FIELD: engines and pumps.
SUBSTANCE: at valve opening or closing, control system tracks valve current position and speed to generate the instruction for switching of slide valve so that air is fed from pneumatic accumulator to timing valve piston drive opposite cavity. Note here that valve speed is decreased to ensure a shock-free contact. Thereafter, control system changes the air switch slide valve to initial preset open or closed position.
EFFECT: longer life.
1 dwg
