Diesel Generator Tech

  The speed regulation methods of diesel generators include electric injection and electric regulation. Both belong to electronic speed regulation, and the difference lies in the control method of mechanical speed regulation. Below, the professional diesel generator manufacturer - Dingbo Power will introduce the difference in speed regulation control execution and fuel injection control between   diesel generator   electromechanical injection and electric governor. 1. Speed control execution method: The electric speed controller is a speed controller that is fed back by a speed sensor to the machine's speed signal. The speed controller converts the difference into a speed control signal by comparing the pre-set speed value to drive the actuator to control the oil supply rack or sliding sleeve to achieve speed control. The oil supply signal only relies on the speed signal, and the oil supply adjustment is achieved by the mechanical action of the actuator. The electronic fuel injecti

IP21 generator, generally referring to land use; IP26 generator, generally used in ships; IP44 water-cooled generator, generally used in ships. So what is the classification and definition of   generator   protection level (first digit)? 1. No protection or specialized protection. 2. Protecting solids larger than 50mm can prevent solid foreign objects with a diameter greater than 50mm from entering the shell. It can prevent a large area of the human body (such as the hand) from accidentally or accidentally touching the charged or moving parts inside the shell, but it cannot prevent conscious access to these parts. 3. Protecting solids larger than 12mm can prevent solid foreign objects with a diameter greater than 12mm from entering the shell. It can prevent fingers from touching live or moving parts inside the shell. 4. Protection against solids larger than 2.5mm can prevent solid foreign objects with a diameter greater than 2.5mm from entering the shell. It can prevent tools, metal wi

If the speed of the Cummins diesel generator set is unstable, the first thing to observe is whether there is any leakage at the interfaces of the fuel system. If there is no leakage, loosen the bleed screw of the fuel injection pump and press the hand pump to remove air from the low-pressure oil circuit. If there is no air inside the low-pressure oil circuit, the inlet filter screen of the fuel transfer pump should be removed for inspection. If the oil inlet filter screen of the fuel transfer pump is not blocked, the diesel filter or oil tank inlet pipe should be checked for blockage, air leakage, etc. If the unstable speed still occurs, the following checks and adjustments should be carried out in sequence based on actual usage: 1. Check if the connecting parts are loose, if the pipes are broken, and if the filters are not tightened, and correct them one by one; Check for wear, replace and adjust the transmission rod. 2. Reassemble and adjust the idle spring, readjust the speed limite

Today, we will briefly introduce the content of solutions for solving the consequences of excessive vibration frequency in   Cummins generator sets . If you have any further information, please come to consult our Dingbo website. Next, we will introduce relevant materials to you. Cummins generator sets may experience vibrations during equipment operation, which is a normal condition. However, how much vibration is present is not a common situation. Considering that excessive vibration not only significantly reduces the production efficiency of Cummins generator sets, but also causes certain losses to the units. It will continue to accelerate the damage to Cummins generator set components, leading to system failures. Considering that the vibration caused by the Cummins generator set during the transition from idle to normal operation is unavoidable. The adverse consequences of excessive vibration in the Cummins generator set: The vibration causes the sturdy connection parts of the Cummi

Cummins diesel generator sets sometimes experience shooting during operation. At this time, we need to investigate the cause and specific solutions? Below, Dingbo Power Generation Equipment will be introduced in detail to everyone. The  Cummins diesel generator set  experienced severe afterburning in the diesel engine, causing the mixture to enter the exhaust pipe and continue to burn when the exhaust valve was opened, producing an explosive sound. During the intake stroke of a diesel engine, pure air enters the cylinder. It only begins to inject fuel towards the end of the compression stroke, and small droplets of fuel, after certain preparation, reach the ignition condition and burn on their own. Fuel droplets diffuse while burning; This is the diffusion combustion method of the Cummins diesel generator set diesel engine. Injecting early, before compression ignition, too much combustible mixture is formed. When these mixtures burn simultaneously during ignition, it can cause a sharp

After the generator set is cold started, it is not allowed to slam the throttle. As the generator set is shut down without waiting for speed and temperature reduction, the oil content on the friction surface will be insufficient. When the diesel engine runs again, it will be further damaged due to poor lubrication. After the  generator set  shuts down, the circulation of the cooling system water is terminated, and the heat removal capacity is greatly reduced. When encountering hot parts, the cooling is lost, which can easily cause overheating of parts such as the cylinder head, cylinder liner, and cylinder liner, causing cracks, or causing the piston rod to swell too much and get stuck in the cylinder liner. On the other hand, if the generator set is shut down without waiting for speed and temperature reduction, it will result in insufficient oil content on the friction surface. When the diesel engine runs again, it will be further damaged due to poor lubrication. Therefore, before the

When using diesel generator sets in daily life, it can also cause the refrigerant to not circulate in the system, and sometimes the cause cannot be found. In this article, Dingbo Power Generation Equipment will briefly introduce relevant matters for everyone. The centrifugal water pump of a  diesel generator set  causes common faults. We need to first check whether the function of the centrifugal water pump is normal. If we find that the shaft sleeve of the centrifugal water pump transmission system is damaged beyond the deadline, it indicates that the centrifugal water pump is no longer functioning and must be replaced before all normal circulation systems can operate. The refrigerant level of the diesel generator set is too low or does not meet the requirements. If the liquid level is too low, it is very likely to immediately cause the temperature of the freezing liquid to rise, causing the freezing liquid to not circulate in the system. The freezing liquid should be treated with 50%

