METHOD TO CONVERT ELECTRIC SIGNAL INTO PNEUMATIC ONE Russian patent published in 2014 - IPC F15B5/00 F15C1/04 

FIELD: electricity.

SUBSTANCE: method implementation is as follows: an electromagnetic relay with a sealed housing is impacted by an electric signal and by its armature contact acting as a damper it is closing a nozzle in the form of a flowing three-way valve, which contacts the armature acting as the damper by its one tube, by its second tube it is connected to the pressure source and by its third tube it is connected to the output of a pneumatic signal; at that vacuum is created in the sealed relay housing by a separate ejector connected to the relay which is supplied from the pressure source through a preset choke.

EFFECT: increasing frequency passband for the converted signal.

2 dwg