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5934464 
Journal Article 
Study on active regeneration of DPF by hydraulic load and intake air throttling for mechanical fuel pump equipped diesel engine used in a tractor 
Kim, Y; Pyo, S; Jung, H; Kim, H 
2019 
Korean Society of Automotive Engineers 
27 
2 
109-116 
Korean 
: A method for active DPF regeneration was studied for a mechanical fuel pump that is equipped with an agricultural diesel engine. In this study, intake air throttling and hydraulic load were applied to increase exhaust gas temperature during the regeneration of DPF, and its characteristics were investigated by using both an experimental method and an empirical equation of the PM oxidation rate, as proposed by previous researchers. A high amount of hydraulic load is needed to achieve reliable DPF regeneration, which causes high fuel penalty due to energy loss as hydraulic pressure increases. Intake air throttling is a practical method of increasing exhaust gas temperature without sizeable energy loss. However, the amount of intake air throttling must be determined to prevent the deterioration of the engine performance and reduce emissions. Copyright 2019 KSAE. 
Active regeneration; Diesel particulate filter; Hydraulic load; Intake air throttling; Particulate matter