PRESSURE REDUCER Russian patent published in 2015 - IPC G05D16/16 

FIELD: machine building.

SUBSTANCE: invention relates to pressure reducers to decrease the pressure of fluid medium under pressure down to the required value and withdrawal of the fluid medium under pressure. A pressure reducer comprises a case fitted by the first lateral channel through which the fluid medium under pressure is supplied and the second lateral channel through which the fluid medium under pressure is withdrawn after pressure drop. Additionally there provided is a feedback channel for the communication between the second lateral channel and the third diaphragm chamber leading to a control valve. The fluid medium under pressure flowing in the second lateral channel comes to the third diaphragm chamber through the feedback channel, as a result the third diaphragm chamber is pressed up against the elastic force of the second spring up to balancing.

EFFECT: reduction of pressure of fluid medium under pressure is provided.

6 cl, 7 dwg