Device i.e. high pressure oscillator, for testing operational strength and/or fatigue strength of high pressure components, has pressure medium exhibiting high viscosity than pressure medium provided in partial chamber

摘要

The device (1) has a piston (5) movably arranged in a cylinder (4), and a pressure chamber (6) provided between the cylinder and the piston. A pressure line (3) is emanated from the chamber to components (2). A separation device (7) e.g. separation piston (7'), is arranged within the pressure chamber. The separation device separates the pressure chamber into a partial chamber (6a) and another partial chamber (6b) connected with the pressure line. A pressure medium is provided in the partial chamber (6a) and exhibits high viscosity than a pressure medium provided in the partial chamber (6b).