When the pressure increases in pipeline 1, membrane 2 is bent to the left and it shifts jet valve nozzle 3 so that its jet is directed into the left channel and fluid is delivered to the top end of the servomotor. Piston 5 moves downward and shutter 4 is moved into pipeline 1, reducing the pressure. At the same time, lever 6 is turned about fixed axis A, and intermediate link 10, connected by turning pairs B and C to lever 6 and bellows 7, compresses the bellows. The system consisting of two bellows, 7 and 8, is filled with fluid and is fluid-tight. When bellows 7 is compressed the pressure in it increases. This compresses bellows 8 which, through spring 9, shifts jet valve nozzle 3 back to its central position. When the pressure drops in pipeline 1, the elements of the regulator operate in the reverse direction. Links 11 and 12 are connected by two turning pairs D to lever 6, and by turning pairs E and F to piston 5 and to shutter 4.
$3899$LHP,Rg$