Diesel Generator Tech

Cold Weather Starting  ( Note:  A water jacket heater is recommended for stand-by   generator set   applications installed in a cold climate.) Preheater The glow plug system supplies heat to the cylinders so that compression temperatures are sufficient to ignite the fuel. To aid in starting the genset engine when the temperature is 50 °F(10.0°C) or below, an intake air preheater is available. Preheater equipment consists of a hand-priming pump to pump fuel into the intake manifold, and a switch to turn on the glow plug which is electrically heated by the battery. Fuel burns in the intake manifold and heats the intake air. Warning :  Do not use vapor in conjunction with the preheater. To do so could result in a fire. Steps to use the preheater for cold starting: 1. Set the throttle in idle position. Turn the glow plug toggle switch to the “NO” position. The red indicator light must be on. 2. After the red light has been on for 20 seconds, start...

This article will tell you what you should pay attention to when starting the Cummins engines . If you are interested, please take a few minutes to read it. Staring the Engines Please note that starting requires that clean air and fuel are supplied to the combustion chambers in the proper quantities at the correct time. Normal Starting Procedure Warning:   Before starting, be sure that everyone is clear of the engine and equipment. If the fuel system is equipped with an over speed stop, push the “Reset” button before attempting to start the engine. 1. On engines equipped with an air activated prelube device, open the air valve to activate the piston in the prelube device which will lubricate all moving parts in the engine. Note: On engines equipped with an oil pressure safety switch, hold the fuel by-pass switch in the “start” position until the engine oil pressure reaches 7 to 10 psi (48 to 69 kpa); then, move it to the “run” position. 2. Set the throttle for i...

About the operating instruction of Cummins engines, it is divided into several parts. Here, we mainly talk about what should pay attention to before starting the engines. Keep reading. 1. New and Rebuilt Engines Break-in NT series Cummins engines are run-in on dynamometers before being shipped from the factory and are ready to be put to work. But the operator has an opportunity to establish conditions for optimum service life during initial 100 hours of service by complying the following guide. 1) Operating as much as possible at three-quarter throttle of load range. 2) Avoiding operation for long periods at engine idle speeds, or at the maximum horsepower levels in excess of five minutes. 3) Developing the habit of watching the engine instructions closely during operation and letting up on the throttle if the oil temperature reaches 250 degree Celsius F (121 degree Celsius) or the coolant temperature exceeds 195 degree Celsius F (91 degree Celsius). 4) Operating wit...

Don't know how to select engine fuel, lubrication oil and coolant? Don't worry, this post will guide you to select the right one. ① Fuel The fuel should be selected according to ambient temperature. The selection should comply with light  Diesel  Fuel(GB252 choice fuel and first class fuel). Ambient temperature ② Oil Lubricating oil should be selected according to the ambient condition. The class of oil should not be lower than CD class of GB11122–1997 Ambient temperature ③ Coolant The coolant should be anti-freezing, especially when the engine is used in the plateau and in cold weather(below 0℃). It is good for the engine. The most used anti-freezer is glycol-water, which is a mixture of glycol and water( soft water is best. such as well water, spring water or other hard water, it should be mixed 2g tri-sodium phosphate with one liter water for softing). Selection of different proportionality coolant should vary with the ambient temperature. ...

Learning how to correctly start a diesel generator is not an easy thing. Starting incorrectly, it may have a bad effect on the diesel generator set. It can be said that correct steps are the precondition to guarantee the normal operation of the unit. Then what are the correct steps to start a diesel generator? Through reading this article, you will get the answer. 1. Check whether the water tank is full of water. In winter, check whether the antifreeze is full 2. Check the oil level, fuel level, and radiator water level. If the level is lower than the specified value, it should be added to the normal position. 3. Check whether all the switch position is correct to meet the start requirements. 4. Check whether the diesel genset “Emergency Stop”button on the dashboard is correct. 5. Check whether the outlet switch of the unit is off-position. 6. Check whether the genset preheating is normal. When the indoor temperature is lower than 20 degree Celsius, the electric heater sh...

The noise of generator set is mainly comes from  engine and generator. To reduce the noise of the generator set , it is necessary to control the noise source. This article will show you the detailed information about the genset noise source as well as the solution. The main noise source of engine is as follows: Induction noise Exhaust noise Combustion noise Mechanical noise Cooling fans noise The main noise source of generator is as follows: Ventilation noise Electromagnetic noise Mechanical noise Main noise source of engine 1. Air intake and exhaust system noise is the most powerful noise source of the engine. The main source of intake noise is as follows: 1) The pressure fluctuation of air in the intake pipe, which results in low frequency noise. 2) The air flows through the flow area of the intake valve at high speed, which results in high frequency eddy noise. 3) The noise of turbocharger compressor 4) The noise of scavenging p...

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Diesel engine cylinder liner should keep air intake system clean in the process of using. Avoid working without installing air filter. In addition, avoid overloading operation, maintain a good cooling condition and check the diesel engine cylinder liner periodically. However, any equipment used for a long time will wear. What are the reasons for diesel engine cylinder liner wear? The main reasons are as follows: First. Incorrect oil brand This will result in a poor lubrication and lead to a serious wear of cylinder liner. Second. Use inferior diesel Severe coking after combustion, which will lead to a serious wear of cylinder liner. Third. Filter failure Especially air filter fracture, the air come into the cylinder without passing filter short circuit. Due to the dust in the air, impurities enter the cylinder, which is easy to lead to a serious wear of diesel engine. Fourth. Quality and assembly problems of diesel cylinder liner. Fifth. Operational pro...

Don’t know the difference between gasoline generator and diesel generator? Don’t worry, you will find the answer after reading the post below. Before purchasing generator, people often ask what’s the difference between  diesel generator  and gasoline generator? As a professional manufacture, Jiangsu Starlight Electricity Equipments Co.,Ltd will tell you the difference between two of them. 1.   In-cylinder pressure object is different The  gasoline generator   compresses the gasoline and air mixture during the compression stroke stage; The diesel generator compresses the air at the compression stroke stage. 2. Ignition is different The gasoline generator relies on spark plugs; The diesel generator relies on atomized diesel to spray high pressure gas spontaneous combustion. 3. The mixture of fuel and air is different In the gasoline engine, fuel and air are combined in the carburetor and intake ducts; In the diesel engine, the mi...

If you want to know about the working conditions of diesel generator set, then you come to the right place. This article will show you the details. Hope it works for you. The working conditions of diesel generator set is that it can output the rated power under the condition of prescriptive environment, and also can work reliably and continuously. The working conditions of power plants (units) stipulated by the national standard is mainly determined by the altitude, ambient temperature, relative humidity, mold, salt fog and the degree of inclination. The standard working conditions should be adopted to determine the rated power of the diesel genset. Due to the diesel engine, AC synchronous generator and the control device have its own rules and standards in the national standard, so in the selection and determination of the genset working conditions, these factors should be considered, and it should be based on diesel engine. According to GB/T 2819-1995 “Gener...