We believe that most customers use Cummins diesel generator sets with almost all loads turned on and do not follow the relevant user manual for application. All normal applications are: when running the Cummins diesel generator set, it is necessary to check whether the load air leakage switch is disconnected. If the Cummins diesel generator set is not operating normally, the load air leakage switch must not be connected. After application, the load should be cut off first and then the  Cummins diesel generator set  should be stopped. The sequence should be running normally - connecting to the load - disconnecting the load - operating at full load for a few minutes - shutting down - discharging the refrigerant. If operating under load, many electrical equipment will cause a very large amount of operating current when applied with working voltage, which is the instantaneous operating current. In many Cummins diesel generator sets, four maintenance system software will be modified. If the

Today, we will briefly introduce the maintenance of Cummins diesel generator oil pump parts. If you have any further information, please feel free to consult our Dingbo website. Next, we will introduce relevant materials to you. After the disassembly of the  Cummins diesel generator  oil delivery pump, check the wear of the inlet and outlet valves and valve seats: if there are cracks or severe wear, they should be replaced; If there is slight wear, it can be ground and repaired; If the piston and housing of the oil delivery pump are loose or move unevenly due to wear, the pump should be replaced with a new one. If there are signs of wear, dents, pits, etc. on the plane of the one-way valve, grinding paste should be used to grind it on the flat plate. In severe cases, a new one should be replaced. The surface of the one-way valve seat on the housing is severely worn or uneven, which should be replaced. If the top rod and top rod sleeve are severely worn, resulting in large gaps, poor se

When repairing generator sets, it is of great significance to correctly remove oil and impurities from the surface of components to improve repair quality and extend the service life of machinery. Failure to strengthen the cleaning of parts, improper selection of cleaning agents, and improper cleaning methods can lead to early wear and corrosive damage of components. If the impurities in the bolt holes of the  generator set  and the sand particles in the hydraulic components are not thoroughly removed, resulting in insufficient bolt torque, easy fracture of the piston ring, erosion of the cylinder gasket, and early wear of the hydraulic components: during major repairs, attention is not paid to removing oil stains or impurities accumulated in filters, lubricating oil channels, etc., which leads to incomplete maintenance work and reduces the equipment's trouble-free operation time. When cleaning components, repair personnel should choose the correct cleaning agent. For the cleaning

  If your machine has experienced the following five phenomena, then it needs to be overhauled. Our company can provide regular maintenance services for major, medium, and minor repairs of generator sets, and professional technical personnel can solve all machine faults for you, protecting your machine! Our Dingbo Power Generation Equipment specializes in the production of various types of generator sets, including small generator sets, imported generator sets, heavy oil   generator sets , etc. Please visit our website for details: The generator set has the following five situations: 1. The diesel engine is weak in operation, with a significant decrease and instability in rotation after acceleration, sudden sound changes, and black smoke emitted from the exhaust. 2. The diesel engine is difficult to start at room temperature, and there is a knocking sound from the crankshaft, bearings, connecting rods, bearings, and piston pins during operation. 3. When the temperature of a diesel engi

One of the power equipment in the data center of a small diesel generator set, and it is common for the diesel generator set to be burned down. In order to ensure that the normal operation of the data center computer room is not affected and to prevent   diesel generator sets   from being burned during operation, in addition to using necessary technical protection measures before operation, the following useful methods should also be used: 1. Make the diesel generator set clean During the operation of a diesel generator set, if dust, water stains, and other debris enter its interior, it will form a short circuit medium, which can damage the insulation layer of the wire and form a turn to turn short circuit. As the current and temperature increase, the diesel generator set will be burned down. Therefore, it is necessary to prevent dust, water stains, and other debris from entering the interior of the diesel generator set. It is also necessary to regularly clean the exterior of the diese

There are various reasons for the insulation fault discharge of the motor set, which can also cause the generator set to malfunction. Below, Starlight Power Generation Equipment will provide a detailed introduction to the reasons for the insulation failure and discharge of the   generator set engine . Firstly, during the manufacturing process of motor coils, due to technological reasons, air gaps may occur between the edge layers or between the insulation layer and the strand wire. If the voltage between the air gaps reaches the breakdown voltage of the gap during the operation of the motor, fault discharge will occur. Moreover, as the motor runs for longer, the insulation layer will further deteriorate under various stresses such as heat, electricity, machinery, and environment, ultimately leading to insulation layer cracking Peeling, loosening of slot wedges, and loss of functionality of semiconductor strip coatings; Secondly, when transient overvoltage occurs in the power system, it

  As an essential auxiliary equipment for diesel generator sets, the daily fuel tank of diesel generator sets is often overlooked due to its relatively simple technology, which not only poses safety hazards but also affects the normal use of the set to a certain extent. The   diesel generator set manufacturer   has found in our actual work that there are some hidden dangers in the production and installation of many fuel tanks, which can be summarized as follows: 1. The functional design of the fuel tank is incomplete, such as not setting up an oil overflow port or a drain valve; 2. The oil tank has not undergone anti-corrosion and rust prevention treatment, and after a period of time, the corrosion is severe; 3. The fuel tank capacity indicator is not clear enough; 4. The matching valves are not standardized, and many are replaced by water heating devices, resulting in unsatisfactory results; 5. Unreasonable design capacity, etc. Next, Dingbo Power Generation Equipment will introduce