| 摘要 |
Described is a high-pressure hydraulic unit, in particular a hydropneumatic pressure intensifier, with a pressure chamber (3) which is acted on by alternating pressure and from where a piston (2) is acted on, the piston acting via a piston rod (4) on a point outside the hydraulic unit. The high pressure is generated in particular by means of an additional piston (15) and the pressure in the chamber (3) is measured by a pressure-sensing element which seals the chamber (3) off from the atmosphere. A piezoelectric device or a spring-biased indicator is particularly suitable for use as the pressure-sensing element. |
