The 8EY26W marine diesel engine is a type of internal combustion engine in which the diesel cycle is used to create motion. Its main difference with other engines is the use of compression combustion. In this type of engine, explosion does not take place, but the fuel and air mixture condenses due to very high compression without sparking in the 8EY26W marine diesel engine, and the main revolution of this 8EY26W marine diesel engine is 100 revolutions/ are considered minutes.
Details of 8EY26W marine diesel engine in UAE
The Yanmar 8EY26W marine diesel engine is a wide variety of engines that can ignite fuel without the need for an electric spark. In these engines, high temperatures are used to ignite the fuel. In this way, first they raise the temperature of the combustion chamber very high, and after the temperature is high enough, they mix the combustible material with air.
As you know, two factors of heat and oxygen are needed to burn a fuel. Oxygen enters the engine cylinder chamber through the engine inlet ducts and is then compressed by the piston. This compression is so high that it causes very high heat. Then the third factor, i.e. fuel, is added to heat and oxygen, as a result of which the fuel ignites and leads to movement in the 8EY26W marine diesel engine in Dubai.
8EY26W marine diesel engine can be classified on different bases like other internal combustion engines. For example, a marine diesel engine can be divided into a two-stroke marine diesel engine or a four-stroke marine diesel engine according to the amount of ignition frequency per crankshaft revolution, or according to the production power expressed in horsepower. or according to the number of cylinders or the arrangement of the cylinders, which were divided into two types of linear marine diesel engine and V marine diesel engine or Khorjini marine diesel engine.
Structure of marine diesel engine model 8EY26W in Dubai
The structure of the marine diesel engine in Dubai is different from spark ignition engines only in the fuel feeding and regulation system. Therefore, there are very similar structures between these engines, and the only difference in their construction is the following parts that are present in the marine diesel engine and are not present in other internal combustion engines.
Structure of marine diesel engine model 8EY26W
The structure of 8EY26W marine diesel engine is as follows:
- Injector pump in marine diesel engine model 8EY26W
It is responsible for regulating the amount of fuel and providing the necessary pressure for fuel injection. In the marine diesel engine system in Dubai, which is the most used in heavy machinery and road construction, the diesel pump or injector pump is the beating heart of diesel systems, and what causes the movement and high power of this model of devices is the presence of engines of Combustion type. These types of engines can be very effective in super-heavy marine loads, in sand mines and very large construction projects, and in their time they were considered to be the initiator of a huge revolution in the diesel machinery industry, with the improvements made until today. Another type could not replace this model of diesel engines.
A diesel pump or injector is a device that pumps or transfers fuel into the cylinders of diesel engines. The injector in diesel engines consists of very complex components, each of which has specific conditions and functions. The most important task of the injector pump after pumping the fuel is to withstand the temperature and internal pressure of the cylinder so that it can convert the fuel into fine and powdery droplets. And after that, shape them in a circular way so that the fuel reaches all the combustion parts of the engine.
- Injectors in 8EY26W marine diesel engine
They cause pulverization of the fuel and gasification of the combustion chamber. When the piston is in its compression phase, the injector injects the fuel into the cylinder and the piston compresses it as it rises. At this time, the fuel explodes and the process continues.
The injector, one end of which is connected to the fuel supply system and the other end of which is connected to the cylinder head, thus to the valve head. So, the job of the injector is to inject fuel into the cylinder. As mentioned, in gasoline engines, fuel is sprayed in the cylinder when the piston rises, and after sparking the spark plugs, the sprayed fuel explodes and the power generation operation is performed. The diesel engine has the same efficiency, but the working process is slightly different.
In gasoline engines, fuel enters when the valve opens. But in diesel engines, when the valve is opened, the heated air goes into the cylinder. At this time, when the piston condenses the hot air strongly; The injector then sprays the fuel into the very hot compressed air. As a result, fuel is ignited and power is produced.
- Fuel filters for marine diesel engine model 8EY26W
They separate extra and foreign substances from fuel. Filters in the diesel generator are responsible for protecting and purifying the oil inside the diesel engine. The filter allows pure oil, fuel, water and air to reach the diesel generator engine.
