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Lubricant composition

a technology of lubricant composition and composition, applied in the field of formulated ashless lubricant composition, can solve problems such as damage to the catalytic converter of the car

Inactive Publication Date: 2021-03-25
BASF AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent describes a lubricant composition for use in internal combustion engines. The composition contains a base oil and various antioxidants and sulfur-containing additives to improve its performance. The lubricant is designed to be ashless, meaning it does not contain any ash or soot. It is believed that using this lubricant can help to improve engine performance and fuel efficiency.

Problems solved by technology

Engine oils are utilized to lubricate internal combustion engines, but the ash that they contain can damage a car's catalytic converter.

Method used

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  • Lubricant composition
  • Lubricant composition
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Embodiment Construction

[0006]Engine oils are utilized to lubricate internal combustion engines, but the ash that they contain can damage a car's catalytic converter. Ash has also been found to initiate a destructive condition in Gasoline Direct Injected engines that is called Low Speed Pre-Ignition (LSPI). Accordingly, disclosed herein are ashless lubricant compositions that may be utilized to lubricate internal combustion engines. In certain embodiments, a suitable lubricant composition is an ashless internal combustion engine lubricant. Suitable ashless lubricant compositions may comprise, among other optional components, a base oil as well as primary and secondary antioxidants.

[0007]The term “ashless” as used herein may indicate that the lubricant composition comprises less than about 0.5 wt %, less than about 0.4 wt %, less than about 0.3 wt %, less than about 0.2 wt %, less than about 0.1 wt %, less than about 0.05 wt %, less than about 0.01 wt %, less than about 0.001 wt %, less than about 0.0001 wt...

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Abstract

Disclosed herein is a process for lubricating an internal combustion engine with a lubricant composition that may be substantially ash free. The ashless lubricant composition described herein may comprise primary antioxidants, such as aminic diphenyl amines, alkylated phenyl-naphthyl amines, and phenolic antioxidants. The ashless lubricant composition described herein may also comprise sulfur containing products that may work as secondary antioxidants. Other components such as ashless antiwear components, dispersants, pour point depressants, friction modifiers, and metal deactivators may also be used to formulate an ashless lubricant composition according to an embodiment.

Description

FIELD OF THE INVENTION[0001]This disclosure relates to formulated ashless lubricant compositions, methods for using said ashless lubricant compositions in internal combustion engines, and to internal combustion engine systems operating with the lubricant compositions described herein.BACKGROUND OF THE INVENTION[0002]Engine oils are utilized to lubricate internal combustion engines, but the ash that they contain can damage a car's catalytic converter. To prevent this, cars use a simple trap to isolate any particles from the exhaust and contain the ash that they contain. Ash has also been found to initiate a destructive condition in Gasoline Direct Injected engines that is called Low Speed Pre-Ignition (LSPI).OBJECTS AND SUMMARY OF THE INVENTION[0003]In certain embodiments, disclosed is a process for lubricating an internal combustion engine. The process may comprise adding a lubricant composition to an internal combustion engine. The lubricant composition may comprise a base oil, one...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): C10M133/12C10M151/02C10M151/04
CPCC10M133/12C10M151/02C10N2030/10C10M2215/065C10M151/04C10M141/08C10M2201/066C10M2203/1025C10M2205/0285C10M2207/026C10M2207/028C10M2207/262C10M2207/2805C10M2209/1033C10M2215/064C10M2219/022C10M2219/024C10M2219/06C10M2219/066C10M2219/068C10M2219/082C10M2219/084C10M2219/089C10M2219/104C10M2219/106C10M2223/042C10M2223/043C10M2223/045C10M2223/047C10N2040/25C10N2030/40C10N2010/12C10N2010/04C10N2020/02
Inventor HOEY, MICHAELHAYDEN, THOMAS E.SCANLON, EUGENEVAARKAMP, MARINUS
Owner BASF AG
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