EP 1051467 A1 20001115 - MARINE LUBRICANT FOR TWO-STROKE ENGINE
Title (en)
MARINE LUBRICANT FOR TWO-STROKE ENGINE
Title (de)
SCHMIERMITTEL FÜR SCHIFFSZWEITAKTMOTOREN
Title (fr)
LUBRIFIANT MARIN POUR MOTEUR DEUX TEMPS
Publication
Application
Priority
- FR 9900181 W 19990129
- FR 9801127 A 19980202
Abstract (en)
[origin: US6528459B1] The invention concerns a lubricant for a two-stroke slow speed crosshead marine engine, powered with a fuel with sulfur content not less than 1%, consisting of a mixture of distillates used as lubricating bases containing x wt. % of dispersing additive of the succinimide type, y wt. % of an overbased detergent additive of the sulfonate type, and z wt. % of an overbased detergent additive of the phenate type. The invention is characterized in that x, y and z are selected in the intervals 0.5<=x<=2.5, 2.5<=y<=10 and 11<=z<=24.5 such that 15<=x+y+z<=36 and 1.5<=y/x<=13, the BN of the lubricant, determined according to the ASTM D-2896 standard, is not less than 70 mg KOH/g, and the speed at which sulfuric acid is neutralized by the lubricant, defined by the maximum speed of pressure increase of a closed chamber, with its walls covered with a film of said lubricant from 80 to 100 mum thick, maintained at 100° C., wherein is introduced a known amount of sulfuric acid, has a value not less than 11x102 Pa/s at 100° C.
IPC 1-7
IPC 8 full level
C10M 163/00 (2006.01); C10N 30/04 (2006.01); C10N 40/26 (2006.01); C10N 60/14 (2006.01)
CPC (source: EP KR US)
C10M 163/00 (2013.01 - EP KR US); C10M 2207/28 (2013.01 - EP US); C10M 2215/28 (2013.01 - EP US); C10M 2219/046 (2013.01 - EP US); C10M 2219/089 (2013.01 - EP US); C10N 2030/12 (2013.01 - EP US); C10N 2040/26 (2013.01 - EP US)
Citation (search report)
See references of WO 9938940A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
US 6528459 B1 20030304; AT E222943 T1 20020915; CA 2320332 A1 19990805; DE 69902631 D1 20021002; DE 69902631 T2 20030410; DK 1051467 T3 20030106; EP 1051467 A1 20001115; EP 1051467 B1 20020828; ES 2179614 T3 20030116; FR 2774387 A1 19990806; FR 2774387 B1 20001201; JP 2002501974 A 20020122; KR 100655004 B1 20061207; KR 20010040538 A 20010515; PT 1051467 E 20030131; WO 9938940 A1 19990805
DOCDB simple family (application)
US 60015800 A 20000918; AT 99901656 T 19990129; CA 2320332 A 19990129; DE 69902631 T 19990129; DK 99901656 T 19990129; EP 99901656 A 19990129; ES 99901656 T 19990129; FR 9801127 A 19980202; FR 9900181 W 19990129; JP 2000529402 A 19990129; KR 20007008403 A 20000802; PT 99901656 T 19990129