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Lubricating composition for a marine engine

A lubricant composition, technology for marine engines, applied in fuel consumption of ships, additive concentrate type composition, lubricant for four-stroke marine engines, lubricant composition field, capable of solving weakened heat resistance and cleanability, Contamination of lubricants and other issues to achieve the effect of improving storage stability and heat resistance

Inactive Publication Date: 2016-02-17
TOTAL MARKETING SERVICES SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In fact, during the combustion of fuel in the engine, combustion residues and unburned substances can contaminate the lubricant and impair its heat resistance and cleaning properties

Method used

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  • Lubricating composition for a marine engine
  • Lubricating composition for a marine engine
  • Lubricating composition for a marine engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0285] Example 1: Evaluation of the heat resistance of the lubricant composition of the present invention

[0286] The heat resistance of the lubricant composition of the present invention is evaluated by carrying out the continuous ECBT method evaluation, thereby simulating the cleanliness of the engine in the presence of the lubricant composition.

[0287] For this purpose, different lubricant compositions were prepared from the following compounds:

[0288] - Group I base oils, in particular Neutral Solvent 150NS, 330NS or 600NS, respectively having kinematic viscosities of 30 cSt, 66 cSt, 120 cSt at 40°C measured according to ASTM D7279 standard.

[0289] - a hydrogenated styrene-isoprene copolymer (HSI) with a star configuration, diluted to 9% active material in a Group I base oil (Shellvis 301 sold by the company Infineum),

[0290] - ethoxylated monoamine oleate (Ethomeen O / 12 sold by the company AKZONOBEL),

[0291] - an overbased cleaner based on calcium phenate a...

Embodiment 2

[0319] Example 2: Evaluation of the heat resistance of the lubricant composition of the invention in extreme cases

[0320] The thermal resistance of the lubricant compositions of the present invention in the presence of fuel under extreme conditions was evaluated by conducting a continuous ECBT fuel test, thereby simulating the engine cleanliness of such compositions under extreme conditions.

[0321] For the continuous ECBT test, the continuous ECBT fuel test simulates an engine piston heated to a high temperature and sprayed with lubricant from the crankcase.

[0322] The lubricant has been contaminated with heavy fuel (2.5% m / m relative to the amount of lubricant) to simulate contamination of an engine lubricant with residues and unburned material from fuel combustion.

[0323] The equipment is the same as that of the continuous ECBT test of Example 1.

[0324] The lubricant mixed with heavy fuel was placed in a glass container maintained at a temperature of about 60°C....

Embodiment 3

[0331] Example 3: Evaluation of the fuel consumption economy of the lubricant composition of the present invention

[0332] The fuel consumption economy achieved by using the lubricant composition of the present invention was evaluated by simulation, by evaluating the traction coefficient on a mini traction machine (MTM) according to the method described below.

[0333] The tests were carried out on a PCSMTM machine in contact with super polished 100C6 balls (AISI 52100 standard steel) with a diameter equal to 19.05 mm, opposite a flat disc with the same material and surface state properties as the balls.

[0334] The following conditions were evaluated based on the operation they represent in the PRL region (piston ring liner), which is the region where most of the friction occurs, and thus the region where fuel economy gains can be maximized:

[0335] -25N load on the ball

[0336] -2m / s driving speed

[0337] -100% SRR (swipe to scroll ratio), which is equal to the rati...

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Abstract

The invention relates to a lubricating composition for a marine engine, especially a four-stroke or a two-stroke marine engine, comprising at least one base oil, at least one alkoxylated fatty amine, at least one hydrogenated styrene / isoprene copolymer and at least one detergent.

Description

technical field [0001] The present invention relates to the field of lubricants, more particularly lubricants for marine engines, especially four-stroke or two-stroke marine engines, preferably four-stroke marine engines. More particularly, the present invention relates to a lubricant composition comprising at least one base oil, at least one alkoxylated fatty amine, at least one hydrogenated styrene-isoprene copolymer and at least one detergent. The lubricant compositions of the present invention have both good fuel economy and engine cleanliness, especially crankcase cleanliness. [0002] The invention also relates to a method of reducing the fuel consumption of a vessel using the lubricant composition. [0003] The present invention also relates to an additive concentrate type composition comprising at least one alkoxylated fatty amine, at least one hydrogenated styrene-isoprene copolymer and at least one cleaning agent. Background technique [0004] In the automotive ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M167/00C10N30/06C10N40/25
CPCC10M167/00C10M2203/1006C10M2203/1025C10M2205/04C10M2205/06C10M2207/028C10M2207/262C10M2215/042C10M2215/28C10M2223/045C10M2227/062C10M2229/02C10N2010/02C10N2010/04C10N2030/06C10N2030/04C10N2030/54C10N2040/252C10N2060/02C10N2060/14C10M129/14C10M129/54C10M133/06
Inventor C.安布拉德C.冈诺
Owner TOTAL MARKETING SERVICES SA