In fact, the filter acts as a strainer for the diesel generator, which causes the impurities and pollution of the materials entering the diesel engine to be taken. There are different filters in the diesel generator, including oil filters, air filters, water filters, and fuel filters.
By changing the diesel generator filter in time, it is possible to reduce the depreciation of the device and instead increase the efficiency of the system.
The main function of the oil filter
oil refining and purification, and this prolongs the efficiency and life of the diesel generator engine, when we use a suitable and quality oil filter, the engine will have a long life, better performance and higher efficiency, and avoid heavy costs in We avoid engine service and repair time.
For example, when we add oil later than the specified time or use non-standard and low-quality oils, pollution caused by high engine performance, high engine temperature, dust present and suspended in the air, sediments and soot caused by Fuel, over time, blocks oil passages.
Types of diesel filters
There are different filters in the diesel generator such as:
- Diesel generator oil filter
The diesel generator wears out during operation and its engine produces a lot of heat. This is normal because the diesel generator, like any other electrical device, emits heat during operation.
If this heat generated in the engine remains, it will damage the diesel generator and reduce the life of the device. To prevent this situation, diesel generator engine oil is used. which reduces the consumption of diesel and removes the heat generated inside the engine due to its operation. The oil filter is one of the industrial diesel generator filters. Putting the right oil filter in the diesel generators will reduce the heat produced in the engine, and the diesel will easily turn on and start working at low temperatures.
Like any electrical device, the diesel generator also reacts to the entry of pollution and small particles in the air. The entry of pollution into the diesel generator will cause damage to the machine's engine and reduce its efficiency and ultimately reduce the useful life of the diesel generator.
Air filters are divided into different types according to the type of diesel generator in which they are used and their manufacturing technology. Diesel generator air filters are divided into four types:
• Paper air filters
• In this type of filters, there is paper with folds that the polluted air enters the pre-filter when it enters the engine, and the paper in the filter absorbs the polluted particles and unpolluted air enters the engine.
• Oily air filter
• It takes the polluted air and dissolves the particles in the air in the oil inside it, and then clean air enters the engine.
• Sponge air filter
• Cotton air filter
• Diesel generator water filter
The diesel generator water filter is used to separate the impurity particles in the coolant that we add to cool the diesel engine. Because the pores of this filter are smaller than the size of the impurities in the liquid, the impurities do not pass through the filter and cannot enter the diesel engine.
Hardening filter for diesel generator
Among the other filters in the diesel generator, there is a strain filter. As you know, the water that enters the diesel generator has salts and hard mineral compounds, which if it enters the engine of the diesel generator, it may cause malfunction of the device and damage it.
To avoid this situation, a hard filter must be used to purify the water entering the diesel engine. This filter is used to remove hard mineral salts and microorganism compounds and some bacteria from water. In this way, the water enters the filter first, and after the solids and hard compounds are removed by the filter, it enters the device.
Application of diesel generator filter in marine diesel engine model 8EY26W
The oil filter has the role of protecting and purifying the oil inside the diesel, and based on the design of the diesel, it can have different numbers and arrangements.
To prevent the oil flow in the engine from being reduced or interrupted, even with the filter holes blocked, a safety valve was placed in the filter or its base, which opens as soon as there is a pressure difference between the inlet and outlet of the filter. In this case, oil purification is done as a secondary flow and the purification process is gradually reduced. To increase the desired properties in the oil, special substances are added to it, including cleaning agents.
- Fuel transfer pipes in marine diesel engine model 8EY26W
Fuel transfer pipes must be non-saturated and withstand pressure. Fueling in diesel is divided into two separate parts. Low pressure circuit and high pressure circuit.
Low pressure fueling circuit of diesel engine
This circuit includes the following components:
Tank - primary pump - filter - injector pump suction channel - small head valve - weak pressure transmission pipes.
Diesel fueling high pressure circuit
This circuit includes the following parts:
Plunger and barrel - pressure valve - high pressure pipes - injector.
