Similar to human bone joints, the 'piston rings' of the generator set are divided into gas rings and oil rings according to their functions. They have the following functions.Piston rings are the parts that move in three directions among all engine parts.(i.e. axial movement, radial movement and rotational movement in the circumferential direction), and it is also the most demanding part in use conditions.At the moment of explosion in the engine combustion chamber, the gas temperature can reach 2000℃-2500℃, and its explosion pressure reaches an average of 50kg/cm2. The temperature of the piston head is generally not lower than 200℃.The piston makes reciprocating motion, and its speed and load are very large.Therefore, piston rings work under high temperature and high pressure conditions.Especially the first gas ring has the highest temperature and the worst lubrication conditions. In order to ensure that it has the same or higher durability as the other rings, the working surface of the first gas ring is often porous chrome plated. deal with.The porous chromium plating layer has high hardness and can store a small amount of lubrication.

Cummins engines comply with ISO3046 standards and adopt SAE standard flywheel housing. Relying on its reliable stability, efficient start-up performance and low emission standards, the country has three guarantees to ensure that it has created a world brand in the engine and generator set industry and is deeply trusted by the majority of users. The Sino-US joint venture Dongfeng Cummins and Chongqing Cummins generator sets have small size, light weight, low fuel consumption, high power, reliable work, and easy to supply and repair. It adopts an electronic speed regulator, which has protection functions such as excessive cooling water temperature, low oil pressure, speed alarm and automatic parking. [Brief description] The valve mechanism of the engine is an important part of the entire air distribution system. Its function is to ensure that the engine can absorb as much gas mixture or air as possible during the engine's intake phase, and at the same time, it is reliably sealed during the engine compression and work phases. Because the valve mechanism bears high temperatures when the engine is burned, it is also cooled from the intake air.

The valve of the diesel generator set will make an abnormal noise, and many customers are helpless to make it easier for everyone to self-check the generator set and find problems in time. There are many abnormal noises generated during operation of the unit, and the valve can be adjusted according to the conditions. When operating a diesel generator set, the valve has abnormal noise and the solutions are as follows: Abnormal: The valve leakage sounds outside the valve room, which is more obvious at high load and low speed, and the sound increases with the increase of load; Cause: When reaming the valve seat, due to improper operation or excessive wear of the valve conduit, the valve seat is skewed or the valve gap is small, resulting in valve ablation, causing the valve to close tightly and leak. Treatment method: Remove the cylinder head, grind the valve, check the valve spring force, and readjust the valve clearance. Abnormal: When the engine is running at idle, a continuous knocking sound occurs between the tail end of the valve stem and its driving member, which increases with the increase of the rotation speed. The sound does not change when the engine temperature changes or the fire breaks. Reason: 1.

Volvo is a manufacturer that only produces inline six-cylinder engines. Its technology in this power range is unique and it is at the forefront in terms of emission indicators and noise treatment.As the agent manufacturer of Volvo generator sets, Jiangsu Haixing Power Technology Co., Ltd. has made great efforts in quality and service to build the best service provider in mainland China.Volvo's many advantages make it unrivaled in the production of generator sets in the mid-power segment.The characteristics of Volvo engine are: 1.For quick and reliable cold starting, the heater is installed in the intake manifold, making it easy to start the engine when the ambient temperature is low.At the same time, the low-resistance supercharger and quick-response fuel injection system enable the engine to have a high load-bearing capacity in a short recovery time; 2.Low operating costs. The use of advanced technology in the engine combustion process greatly reduces fuel consumption and provides users with the lowest operating costs;

Fuel injectors are important components of generator sets. A device that atomizes the oil to adapt it to combustion requirements. This is the effect of the fuel injector, but the control of fuel injection volume and blockage cleaning are the problems that many customers are concerned about, so Jiangsu Haixing Power will answer them one by one.

