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A vehicle gear lubricant with low sulfur and low shear viscosity loss

A technology of gear lubricating oil and low shear viscosity, which is applied in the chemical field and can solve problems affecting oil cleanliness and low temperature performance, high KRL shear loss, increased sludge and carbon deposits, etc., to achieve good sludge and carbon deposit control ability, solve the problem of unsmooth oil passage, and reduce the effect of sulfur addition

Active Publication Date: 2022-01-28
江西龙威环保科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its oil still has high KRL shear loss and short service life
Usually small molecules will increase the amount of viscosity index agent, affect the detergency and low temperature performance of the oil, and increase the generation of sludge and carbon deposits

Method used

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  • A vehicle gear lubricant with low sulfur and low shear viscosity loss

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049]A vehicle gear lubricating oil with low sulfur and low shear viscosity loss, comprising the following components by weight percentage:

[0050] Vehicle gear oil compound 6%

[0051] 1- Propylene and ethylene polymer 20%

[0052] High viscosity polyalphaolefin 30%

[0053] Synthetic ester 15%

[0054] Nano rare earth wear reducer 1%

[0055] Organic Friction Modifier 5%

[0056] Alkylated naphthalene (AN) 5%

[0057] Pour point depressant 0.3%

[0058] Demulsifier 0.01%

[0059] Defoamer 50ppm

[0060] Metal deactivator 0.05%

[0061] Rust inhibitor 0.05%

[0062] Antioxidant 0.1%

[0063] Base oil balance

[0064] The vehicle gear oil compound is a heavy-duty vehicle gear oil compound meeting the GL-5 level.

[0065] The 1-propylene and ethylene polymer is LUCANT HC-100 from Mitsui Chemicals.

[0066] The high-viscosity polyalphaolefin is metallocene polyalphaolefin (mPAO), and its kinematic viscosity at 100°C is 40cSt.

[0067] The kinematic viscosity of t...

Embodiment 2

[0084] A vehicle gear lubricating oil with low sulfur and low shear viscosity loss, comprising the following components by weight percentage:

[0085] Vehicle gear oil compound 4%

[0086] 1- Propylene and ethylene polymer 30%

[0087] High viscosity polyalphaolefin 20%

[0088] Synthetic ester 10%

[0089] Nano rare earth wear reducer 3%

[0090] Organic Friction Modifier 3%

[0091] Alkylated naphthalene (AN) 10%

[0092] Pour-point depressant 0.5%

[0093] Demulsifier 0.03%

[0094] Defoamer 100ppm

[0095] Metal deactivator 0.08%

[0096] Rust inhibitor 0.3%

[0097] Antioxidant 0.5%

[0098] Base oil balance

[0099] The vehicle gear oil compound is a heavy-duty vehicle gear oil compound meeting the GL-5 level.

[0100] The 1-propylene and ethylene polymer is LUCANT HC-600 from Mitsui Chemicals.

[0101] The high-viscosity polyalphaolefin is metallocene polyalphaolefin (mPAO), and the kinematic viscosity at 100°C is 500cSt.

[0102] The kinematic viscosity o...

Embodiment 3

[0119] A vehicle gear lubricating oil with low sulfur and low shear viscosity loss, comprising the following components by weight percentage:

[0120] Vehicle gear oil compound 2%

[0121] 1- Propylene and ethylene polymer 40%

[0122] High viscosity polyalphaolefin 15%

[0123] Synthetic ester 5%

[0124] Nano rare earth wear reducer 5%

[0125] Organic friction modifier 1%

[0126] Alkylated naphthalene (AN) 15%

[0127] Pour point depressant 1%

[0128] Demulsifier 0.05%

[0129] Defoamer 200ppm

[0130] Metal deactivator 0.1%

[0131] Rust inhibitor 0.5%

[0132] Antioxidant 1.0%

[0133] Base oil balance

[0134] The vehicle gear oil compound is a heavy-duty vehicle gear oil compound meeting the GL-5 level.

[0135] The 1-propylene and ethylene polymer is LUCANT HC-2000 from Mitsui Chemicals.

[0136] The high-viscosity polyalphaolefin is metallocene polyalphaolefin (mPAO), and the kinematic viscosity at 100°C is 1000cSt.

[0137] The kinematic viscosity of ...

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Abstract

The invention relates to vehicle gear lubricating oil with low sulfur and low shear viscosity loss, belonging to the field of chemical technology. The composition comprises the following components by mass percentage: vehicle gear oil compounding agent: 2-6%, 1-propylene and ethylene polymer: 20%-40%, high-viscosity polyalphaolefin: 15%-30%, Synthetic ester: 5%‑15%, nano-rare earth friction reducer: 1%‑5%, organic friction modifier: 1%‑5%, alkylnaphthalene (AN): 5%‑15%, pour point depressant: 0.3 ‑1%, demulsifier: 0.01‑0.05%, defoamer: 50‑200PPM, metal deactivator: 0.05‑0.1%, rust inhibitor: 0.05‑0.5%, antioxidant: 0.1‑1.0%, base oil :margin. The lubricating oil KRL of the invention has high shear stability, low shear viscosity loss and low sulfur content in the product.

Description

technical field [0001] The invention relates to a lubricating oil composition, in particular to a vehicle gear lubricating oil with low sulfur and low shear viscosity loss, belonging to the technical field of chemistry. Background technique [0002] With the rapid development of automobile technology, the engine has stronger power than before, more severe operating temperature, lower fuel consumption and emission requirements, the new national standard GB / T13895-2018 heavy-duty vehicle gear oil (GL-5) Implementation and people's requirements for vehicle lubricating oil are getting higher and higher: lower sulfur content, oil products are subjected to more severe shearing action under high load, and oil products are required to have extremely low KRL shear viscosity loss and higher energy efficiency , longer drain intervals, better performance over a wider temperature range, and better durability under extreme conditions. To help meet these requirements, meeting all these ch...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/04C10N30/06C10N30/10C10N30/12C10N30/04C10N30/02
CPCC10M169/048C10M2209/084C10M2205/022C10M2229/041C10M2209/103C10M2219/044C10M2219/06
Inventor 彭洪斌向华
Owner 江西龙威环保科技发展有限公司
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