Diesel Generator Tech

This article continues to introduce the gas ring function and working principle of the piston ring in diesel generator sets. In order to improve the working conditions of the piston rings and ensure better fit between the piston rings and the cylinder, some piston rings use different cross-sections, and special attention should be paid during installation. The basic cross-sectional shape of an air ring is rectangular. Rectangular rings are easy to manufacture and widely used, but their break in performance is relatively poor and cannot meet the increasingly stringent requirements of engines. This ordinary compression ring can be installed freely in the gas ring groove. Some engines use a conical ring structure. The working surface of this ring is designed with a cone angle of 0.5 ° to 1.5 °, which reduces the contact surface between the working surface of the ring and the cylinder wall, allowing for faster wear in. The cone angle also has the function of scraping oil. But the wear of t...

Electricity supply becomes increasingly important now and diesel generator sets play an indispensable role in various industries as the main power source or a backup power supply. Diesel generators have become the first choice of many enterprises and individuals due to their reliability and excellent performance. However, many users don’t pay attention to the generator maintenance and service, leading to the reduced performance, frequent malfunctions and even premature failures of generator sets. So how to prolong the lifespan of your diesel generator while improving efficiency? Here are several tips for you. 1. Place your diesel generator in a suitable location It’s important to keep your generator in the right place. Diesel generator sets should be placed in a well-ventilated and dry area and be kept away from flammable and explosive materials. Additionally, they should be placed on a solid and level surface to reduce the vibration and noise generated during the operation of the uni...

The repair of the bearing shell of a diesel engine must be carried out after a detailed inspection and restoration of all faults in the cylinder block and crankshaft. Preparation work before repairing and scraping the bearing shell (1) Prepare various tools such as socket wrenches, scrapers, etc. (2) Prepare the cleaning oil and wiping cloth. (3) Prepare the adjusting shims (0.05-0.2mm thick copper shims) for the main bearing and connecting rod bearing. (4) Clean the crankshaft, connecting rod bearing seat, bearing cover, and bearing shell, and block the oil holes on the bearing seat. The purpose of blocking its oil hole is to prevent impurities from leaking into the oil hole on the bearing seat and blocking the lubricating oil passage when scraping the tile. Repair and maintenance of connecting rod bearings Repair method (1) Lift the crankshaft onto a dedicated bracket or stand it on the flywheel. (2) Clean the connecting rod journal and bearing. If there are roughness or s...

Diesel generator sets are designed to provide electricity during power outages or in places without connection to a power grid. They are renowned for their durability, high efficiency, reliability and longevity. As an important part of the power supply system, the stability and safety of diesel generators’ electrical system is directly related to the continuity and reliability of power transmission. In this article, we’ll share several tips on how to maintain the generator’s electrical system. The electrical system of diesel generator set serves as the bridge to connect with mechanical energy and electric energy, and it is the key to ensure the stable transmission of power. However, the electrical system may encounter various problems over time, such as aging, wear and tear and contamination, which will affect its performance and stability. Therefore, the maintenance of diesel generator’s electrical system is essential. The electrical system of diesel generator set is mainly composed...

The working principle of the cooling system of a diesel generator set is heat transfer. Heat always moves from hot objects to cold objects. There are three ways of heat transfer: conduction, convection, and radiation. Conduction refers to the heat transfer between two solid objects. For example, heat is transferred from the valve stem to the valve guide. Due to both objects being solid, heat is transferred from the hot air rod to the cold valve guide through conduction. For example, heat is transferred from the air duct to the cylinder head through conduction. Heat can be transferred through convection. Convection is the heat transfer that occurs through the circulation of heat in a liquid or gas. Through convection, the heat from the hot cylinder body is transferred to the coolant, and when the hot radiator components transfer heat to the surrounding cold air, convection also occurs. Radiation is a way of heat transfer. Radiation is the heat transfer that occurs by converting thermal...

Before purchasing a backup power generator, you need to consider a number of factors, such as your power requirements and fuel source. A right diesel standby generator can provide you with reliable electricity and bring you peace if mind during power outages. However, many people often make the following 5 common mistakes when buying a backup diesel generator. To make sure you buy a right generator for your home or business, you need to avoid these mistakes. Overestimate or underestimate power requirements It’s important to pick a correct size diesel standby generator that can provide the necessary amount of power to run all of the equipment without overloading the generator. If you overestimate or underestimate the power need and select a wrong sized diesel generator set, the generator may be damaged and your business operations may also be affected. Oversizing your generator can lead to inefficient operation and increased fuel consumption, while undersizing may result in power outa...

This article continues to introduce the working principle and structure of the hole type fuel injector for diesel generator users. High pressure fuel enters the annular groove at the upper end of the needle valve body through the oil passage in the filter element and injector body from the inlet pipe joint. This groove is connected to the annular space at the lower part of the needle valve body through two inclined holes. The high-pressure diesel flowing through the lower cavity exerts an upward axial thrust on the conical surface of the needle valve. When this force overcomes the frictional force between the pressure regulating spring and the needle valve body (which is very small), the needle valve moves upward and opens the injection hole [as shown in Figure 5-2 (b)]. Therefore, high-pressure fuel is sprayed into the combustion chamber from the injection hole at the lower end of the needle valve body. The lift of the needle valve is limited by the lower end face of the injector bod...

