Ice pressure compensation element

A compensation element including a filter system configured for volume compensation for a freezing medium, the compensation element comprising:

• an elongated hollow body with a first end and a second end, at the first end, a coupling area being situated which closes the hollow body, and the second end being open;
• wherein the compensation element has an elastically reversible configuration to return back to an initial state after a deformation from the initial state that has taken place due to ice formation by the medium, and
• wherein the hollow body has a cross section with a circumferentially closed outer area, and includes an inner structure that extends in a longitudinal direction and that is situated at an inner circumference of the outer area.

A compensation element including a filter system configured for volume compensation for a freezing medium, the compensation element comprising:

• an elongated hollow body with a first end and a second end, at the first end, a coupling area being situated which closes the hollow body, and the second end being open;
• wherein the compensation element has an elastically reversible configuration to return back to an initial state after a deformation from the initial state that has taken place due to ice formation by the medium, and
• wherein the hollow body has a cross section with a circumferentially closed outer area, the hollow body including three flat areas at the outer area and three cylindrical areas at the outer area that are situated in alternation along the circumference, and have the same arc length along the circumference of the hollow body, the arc length being 60°.