Gear oil for hybrid vehicle and preparation method of gear oil

A technology for gear oil and vehicles, applied in the field of lubricating oil, can solve the problems of unable to keep the tooth surface clean, gear oil dispersion and poor anti-wear performance, etc., achieve the effect of safe use, reasonable composition, and guaranteed anti-wear performance

Active Publication Date: 2014-04-09
TEXAS PETROCHEM YANTAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In most cases, the gears operate under mixed lubrication. Under the conditions of starting, stopping, low speed, heavy load and impact load, it is mainly boundary lubrication; while at high speed and low load, it is mainly elastic hydrodynamic lubrication, but the existing High-quality automotive gear oils cannot withstand the high-temperature thermal oxidation strength when the gears are in contact with each other instantaneously, and cannot keep the tooth surface clean, and the dispersibility and anti-wear performance of the gear oil are poor

Method used

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  • Gear oil for hybrid vehicle and preparation method of gear oil
  • Gear oil for hybrid vehicle and preparation method of gear oil
  • Gear oil for hybrid vehicle and preparation method of gear oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: (in terms of 100 kilograms, the same below)

[0025]

[0026] The composite additive package contains 27.5% sulfur, 1.54% phosphorus and 0.9% nitrogen.

[0027] The preparation method of this synthetic vehicle gear oil adopts the following steps:

[0028] (1) Pump the oil-soluble polyalkylene glycol and synthetic ester base oil of the above weight into the blender with a gear pump, heat and stir, and mix evenly at a constant temperature of 60°C to obtain a mixed oil A;

[0029] (2) Add the compound additive package of the above weight to the mixed oil A prepared in step (1), and continue to mechanically stir for 2 hours at a constant temperature of 60°C to prepare mixed oil B;

[0030] (3) Filter the mixed oil B prepared in step (2), and filter it through a filter with a filter bag device under a pressure of 0.2 MPa to obtain a clear and transparent synthetic vehicle gear oil.

Embodiment 2

[0032]

[0033] The composite additive package contains 36.1% sulfur, 1.22% phosphorus and 2.5% nitrogen.

[0034] The preparation method of this synthetic vehicle gear oil adopts the following steps:

[0035] (1) Pump the oil-soluble polyalkylene glycol and synthetic ester base oil of the above weight into the blender with a gear pump, heat and stir, and mix evenly at a constant temperature of 55°C to obtain a mixed oil A;

[0036] (2) Add the compound additive package of the above weight to the mixed oil A prepared in step (1), and continue to mechanically stir for 1.5 hours at a constant temperature of 55°C to prepare mixed oil B;

[0037] (3) Filter the mixed oil B prepared in step (2), and filter it through a filter with a filter bag device under a pressure of 0.15 MPa to obtain a clear and transparent synthetic vehicle gear oil.

Embodiment 3

[0039]

[0040]

[0041] The composite additive package contains 36.5% sulfur, 1.21% phosphorus and 0.9% nitrogen.

[0042] The preparation method of this synthetic vehicle gear oil adopts the following steps:

[0043] (1) Pump the oil-soluble polyalkylene glycol and synthetic hydrocarbon base oil of the above weight into the blender with a gear pump, heat and stir, and mix evenly at a constant temperature of 50°C to obtain a mixed oil A;

[0044] (2) Add the compound additive package of the above weight to the mixed oil A prepared in step (1), and continue mechanical stirring for 1 hour at a constant temperature of 50°C to prepare mixed oil B;

[0045] (3) Filter the mixed oil B prepared in step (2), and filter it through a filter with a filter bag device under a pressure of 0.1 MPa to obtain a clear and transparent synthetic vehicle gear oil.

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Abstract

The invention relates to the field of lubricating oil and in particular discloses gear oil for a hybrid vehicle and a preparation method of the gear oil. The gear oil for the hybrid vehicle comprises the following components in percentage by weight: 4.0-13.0 percent of composite additive bag, 70-90 percent of oil-soluble polyalkylene glycol and the balance of base oil. The gear oil has the beneficial effects that the gear oil is reasonable in component and safe to use, the high-temperature thermal oxidation strength of the gear during momentary contact can be borne, the heat can be timely taken away, the gear oil has high cleanliness and dispersity, various precipitates which are subjected to thermal oxidation or are generated through chemical decomposition or polymerization reaction of the oil can be taken away, the tooth surface is kept clean, the wear resistance of the gear oil is guaranteed, and the gear oil can be used for lubricating various gears operating at high-speed impact loads, high-speed low torque and low-speed high torque, various automobile gears, particularly heavy-duty hyperbolic and spiral bevel gears, oil lubrication universal joints and manual steering gears.

Description

(1) Technical field [0001] The invention relates to the field of lubricating oil, in particular to a synthetic vehicle gear oil and a preparation method thereof. (2) Background technology [0002] The working performance of the gear transmission will be limited by the torque and speed, beyond a certain torque and speed, the gears will be damaged in various forms: wear, abrasion, pitting or fracture, etc. In most cases, the gears operate under mixed lubrication. Under the conditions of starting, stopping, low speed, heavy load and impact load, it is mainly boundary lubrication; while at high speed and low load, it is mainly elastic hydrodynamic lubrication, but the existing High-quality automotive gear oils cannot withstand the high-temperature thermal oxidation strength when the gears are in contact with each other instantaneously, and cannot keep the tooth surface clean, and the dispersibility and anti-wear performance of the gear oil are poor. (3) Contents of the inventi...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10M177/00C10N30/06C10N30/10C10N30/12C10N30/04C10N40/04
Inventor 王述申李晓丽
Owner TEXAS PETROCHEM YANTAI
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