Lubricant oil composition for internal combustion engines

Details Lubricant oil composition for internal combustion engines Lubricant oil composition for internal combustion engines

C - Chemistry, Metallurgy

10

M

C10M 137/10 (2006.01) C10M 133/44 (2006.01) C10M 169/02 (2006.01) C10M 169/04 (2006.01) C10M 173/02 (2006.01)

Patent

CA 2314196

The present invention provides for a lubricant oil composition for internal combustion engines, that resists oxidation in the presence of NOx and evaporation characteristics, and controls poisoning of a three-way catalyst system for occluding/reducing NOx and formation of deposit in an air intake system. The lubricant oil composition for internal combustion engines, comprises a base oil, which contains aromatic compounds at 1 wt.% or less, sulfur at 10 ppm or less, and paraffin and monocyclic naphthene compounds at 50 wt.% or more as total content, and has a kinematic viscosity of 2 to 50 mm2/s at 100°C and evaporated quantity of 16 wt.% or less determined by the NOACK evaporation test, wherein the base oil is incorporated with a zinc dithiophosphate at 0.04 to 0.10 wt.% as phosphorus, a calcium phenate and/or calcium sulfonate having a total basic number of 100 to 400 mg KOH/g at 1 to 10 wt.%, and a polyalkenyl succinimide having a boron/nitrogen wt. ratio of 0 to 1.2 and alkenyl group of 1,000 to 3,500 in molecular weight at 0.01 to 0.20 wt.% as nitrogen.

Affiliated with

Also associated with

Rating

Lubricant oil composition for internal combustion engines does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Lubricant oil composition for internal combustion engines, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lubricant oil composition for internal combustion engines will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1907719