Role of oil pump
The function of the oil pump is to inject the right amount of fuel into the combustion chamber at the right time in the right form according to the working condition of the diesel engine to form a mixture suitable for combustion and meet the performance requirements of the diesel engine. The function of oil pump can be summarized as follows :(1) adjust the amount of fuel injection: according to the output power of the engine, the right amount of fuel is stably injected into each cylinder; (2) Adjust the starting point of oil injection: control the starting point of oil injection according to the speed and load to ensure perfect combustion; (3) Forming spray: atomizing fuel and evenly distributing it into the combustion chamber space. They determine the performance of the diesel engine, and have an important impact on the power, economy, emissions, noise, reliability and durability of the diesel engine.
Composition and working principle of oil pump
Basic working principle and process of oil pump are as follows: first of all oil transfer pump drain fuel from the tank, the fuel filter to the fuel injection pump inlet chamber, into the oil cavity after the oil through the oil hole were inhaled jammed cavity, driven by gear shaft, piston, compression of fuel oil in the plunger cavity use oil valve opening, to press the fuel into high pressure tubing, plunger are rising fast, So the pressure of the oil rises quickly, and the pressure spreads from the pump end to the nozzle at the speed of sound. The nozzle is an automatic valve needle valve is pressed on the surface by the pre-tightening force of the regulating spring. When the pressure rises to greater than the pre-tightening force of the regulating spring, the clockwise valve opens and begins to spray oil. Oil pump is an important part of oil pump system, and camshaft is the key part of oil pump.
The oil pump system not only provides fuel for the diesel engine, but also regulates the amount of fuel injection to ensure the normal operation of the vehicle. The adjustment of fuel injection by the governor control port installation governor is determined by the stability requirements of diesel engine work.
