Dynamic Temperature Test for PTC Material Used to Heat Diesel

Abstract:

This paper gives a way which utilizes the PTC (positive temperature coefficient) materials to preheat diesel in the injector in order to improve the cold start performance and emissions of engine. Combining high performance data acquisition system based on MSP430F149, a dynamic temperature testing system was developed to test fuel temperature heated by PTC in injector. The software and hardware electrocircuit were expounded in detail. The temperature varying law of diesel fuel heated with PTC ceramics was measured under different voltage. A conclusion can be draw that diesel fuel may be heated to self-defined temperature around Curie point when diesel fuel was heated with PTC material.

• Periodical: Applied Mechanics and Materials (Volumes 321-324)
• Pages: 158-162
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.321-324.158
• Online since: June 2013
• Authors: Jun Wang, Xiao Lu Li
• Keywords: Cold Start, Emission, Injector, PTC

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