What is the function of oil pressure regulator?

The function of the oil pressure regulator is to adjust the fuel pressure of the injector, so that the fuel pressure in the automobile oil circuit and the intake pipe pressure are kept within the normal range. In this way, the amount of fuel injected from the injector becomes the only time depending on the opening of the injector. Working principle of oil pressure regulator: The oil pressure regulator is actually an overflow valve controlled by diaphragm. The diaphragm divides the regulator into an upper spring chamber and a lower fuel chamber. The diaphragm controls the opening of the overflow valve to keep the pressure balance between the upper and lower chambers. When the oil pressure in the fuel chamber rises beyond the resultant force of spring pressure and vacuum gas pressure, the diaphragm arches upward and the regulating valve opens, so that part of the fuel flows back to the fuel tank from the ball valve through the oil return port, which reduces the fuel pressure. When the pressure drops to the control oil pressure set by the regulator, the ball valve is closed to maintain a certain pressure in the oil path from the check valve of the oil pump to the pressure regulator. Introduction of the oil pressure regulator: The oil pressure regulator refers to a device that adjusts the fuel pressure entering the fuel injector according to the change of the vacuum degree of the intake manifold, so that the difference between the fuel pressure and the intake manifold pressure remains unchanged, and the fuel injection pressure remains unchanged under different throttle openings.