The hydrocom actuator feature technology using electronically controlled hydraulic power to open and close suction valves. With hydrocom the suction valve, is kept open by the unloader so a certain amount of gas is pushed back into the suction chamber. Then, at a precisely defined point of time, the unloader is released and the suction valve closes. Therefore, only the gas remaining in the cylinder is being compressed. Oil pressure is applied to the hydraulic piston to push the unloader down when needed. The solenoid valve is the fast switching element giving the hydrocom its high dynamics. The seal housing fits directly to the suction valve cover. It separates the oil section of the valve housing and the gas-section of the compressor. Inside the electric housing are microprocessor-controlled circuits with watchdog features that handle the fast and precise actuator timing.