The fuel of a diesel engine is injected into the cylinder near the end of the compression process. The function of the fuel injector in a diesel generator set is to atomize the fuel into fine particles and distribute them appropriately in the combustion chamber, forming a good combustible mixture. Therefore, the basic requirements for the fuel injector are: a certain injection pressure, a certain range, a certain spray cone angle, good spray, quick fuel stop at the end of fuel injection, and no fuel dripping. The hole type fuel injector of diesel generator set is mainly used in direct injection diesel engines. Due to the number of spray holes and small aperture, it can spray several spray columns with small cone angles and longer range. The general number of fuel injection holes is 2-8, with a diameter of 0.15-0.50mm. The number and direction of spray holes depend on the requirements of various combustion chambers for atomization quality and the arrangement of injectors in the combust...

  In modern society,   diesel generators   have been widely used in different fields, such as industrial, commercial, medical, communication and emergency relief. They can serve as the main power source or the backup power supply and provide reliable power. Today, Dingbo Power will share several tips on how to use diesel generator sets efficiently, so that you can maximize the power output and conserve energy. Determine your power requirements Determining your power needs is an essential precondition for efficient use of diesel generators. You need to figure out the maximum power required, common load rates, continuous operating time, and the need for backup power and so on before buying a diesel generator. Through an accurate power load analysis, you can select a diesel generator set that meet the actual demand, avoiding buying an undersizd generator or oversizd generator. With the progress of technology, many energy-saving diesel generator sets are now available on the ...

This article continues to introduce the structure and working principle of mechanical blade type oil transfer pumps and plunger type oil transfer pumps for diesel generator sets. The fuel consumption of diesel engines varies under different operating conditions. When the load is high, the fuel consumption is high, causing the pressure at the outlet of the fuel pump to decrease. At this time, the plunger is pushed by the plunger spring, increasing the stroke of the plunger and increasing the pump oil volume. On the contrary, as the load on the diesel engine decreases, the fuel consumption decreases, the pressure at the outlet of the fuel transfer pump increases, the plunger stroke decreases, and the pump fuel volume decreases accordingly. The oil drain hole is used to remove fuel from the gap between the push rod and the pump body, preventing fuel from flowing along the push rod. Insert the tappet into the cam chamber to dilute the lubricating oil in the cam chamber. The fuel pump is...

In today's industrial and commercial applications, the stability and reliability of the power supply is indispensable. Power supply disruptions are wreaking havoc with business operations. Therefore, it’s necessary for many enterprises to invest in reliable backup diesel generators. Yuchai is the largest independent engine manufacturer in China and Yucai diesel generators are renowned for their high reliability, high performance and economy. Today, Dingbo Power will share the reasons for high reliability of Yuchai diesel generator sets. Excellent manufacturing process and materials First of all, the high reliability of Yuchai diesel gensets is a result of constant research in quality materials and manufacturing processes. From the casting of the engine body to the processing of the parts, Yuchai ensures that every link has undergone strict quality control and fine process treatment. Yuchai adopts the whole crankshaft alloy cast iron engine body and cylinder head, because this mat...

The function of the fuel pump is to increase the pressure of the oil in the fuel tank to overcome the resistance of the oil passing through the filter, and to continuously deliver diesel with a certain pressure and flow rate to the fuel injection pump. There are many structures of oil pumps, commonly including cycloidal rotor type, mechanical blade type, and plunger type. Dingbo Electric will introduce the structure and working principle of mechanical blade type oil transfer pumps and plunger type oil transfer pumps. (1) Mechanical blade oil pump. The rotating shaft on the oil pump is not concentric with the inner hole of the eccentric steel cylinder. There are four straight grooves on the rotating cylinder, which are equipped with blades to divide the interior of the eccentric cylinder into three spaces of different volumes, A, B, and C. When the rotating drum rotates, the spatial volume of the three parts mentioned above changes accordingly, with part A increasing and part C decreas...

The electric fuel pump is the "heart" of the fuel supply system in electronic fuel injection engines. The electric fuel pump is a device that continuously draws fuel out of the tank and provides the fuel system with a specified pressure and flow rate. Based on the function of the electric fuel pump, it is known that the performance of the electric fuel pump will directly affect the working performance of the engine. Electric fuel pump: Electric fuel pumps do have some advantages compared to mechanical ones. After being powered on, the electric fuel pump can operate independently. After turning on the switch, they can pump fuel: mechanical fuel pumps require the diesel engine to start or run before delivering fuel. Another advantage is that the installation position of the electric fuel pump is further away from the engine, so that the heat generated by the engine will not cause the oil pump to produce steam, thus reducing the risk of air resistance. Electric fuel pumps can b...

