are constructed with a profiling to increase rigidity, and at least one tie element extending across the gas container. The profiling is realized by stamping a plurality of wall portions from the plane of the container walls to assume a convex and/or concave configuration.

Abstract: An apparatus for hydraulic high-pressure forming of a sheet, the apparatus having a top tool and a bottom tool as well as at least one pressure generating unit arranged between the press ram of a mechanical press and the top tool and uses a pressurized medium from the pressure generating unit as a working fluid for hydraulic preforming of the sheet. Contact faces of the tools directly engage with the sheet surface along the clamping area thereof and act to seal off the forming area that are subjected to the working fluid solely by contact sealing.

Abstract: A device for storing compressed gas includes a cylindrical pressure vessel having inlet and outlet conduits for a cooling/heating fluid and for compressed gas. Arranged in the interior of the pressure vessel are plural storage layers which are separated from one another and contain solid matter for charging with compressed gas. The storage layers have a volume, which depends on a charging state of the storage layers with compressed gas, and are separated dust-tight from one another about their circumference. Bounding one side of each storage layer is a spring layer which assumes a filtering function with respect to the solid matter of the storage layer, wherein the solid matter in the storage layer is charged with compressed gas via the spring layer or compressed gas is discharged from the solid matter in the storage layers via the spring layer. The other opposite side of the storage layer is bounded by a gastight cooling/heating layer for passage of the cooling/heating fluid.

Abstract: An apparatus for hydraulic high-pressure forming of a sheet, the apparatus having a top tool and a bottom tool as well as at least one pressure generating unit arranged between the press ram of a mechanical press and the top tool and uses a pressurized medium from the pressure generating unit as a working fluid for hydraulic preforming of the sheet. Contact faces of the tools directly engage with the sheet surface along the clamping area thereof and act to seal off the forming area that are subjected to the working fluid solely by contact sealing.

Abstract: A compressed gas tank for a motor vehicle includes a metallic gas container having opposite container walls which are constructed with a profiling to increase rigidity, and at least one tie element extending across the gas container. The profiling is realized by stamping a plurality of wall portions from the plane of the container walls to assume a convex and/or concave configuration.