公开(公告)号：US20190127656A1

公开(公告)日：2019-05-02

申请号：US16175305

申请日：2018-10-30

Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY

Inventor： Liehpao Oscar Farng ,  Graciela Sanchez Jimenez ,  Mary Dery ,  Paul Odorisio ,  Bridgett Rakestraw ,  Sai Shum ,  David Khoshabo ,  Michael L. Alessi ,  Rebecca Cristine Vieira ,  Andrew Edmund Taggi

IPC: C10M149/22 ,  C10M101/00 ,  C10M107/02 ,  C10M105/06 ,  C10M169/04

Abstract: Disclosed in certain embodiments is a lubricating oil composition comprising an antioxidant polymer (e.g., oligomer) composition comprising repeat units of diphenylamine monomers of formula I wherein R is H, C1-C18 alkyl, C2-C18 alkenyl, C2-C18 alkynyl, —C(O)C1-C18 alkyl, —C(O)aryl and R1, R2, R3 and R4 are each independently H or a linear or branched C1-C18 alkyl, C1-C18 alkoxy, C1-C18 alkylamino, C1-C18 dialkylamino, C1-C18 alkylthio, C2-C18 alkenyl, C2-C18 alkynyl or C7-C21 aralkyl and wherein the number average molecular weight (Mn) of the polymer composition is from about 350 g/mol to about 5000 g/mol.

公开(公告)号：US20190144776A1

公开(公告)日：2019-05-16

申请号：US16175329

申请日：2018-10-30

Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY

Inventor： Liehpao Oscar Famg ,  Graciela Sanchez Jimenez ,  Mary Dery ,  Paul Odorisio ,  Bridgett Rakestraw ,  Sai Shum ,  David Khoshabo ,  Michael L. Alessi ,  Rebecca Cristine Vieira ,  Andrew Edmund Taggi

IPC: C10M169/00

Abstract: Disclosed in certain embodiments is a lubricating grease composition comprising an antioxidant polymer (e.g., oligomer) composition comprising repeat units of diphenylamine monomers of formula I wherein R is H, C1-C18 alkyl, C2-C18 alkenyl, C2-C18 alkynyl, —C(O)C1-C18 alkyl, —C(O)aryl and R1, R2, R3 and R4 are each independently H or a linear or branched C1-C18 alkyl, C1-C18 alkoxy, C1-C18 alkylamino, C1-C18 dialkylamino, C1-C18 alkylthio, C2-C18 alkenyl, C2-C18 alkynyl or C7-C21 aralkyl and wherein the number average molecular weight (Mn) of the polymer composition is from about 350 g/mol to about 5000 g/mol.

公开(公告)号：US20190128157A1

公开(公告)日：2019-05-02

申请号：US16165145

申请日：2018-10-19

Applicant: ExxonMobil Research and Engineering Company

Inventor： Michael L. Alessi ,  Samuel C. Bainbridge ,  Riccardo Conti

IPC: F01M11/10 ,  F02D11/02 ,  F02D41/04

Abstract: Systems and methods are provided for in-situ determination of engine oil viscosity to allow for selection of an engine map by an engine control module (ECM) to match the detected viscosity. The new engine map selected based on the viscosity can correspond to an engine map based on an engine oil with a different HTHS viscosity than the prior engine map. Instead of requiring a reprogramming of an ECM when the engine oil is changed, an ECM can have access to a plurality of engine maps corresponding to different engine oils at a given HTHS viscosity and/or at different HTHS viscosities. The ability of an ECM to select an engine map corresponding to a different HTHS viscosity based on in-situ viscosity detection can allow the oil in an engine to be changed without requiring access to the ECM for reprogramming.

公开(公告)号：US20180274384A1

公开(公告)日：2018-09-27

申请号：US15916612

申请日：2018-03-09

Applicant: ExxonMobil Research and Engineering Company

Inventor： Christopher Vander Neut ,  Steven M. Jetter ,  Michael L. Alessi

IPC: F01D17/08 ,  G01N21/25 ,  G01N21/64 ,  G01N21/85 ,  G01N33/28 ,  G01N21/88 ,  F01D17/26

CPC classification number: F01D17/08 ,  F01D17/26 ,  G01N21/25 ,  G01N21/64 ,  G01N21/645 ,  G01N21/85 ,  G01N21/8806 ,  G01N33/28 ,  G01N33/2888 ,  G01N2021/6439 ,  G01N2201/06193

Abstract: A working fluid monitoring system for monitoring a working fluid of a working fluid system of a piece of equipment. The working fluid monitoring system can include a housing member having a working fluid passage for receiving the working fluid therein and a sensor in operable communication with the working fluid within the working fluid passage of the housing member configured to monitor in situ the working fluid and output a sensor signal. The working fluid monitoring system can be quickly and conveniently retrofitted to existing machinery for in situ monitoring, detecting, testing, and/or validating of a working fluid, such as oil, hydraulic fluid, and the like.

公开(公告)号：US20180037841A1

公开(公告)日：2018-02-08

申请号：US15667066

申请日：2017-08-02

Applicant: ExxonMobil Research and Engineering Company

Inventor： Michael L. Alessi ,  Steven M. Jetter ,  Steven Kennedy ,  Sarah E. Parker ,  Van An Du

IPC: C10M169/04 ,  C10M159/12 ,  C10M101/02

CPC classification number: C10M169/041 ,  C10M101/02 ,  C10M133/56 ,  C10M149/06 ,  C10M159/12 ,  C10M2203/003 ,  C10M2203/1006 ,  C10M2203/1025 ,  C10M2205/022 ,  C10M2205/0285 ,  C10M2207/34 ,  C10M2215/28 ,  C10M2217/043 ,  C10M2217/06 ,  C10N2230/02 ,  C10N2230/06 ,  C10N2230/54 ,  C10N2230/68 ,  C10N2240/10 ,  C10N2240/102 ,  C10N2240/104 ,  F01M9/02 ,  C10N2220/022 ,  C10M2205/024 ,  C10M2209/084 ,  C10N2260/09 ,  C10M2205/08 ,  C10M2209/086

Abstract: Provided are lubricating engine oils including a lubricating oil base stock as a major component having a base oil viscosity at 100 deg. C. ranging from 4.5 to 7.5 cSt, and a carboxylic functionalized polymer dispersant with aromatic amine functionality, as a minor component, wherein the lubricating engine oils have a cold crank simulator viscosity at −30 deg. C. of less than 8500 mPa·s. The lubricating engine oils may provide improved engine wear protection at equivalent fuel efficiency or improved fuel efficiency at equivalent engine wear protection compared to a lubricating engine oil containing a dispersant as a minor component other than the carboxylic functionalized polymer with aromatic amine functionality. Methods of making the lubricating engine oil are also provided. The lubricating engine oils are useful in internal combustion engines including direct injection, gasoline and diesel engines.