Engine lubricating oil additive composition

A technology for lubricating oil additives and compositions, which is applied in the fields of lubricating oil additive compositions and lubricating oil additive compositions for passenger cars, can solve the problems of high-temperature detergency, low-temperature sludge dispersibility and other problems, and achieve excellent high-temperature detergency, The effect of excellent sludge dispersibility

Inactive Publication Date: 2019-08-06
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the high-temperature detergency and low-temperature sludge dispersibility of commercially available gasoline engine oil and heavy-duty diesel engine oil are not obvious

Method used

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  • Engine lubricating oil additive composition
  • Engine lubricating oil additive composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Taking the production of product 100Kg of the present invention as example used raw material and mass ratio thereof are:

[0040] Calcium alkyl salicylate with a base value of 160-175 27Kg

[0041] Calcium alkylbenzenesulfonate with a base value of 20-35 6Kg

[0042] The base value is 245-265 sulfurized alkylphenate calcium 12Kg

[0043] Monosuccinimide 15Kg

[0044] Polymer succinimide 40Kg

Embodiment 2

[0046] Taking the production of product 100Kg of the present invention as example used raw material and mass ratio thereof are:

[0047] The base number is 245-265 sulfurized alkylphenate calcium 10Kg

[0048] Calcium alkylbenzene sulfonate with a base value of 20-35 5Kg

[0049] Calcium alkylbenzene sulfonate with a base value of 300-325 20Kg

[0050] Monosuccinimide 19Kg

[0051] Polymer succinimide 46Kg

Embodiment 3

[0053] Taking the production of product 100Kg of the present invention as example used raw material and mass ratio thereof are:

[0054] Calcium alkyl salicylate with a base value of 160-175 20Kg

[0055] Alkaline value 245-265 sulfurized calcium phenate 11Kg

[0056] Calcium alkylbenzenesulfonate with a base value of 20-35 6Kg

[0057] Calcium alkylbenzene sulfonate with a base value of 265-295 18Kg

[0058] Monosuccinimide 10Kg

[0059] Polymer succinimide 30Kg

[0060] Dispersed ethylene propylene copolymer 5Kg

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Abstract

The invention relates to an engine lubricating oil additive composition, which comprises the following components: (A) at least three metal detergents, and (B) at least two ash-free dispersants, wherein the component (A) accounts for 35.0-55.0% of the total weight of the composition, and the component (B) accounts for 45.0-65.0% of the total weight of the composition. According to the present invention, the performances of the engine oil blended from 10.0-12.0% of the prepared cleaning dispersing additive composition and other functional additives meet the VWTDI bench test limitation requirements in ACEA-2012A1 / B1, A3 / B4 and A5 / B5; the composition is suitable for the production of lubricating oil with severe high-temperature cleaning performance requirements, and is especially suitable forthe blending of turbocharged direct-injection light-duty diesel engine lubricating oils; and the oil blended by the additive composition has excellent high-temperature detergency and excellent medium-low temperature dispersibility, and can effectively suppress the generation of high-temperature deposits on the engine piston, particularly the top portion of the piston, and soot wear.

Description

technical field [0001] The invention belongs to the technical field of lubricating oil additives, and in particular relates to a car engine lubricating oil additive composition with excellent high-temperature detergency. The oil blended by the composition is especially suitable for lubricating diesel engines with turbocharged direct injection and light load. . The blended oil has excellent high-temperature detergency, medium-low temperature dispersibility, and good soot wear resistance. The present invention belongs to the class of lubricating oil additive compositions. Background technique [0002] With the depletion of limited oil resources, the seriousness of environmental pollution and the upgrading of emission regulations, gasoline / light-load diesel cars with good fuel economy, power, and low CO 2 Emissions and other advantages have been more and more valued and favored by the world. Due to the special technical parameters and working conditions of diesel passenger c...

Claims

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Application Information

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IPC IPC(8): C10M141/08C10M161/00C10N30/04C10N30/08C10N30/06C10N40/25
CPCC10M161/00C10M141/08C10M2207/144C10M2215/086C10M2215/28C10M2217/06C10M2219/044C10M2219/087C10M2205/022C10M2205/024C10M2219/046C10M2219/089C10N2030/041C10N2030/04C10N2030/08C10N2030/06C10N2040/252C10N2040/255
Inventor 金理力李静徐小红徐进宝
Owner PETROCHINA CO LTD
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