Sicherheitsabsperreinrichtung

摘要

The safety shut-off device has two chambers (19,20) with connections (6-9) for regions (10,21) to be shut off from each other and a piston (1) separating the chambers. The connections are closed when the pressures in the chambers are equal. Actuators (2) interact with closure elements (3) and the piston to open the closure element in the chamber with the higher pressure when there is a pressure difference : Independent claims are also included for the following: (a) a coolant circuit with an inventive device (b) and a hydraulic circuit with an inventive device.