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Fresh air bypass for cooling hot exhaust gas in DPF regeneration mode at low vehicle speed and idle
Fresh air bypass for cooling hot exhaust gas in DPF regeneration mode at low vehicle speed and idle
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机译:在DPF再生模式下以低速行驶和怠速时用于冷却热废气的新鲜空气旁路
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摘要
An engine system includes a diesel engine having an exhaust manifold connected to the diesel engine. An exhaust passage is connected to the exhaust manifold, and a diesel particulate filter is disposed in the exhaust passage. An air intake passage is provided for supplying fresh air to the diesel engine. A bypass passage is connected between the air intake passage and the exhaust passage at a location downstream of the diesel particulate filter. The bypass passage includes a bypass control valve for opening and closing the bypass passage during a diesel particulate filter regeneration cycle when the vehicle is at low speed or idling.
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