Introduction to automotive high pressure fuel pump

    Regardless of the type, the key to an oil pump is the word "pump". The number, pressure and timing of the oil valves must be very precise and automatically adjusted to the load. The oil pump is a delicate manufacturing, production and processing of technically complex prefabricated components, the world's general car diesel engine oil pump are produced by the world's rare factory car with injector manufacturing production production.

    The key component of the diesel engine pump is the gear pump, if the common hospital syringe is described, then the cap of the fitness movement is called the gear pump, the syringe is called the gear pump sleeve, assuming that a torsion spring is installed inside the syringe against one end of the gear pump, the other end of the plunger pump touches the engine camshaft, when the engine camshaft turns a week, the gear pump will move back and forth in the plunger pump sleeve once, which is This is the usual movement of the high-pressure oil pump produced by the car engine injector manufacturer.

    The gear pump and the plunger pump sleeve are manufactured as a very precisely machined mating part. The diesel high-pressure oil pump has a tilting groove on the hand of the gear pump, and there are small round holes called suction inlets on the upper side of the gear pump sleeve. This suction inlet is diffused with the diesel engine, and when the gear pump tilting groove is against the suction inlet, the diesel engine enters the gear pump sleeve, and the plunger pump is topped by the engine camshaft to a certain degree of Kor, the gear pump tilting groove is separated from the suction inlet, and the suction inlet is hermetically sealed so that the diesel engine can neither be inhaled nor Can not be pressed in, gear pump again rise pressure squeeze diesel engine, diesel engine pressure to a certain level will be top printing size goods swarmed out into the injector, and then from the injector into the cylinder car engine engine combustion chamber. Gear pump every time out a certain amount of diesel engine, only part of the spray into the cylinder, part of the back into the oil hole drain away, and the application of adjusting the drain away back to the remaining oil to adjust the booster oil pump ignition advance angle.