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Light-duty diesel oil/gasoline car engine lubricating oil composition

A lubricating oil composition and the technology of the composition, which are applied in the field of lubricating oil, can solve the problem that the base number does not meet the high base number performance requirements of light-load diesel passenger car engines, the performance effect on high temperature detergency is not outstanding, sludge dispersibility, anti-oxidation The performance effect of anti-wear performance is not outstanding, and the effect of excellent detergency and dispersion and excellent high-temperature detergency can be achieved.

Active Publication Date: 2014-09-17
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The lubricating oil composition involved in the present invention has the above performance requirements for lubricating oils for light-duty diesel / gasoline car engines, while ordinary commercially available gasoline car engine oils do not have outstanding performance in terms of high-temperature detergency, and the base number does not meet light-duty diesel oil. High Base Number Performance Requirements for Car Engines
Ordinary heavy-duty diesel engine oils are not outstanding in low-temperature sludge dispersibility, anti-oxidation and anti-wear properties.

Method used

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  • Light-duty diesel oil/gasoline car engine lubricating oil composition
  • Light-duty diesel oil/gasoline car engine lubricating oil composition
  • Light-duty diesel oil/gasoline car engine lubricating oil composition

Examples

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Embodiment 1

[0025] Taking the production of product 100Kg of the present invention as example used raw material and mass ratio thereof are:

[0026]

Embodiment 2

[0028] Taking the production of product 100Kg of the present invention as example used raw material and mass ratio thereof are:

[0029]

Embodiment 3

[0031] Taking the production of product 100Kg of the present invention as example used raw material and mass ratio thereof are:

[0032]The alkyl calcium salicylate with a base value of 160 to 175 in the above-mentioned embodiment 1 is replaced with the synthetic magnesium salicylate of the same quality with a base value of 160 to 175, and polyisobutylene monosuccinimide is replaced with the same quality bis Succinimide is replaced, other components are the same as the quality.

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Abstract

The invention discloses an engine lubricating oil composition. The engine lubricating oil composition has quality satisfying ACEA-2010A3 / B4 and SAEJ300 specification requirements, is suitable for lubricating a light-duty diesel oil / gasoline car engine under harsh conditions and is especially suitable for lubricating a direct injection light-duty diesel oil / gasoline engine having turbocharging. The engine lubricating oil composition has excellent oxidation and wear resistance, middle / low temperature dispersibility and high temperature detergency, a high base number and strong alkali maintenance capability, can effectively inhibit high-temperature piston deposit generation, can prevent piston adhesion to a ring, has a long oil change period and can provide full lubricating protection on the engine. The engine lubricating oil composition comprises at least two metal detergents, two ashless dispersants, three antioxidant, anticorrosive and antiwear agents, a viscosity index improver, a pour point depressant, an anti-foaming agent and two base oil.

Description

(1) Technical field [0001] The invention belongs to the technical field of lubricating oil, and in particular relates to a lubricating oil composition which can meet the requirements of lubricating light-load diesel / gasoline car engines under harsh working conditions, and is especially suitable for lubricating oil compositions with turbocharged direct-injection light-load diesel engines. It should have excellent anti-oxidation and anti-wear properties, medium and low temperature dispersibility and high temperature detergency, as well as high alkali number and good alkali retention capacity. The present invention belongs to the class of hydrogenated lubricating compositions. (2) Background technology [0002] With the depletion of limited oil resources, the seriousness of environmental pollution and the upgrading of emission regulations, light-duty diesel cars with good fuel economy, power, and low CO 2 Emissions and other advantages have been more and more valued and favore...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10N30/04C10N30/06C10N30/10C10N40/25
Inventor 金理力李桂云汪利平徐进宝
Owner PETROCHINA CO LTD
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