Carbon deposits in the engine

1. Formation of colloid and carbon deposit During the storage and transportation of fuel oil, oxidation reaction occurs easily, and colloidal substances are generated. These colloidal substances can be classified according to the solubility of gasoline: colloidal and non-solubile. The non-solous material is also called sediment. After it is added to the fuel tank of an automobile together with the fuel, it will adhere to the fuel filter, blocking the filter medium, reducing the amount of oil supplied, making the amount of oil insufficient, and poorly atomizing the fuel. As a result, the combustible mixture becomes thinner and engine power and economy deteriorate. When sols enter the combustion chamber and are combusted with gasoline, many hard carbon deposits are formed in the intake valves, piston tops, piston ring grooves, combustion chambers, spark plugs, etc., resulting in lax valve closing and degraded engine performance. Acceleration is not smooth, idling instability, stall, jitter, knock and a series of failures. When the engine is working, the fuel or fuel intruded into the combustion chamber cannot be burned 100%. The unburned part of the oil forms hydrochloric acid and resinous gum under the catalytic action of high temperature and oxygen, adheres to the surface of the part, and then passes through. The high temperature effect is further concentrated into a complex mixture of asphaltenes and oil cokes, the so-called carbon deposits. When the vehicle is running, it is common to cause malfunctions due to the gums in the fuel and the carbon deposits formed after the combustion. Although the faults are small, they are extremely harmful. 2. Hazard of carbon deposition Carbon deposition on the cylinder head reduces the cooling effect of the engine. Make the engine's power and economy are greatly reduced. The carbon deposit on the top of the piston will form many hot surfaces, causing premature combustion and detonation, shortening the life of the engine. The accumulation of carbon on the valve face and the seat ring surface can result in lax valve closing and air leakage. This can lead to engine failure, inability to work, and valve ablation and other undesirable phenomena. The carbon deposits of the valve guides and valve stems will accelerate the wear of the valve stems and valve guides, and may even cause the valve stems to move in the valve guides to become astringent and stuck. The carbon deposit in the piston ring groove will make the ring gap and backlash of the piston smaller, and there will be no gap; it will cause the piston ring cementation to lose its elasticity, and even break the piston ring and pull the cylinder. Injector has accumulated carbon deposits, easily stuck injectors, causing the engine to run or suddenly shut down. The pre-combustion chamber starts the nozzle with accumulated carbon, which will clog the nozzle, making it difficult to start the engine. The spark plug has too much carbon deposit. After the fuel is wet, it is equivalent to the parallel shunt resistance between the electrodes of the spark plug, causing the spark plug to leak and cannot work. 3. How to remove colloid and carbon deposits In order to eliminate these troubles, it is necessary to remove carbon deposits and colloids in gasoline. However, many methods commonly used at garages still disassemble the engine and then perform cleaning. This method is not only time consuming, laborious and costly, but also not effective. It is even more difficult to remove the gums in tanks and tanks. It is also not suitable for the engine of today's cars. Because today's car engines are assembled under strict process requirements in a constant temperature, dust-free and ultra-static environment. If it is disassembled and cleaned and then reassembled, its power and sealing performance cannot be compared with the original performance. Now it is no longer a big headache, because only a certain proportion of fuel system cleaning and protecting agents (such as Great Wall Colin fuel cleaning and cleaning additives) need to be added in the tank to solve various problems caused by carbon deposition. Fuel system cleaning and protection agents are commonly used in gasoline and diesel products, and are specially designed for EFI vehicles, and are used exclusively for gasoline engines. They can automatically remove hard carbon deposits during the driving of the car and restore the engine's performance to normal. When suffering from disintegration, you can completely remove carbon deposits and regain driving pleasure. After using this product to clean the carbon deposit, the fuel filter should be replaced. Because the colloidal substances and deposits in the fuel tank and tubing are gathered here, if they are not replaced in time, the oil supply may be unsatisfactory.

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