Exxonmobil Research and Engineering Company

Exxonmobil Technology and Engineering Company

Exxonmobil Chemical Patents Inc.

Kevin John Kelly

Douglas Edward Deckman

Vincent Mark Carey

Kevin L Crouthamel

Mark Paul Hagemeister

Andrew Edmund Taggi

Phillip Thomas Matsunaga

Shuji Luo

Chon-Yie Lin

Kevin Bruce Stavens

Charles James Ruff

Bruce Allan Harrington

Craig Janzen Emett

Keith Preston Saddler

Richard Wayne Martin

Gary Christensen

Heinrich R Braun

Behrouz Engheta

Tobias Klande

Liehpao O Farng

Evelyn N Drake

Peter Calcavecchio

Smruti A Dance

David G L Holt

Paul Thomas Reischman

Gordon H Lee

Benjamin Daniel Eirich

Marcia G Rogers

Haris Junuzovic

Daniel Bien

Kevin A Chinn

Ahmed F Abou El Enein

Camille A Killian

Nancy Ortiz

Kevin Louis Crouthamel

Evelyn Nobles Drake

Leihpao Oscar Farng

Disclosed are thermal management fluids for electric systems and methods of application. An example thermal management fluid may comprise: a base oil as a major component, wherein the base oil has both of the following enumerated properties: (i) a branch content of about 15 mol. % to about 30 mol. %; and (ii) a naphthene content of about 30 wt. % or less.

High thermal conductivity hydrocarbon thermal management fluids for electric vehicles

This disclosure relates to heat transfer fluids for use in heat transfer systems. The heat transfer fluids comprise at least one non-aqueous dielectric heat transfer fluid. The non-aqueous dielectric heat transfer fluid has density (&#x3c1;), specific heat (c), and dynamic viscosity (&#x3bc;) properties. The heat transfer fluids have a normalized effectiveness factor (NEF) as determined by the following equation: wherein DEFis a dimensional effectiveness factor for the heat transfer fluid that is determined based on an equation designated in Table 1 below for a selected pump and a selected heat transfer circuit dominant flow regime; wherein DEFis a dimensional effectiveness factor for a reference fluid that is determined using the same equation designated in Table 1 for DEFabove for the same selected pump and the same selected heat transfer circuit dominant flow regime; and wherein the heat transfer fluid has a NEFvalue equal to or greater than 1.0. This disclosure also provides a method for improving performance of a heat transfer system, a method for improving performance of an apparatus, and a method for selecting a heat transfer fluid for use in a heat transfer system. The heat transfer fluids and methods of this disclosure are applicable in situations where the heat transfer system is dominated by heat conveyance.

Heat transfer fluids and methods of use

This disclosure relates to heat transfer fluids for use in heat transfer systems. The heat transfer fluids comprise at least one non-aqueous dielectric heat transfer fluid. The non-aqueous dielectric heat transfer fluid has density (&#x3c1;), specific heat (c), and dynamic viscosity (&#x3bc;) properties. The heat transfer fluids have a normalized effectiveness factor (NEF) as determined by the following equation:  wherein DEFis a dimensional effectiveness factor for the heat transfer fluid that is determined based on an equation designated in Table 1 below for a selected pump and a selected heat transfer circuit dominant flow regime; wherein DEFis a dimensional effectiveness factor for a reference fluid that is determined using the same equation designated in Table 1 for DEFabove for the same selected pump and the same selected heat transfer circuit dominant flow regime; and wherein the heat transfer fluid has a NEFvalue equal to or greater than 1.0. This disclosure also provides a method for improving performance of a heat transfer system, a method for improving performance of an apparatus, and a method for selecting a heat transfer fluid for use in a heat transfer system. The heat transfer fluids and methods of this disclosure are applicable in situations where the heat transfer system is dominated by heat conveyance.

Provided is a non-Newtonian engine oil lubricant composition with improved fuel efficiency and engine wear protection. The lubricant composition includes a major amount of a base oil including a Group II base stock and an optional Group V base stock, from 0.1 to 9.0 wt. % of at least one viscosity modifier and from 0.1 to 1.2 wt. % of at least one friction modifier. The non-Newtonian engine oil lubricant composition has a kinematic viscosity at 100 deg. C. of less than or equal to 10 cSt and an HTHS (ASTM D4683) of less than or equal to 2.2 cP at 150&#xb0; C. Also provided are methods of using the lubricant composition in internal combustion engines and methods of making the lubricant composition.

Non-newtonian engine oil with superior engine wear protection and fuel economy

A method for improving wear control, while maintaining or improving deposit control and fuel efficiency, in an engine lubricated with a lubricating oil by using as the lubricating oil a formulated oil. The formulated oil has a composition including a lubricating oil base stock as a major component, and at least one dispersant and a mixture of viscosity modifiers, as minor components. The at least one dispersant is a polyalkenyl succinic derivative and at least one viscosity modifier is a vinyl aromatic-containing polymer or copolymer. A lubricating engine oil having a composition including a lubricating oil base stock as a major component, at least one dispersant and a mixture of viscosity modifiers, as minor components. The lubricating engine oils are useful in internal combustion engines including direct injection, gasoline and diesel engines.

