Design of a temperature field measuring system for cylinder heads and cylinder liners of vehicle engines

The temperature of combustion chamber is very high when vehicle engine is working. There is recycled water inside the diesel engine head and cylinder sleeve for cooling and the design of water cavity will decide the cooling effect of engine head and cylinder liner directly. If the temperature of the inner wall of combustion chamber can be measured, it will provide reliable data to the cooling effect of water cavity of diesel engine head and cylinder liner. To get the temperature field distribution of engine cylinder head and cylinder liner, a temperature testing system is designed in this paper based on storage testing technology. The temperature changing rules of cylinder head and cylinder liner under multiple conditions are acquired. In this paper, a part of temperature data at different engine speeds and volume powers are given by experiments, and the simple analyses are carried out. This testing system has the advantages of multi-channel inputs, good synchronicity, and the test results are accurate and reliable.