ELECTRIC-TO-HYDRAULIC CONVERTER Russian patent published in 2009 - IPC G05D16/00 

FIELD: electricity.

SUBSTANCE: invention relates to electrohydraulics, and particularly, to automatic systems where converters of a.c. or d.c. electrical signal to hydraulic signal are used. Electric-to-hydraulic converter contains electromagnet winding connected to electrical amplifier, electromagnetic armature, mechanical hydraulic converter and winding temperature sensor. The electric amplifier is coupled with microprocessor controller, having two inputs connected to the converter control unit and winding temperature sensor. The electromagnet armature rests upon the output pressure gauge, i.e. membrane head being on the membrane and having upper outlet seat of the double-seat valve connected with the environment and supported by the spring. The lower inlet seat is fixed in the partition separating housing of the mechanical hydraulic converter into power pressure chamber closed by the lower inlet valve and output pressure chamber closed by the upper inlet valve and membrane.

EFFECT: simple design, increased accuracy and reliability.

5 cl, 5 dwg