Method and device for temperature limitation

Between a body (1) and a cover (2), the heat exchange is to be reduced when exceeding a certain temperature. It is a chamber (3) installed, which is filled with a liquid. The chamber is tightly connected to a flexible expansion tank (4). Exceeds the temperature of one of the two bodies and thus also within the chamber, the boiling temperature of the charged liquid, this evaporates and condenses in the connected expansion tank. As a result, the heat conduction is suppressed by the liquid between the two bodies and thereby significantly lower than in the filled chamber. If the chamber temperature drops below the boiling point of the liquid, it flows back again and restores good heat conduction.