Ability to operate pumps have a power source, which is the lower part of the convex engine crankshaft pulley gear Bangdai. Supply of electric concentrated pump, hand pump manufacturers concentrated Stone construction www.shoudongnongyoubeng.com www.sitongyoubeng.com. When the plunger L rose "on the spot" after moving down the plunger heeling tank will meet with the suction port, diesel has been sucked into the plunger sleeve inside, repeat the above mentioned actions. Whenever a certain amount of ram diesel exhaust, and only a small group injected into the cylinder, and the remaining part by the vent hole to go back and go back to using the increase or decrease in fuel vent to regulate the amount of fuel injection. Plunger body has a child heeling tank, put a hole called a plunger suction port, the suction port full of diesel fuel, when the plunger toward the suction port when heeling tank of diesel into the plunger kit, plunger is convex top pulley to a certain height, tilt plunger each groove so that the suction port opening, the suction opening is closed, the suction nor diesel can neither be pressed out, and then rise up the compression piston diesel oil, diesel oil pressure to a certain extent check valve will open the top and into and out of the nozzle rush, and then from the nozzle into the cylinder combustion chamber phenomenon. Inline injection pump plunger system each group corresponds to a cylinder, four cylinder piston system there are four groups, because this size is relatively large, mostly used in medium-sized transport. Supply of electric concentrated pump, hand pump manufacturers concentrated Stone Construction plunger and plunger sleeve is composed of a very precise processing suite. Such as buses and large trucks on ordinary internal combustion engine with inline injection pump. The key part is the injection pump plunger, if a hospital metaphor common syringe to do, then it is called a movable plunger stoppers, syringe plunger sleeve is called, if you install a spring-loaded syringes inside plunger at one end, the other end of the plunger contacts the convex pulleys, pulley when the boss turned one week, the plunger will move up and down once the plunger kit, which is the basic fuel injection pump plunger movement form.