In the field of modern agriculture, especially in large-scale farming, the stability of power supply is the cornerstone to ensure the smooth operation of production. For farms, whether it is poultry farming, aquaculture or livestock farming, they may face serious economic losses and the animals’ life safety may be at risk when there is a power failure. Therefore, a consensus among many farmers is investing in one or more diesel generators as the backup power supply. How to choose the right diesel generators for livestock farms? Here are several key factors that you need to consider. Power requirements Before buying a diesel generator, the first step is to determine how much power you actually need. Both generators and the appliances in your livestock farm use watts (or kilowatts for 1,000 watts) to denote how much electricity they make or use. Assess the power required for daily operations and the likely increase in power demand in the future. Consider the power consumption of lighti...

In the modern construction industry, the stability and reliability of the power supply is one of the key factors to ensure the construction progress and quality. As a commonly used backup power supply, diesel generators can provide stable electricity in the case of mains interruption or instability. However, when buying diesel generators for construction industry, you need to consider many factors to ensure that the equipment can meet the actual needs and your budget. Power requirements Before choosing a diesel generator, you should assess the power needs of the construction site. Consider power requirements of equipment that need to operate continuously, such as lighting, office equipment and security monitoring system, and equipment used intermittently, such as mixers, cranes, welders and cutters. The total power requirements of these devices are an important basis for selecting generator sets. Size of construction sites Construction site size is also one of the key factors affec...

With the development of technology, more and more mechanical equipment will have protective measures. The use of any mechanical equipment is based on safety, and dangerous things will have protective and preventive measures, including diesel generator sets. It is necessary to install protective devices for generator sets that have been operating for a long time and generate mechanical and electrical energy during the operation process. The four protections of diesel generator sets include: low oil pressure protection, high water temperature protection, overcurrent protection, and overload protection. 1. When the oil pressure in the generator is low or reaches the warning level, the oil pressure protection system will start working, and the generator set will also issue a low oil pressure alarm and shut down; When the engine fuel supply system malfunctions, the overspeed protection system of the diesel engine starts working, immediately pulling the fuel cut-off valve to shut down the ...

Mining is a complex industry that is highly dependent on electricity support. In remote areas far from power grids, the power supply of equipment such as mining lighting, ventilation, drainage, air compressor mainly rely on generator sets. As a common prime or backup power source, diesel generators play a vital role in mining. Today, Dingbo Power will share several key factors that need to be considered when choosing diesel generator sets for mining industry. The complexity and particularity of mining environments makes it necessary to take into account many factors comprehensively when choosing mining diesel generator sets. The following are some key factors: Generator power capacity It is very important to choose a diesel generator set with sufficient power capacity to meet the power needs of the mines. The electricity demand of a mine usually includes lighting, ventilation, drainage, air compressor and other equipment. You need to determine the total electricity load and select a...

The 500kW Yuchai generator set of Guangxi Dingbo Power has the advantages of long service life, low fuel consumption, strong power, long-term continuous use, and emergency backup power supply (applied in petrochemical, railway, municipal engineering, industrial and mining enterprises, hotels and other fields. It can also provide customers with multifunctional generator sets such as self starting, automation, noise reduction and environmental protection, and mobile power stations). Parameters of 500KW Yuchai generator set Unit model DB-500GF frequency 50 Hz Unit power 500 KW output voltage 400/230 V Diesel engine power 572 KW, power factor 0.8 (lag) Output capacity 625 KVA unit size 3320 * 1400 * 1780mm Output current 900 A, unit net weight 3840 kg 500KW Yuchai Generator Set - Diesel Engine Parameters   Model YC6TD780L-D20 Rated speed 1500 r/min Number of cylinders: 6, maximum output power: 572 KW Cylinder arrangement: L-type fuel specification and grade: China 0 # (light...

In the rapidly growing hotel industry, ensuring a stable and reliable power supply is critical. Whether it is a five-star hotel or a budget chain hotel, when power outages occur, they will cause inconvenience to customers and may even lead to serious economic losses and brand reputation damage. Therefore, the managers of hotels should consider choosing a reliable diesel generator to provide backup power when the mains fails. Factors to consider when choosing diesel generators for hotel industry Local standards and regulations When selecting a diesel generator for your hotel, it is necessary to ensure that the genset meets the relevant standards and regulations. Also take into account the generator’s performance parameters, safety requirements, environmental requirements and so on. Only generators that meet the standards can guarantee their quality and reliability, ensuring that they can start quickly and provide a stable power supply in the event of a mains failure. Generator perfo...

The three most commonly encountered data when understanding engine parameters are power, torque, and speed. You may have seen these terms and parameters in the manual, but you are not very familiar with their meanings. Today, Guangxi Dingbo Electric Power will discuss the relationship between these three factors with everyone. After understanding them, we can analyze the performance of the engine more comprehensively. Firstly, Dingbo Power will introduce the concepts of these three, Engine Power unit: hp or kW; Engine Speed Unit: rpm； Torque unit: N·m； Power=n x torque x speed. What do power and torque represent? Why are diesel generators with higher engine power and torque more expensive? What is the relationship between power, speed, and torque? Why does a powerful engine depend on its power and torque? These four questions will be discussed and answered one by one below. Torque is the force exerted by the piston during one cycle of an internal combustion engine to rotate the engine....