Solutions for Uneven Fuel Supply of 150KW Electric Generator

Did you meet uneven fuel supply in your diesel generator generator? When there is uneven fuel supply in each cylinder, will directly effect the stable working of diesel generator. Some users meet the problem of uneven oil supply, but do not know how to solve. Today Dingbo Power manufacturer tell you the solutions of uneven oil supply of 150KW electric generator. Hope it is helpful to you.

Adjustment methods

A. Prepare two glass measuring cylinders for use. If the measuring cylinder cannot be found at the moment, it can also be replaced by two identical vials.

B. Remove the high-pressure oil pipe connector between the cylinder with too much (or too little) oil supply and the fuel injector.

C. Then remove the high-pressure pipe joint between cylinder and fuel injector with normal fuel supply.

D. Insert the ends of two oil pipes into two measuring cylinders (or vials) respectively.

E. Turn the engine with the starter to make the fuel injection pump pump oil.

F. When there is a certain amount of diesel in the equivalent cylinder (or small bottle), place the measuring cylinder on the horizontal platform and compare the oil quantity to determine whether the oil supply is too large or too small.

The relative position of the pull fork (or ring gear) on the fuel volume adjustment pull rod (i.e. gear rod) of the fuel injection pump can be changed for adjustment. For p-type pumps, it can be adjusted by turning the flange sleeve.

What should be attention to when operating adjustment of oil supply?

A. Loosen the set screw of the fork (or gear ring, or flange sleeve), and the oil supply can be changed only by slight movement. Do not move too much, otherwise it is difficult to adjust accurately (if necessary, mark the initial position first for comparison).

B. After each adjustment, the tightening degree of the fixing screw must be confirmed.

C. When adjusting the oil supply, ensure that the oil supply shall not be higher than the standard oil supply. Because the adjustment is carried out at low speed, the oil supply of the generator is uneven, considering the influence of oil leakage and many other factors, large unevenness (30%) is allowed at this time. However, at high speed, due to the influence of throttling and other factors, the allowable unevenness is small (3%). If the oil supply at low speed is higher than the standard oil supply quantity, the oil quantity at high speed may change greatly or even exceed the rated oil supply quantity.

D. If there is a large difference between the maximum fuel supply and the minimum fuel supply on the same engine, do not rush to adjust. First adjust and install the outlet valves of the two slave pumps for inspection and comparison. Sometimes, the fuel supply can also be changed. If the oil supply is not changed after adjustment, the two sub pumps need to be adjusted one by one.

E. Use the comparison method to adjust the oil supply, and the operation must be careful.

In a word, judge the actual working condition and combustion degree according to the exhaust temperature, pressure or smoke color of each cylinder of the diesel generator set, so as to determine whether the oil supply of the cylinder is too much or too little, and whether the oil supply time is too early or too late, and then adjust it. By properly adjusting the oil supply quantity and time of each cylinder, the fuel injection pump can supply oil to each cylinder according to the principle of distribution on demand, so as to eliminate the actual differences of each cylinder.

Guangxi Dingbo Power supply 25kva to 3125kva diesel generator set, covers Cummins,Volvo generator, Perkins, Yuchai, Shangchai, Weichai, Ricardo, MTU, Doosan etc. Since our company set up in 2006, our product has been widely used in school, hospital, shipyards, construction sites, sports meetings, highways, railways, airports, factories, ships, buildings, communications, mines, pipeline cleaning, construction machinery and other fields. If you have purchasing plan, welcome to contact us by email dingbo@dieselgeneratortech.com.