Rapid aging test method, system, medium and application of diesel engine dpf system
A rapid aging and DPF technology, applied in the direction of internal combustion engine testing, testing of mechanical components, testing of machine/structural components, etc., can solve the problems of complex methods, large differences in the selection of test conditions, and inconsistent method principles to improve durability and filtration efficiency, shorten the R&D and evaluation cycle, and expand the scope of application
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[0072] 1. DPF rapid aging theory
[0073] Catalytic DPF (Catalytic DPF, CDPF) is a kind of DPF that uses catalytic regeneration as its regeneration principle. At present, CDPF technology has become the main device for diesel engine to control exhaust particles. Based on the device characteristics of CDPF, its thermal aging speed can be accelerated by increasing its working temperature. However, due to the large differences in the use scenarios and technologies of various CDPFs, the rapid aging methods are complicated, and the test conditions vary greatly, so there is a lack of CDPF aging test methods that can be evaluated uniformly. Starting from this point of view, the present invention studies the regeneration and aging mechanism of DPF, and finds a rapid aging method that is universally applicable to all CDPFs, which can complete the aging of CDPF conveniently and efficiently, and provides a basis for the research and development and evaluation of diesel vehicle emission s...
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