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    Fuel compositions for controlling combustion in engines
    11.
    发明授权
    Fuel compositions for controlling combustion in engines 有权

    公开(公告)号：US11220648B2

    公开(公告)日：2022-01-11

    申请号：US16777955

    申请日：2020-01-31

    Applicant: ExxonMobil Research and Engineering Company

    Inventor： Eugine Choi ,  Matthew W. Boland ,  Zhisheng Gao ,  Luca Salvi ,  Shamel Merchant ,  Bruce W. Crawley

    IPC: C10L10/10 ,  C10L1/02 ,  C10L1/16

    Abstract: Naphtha boiling range compositions are provided that can have improved combustion properties (relative to the research octane number of the composition) in spark ignition engines and/or compression ignition engines. The improved combustion properties can be achieved by controlling the total combined amounts of n-paraffins and isoparaffins that include a straight-chain propyl group (R1—CH2—CH2—CH2—R2). For such a straight-chain propyl group, R2 can correspond to any convenient CxHy group that can appear in a paraffin or isoparaffin. R1 can correspond to a hydrogen atom, making the straight-chain propyl group a terminal n-propyl group; or R1 can correspond to any convenient CxHy group that can appear in a paraffin or isoparaffin.

    METHOD AND COMPOSITION FOR PREVENTING OR REDUCING ENGINE KNOCK AND PRE-IGNITION IN HIGH COMPRESSION SPARK IGNITION ENGINES
    13.
    发明申请
    METHOD AND COMPOSITION FOR PREVENTING OR REDUCING ENGINE KNOCK AND PRE-IGNITION IN HIGH COMPRESSION SPARK IGNITION ENGINES 审中-公开

    公开(公告)号：US20180057769A1

    公开(公告)日：2018-03-01

    申请号：US15792159

    申请日：2017-10-24

    Applicant: ExxonMobil Research and Engineering Company

    Inventor： Zhisheng Gao ,  Luca Salvi ,  Eugine Choi ,  Matthew W. Boland

    IPC: C10M169/04 ,  C10M105/38 ,  C10M137/08

    Abstract: A method for preventing or reducing engine knock or pre-ignition in a high compression spark ignition engine lubricated with a lubricating oil by introducing to a combustion chamber of the engine from 0.1 to 5% by volume of the gasoline used a lubricating oil as a formulated oil, said formulated oil having a composition comprising (i) a major amount of a lubricating oil base stock comprising at least 80% by weight of one branched ester having at least 15% of the total carbons in the form of methyl groups, and (ii) a minor amount of at least one ashless amine phosphate antiwear additive. Also provided is a lubricating engine oil for high compression spark ignition engines including (i) a major amount of a lubricating oil base stock comprising at least 80% by weight a trimethylol propane ester of 50:50 mixture of isobutyric acid and 3,5,5-trimethylhexanoic acid and (ii) a minor amount of at least one amine phosphate ashless antiwear additive.

    COMPOSITION AND METHOD FOR PREVENTING OR REDUCING ENGINE KNOCK AND PRE-IGNITION IN HIGH COMPRESSION SPARK IGNITION ENGINES
    14.
    发明申请
    COMPOSITION AND METHOD FOR PREVENTING OR REDUCING ENGINE KNOCK AND PRE-IGNITION IN HIGH COMPRESSION SPARK IGNITION ENGINES 审中-公开
    用于防止或减少高压发动机点火发动机的发动机起动和预警的组合物和方法

    公开(公告)号：US20170009179A1

    公开(公告)日：2017-01-12

    申请号：US15198120

    申请日：2016-06-30

    Applicant: ExxonMobil Research and Engineering Company

    Inventor： Jason Z. Gao ,  Eugine Choi ,  Matthew W. Boland ,  Luca Salvi

    IPC: C10M169/04

    CPC classification number: C10M169/04 ,  C10M169/044 ,  C10M2207/2825 ,  C10M2207/2835 ,  C10M2209/108 ,  C10M2215/02 ,  C10M2215/06 ,  C10M2215/064 ,  C10M2215/065 ,  C10M2217/00 ,  C10M2223/04 ,  C10M2223/043 ,  C10M2223/047 ,  C10N2220/028 ,  C10N2230/00 ,  C10N2230/06 ,  C10N2230/10 ,  C10N2230/45 ,  C10N2230/76 ,  C10N2240/10 ,  C10N2240/101 ,  C10N2240/104 ,  C10M2209/105 ,  C10N2230/04

    Abstract: A method for preventing or reducing engine knock or pre-ignition in a high compression spark ignition engine lubricated with a lubricating oil by using as the lubricating oil a formulated oil. The formulated oil has a composition that contains (i) a lubricating oil base stock comprising at least one branched ester having at least about 15% of the total carbons in the form of methyl groups, and (ii) at least one ashless antiwear additive selected from a phosphorus-containing ashless antiwear additive, a sulfur-containing ashless antiwear additive, and a phosphorus/sulfur-containing ashless antiwear additive. A lubricating engine oil having a composition that contains (i) a lubricating oil base stock comprising at least one branched ester having at least about 15% of the total carbons in the form of methyl groups, and (ii) at least one ashless antiwear additive selected from a phosphorus-containing ashless antiwear additive, a sulfur-containing ashless antiwear additive, and a phosphorus/sulfur-containing ashless antiwear additive. The lubricating oils of this disclosure are useful as passenger vehicle engine oil (PVEO) products.

    Abstract translation: 一种用于通过使用配制的油作为润滑油在用润滑油润滑的高压缩火花点火发动机中防止或减少发动机爆震或预点燃的方法。 所配制的油具有以下组成：（i）润滑油基础油料，其包含至少一种具有甲基形式的总碳至少约15％的支链酯，和（ii）至少一种无灰抗磨添加剂， 来自含磷无灰抗磨添加剂，含硫无灰抗磨添加剂和含磷/硫的无灰抗磨添加剂。 一种润滑发动机油，其组合物包含（i）润滑油基础油料，其包含至少一种具有甲基形式的总碳的至少约15％的支链酯，和（ii）至少一种无灰抗磨添加剂 选自含磷无灰抗磨添加剂，含硫无灰抗磨添加剂和含磷/硫的无灰抗磨添加剂。 本公开的润滑油可用作乘用车发动机油（PVEO）产品。

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