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Break-in oil for internal-combustion engine of vehicle

Inactive Publication Date: 2011-07-27
张家玺
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a vehicle internal combustion engine running-in oil, which solves the problems of long running-in time and poor running-in effect of the traditional internal combustion engine running-in oil

Method used

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  • Break-in oil for internal-combustion engine of vehicle
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  • Break-in oil for internal-combustion engine of vehicle

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] 1. Selection of base oil and additives

[0014] 1. Selection of base oil

[0015] According to the working characteristics of the internal combustion engine, when preparing the internal combustion engine running-in oil, the running-in characteristics of the internal combustion engine for vehicles should be combined, and different models such as gasoline engines and diesel engines should be considered. Select 46 produced by Lanzhou Refinery # Machine oil is used as the base oil for blending, which is made from the second-line distillate oil after a series of refining. The results are shown in Table 1 through laboratory physical and chemical index determination.

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Abstract

The invention discloses break-in oil for an internal-combustion engine of a vehicle, which is formed by adding additives to base oil in percentage by weight. The break-in oil is prepared from the following raw materials in percentage by weight: 0.3-0.6 percent of hyperfine diamond powder, 4-8 percent of metallic detergent, 2-4 percent of ashless dispersant, 0.3-0.5 percent of oxidation and corrosion inhibitor, 0.0005-0.001 percent of antifoaming agents and the balance of base oil. The break-in oil has better total base number (TNB) and PB value of oil film carrying capacity, and the kinematic viscosity is 6.98 square millimeters per second at 100 DEG C and is the suitable viscosity of the break-in oil for the internal-combustion engine, thereby contributing to the acceleration of the break-in process of the internal-combustion engine and improving the break-in quality.

Description

technical field [0001] The invention relates to a running-in oil, in particular to a running-in oil for a vehicle internal combustion engine. Background technique [0002] The running-in test is required for new internal combustion engines leaving the factory and after overhaul. The purpose of running-in is to prepare the friction surface of the parts to bear the load, and improve the quality of the friction surface and tribological properties of the parts through running-in, such as fatigue strength, anti-friction and anti-wear and corrosion resistance. performance etc. To achieve this goal, it is difficult to rely on base oil alone, and necessary additives must be assisted to achieve the desired effect. Common internal-combustion engine running-in oil is only mixed with ordinary engine oil by adding 20% ​​diesel oil, or each manufacturer specifies a lubricating oil, which results in a long running-in time and unsatisfactory running-in quality. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M161/00C10N40/25
Inventor 张家玺杜愎刚张志刚蒋耘农曹永晟张杰
Owner 张家玺
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