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添加劑對(duì)壓燃式天然氣發(fā)動(dòng)機(jī)起動(dòng)性能的影響
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    摘要:

    在壓燃式天然氣發(fā)動(dòng)機(jī)上采用二叔丁基過氧化物（DTBP）添加劑進(jìn)行改善發(fā)動(dòng)機(jī)起動(dòng)性能的試驗(yàn)研究,。結(jié)果表明,，加入一定的DTBP可使壓燃式天然氣發(fā)動(dòng)機(jī)起動(dòng)性能得到較大的改善,。在起動(dòng)工況下，當(dāng)添加的DTBP質(zhì)量分?jǐn)?shù)達(dá)到14.2%（J噴射模式）時(shí),，僅需750℃的電熱塞溫度就能實(shí)現(xiàn)常溫起動(dòng),；當(dāng)電熱塞溫度高于1120℃時(shí),，常溫起動(dòng)的DTBP 質(zhì)量分?jǐn)?shù)可減少到6.7%以下,；過量的添加劑會(huì)導(dǎo)致發(fā)動(dòng)機(jī)工作敲缸。

    Abstract:

    Adopting the Di-tertiary-butyl peroxide as the additive, the starting-up performance of a compressed ignition natural gas engine was studied experimentally. The results show that the starting-up performance of engine is improved by adding certain Di-tertiary-butyl peroxide additives. During starting-up, if the mass fraction of Di-tertiary-butyl peroxide additive reaches to 14.2%, engine ignition can be realized at ambient temperature with a glow plug of 750℃. If the glow plug temperature reaches to 1120℃, engine ignition can be realized at ambient temperature with a mass fraction of Di-tertiary-butyl peroxide additive below 6.7%. However, an excessive additive will lead to the engine knocking.

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鄭清平,張惠明,朱志強(qiáng).添加劑對(duì)壓燃式天然氣發(fā)動(dòng)機(jī)起動(dòng)性能的影響[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2008,39(11):10-12.[J]. Transactions of the Chinese Society for Agricultural Machinery,2008,39(11):10-12.

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