Lubricating oil compositions with engine wear protection

This invention is directed to passenger car engine oil compositions comprising in admixture 60 wt % to 90 wt % of a first base oil component, based on the total weight of the composition, the first base oil component consisting of a polyalphaolefin base stock or combination of polyalphaolefin base stocks, each having a kinematic viscosity at 100&#xb0; C. of from 3.2 cSt to 3.8 cSt; 0.1 wt % to 20 wt % of a second base oil component, based on the total weight of the composition, the second base oil component consisting of a Group II, Group III or Group V base stock, or any combination thereof; and at least 0.75 wt % viscosity index improver, on a solid polymer basis.

High efficiency engine oil compositions

This invention is directed to ultra-low viscosity passenger car engine oil compositions with a kinematic viscosity at 100&#xb0; C. of from 4 to 6 cSt, and comprising in admixture 60 wt % to 90 wt % of a first base oil component, based on the total weight of the composition, the first base oil component consisting of a polyalphaolefin base stock or combination of polyalphaolefin base stocks, each having a kinematic viscosity at 100&#xb0; C. of from 3.2 cSt to 3.8 cSt; and 0.1 wt % to 20 wt % of a second base oil component, based on the total weight of the composition, the second base oil component consisting of a Group II, Group III or Group V base stock, or any combination thereof; wherein the composition comprises from 0 wt % to less than 0.25 wt % viscosity index improver, on a solid polymer basis.

Low viscosity engine oil compositions

This invention is directed to lubricating compositions comprising a first base oil component consisting of a polyalphaolefin base stock or combination of polyalphaolefin base stocks, each having a kinematic viscosity at 100&#xb0; C. of from 3.2 cSt to 3.8 cSt and obtained by a process comprising: (a) contacting a catalyst, an activator, and a monomer in a first reactor to obtain a first reactor effluent, the effluent comprising a dimer product, a trimer product, and optionally a higher oligomer product, (b) feeding at least a portion of the dimer product to a second reactor, (c) contacting said dimer product with a second catalyst, a second activator, and optionally a second monomer in the second reactor, (d) obtaining a second reactor effluent, the effluent comprising at least a trimer product, and (e) hydrogenating at least the trimer product of the second reactor effluent.

Lubricating compositions

The invention relates to oil compositions containing chromium catalyzed high viscosity index polyalphaolefins (HVI-PAO). In one embodiment the oil formulation comprises a chromium catalyzed HVI-PAO with a viscosity greater than 125 cSt kv 100&#xb0; C. and a viscosity index greater than 100, a second base stock with a viscosity of at least 2 cSt kv 100&#xb0; C. and less than 60 cSt kv 100&#xb0; C. wherein the second base stock is at least 120 cSt kv 100&#xb0; C. less than the chromium HVI-PAO, an ester with a viscosity of at least 2 and less than 6, the ester chosen from the group consisting of monoester, di-octyl sebacate and any combination thereof comprising more than 10 weight percent and less than 30 weight percent of the oil formulation, the oil formulation having a viscosity index of greater than 180.

Chromium HVI-PAO bi-modal lubricant compositions

An improved lubricating composition suitable for diesel engines comprising a major amount of at least one oil of lubricating viscosity and a minor amount of an alkylamine-alkylphosphate additive. The alkylamine-alkylphosphate additive comprises from at least 1.25 equivalents of alkylamine to 1.0 equivalents of alkylphosphate.

Lubricating composition suitable for diesel engines

A marine diesel engine system includes a diesel engine having a plurality of cylinders. The system also includes, proximate the engine, a primary engine lubricant and an additive selected from certain alkylamine-alkylphosphates, 500 TBN calcium sulfonate and mixtures thereof. A means for blending the lubricant and additives into a mixture for introduction into a cylinder is provided. Thus lubricant properties may be modified depending upon engine conditions.

Modification of lubricant properties in an operating all loss lubricating system

A device and a method for the modification of an operating all-loss engine lubricant's properties in response to actual engine operating conditions. The present invention is a method that comprises (1) monitoring the specific engine parameter(s) of interest, or in the alternative, predicting those parameter(s) from other engine inputs for a crosshead diesel engine; (2) calculating from said parameter(s) or input(s) the amount of performance enhancer(s), base lubricant or alternatively formulated lubricant that need be added to the engine's base lubricant; and (3) modifying said base lubricant with said performance enhancers, additional base lubricant or alternatively formulated lubricant before introduction the combination into said monitored part or location.

A device and a method for real time optimizing engine lubricating oil properties in response to actual engine operating conditions. the present invention is a method that comprises measuring, directly or indirectly, a system parameter of interest near a location of interest, calculating from said parameter(s) or input(s) the amount of a secondary fluid selected from performance enhancer(s), additional base lubricant, alternatively formulated lubricant or diluent that need be added to the base lubricant; and supplementing said base lubricant with said secondary fluid before introducing the combination into said monitored location.

Modification of lubricant properties in a recirculating lubricant system

A method to employ instrumentation to effectuate variation in lubricant flow rate or properties in response to actual engine conditions. Preferably, the present invention provides a method for the in situ monitoring of the lubricating oil's effectiveness in a two-stroke diesel engine by measuring the used lubricant's Fe content and fuel sulfur content with XRF technology and the used lubricant's BN with an IR measurement device, and for efficiently modifying the lubricant's properties and/or flow rate to the equipment in response to the actual wear or corrosion needs of the machinery or engine.

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Mullica Hill, NJ, United States of America

Kevin John Kelly