GAV-40 Gas Admission Valve
The GAV solenoid operated gas admission valve is designed for use on four-cycle turbo-charged engines to govern the required amount of fuel admitted into the inlet port of the cylinder head depending on engine speed and load.
The engine load and speed are governed by the amount of gas admitted into the inlet port which is proportional to the duration of the GAV valve opening.
The GAV valve must assure rapid valve opening and closing (a fast response to the control signal) together with reliable valve opening for the whole requested period of time.
Consequently, the GAV valve features short travel, the moving valve plate is opened by the solenoid force and closed by the spring force together with gas pressure. The design provides a complete seal in the closed position of the valve.
The graphic shows the accuracy of the valve. The blue curve is the valve travel and the red curve is the current to the solenoid of the valve.
From the moment of lift of to fully open it takes 2ms and also for closing it takes 2ms. The red curve also shows closing the valve is followed by only one minor rebounce.