| 摘要 |
Fluidic amplifier, particularly a hydraulic linear amplifier for converting a low-energy rotary movement of a control member into a linear setting movement of the piston rod of an operating piston, wherein: the control member is connected with a threaded spindle whose free end extends into an axial bore in the piston rod of the operating piston and mates with a spindle nut provided in the axial bore; the pressure fluid for charging the operating piston to produce the setting movement of the piston rod is controllable by means of an axial deflection of the control piston of a control valve, which deflection is effected by the control member and the threading of the threaded spindle into the spindle nut, and this setting movement causes the control piston to be repositioned to its starting position. A protective device is provided within the amplifier for the automatic separation of the mechanical connection between the operating piston and the control piston during a malfunction.
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