The regulator system has additional lever 1 provided for changing the turbine shaft speed. Point a of lever 1 is linked to the end of screw 2 in such manner that pivot O of lever 3 can be adjusted by turning screw 2. This shifts valve spool 4 so that piston 6 of servomotor 5 moves the regulating member in the direction of either opening or closing. To raise the turbine speed at constant load, point a is displaced upward. At this, pivot O and point D also move upward. Hydraulic fluid is directed to the left end of servomotor cylinder 5, moving piston 6 to the right, in the direction of opening the regulating member. As piston 6 moves, bell-crank lever 7 and links 8 and 9 return pivot O and valve spool 4 to the initial position. At the same time, as a result of opening the regulating member, the speed of the centrifugal governor increases and its sleeve A moves upward, returning the regulating member to its initial position. Thus, the steady-state condition of the turbine at constant load corresponds to a higher speed.
$4246$CHP,Rg$