Exploration and Reform of Experiment Teaching of Common Rail Injector Temperature Increase Measurement

Abstract

Abstract: The measurement of the temperature increase of the common rail (CR) injector is the focus of the experimental teaching of testing technology in the power engineering specialty. Four measurement points of the injector control room and the nozzle wall were selected, and two methods of traditional thermocouple measurement and new infrared thermal imager measurement were used to measure the temperature of the wall measurement points. Based on the experimental data, the accuracy of the measurement method was analyzed. The experimental teaching effect shows that the comparison and demonstration of various test and measurement devices and methods has broadened the experimental teaching path, which is more innovative and diverse than the traditional single experimental teaching device and experimental method, it can mobilize students' enthusiasm and scientific research interest, strengthen students' understanding and mastery of basic theories.

Key words: Testing technology, Experiment teaching, Common rail injector, Transient temperature increase, Measurement methods, Accuracy evaluation

CLC Number:

G643
TK-4

ZHAO Jianhui, DU Jingtao, LIU You, WANG Guixin. Exploration and Reform of Experiment Teaching of Common Rail Injector Temperature Increase Measurement[J]. The Theory and Practice of Innovation and Enntrepreneurship, 2022, 5(22): 161-164.

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