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The primary effect of internal combustion engine oil
Source: Bearing network time: 2014-08-03
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0? Lang?--- Adhere to the internal combustion engine oil inside the engine is affected by the harsh environment in the launching machine; it is continuously oxidized and polluted. The oxide is easy to constitute sludge and carbon deposit; the smooth oil and the initiator are dirty; Increased wear and tear, mechanical damage, etc. API SD above quality grade smooth oil is rich in metal detergent and ash-free granules; it can clean the surface of metal, smash dust; adhere to the health of the machine parts.
0?æ·™?--- Cooling main bearings, connecting rod bearings, camshaft bearings; etc.; heat energy is generated after fuel incineration; but thermal energy cannot be fully converted into mechanical energy. Usually the thermal efficiency of internal combustion engines is only 30% to 40%; Conflicts and the internal combustion of the internal combustion engine and the exhaust into the atmosphere. Many people think that the cooling of the initiator only removes heat through the cooling system. In fact, the cooling system only cools the upper part of the initiator - cylinder head, cylinder liner and gas distribution system Probably taking away 60% of the lost heat, while the main bearing, the connecting rod bearing, the rocker arm and its bearings, the piston and other components in the lower part of the launcher are primarily cooled by the internal combustion engine oil; taking away 40% of the lost heat and conflicts occur Conflict of heat.
0?芊?--- Sealing the incineration chamber; avoiding excessive gas from the piston ring and the cylinder wall through the piston ring and the cylinder liner, there is a certain gap between the piston ring and the ring groove; and the metal surface has a small unevenness If the piston is moving; the gap and the unevenness will not get an outstanding seal; the gas will break into the crankcase; the helium will occur; that is, the power of the initiator will be reduced; and the smooth oil will be polluted. It can fill gaps and unevenness during exercise; it has an outstanding sealing effect.
0?佬ç 12.è·½?br> The corrosion of the initiator comes from the oxidation products of water, acid, air and smooth oil. These harmful substances can cause corrosion of metal parts such as piston rings, cylinder liners and bushings. API SD and above. In addition, a smoothing oil is added with a rust inhibitor or a multi-effect additive with anti-rust function; these additives are present through the oil layer (film); a fine adsorption layer is placed on the metal surface; and it is suitable for resisting the intrusion of various corrosive media. Together; the oil has the ability to neutralize and solubilize the acid; to corrode the corrosive medium to corrode the metal surface; to achieve outstanding corrosion resistance.
When the engine is started, speeded up and the load is added; the piston pin, the large end of the connecting rod, the crankshaft bearing and other components are subject to sudden changes in oscillation, impact load and pressure; the oil film composed of suitable viscosity of the internal combustion engine oil can absorb some impact energy. ; play a buffer, shock absorption effect.
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