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基于電控調(diào)壓器的壓縮天然氣發(fā)動機電控系
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and Experiment on the Electric Control System Based on EPR for the CNG Engine
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    摘要:

    針對國Ⅳ及以上排放標(biāo)準(zhǔn),，設(shè)計了基于電控調(diào)壓器的重型車用稀燃增壓壓縮天然氣發(fā)動機電控系統(tǒng),，闡述了燃?xì)夤┙o系統(tǒng),、進氣管理系統(tǒng)和點火系統(tǒng)的結(jié)構(gòu)特點和控制原理,。闡述了電控調(diào)壓系統(tǒng)原理,，及其相對于噴射系統(tǒng)的優(yōu)勢,。發(fā)動機試驗結(jié)果表明,，其最大功率和最大轉(zhuǎn)矩都與原型柴油機相當(dāng),，而排放達到國Ⅳ標(biāo)準(zhǔn),。

    Abstract:

    In order to meet the stage-Ⅳ emission standard in China, a electric control system based on EPR (electronic pressure regulator) for the lean-burn turbocharging heavy-duty automotive CNG engine was developed. The configuration and control principle of the CNG supply system, the intake management system and the ignition system were analyzed. By comparing with the multi-points injection system and single-point injection system, the principle and advantage of the EPR were analyzed. The Experiment indicates that the maximal power and the maximal torque of the CNG engine are close to those of the original diesel engine, and the emissions meet the stage-Ⅳ emission standard in China.

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王都,宋君花,冒曉建,卓斌.基于電控調(diào)壓器的壓縮天然氣發(fā)動機電控系[J].農(nóng)業(yè)機械學(xué)報,2009,40(3):46-50. and Experiment on the Electric Control System Based on EPR for the CNG Engine[J]. Transactions of the Chinese Society for Agricultural Machinery,2009,40(3):46-50.

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