Patent ID: 6823884
Filing Date: 2004-11-30
Classification: F15B,Y10S,Y10T

Abstract:
A process for increasing the internal pressure of a hollow body to a specified set internal pressure with a specified tolerance while using a pressure generator connected with the hollow body, whereby prior to the increase, the actual internal pressure of the hollow body is ascertained and during the increase a pressure generated by the pressure generator is ascertained, and wherein several pressure-increasing steps are conducted, whereby each pressure-increasing step comprises:increasing the internal pressure of the hollow body by an amount that is smaller than or equal to a specified upper limit for a pressure increase in the hollow body; calculating the amount of the pressure increase brought about by the pressure-increasing step by using the pressure generated by the pressure generator; wherein conducting of said pressure-increasing steps is terminated as soon as a sum of the calculations based on the actual internal pressure prior to the increase and the amounts of all previously conducted pressure increases deviates from the set internal pressure by at most the specified tolerance.