Companies using generator sets often find that there are carbon brushes (brushes) problems in the unit, which has caused production to remain unchanged for many customers. They have repeatedly contacted Jiangsu Haixing Power's after-sales response. Multiple safety notices have been reported continuously for several large generator sets, which caused major economic losses to the enterprise due to failure of carbon brushes or rotor current collector rings. When a fault occurs during operation of the carbon brush that is imported and exported, how to determine the type and nature of the fault so as to eliminate the fault as soon as possible and ensure the stable operation of the equipment is something that everyone needs to think carefully. In fact, if the carbon brushes of the generator set are maintained and used properly, there will be no problems. Nowadays, it is often reported that large generator sets have shutdowns caused by carbon brushes or rotor current collector ring failures, causing significant economic losses to the company. How to eliminate faults and ensure the stable operation of the equipment is a question that everyone is concerned about. Haixing summarized the experience of his predecessors and gave some information for your reference.

The fuel injection pump of the generator set is the main component of the fuel supply system. Its working condition will directly affect the power, economy and reliability of the diesel engine.With the help of existing information and practical experience, Haixing Generator has summarized the following 'Ten Points' for correct maintenance of the fuel injection pump for your reference.Proper maintenance is an important prerequisite to ensure the normal operation of the fuel injection pump and extend its service life.1. It is necessary to properly use and filter diesel fuel to ensure that the diesel fuel entering the fuel injection pump is highly clean.Generally speaking, diesel engines have much higher filtration requirements for diesel than gasoline engines for gasoline. When using, diesel of a grade that meets the requirements must be selected and must undergo at least 48 hours of sedimentation.Strengthen the cleaning and maintenance of the diesel filter, clean or replace the filter element in time; clean the diesel tank in time according to the operating environment conditions, and remove the sludge and moisture at the bottom of the tank. Any impurities in the diesel will damage the fuel injection pump plunger and oil delivery valve. Couplings and transmission components cause severe

The generator set shell is the body. It is a box made of gray cast iron material, which is affected by various internal and external loads and the external environment during work. Although the generator set is very strong, many problems will still arise after long-term use. Therefore, Jiangsu Haixing Power will give several forms of body damage and simple repair methods below. 1. It is frozen and cracked in cold weather. This is the most likely damage to diesel engines in winter. Cracks that appear on the body can only be repaired by cold welding when they are not subjected to stress. First, cut the crack-resting holes at both ends of the crack, then plant several iron nails along the crack, then patch a few pieces perpendicular to the direction of the crack, and use low-carbon steel welding rods to weld them firmly along the crack and patch. Pay attention to tapping the weld with a small hammer while welding, and then correct it with flame after all welding. 2. The bearing holes of the upper and lower balance shaft end 205 are worn. This situation must be fixed immediately. When the bearing hole is worn lightly, it can be repaired by enlarged 205 bearing outer circle method and used in the outer ring of the bearing.

In the Cummins generator set repair station, Jiangsu Haixing Power Technology Company found that the problem of the repaired unit is caused by the low oil pressure of the unit or the non-circulation of the coolant. Therefore, Haixing generator set maintenance technicians reminded customers to pay attention to some details to prevent major problems such as cylinder pulling and leakage. 1: Low oil pressure When the unit is running, the low oil pressure will cause poor lubrication of the transmission parts of the unit. If the oil circuit is blocked, the cylinder pulling, holding the cylinder, and bearing gap will also occur, which will directly affect the normal use of the Cummins generator set. (1) Cooling system: The engine oil cooler is blocked; the outer space of the radiator core is blocked. (2) Lubrication system: the oil filter is dirty; the oil suction pipe is blocked; the oil pressure regulator fails. (3) Mechanical adjustment and repair; improper bearing clearance; engine needs to be overhauled; main bearing or connecting rod bearing is damaged. (4) Maintenance: The engine is overloaded; the oil must be replaced on time,

The term 'Chinese-English' in the generator set is compared. Only when purchasing a generator set can you understand the active power (kW) and it refers to the power actually supplied to the load by the generator set. It is provided by the engine of the generator set and is limited by the engine horsepower. The heating and driving motor rotation are completed by active power. Active PowerActive power is the real power (kW) supplied by the generator set to the electric load. Active power creates a load on the generator set's engine and is limited by the horsepower of the en