Rancang Bangun Alat Peraga Injektor Mesin Diesel
DOI:
https://doi.org/10.25170/jpk.v3i04.7934Keywords:
Diesel injector, Common rail system, Teaching aid, Engineering education, Fuel atomizationAbstract
The injector is a critical component in diesel engines that governs combustion efficiency through fuel atomization. In engineering education, understanding common rail systems is often constrained by the complexity of internal mechanisms and the safety risks associated with high-pressure engine operation. This study aims to design and develop an injector teaching aid as a safe and interactive learning medium. A design-and-build approach was employed, including conceptual and detailed design using AutoCAD, followed by prototype development. The system integrates key components, namely a 4D56 injector, DLLP nozzle, manual hand pump tester, and a CR-C common rail injector tester, mounted on an angle steel frame (110 × 55 × 75 cm). Experimental results indicate that the apparatus is capable of consistently exhibiting a conical spray pattern with a pressure stability of <10% and an actuator response of <3 ms, rendering it effective for laboratory-based learning
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