Introduction to knowledge - bearing lubrication way

Four stroke motorcycle engine lubrication way supply of lubricating oil, could be divided into two kinds of pressure lubrication and splash lubrication. Early engine widely used splash lubrication, the use of the crank stir up the oil, the oil droplets to jilt after apply machine parts lubrication. In order to increase the splash out the amount of oil, are generally will crank design is longer than the other. Splash lubrication has the advantages of simple structure, good for engine of lightweight. But the lubrication effect is often poor, especially for the bearing cannot be sufficient lubrication oil from the outside. Especially for overhead valve engine, to come out of the oil to reach all parts in the cylinder head. For the integral crankshaft and bearing bush of the engine, also exists the lubrication problem. In addition, with the improvement of engine speed, the crank to jilt oil resistance is more and more big, large power loss. At the same time, the crank to jilt oil oil will make early ageing, and easy to make bubbles with the oil. In order to solve the above problems, most modern engines have adopted pressure lubrication methods. Is increasing on the engine oil pump, the use of oil pump of the engine oil pressure forced to supply all lubricating points. As far as possible in order to simplify the engine structure, pressure lubrication is general and splash lubrication. On the engine, for example, a real lubrication pressure on the crankshaft journal, camshaft and other components, and small head, cylinder, piston connecting rod, rocker arm etc is to use the splash out after pressure lubrication oil for lubrication. 【 The bearing network]