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method for operating a reagenzmittel - dosierventils and device implementing the method
method for operating a reagenzmittel - dosierventils and device implementing the method
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机译:reagenzmittel-dosierventils的方法和实施该方法的装置
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摘要
The invention relates to a method for operating a metering valve arranged in an exhaust gas region of an internal combustion engine for metering a reagent or a precursor of a reagent, comprising a cooling device to prevent excess temperatures. The invention further relates to a device for carrying out the method. During metering breaks of the regular metering process, a targeted predetermined minimum amount is metered for the cooling of the metering valve, if required.
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