Contain information about : Determining Cranked on Internal combustion engine. There were many methods developed for determination of TDC position during the time. In principle, it is possible to divide these methods in two groups: static (engine is stopped) dynamic (engine is running). Other solution of engine cranking without combustion is necessary in contrary case. For example: the test bed will be equip with electric motor. From the previous experiments on this engine was found out that the piston assembly reach in warm up state better tightness. In this engine temperature state it is possible to obtain less losses of suck air in combustion chamber around the piston assembly as well as less distortion of in-cylinder pressure course. t is visible from this course that from the first to sixth or seventh cycle – the whole system (engine and the rotating parts of dynamometer) have been started up (it is depicted in Figure 2 by arrow). Data from 10 cycles of indicated cylinder in cold engine temperature state are in this phase informative. They serve for appropriate confrontation of preliminary TDC position of engine in cold state and finally TDC position. The differences are in interval from 1 to 2 samples. For the determination of TDC position of engine cranking by own starter, it is necessary to solve at least two kinds of problems. It is a small revolution of engine crankshaft, which causes the big losses of suck air from combustion chamber around the piston assembly.
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Tags : internal combustion engine, piston assembly, engine crankshaft, combustion chamber, static engine, cold state, assembly source, cold engine, engine temperature, cylinder pressure, dynamometer, crankshaft, test bed, piston, two kinds
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