EP 3851508 A1 20210721 - METHOD OF LUBRICATING AN INTERNAL COMBUSTION ENGINE

Title (en)

METHOD OF LUBRICATING AN INTERNAL COMBUSTION ENGINE

Title (de)

VERFAHREN ZUM SCHMIEREN EINER BRENNKRAFTMASCHINE

Title (fr)

PROCÉDÉ DE LUBRIFICATION D'UN MOTEUR À COMBUSTION INTERNE

Publication

EP 3851508 A1 20210721 (EN)

Application

EP 21150240 A 20170828

Priority

US 201662394235 P 20160914
EP 17761777 A 20170828
US 2017048843 W 20170828

Abstract (en)

The disclosed technology provides a lubricating composition and a method of lubricating an internal combustion engine where the lubricating composition contains an oil of lubricating viscosity, one or more metal-containing, sulfur-free, alkyl-phenol based detergents, an alkaline earth metal sulfonate detergent, a polyisobutenyl succinimide dispersant, and a dispersant viscosity modifier having a number average molecular weight of at least 20,000. The lubricating composition of the present invention can be formulated to have lower HTHS viscosity, and reduced phosphorous content, while providing protection against adhesive wear.

IPC 8 full level

C10M 167/00 (2006.01); C10N 20/04 (2006.01); C10N 30/00 (2006.01); C10N 30/02 (2006.01); C10N 30/06 (2006.01); C10N 40/25 (2006.01); C10N 40/26 (2006.01)

CPC (source: EP US)

C10M 133/56 (2013.01 - US); C10M 159/18 (2013.01 - US); C10M 159/22 (2013.01 - US); C10M 159/24 (2013.01 - US); C10M 167/00 (2013.01 - EP US); C10M 2203/1025 (2013.01 - EP US); C10M 2205/02 (2013.01 - EP US); C10M 2205/0285 (2013.01 - EP US); C10M 2205/04 (2013.01 - EP US); C10M 2205/173 (2013.01 - EP US); C10M 2207/026 (2013.01 - EP US); C10M 2207/027 (2013.01 - EP US); C10M 2207/028 (2013.01 - EP US); C10M 2207/144 (2013.01 - EP US); C10M 2207/262 (2013.01 - EP US); C10M 2215/064 (2013.01 - EP US); C10M 2215/28 (2013.01 - EP US); C10M 2219/044 (2013.01 - EP US); C10M 2219/046 (2013.01 - EP US); C10M 2219/087 (2013.01 - EP US); C10M 2219/088 (2013.01 - EP US); C10M 2219/089 (2013.01 - EP US); C10M 2223/045 (2013.01 - EP US); C10N 2010/04 (2013.01 - US); C10N 2020/02 (2013.01 - US); C10N 2020/04 (2013.01 - EP US); C10N 2030/02 (2013.01 - EP US); C10N 2030/04 (2013.01 - US); C10N 2030/06 (2013.01 - EP US); C10N 2030/40 (2020.05 - EP US); C10N 2030/42 (2020.05 - EP US); C10N 2040/25 (2013.01 - EP US); C10N 2040/251 (2020.05 - EP US); C10N 2040/252 (2020.05 - EP US); C10N 2040/253 (2020.05 - EP US); C10N 2040/255 (2020.05 - EP US); C10N 2040/26 (2013.01 - EP US)

Citation (applicant)

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Citation (search report)

[X] WO 2015106090 A1 20150716 - LUBRIZOL CORP [US]
[I] WO 2016070002 A1 20160506 - LUBRIZOL CORP [US]
[A] WO 2009085800 A1 20090709 - LUBRIZOL CORP [US], et al
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Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

WO 2018052692 A1 20180322; CA 3036103 A1 20180322; CN 109790481 A 20190521; EP 3512926 A1 20190724; EP 3512926 B1 20210217; EP 3851508 A1 20210721; EP 3851508 B1 20221228; US 2019185778 A1 20190620

DOCDB simple family (application)

US 2017048843 W 20170828; CA 3036103 A 20170828; CN 201780054185 A 20170828; EP 17761777 A 20170828; EP 21150240 A 20170828; US 201716330277 A 20170828