Diesel particulate filter (DPF) air supplement regeneration system and method based on braking energy recovery
A regeneration system, DPF technology, applied in exhaust treatment, exhaust devices, engine components, etc., can solve the problem of large energy ratio, achieve high-efficiency DPF regeneration, solve the problem of air source, ensure economy and emission. Effect
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[0021] Specific embodiments of the present invention are given below. The specific embodiments are only used to further describe the present invention in detail, and do not limit the protection scope of the claims of this application.
[0022] The present invention provides a DPF air supplement regeneration system based on braking energy recovery (see figure 1 , Referred to as system), including an intake system, an exhaust aftertreatment device, a post-DOC temperature sensor 111, a post-DPF temperature sensor 113, an ASC post-oxygen sensor 116 and a diesel injector 129; the intake system includes an intercooler 101, Air cleaner 102 and turbocharger 104; the exhaust aftertreatment device includes DOC110, DPF112, SCR114, ASC115 and ammonia solution injector 117; DOC110 outlet is connected to DOC rear temperature sensor 111, DPF112 outlet is connected to DPF rear temperature sensor 113. The temperature feedback signal is used for the opening and closing of the air supplement heati...
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