With recent trend of higher output and lighter weight, thermal load on the components of a combustion chamber has become larger. Therefore it is often necessary for engine study of find out the temperature distribution on the combustion chamber wall.
This thesis presents the method of piston temperature measurement and its data under various engine operating conditions. In case of high speed engine, the thermocouple wires must be guided from moving piston to stationary place with careful attention.
For this purpose L-LINK SYSTEM was made and assembled to the passenger car engine on the test bench and then the piston temperature was successfully measured. The tested engine rpm ranged from 1000 to 4000 rpm with 500 rpm increments.
Not only the effect of engine speed and load on the piston temperature but that of the spark timing, detonation, coolant temperature and Reynolds number based on inlet air condition were studied from the measurement obtained by this L-LINK SYSTEM.