Combination tank

1. Combination tank having a double-walled inner container for temperature-insulated accommodation of a cryogenic fluid, which inner container has an approximately circular cylindrical cross-section and is closed off with end-side caps, wherein an outer container for accommodating at least one operating material is configured around the inner container, which outer container has a jacket having an approximately rectangular cross-section and end walls supported on the inner container, which end walls either sit in gussets that remain between inner container and jacket, or are penetrated by the caps of the inner container.

2. Combination tank according to claim 1 , wherein at least one of the end walls is connected with the inner container and the jacket by means of gluing or welding.

3. Combination tank according to claim 1 , wherein an outer wall of the inner container, the jacket of the outer container, and the end walls are produced from metal.

4. Combination tank according to claim 1 , wherein the jacket is formed of one piece and closed by means of a longitudinal weld seam.

5. Combination tank according to claim 1 , wherein the jacket is composed of two, three or four shaped parts and closed by means of longitudinal weld seams, in each instance.

6. Combination tank having a double-walled inner container for temperature-insulated accommodation of a cryogenic fluid, which inner container has an approximately circular cylindrical cross-section and is closed off with end-side caps, wherein an outer container for accommodating at least one operating material is configured around the inner container, which outer container has a jacket having an approximately rectangular cross-section and end walls supported on the inner container, which end walls either sit in gussets that remain between inner container and jacket, or are touched or penetrated by the caps of the inner container, wherein the jacket is formed of one piece and closed by means of a longitudinal weld seam, and wherein the said longitudinal weld seam is structured as a triple-sheet weld seam, by means of which the jacket is simultaneously welded to the inner container.

7. Combination tank having a double-walled inner container for temperature-insulated accommodation of a cryogenic fluid, which inner container has an approximately circular cylindrical cross-section and is closed off with end-side caps, wherein an outer container for accommodating at least one operating material is configured around the inner container, which outer container has a jacket having an approximately rectangular cross-section and end walls supported on the inner container, which end walls either sit in gussets that remain between inner container and jacket, or are touched or penetrated by the caps of the inner container, wherein the jacket is composed of two, three or four shaped parts and closed by means of longitudinal weld seams, in each instance, and wherein the said longitudinal weld seams are structured as triple-sheet weld seams, by means of which the jacket is simultaneously welded to the inner container.

8. Combination tank having a double-walled inner container for temperature-insulated accommodation of a cryogenic fluid, which inner container has an approximately circular cylindrical cross-section and is closed off with end-side caps, wherein an outer container for accommodating at least one operating material is configured around the inner container, which outer container has a jacket having an approximately rectangular cross-section and end walls supported on the inner container, which end walls either sit in gussets that remain between inner container and jacket, or are touched or penetrated by the caps of the inner container, wherein the jacket has at least one bead that runs in a circumferential direction and is shaped outward, which bead bridges a region in which the jacket otherwise touches the inner container.

9. Combination tank according to claim 8 , wherein a closable opening is configured on a top of the outer container, which opening opens into the bead.

10. Combination tank according to claim 9 , wherein a fill-level probe is introduced into the bead by way of the said opening.

11. Combination tank according to claim 1 , wherein a closable opening is configured on a top of the outer container, which opening opens into a space between inner container, jacket, and end wall.

12. Combination tank according to claim 11 , wherein a fill-level probe is introduced into the space by way of the said opening.

13. Combination tank according to claim 1 , wherein a connector pipe having a closable opening is formed on an end wall, which connector pipe opens into the outer container.

14. Combination tank according to claim 13 , wherein a fill-level probe is introduced into the connector pipe by way of the said opening.

15. Combination tank according to claim 1 , wherein the jacket projects beyond the inner container in a longitudinal direction, to form a further container, and is closed off with an end lid.

16. Combination tank according to claim 15 , wherein the jacket has a closable opening in a region of the further container.

17. Combination tank according to claim 16 , wherein a fill-level probe is introduced into the further container by way of the said opening.

18. Combination tank according to claim 15 , wherein the further container is connected with the outer container by way of connection openings penetrating the end wall that lies in between.

19. Combination tank having a double-walled inner container for temperature-insulated accommodation of a cryogenic fluid, which inner container has an approximately circular cylindrical cross-section and is closed off with end-side caps, wherein an outer container for accommodating at least one operating material is configured around the inner container, which outer container has a jacket having an approximately rectangular cross-section and end walls supported on the inner container, which end walls either sit in gussets that remain between inner container and jacket, or are touched or penetrated by the caps of the inner container, wherein a tank sump is disposed in the bottom of the outer container, into which sump an extraction line combined with a fill-level probe projects.