Isobaric valve

What is an isobaric valve? The isobaric valve is a one-way valve. Under the action of spring pressure, the upper conical surface of the valve is closely matched with the valve seat. Its function is to isolate the high pressure oil pipe from the upper end of the plunger when the supply is stopped, to prevent the oil in the high pressure oil pipe. Pour into the fuel injection pump. The lower part of the oil delivery valve has a cross section that can be guided and passed through diesel. There is a small cylindrical surface under the cone surface of the oil discharge valve, which is called the pressure relief belt. Its function is to reduce the oil pressure in the high pressure oil pipe rapidly when the oil supply is finished, and to avoid dripping oil at the injection hole. When the annulus falls into the valve seat, the upper volume is quickly increased, the pressure is rapidly reduced, and the spray is quickly stopped. During operation, under the action of the cam and the plunger spring on the camshaft of the fuel injection pump, the plunger is forced to reciprocate up and down, thereby completing the pumping task, and the pumping process can be divided into oil-fueling-returning oil. Stages.