Method of Viscosity Control

Method of Viscosity Control

This invention relates to a method of lubricating an internal combustion engine comprising at least one of a crankcase, a gear and a wet-clutch, said method comprising supplying to said crankcase, gear and wet-clutch a lubricating composition comprising: (a) an oil of lubricating viscosity; and (b)...

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Hauptverfasser: GAHAGAN MICHAEL P, PRICE DAVID, GRIFFITHS SIMON J, SAMBUCHINO ROY, WILKES MARK F, BREON LEWIS D, PATEL JAYRAM D
Format: Patent
Sprache:eng
Schlagworte:
BLASTING
CRANKCASE VENTILATING
ENGINE PLANTS IN GENERAL
HEATING
LIGHTING
LUBRICATING INTERNAL COMBUSTION ENGINES
LUBRICATING OF MACHINES OR ENGINES IN GENERAL
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
STEAM ENGINES
WEAPONS
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creator GAHAGAN MICHAEL P
PRICE DAVID
GRIFFITHS SIMON J
SAMBUCHINO ROY
WILKES MARK F
BREON LEWIS D
PATEL JAYRAM D
description This invention relates to a method of lubricating an internal combustion engine comprising at least one of a crankcase, a gear and a wet-clutch, said method comprising supplying to said crankcase, gear and wet-clutch a lubricating composition comprising: (a) an oil of lubricating viscosity; and (b) a viscosity modifier with a number average molecular weight from 1000 to 75,000, wherein the lubricating composition has a SAE viscosity grade from XW-Y, wherein X is from 0 to 20 and Y is from 20 to 50; and wherein the lubricating composition has a phosphorus content from a metal hydrocarbyl dithiophosphate of 0.12 wt % or less.
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and (b) a viscosity modifier with a number average molecular weight from 1000 to 75,000, wherein the lubricating composition has a SAE viscosity grade from XW-Y, wherein X is from 0 to 20 and Y is from 20 to 50; and wherein the lubricating composition has a phosphorus content from a metal hydrocarbyl dithiophosphate of 0.12 wt % or less.</description><language>eng</language><subject>BLASTING ; CRANKCASE VENTILATING ; ENGINE PLANTS IN GENERAL ; HEATING ; LIGHTING ; LUBRICATING INTERNAL COMBUSTION ENGINES ; LUBRICATING OF MACHINES OR ENGINES IN GENERAL ; MACHINES OR ENGINES IN GENERAL ; MECHANICAL ENGINEERING ; STEAM ENGINES ; WEAPONS</subject><creationdate>2010</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20100826&amp;DB=EPODOC&amp;CC=US&amp;NR=2010212624A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20100826&amp;DB=EPODOC&amp;CC=US&amp;NR=2010212624A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>GAHAGAN MICHAEL P</creatorcontrib><creatorcontrib>PRICE DAVID</creatorcontrib><creatorcontrib>GRIFFITHS SIMON J</creatorcontrib><creatorcontrib>SAMBUCHINO ROY</creatorcontrib><creatorcontrib>WILKES MARK F</creatorcontrib><creatorcontrib>BREON LEWIS D</creatorcontrib><creatorcontrib>PATEL JAYRAM D</creatorcontrib><title>Method of Viscosity Control</title><description>This invention relates to a method of lubricating an internal combustion engine comprising at least one of a crankcase, a gear and a wet-clutch, said method comprising supplying to said crankcase, gear and wet-clutch a lubricating composition comprising: (a) an oil of lubricating viscosity; 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recordid cdi_epo_espacenet_US2010212624A1
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subjects BLASTING
CRANKCASE VENTILATING
ENGINE PLANTS IN GENERAL
HEATING
LIGHTING
LUBRICATING INTERNAL COMBUSTION ENGINES
LUBRICATING OF MACHINES OR ENGINES IN GENERAL
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
STEAM ENGINES
WEAPONS
title Method of Viscosity Control
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