The Development of the Fuel Injector Tester for Gasoline Engine

Abstract

The objectives of this research were to: 1) develop a fuel injector tester for gasoline engine, 2) determine the efficiency of the fuel injector tester for gasoline engine, and 3) study the satisfaction of experts with the fuel injector tester for gasoline engine. The sample group used in this research included 7 operators, with knowledge and skills in inspecting gasoline engine fuel injection systems in Toyota Muang Khon Company selected by purposive sampling technique. The research instruments were the results recording forms and the satisfaction questionnaires. The statistics used in this research was mean and standard deviation.

According to the research results, the developed gasoline injector tester was able to: 1) check the leakage of the injector, 2) test the operation of the solenoid, 3) test the nebulization, and 4) test the injection volume. The satisfaction assessment results by 3 experts showed that the first aspect on the tool's properties was at a very good level. The second aspect with the results obtained from the created tool was at a very good level. The third aspect included the suitability of the design, material selection, and construction were in a very good level. The overall satisfaction in all 3 aspects was in a very good level.