Lubricating oil for gaseous propellant engine

A gas fuel and engine technology, applied in the direction of lubricating composition, etc., can solve the problems of easy erosion of cylinders, corrosion and wear, penetration of emulsified engine oil, etc., and achieve low phosphorus content, excellent anti-oxidation and anti-corrosion properties, and suitable sulfate ash content Effect

Inactive Publication Date: 2005-03-16
HAILIAN INST OF LUBRICATING MATERIALS SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] (3) The acidic substances produced by combustion are easy to corrode the exposed cylinders and cause corrosion and wear
[0007] (4) After the gas is burned, more water is generated, which may penetrate into the emulsified engine oil in the crankcase

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Antioxidant additives:

[0039] 2,6-di-tert-butyl-p-cresol 2%

[0040] N-Phenyl-α-Naphthylamine 1.5%

[0041] Benzotriazole aldehyde-amine condensate 0.05%

[0042] Extreme pressure antiwear additives:

[0043] Di-n-butyl phosphite 1.9%

[0044] Tricresyl Phosphate 1.7%

[0045] Ammonium dithiophosphate 1.2%

[0046] Antifoam Additives:

[0047] Acrylate and ether copolymer 200ppm

[0048] Methyl silicone oil 13ppm

[0049] Pour point depressant:

[0050] Alkylated Naphthalene 0.6%

[0051] Anti-emulsifying Additives:

[0052] Amine and epoxy condensate 0.24%

[0053] Oil-soluble polyether polymer compound 0.1%

[0054] Low sulfur paraffinic base oil balance

[0055]

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PUM

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Abstract

The invention discloses a gaseous fuel engine lubricating oil characterized in that the oil comprises low sulfur paraffin wax base oil, anti-oxidizing additive, extreme pressure antiwearing agent, antifoaming additive, pourpoint depressant, and emulsion resisting additive. The lubricating oil is suitable for automobile engine powered by clean fuel (such as LPG, CNG, LNG, etc.).

Description

technical field [0001] The invention relates to a special oil for engines, in particular to a lubricating oil for gas fuel engines. Background technique [0002] With the continuous increase of the number of automobiles, automobile exhaust has become one of the main pollution sources of urban air, which not only affects people's health, but also affects the sustainable development of urban construction and social economy. [0003] Compared with traditional gasoline and diesel, clean gas fuels such as LPG, CNG and LNG have significant advantages: complete combustion, uniform combustion speed, higher octane number than gasoline, abundant resources, cheap price, and can greatly reduce exhaust pollution The emission of pollutants meets the requirements of environmental protection and sustainable development of modern cities. At present, the special lubricating oil used for gas fuel (including LPG, CNG, LNG, etc.) engines generally cannot solve technical problems such as poor lu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M157/10
Inventor 王鹏王东海孙利
Owner HAILIAN INST OF LUBRICATING MATERIALS SHANGHAI
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