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Ultralow-temperature heavy-load vehicle gear oil composition

A gear oil, heavy-duty technology, used in lubricating compositions, petroleum industry and other directions, can solve the problems of poor extreme pressure bearing capacity, low temperature Brookfield viscosity can not meet the requirements, high temperature foam and other problems, to achieve high bearing capacity, low Low temperature viscosity and low foam tendency

Active Publication Date: 2020-06-05
JIANGSU LOPALTECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this type of oil is still rare in the market, and there are no reports on related patents. Moreover, there are still some technical difficulties in the actual deployment of this type of oil, such as the low-temperature Brookfield viscosity not meeting the requirements, and the extreme pressure bearing capacity. Poor and high temperature bubbles and other problems

Method used

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  • Ultralow-temperature heavy-load vehicle gear oil composition
  • Ultralow-temperature heavy-load vehicle gear oil composition

Examples

Experimental program
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Effect test

Embodiment 1

[0021] The ultra-low temperature heavy-duty vehicle gear oil composition GL-5 70W-90 in this embodiment is blended by the components shown in the following table 1 in weight percentage:

[0022] Table 1

[0023] components weight percentage Naphthenic oil NS-3 39.46％ Synthetic ester KL19 32％ Viscoplex 7-310 20.5％ Gear oil compound HITEC 369 8％ Antifoaming agent V14-520 0.04％

Embodiment 2

[0025] The ultra-low temperature heavy-duty vehicle gear oil composition GL-5 70W-90 in this embodiment is blended from the components shown in the following table 2 in weight percentage:

[0026] Table 2

[0027] components weight percentage Synthetic oil PAO2 20.94％ Naphthenic oil NS-8 35％ Synthetic ester KL16 15％ Viscosity agent V7-305 22％ Gear oil compounding agent Anglamol 6043 7％ Antifoaming agent V14-520 0.06％

Embodiment 3

[0029] The ultra-low temperature heavy-duty vehicle gear oil composition GL-5 70W-90 in this embodiment is blended by the components shown in the following table 3 in percentage by weight:

[0030] table 3

[0031] components weight percentage Synthetic oil PAO2 11.95％ Naphthenic oil NS-3 20％ Synthetic ester KL16 40％ Viscosity Index Agent V7-310 20％ Gear oil compounding agent Anglamol 6043 8％ Antifoam agent FOAM BAN 130B 0.05％

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Abstract

The invention discloses an ultralow-temperature heavy-load vehicle gear oil composition. The composition comprises the following components in percentage by weight: 18-22% of a viscosity index improver, 7-10% of a gear oil complexing agent, and 0.03-0.06% of an anti-foaming agent, with the balance being base oil, wherein the base oil comprises naphthenic oil and diester. According to the invention, special ultralow-temperature naphthenic oil base oil and diester base oil are effectively compounded to ensure that the product has lower base oil viscosity and excellent anti-foaming property; thecomposition has excellent low-temperature fluidity, pumpability, thermal oxidation stability, excellent bearing capacity and scratch resistance, can meet the lubricating requirement of the rear axle gear of a vehicle, is particularly suitable for a system with an oil pump in a gear box for lubrication, ensures the transportability of oil products under the ultralow-temperature working condition, and provides reliable lubrication for a gear train.

Description

technical field [0001] The invention relates to a gear oil composition, in particular to a gear oil composition for ultra-low temperature heavy-duty vehicles. Background technique [0002] Energy saving, environmental protection and extended oil change intervals are the driving forces to promote the upgrading of lubricating oil. In recent decades, the automobile industry has developed rapidly, and the price of automobile fuel has also continued to rise. Fuel economy has become increasingly important to engine designers, lubricant manufacturers and vehicle users. The fuel consumption of a car mainly depends on the technical condition of the engine and transmission system. During the operation of the gear system, due to the different viscosity and temperature of the lubricating oil, the difference in oil additives and lubrication methods will produce different lubrication effects, which greatly affects the efficiency of the transmission system of the car. Relevant studies h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10N30/02C10N30/06C10N30/18C10N40/04
CPCC10M169/04C10M2203/045C10M2207/2825C10M2205/0285C10M2209/084
Inventor 杨操崔军
Owner JIANGSU LOPALTECH
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