FLOW-TYPE REGULATOR MECHANISM

Upon an increase in speed of the shaft being regulated, the sleeve of centrifugal governor 1 moves to the right, shifting valve spool 2 to the left. Hydraulic fluid is delivered to the valve by continuously rotating gear pump 3. The valve has negative overlap, since the width of the spool lands is somewhat less than the width of the ports in the valve body. In the central position of the spool, fl…