The working principles of diesel fuel supply circuits are that the fuel is sucked by the primary pump from the tank, which is located at a lower level, and reaches the filter. The fuel impurities in the filter are completely purified and the fuel under the pressure of the primary pump reaches the suction channel of the injector pump. At the right time, when the barrel is relatively empty and the plunger in the barrel goes down quickly, the fuel under the pressure of the primary pump quickly enters the pressure zone. It is pumped a lot and the fuel plunger is under high pressure. When the fuel pressure reaches enough to open the pressure valve of the injector pump, it passes through it and enters the high pressure pipes and reaches the injector. In the injector, there is a needle valve that tends to be closed under the pressure of the spring. High pressure fuel affects the conical tip of the needle and causes it to rise and the needle spring is compressed.
- Turbo charger
They increase the intake of air into the engine cylinder. Simply put, a turbocharger is a mechanical engine that increases the amount of air entering the engine. This system is responsible for blowing high-pressure air into the cylinders, and this work also helps to get out the smoke, also this work increases the air in the cylinder, and then it increases the power and efficiency of the engine.
As mentioned, the 8EY26W marine diesel engine is divided into four-stroke and two-stroke engines based on how they work. But in both of these engines, four main operations are performed, which are suction or breathing - compression or pressure - work or explosion and discharge or smoke, but depending on the type of marine diesel engine model 8EY26W, these steps may be done separately or together. take Diesel generators are one of the types of systems that use the 8EY26W marine diesel engine to supply their mechanical power.
Diesel generators are electrical energy generators that use diesel fuel to provide kinetic energy to operate the generator shaft. Diesel engines have the highest thermal efficiency compared to internal combustion engines and start in less than 10 seconds.
Factors affecting the price calculation of marine diesel generator in UAE
To choose a diesel generator, we consider the following:
- Calculation of the consumed electrical load
- Operation type (emergency, permanent working mode)
The purpose of calculating the electric load is to reach a certain amount of the need for electric energy to provide a suitable generator, because if the generator has a capacity lower than the calculated value, it cannot meet the consumption needs, and if the capacity is larger than the demand, an additional cost will be imposed on the investor. will do. If the diesel generator is used in emergency situations, it is not necessary to choose the generator in full calculated capacity and only the necessary facilities can be connected to the generator.
But the question of what factors affect the price of diesel generators is in the minds of many industrial owners as well as contractors and they tend to get answers very quickly. Due to the variety of diesel engine and generator brands and companies Coupling as well as changing the technical specifications of the diesel engine, such as power consumption, number of cylinders, fuel system, cooling system, country of manufacture, etc., the price of diesel generators is very diverse.
On the other hand, due to the fact that diesel generators are imported, the increase in the exchange rate increases the selling price of these machines. In addition to all these issues, the selected items needed for the diesel generator, such as the canopy, ATS panel, control boards, etc., also affect the price estimate.
But in general, diesel generators depend on many factors due to the use of many mechanical and electrical parts, and the following factors will affect the price of diesel generators:
Factors affecting the price of diesel generator
The factors affecting the price of marine diesel engine in Dubai are as follows:
- Device power
Increasing the power of the device will increase its price, so calculating the amount of energy required and preparing the diesel generator with the calculated amount will prevent additional costs from being imposed on the investor.
- Manufacturer's brand
In UAE, the diesel generators available in the market are classified into three categories, American and European, Iranian and Chinese, and the course of price change in these three categories will be downward.
- Control panel and accessories
The control board of the diesel generator is placed next to the engine and generator, and the quality of the equipment and technology used in the board will be determined, as well as the accessories such as the battery, exhaust silencer, diesel generator chassis, fuel tank capacity, shock absorber and canopy in the price. Finished devices will be effective.
- Device coupler
A diesel generator consists of the following three parts:
- diesel engine
- Generator
- Control panel
Connecting the engine and generator together on the spring chassis and placing a control panel next to it is called coupling. Whether this coupling is done in the country of manufacture or by the importing company will have an impact on the final price of the device.
- Currency price
Considering that most of the diesel generators in the market are imported, it can be concluded that the changes in the currency price will bring price fluctuations for the diesel generator.
Also, among other things that will affect the choice of diesel generator besides the price, the following can be mentioned:
- Fuel consumption of the device
- The possibility of providing parts in case of need for replacement
- Possibility of maintenance
- Purchase support and warranty
Purchase of 8EY26W marine diesel engine from Dubai Marine
To buy a marine diesel generator model 8EY26W from the Dubai Marine website, it is enough to contact our experts in the support department at the phone numbers listed on the website. We answer your questions.