TEMPERATURE DISTRIBUTION OF PISTON RINGS AND PISTON IN HIGH SPEED DIESEL ENGINE.

Abstract

The temperature of piston rings and pistons were measured directly and accurately in high speed diesel engines under actual operating conditions by means of thermocouples. As a result, concerning the heat flow pattern and the flow rate, interesting differences among the top, the second and the oil rings, and also between the plain and the taper faced ring were revealed. In addition, the amount of heat transferred to the piston, and the percentage of each heat released from the piston to other parts were determined.