G0700-4-1 DPFのフィルター通過性能に関する基礎研究(エンジンシステム部門一般講演(4))

概要

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In order to design diesel engines with higher level of PM removal, mathematical model of internal flow of DPF is developed. The best selection of DPF is enabled by using the result of a measurement to which AIR TEST has been done by using a practically used DPF for the test piece. As a result, because it is shown that the evaluation is possible for "permeability k" that is the inherent characteristic of the filter and obtained the finding concerning internal flow, it reports. DPF is widespread as a effective PM removal method. The restriction of exhaust gas is becoming severe every year, and the PM removal is satisfied in recent years. Moreover, practicable DPF seems for the problem to have disappeared for the catching rate. However, the research on DPF is paid to attention so that the pressure loss may influence the engine performance harmfully. The present study clarifies the passage rate of the basic performance of DPF by the calculation program and AIR TEST.
2010-09-04