Rotate the plunger of the auxiliary pump to change the oil supply of each auxiliary pump, so as to achieve the necessity of changing the load and speed ratio of the diesel engine, and at the same time adjust the oil supply symmetry of each cylinder. The driving mechanism is composed of camshaft and rolling bar transmission system components, and its function is to push the plunger to adapt to the movement and ensure the engine to supply oil at the right time. Pump body is the basic component of fuel injection pump, and all components are combined together according to the pump body to produce all fuel injection pumps. Plunger fuel injection pump is composed of speed regulating motor, fuel injection pump and early starter.
Fuel injection pump is the key component of vehicle diesel engine. The total stroke of fuel injection pump is generally composed of fuel injection pump, speed regulating motor and other components installed together. A part of the speed regulating motor consists of a flying hammer or a flying block, a gear lever, a torsion spring, a starting thickening, a variable speed rocker and the like. The fuel injection pump consists of a pump body, a camshaft, a plunger, a torsion spring, an oil outlet valve and an oil outlet valve seat. The booster consists of a shell, a flying hammer and a torsion spring. Plunger fuel injection pump is generally composed of pump body, slave pump, transmission mechanism and capacity adjustment mechanism. The pump body is the basic component of the fuel injection pump,
According to the pump body, each part is composed to produce all fuel injection pumps. Pump body is divided into two types: combined type and integral type, and aluminum alloy profile is more common. The function of the slave pump is to provide ultra-high pressure oil with a certain working pressure for the fuel injection pump at the required time under the impetus of the transmission mechanism, and at the same time ensure the immediate oil supply, which makes the flameout simple and changes the oil supply under the adjustment of the residual oil adjustment mechanism. The driving mechanism of fuel injection pump consists of camshaft and roller body of fuel injection pump. Its function is to push the plunger to move repeatedly, to carry out the whole process of oil supply, oil pressure and oil pump, and to ensure oil supply on time.
It is cooperating with external extension system. The function of the residual oil regulating mechanism is to carry out the command of the driver or the speed regulating motor and rotate the plunger to change the oil supply of each pump, so as to meet the needs of diesel engine load and speed regulation. At the same time, it can also be used to adjust the oil supply symmetry of each cylinder. When the camshaft rotates, the convex part of the camshaft pushes the torsion spring of the roller and moves the plunger.
When the convex part of the camshaft rotates, the plunger moves downward under the action of the torsion spring. Therefore, when the camshaft rotates, the camshaft and the torsion spring make the plunger move repeatedly, and then the whole process of oil supply, oil supply and oil pump is carried out. After the camshaft boss rotates, under the action of torsion spring force, the plunger moves downward to keep fit, the volume of the indoor space at the upper end of the plunger expands, the steam pressure drops, and a vacuum value is generated. When that inn hole of the plunger is put into the oil inlet, the diesel oil fil into the upper body of the gasoline storage pump enters the chest cavity and abdominal cavity of the plunger through the oil inlet, and the plunge moves to the bottom dead center to complete the liquid feeding.
When the cam shaft protrusion extends out of the roller body, the plunger torsion spring decreases and the plunger moves upward, so that the diesel engine is stressed. Part of the diesel engine flows to the oil cavity of the upper body of the fuel injection pump through two oil inlets. When the plunger covers the inner edge of the oil inlet of the sleeve specification, the top of the plunger becomes a closed volume. When the plunger rises again, its volume decreases and the steam pressure increases. The oil outlet valve is pulled open,
The high-pressure diesel engine enters the fuel injection pump through the oil outlet valve and hydraulic oil pipe and is sprayed into the engine combustion chamber. The plunger supplies oil upward. When the inclined oil groove on the plunger is connected with the oil inlet of the sleeve specification, the low-pressure oil is connected with the core hole, axial hole and inclined oil groove of the plunger head, and the steam pressure suddenly decreases. The oil outlet valve is quickly closed under the action of the torsion spring force of the oil outlet valve until the plunger reaches a larger point, and the oil supply is terminated. Later, with the rotation of the camshaft, the next circulation system gradually feeds, supplies and pumps oil.