3、泵油行程在泵油行程的初期，压力调节阀断电 使得由阀在泵腔内升高的压

3, the oil pump stroke <br>at the beginning of the pumping stroke, a pressure regulating valve such that the valve is closed off in a pressure bomb and other benefits of the valve in the pump chamber increases with the total for <br>closing by the following. <br>The pump piston moves upward to generate pressure in the pump chamber. When the pressure exceeds the pressure in the fuel rail, the fuel outlet valve is opened and fuel is pumped into the fuel rail. <br>Close the spring <br>inlet valve and <br>outlet valve

3. Pump oil stroke<br>At the initial stage of the pump oil stroke, the pressure regulating valve is powered off, so that the pressure raised by the valve in the pump chamber works together with the closing spring in the valve<br>Close with.<br>The upward movement of the pump piston generates pressure in the pump chamber. When the pressure exceeds the pressure in the fuel rail, the oil outlet valve is opened and the fuel is pumped into the fuel rail.<br>Closing spring<br>Oil inlet valve<br>Oil outlet valve

3. Pump oil stroke At the initial stage of the pump oil stroke, the power failure of the pressure regulating valve makes the pressure raised by the valve in the pump chamber and the closing bomb in the valve work together. Use it. The upward movement of the pump piston generates pressure in the pump cavity. When the pressure exceeds the pressure in the oil rail, the oil outlet valve is opened and the fuel is pumped into the oil rail. Closing spring filling valve delivery valve