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Method Of Lubricating An Internal Combustion Engine

a technology of internal combustion engine and compression ignition, which is applied in the direction of lubricant composition, petroleum industry, additives, etc., can solve the problems of increasing scrutiny of certain alkylphenols and products prepared from them, and achieve the effects of reducing soot, reducing deposit formation, and reducing wear

Inactive Publication Date: 2022-02-17
THE LUBRIZOL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention reduces soot, deposits, wear and improves cleanliness in internal combustion engines, particularly those of the compression variety. This is achieved through the use of a special lubricating composition.

Problems solved by technology

However, certain alkylphenols and products prepared from them have come under increased scrutiny due to their association as potential endocrine disruptive materials.

Method used

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  • Method Of Lubricating An Internal Combustion Engine
  • Method Of Lubricating An Internal Combustion Engine
  • Method Of Lubricating An Internal Combustion Engine

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[0163]A series of lubricating compositions are prepared according to Table 1 below. Each composition is formulated to deliver about 1% by weight sulfated ash (ASTM D874) and to have an overall TBN of about 10 (ASTM D2896).

TABLE 1Diesel Lubricant Compositions1CEX1EX1EX210W-3010W-3015W-40Base OilBalance toBalance toBalance to100%100%100%Succinimide dispersant22.02.02.0Borated succinimide dispersant30.330.340.34Aryl amine succinimide0.850.850.85dispersant4Overbased calcium sulphonate00.580.58(metal ratio ~10 TBN = 515)“Neutral” calcium sulphonate00.380.38(metal ratio ~1.2)Overbased calcium sulphonate0.5300(metal ratio ~3 TBN = 160)Overbased magnesium0.440.510.51sulphonateOverbased Calcium sulfur-0.4300coupled phenate“Neutral” Calcium sulfur-0.2500coupled phenateMagnesium alkylene coupled0.3700phenol detergentAromatic amine dispersant0.330.330.33viscosity modifier booster5Secondary ZDDP (C3-6)1.01.01.0Ashless Antioxidants61.41.61.6Other Additives70.180.560.56OCP Viscosity Index Improver...

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Abstract

The invention provides a method of lubricating a compression-ignition internal combustion engine with a maximum laden mass over 2,700 kg comprising supplying to the engine a lubricating composition comprising: an oil of lubricating viscosity, a 300 TBN or higher alkaline earth metal sulphonate detergent having a metal ratio of 10 to 40, 0.1 wt % to 4 wt % of a borated polyisobutylene succinimide dispersant, wherein the polyisobutylene from which the borated polyisobutylene succinimide is derived has a number average molecular weight of 550 to 1150, and 0.1 wt % to 6 wt % of a polyisobutylene succinimide, wherein the polyisobutylene from which polyisobutylene succinimide is derived has a number average molecular weight of 1550 to 2500, 0 wt % to 0.2 wt % of a phenolic based detergent, wherein the total amount of soap delivered by the alkaline earth metal sulphonates (typically calcium sulphonate) is 0.4 to 1 wt % of the lubricating composition, and wherein the lubricating composition has a sulphated ash content of not more than 1.5 wt %.

Description

CROSS REFERENCE TO RELATED APPLICATION[0001]This application is a continuation application of U.S. application Ser. No. 16 / 720,552 filed on Dec. 19, 2019, which is a continuation application of U.S. application Ser. No. 16 / 441,583 filed Jun. 14, 2019, which is a continuation of U.S. application Ser. No. 15 / 110,135 filed on Jul. 7, 2016, which is a national stage application of PCT / US2015 / 010802 filed on Jan. 9, 2015 which claims benefit of 61 / 925,684 filed on Jan. 10, 2014 and U.S. application Ser. No. 15 / 110,106 filed Jul. 7, 2016, which claims priority from PCT Application Serial No. PCT / US2015 / 010793 filed on Jan. 9, 2015, which claims the benefit of U.S. Provisional Application No. 61 / 925,678 filed on Jan. 10, 2014.FIELD OF INVENTION[0002]The invention provides a method of lubricating a compression-ignition internal combustion engine with a maximum laden mass over 2,700 kg comprising supplying to the engine a lubricating composition comprising: an oil of lubricating viscosity, a...

Claims

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Application Information

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IPC IPC(8): C10M161/00C10M163/00C10M167/00
CPCC10M161/00C10M163/00C10M167/00C10M2219/046C10M2223/045C10M2219/082C10N2010/04C10M2207/026C10M2207/028C10M2205/022C10M2219/084C10M2207/262C10M2215/086C10M2215/064C10N2030/52C10N2040/25C10M2215/28C10N2030/42C10N2030/45C10N2030/43C10N2030/06C10M2219/022C10N2020/04C10M2217/06C10N2060/14C10M2205/024C10N2030/04C10N2030/10C10N2040/252C10M2207/027C10M2219/044
Inventor GALIC RAGUZ, MARYLOOP, JOHN G.
Owner THE LUBRIZOL CORP