公开(公告)号：US20180100114A1

公开(公告)日：2018-04-12

申请号：US15725670

申请日：2017-10-05

Applicant: ExxonMobil Research and Engineering Company

Inventor： Zhisheng Gao ,  Luca Salvi ,  Samuel Flores-Torres

IPC: C10M135/10 ,  C10M129/54 ,  C10M125/24 ,  C10M135/18 ,  C10M171/02

CPC classification number: C10M141/10 ,  C10M125/24 ,  C10M129/54 ,  C10M135/10 ,  C10M135/18 ,  C10M141/08 ,  C10M167/00 ,  C10M169/04 ,  C10M169/042 ,  C10M169/045 ,  C10M171/00 ,  C10M171/02 ,  C10M2203/065 ,  C10M2203/1006 ,  C10M2203/1025 ,  C10M2205/0206 ,  C10M2205/028 ,  C10M2205/0285 ,  C10M2205/04 ,  C10M2205/06 ,  C10M2207/125 ,  C10M2207/262 ,  C10M2207/2805 ,  C10M2207/282 ,  C10M2207/2825 ,  C10M2209/084 ,  C10M2215/28 ,  C10M2217/043 ,  C10M2219/046 ,  C10M2219/068 ,  C10M2223/045 ,  C10M2223/06 ,  C10M2223/10 ,  C10N2210/02 ,  C10N2210/06 ,  C10N2220/04 ,  C10N2230/00 ,  C10N2230/02 ,  C10N2230/04 ,  C10N2230/06 ,  C10N2230/10 ,  C10N2230/12 ,  C10N2230/40 ,  C10N2230/43 ,  C10N2230/52 ,  C10N2240/02 ,  C10N2240/04 ,  C10N2240/20 ,  C10N2240/201 ,  C10N2260/14 ,  C10M2207/144 ,  C10M2219/044 ,  C10N2220/022

Abstract: Provided is a lubricating oil for electric and hybrid vehicles. The lubricating oil includes at least 80 wt % of a lubricating base oil, 0.5 to 5 wt % of one or more dispersants, 0 to 4 wt % of one or more neutral metal detergents, 0 to 1.5 wt % of zinc dialkyldithiophosphate, 0 to 0.2 wt % of molybdenum dialkyldithiocarbamate, 0 to 2 wt % of an active viscosity modifier, and 0.01 to 5 wt % of one or more other lubricating oil additives. The lubricating oil is essentially free of overbased metal detergents. The lubricating oil has an electrical conductivity from 50 to 3,000 pS/m and a kinematic viscosity from 2 to 20 cSt at 100° C. This disclosure also relates to methods for producing the lubricating oil, methods for lubricating electric and hybrid vehicles, and methods for controlling electrical conductivity of a lubricating oil by using conductivity promoters and conductivity inhibitors.

公开(公告)号：US20210238492A1

公开(公告)日：2021-08-05

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.

公开(公告)号：US10829708B2

公开(公告)日：2020-11-10

申请号：US15837340

申请日：2017-12-11

Applicant: ExxonMobil Research and Engineering Company

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

IPC: C10M105/38 ,  C10M105/34 ,  C10M105/36 ,  C10M133/12 ,  C10M137/10 ,  C10M101/04 ,  C10M137/08 ,  G01R33/46 ,  C10N30/10 ,  C10N30/12 ,  C10N30/14 ,  C10N30/02 ,  C10N20/00 ,  C10N30/00 ,  C10N40/25

Abstract: A method for preventing or reducing engine knock or pre-ignition in a high compression spark ignition engine with relatively high oil consumption, lubricated with a lubricating oil by using as the lubricating oil a formulated oil. The formulated oil has a composition that contains a lubricating oil base stock comprising at least one ester including at least one group selected from the group consisting of Formula (1), Formula (2), Formula (3) and Formula (4) below or at least one ester having at least 25% of its carbons in the form of methyl groups: The lubricating oils of this disclosure are useful as passenger vehicle engine oil (PVEO) products.

公开(公告)号：US20190338213A1

公开(公告)日：2019-11-07

申请号：US16512005

申请日：2019-07-15

Applicant: ExxonMobil Research and Engineering Company

Inventor： Zhisheng Gao ,  Luca Salvi ,  Eugine Choi ,  Matthew W. Boland ,  Andrew E. Taggi ,  Andrew D. Satterfield

IPC: C10M169/04 ,  C10M105/36 ,  C10M105/38 ,  C10M133/12 ,  C10M149/22 ,  C10M145/36 ,  C10M137/08 ,  C10M137/10 ,  C10M141/10 ,  C10M157/04

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 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 formula I below: esterified (per —OH basis) with 25 to 100% isobutyric acid and 0 to 75% 3,5,5-trimethylhexanoic acid, wherein R is a H, methyl, ethyl, isopropyl, or isobutyl, and (ii) a minor amount of at least one amine phosphate ashless antiwear additive.

公开(公告)号：US20180171253A1

公开(公告)日：2018-06-21

申请号：US15837340

申请日：2017-12-11

Applicant: ExxonMobil Research and Engineering Company

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

IPC: C10M105/34 ,  C10M105/36 ,  C10M105/38 ,  C10M133/12 ,  C10M137/10 ,  C10M137/08 ,  C10M101/04

Abstract: A method for preventing or reducing engine knock or pre-ignition in a high compression spark ignition engine with relatively high oil consumption, lubricated with a lubricating oil by using as the lubricating oil a formulated oil. The formulated oil has a composition that contains a lubricating oil base stock comprising at least one ester including at least one group selected from the group consisting of Formula (1), Formula (2), Formula (3) and Formula (4) below or at least one ester having at least 25% of its carbons in the form of methyl groups: The lubricating oils of this disclosure are useful as passenger vehicle engine oil (PVEO) products.