US20140213491A1

US20140213491A1 - Anti-Burn Engine Oil and Preparation Method Thereof

Info

Publication number: US20140213491A1
Application number: US14/350,336
Authority: US
Inventors: An Zhang; Jianliang Zhang
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-10-08
Filing date: 2012-01-20
Publication date: 2014-07-31
Also published as: WO2013049976A1; CN103031185A; CN103031185B

Abstract

Provide is an anti-burn engine oil, which comprises a base oil, and copper powder or ceramic powder having the particle diameter of 110 nm-300 nm and the aspect ratio of no greater than 3:1, wherein the amount of copper powder or ceramic powder is 25 g-100 g in per liter the base oil. The copper powder or ceramic powder contained in the engine oil can increase the potential energy of the towed particles in the cylinder and form a variety of complex movements under the relative movement of friction pair so as to not only greatly reduce the dry friction, but also have a good lubricating property and avoid the engine oil burning. At the same time, particles in motion possess the specialty of decreasing the temperature of the oil film, increasing the anti-oxidation ability of the engine oil, prolong the service life of the engine oil, and enhance the maintenance of the engine.

Description

The present application claims priority to Application No. 201110301788.6 filed in SIPO on Oct. 8, 2011 and entitled “Anti-burn engine oil and preparation method thereof”, the disclosures of which are incorporated herein by reference.

FIELD OF THE INVENTION

The present invention relates to a field of engine lubricant, specifically to an anti-burn engine oil and a preparation method thereof.

BACKGROUND OF THE INVENTION

An engine lubricant, called engine oil for short, is a lubricating medium for each moving parts in the engine system, which has the effects of lubricating, cooling, cleaning and sealing and the like, in order to ensure effective and long-term working of the engine. Performances of the engine lubricant directly affect the efficiency, fuel consumption, power output, service life and emissions and the like of the engine.
With the increase in mileage, fit clearances between the engine friction pairs in the engine increase gradually due to wear, causing the car oil burning phenomenon, “oil burning” means oil enter into the engine's combustion chamber, and participates combustion along with the gas mixture, which has become a common malfunction of the car. When a “oil burning” phenomenon occurs in vehicles, the ternary catalytic converters of vehicle damage too rapid, resulting in negative consequences of increasing carbon deposits in the combustion chamber, unstable idle speed, puny acceleration, increased fuel consumption, excessive exhaust emissions and the like, in severe cases, insufficient engine lubrication making it difficult to repair the damage of the engine or even scrapped, resulting in a substantial increase in maintenance costs and even accidents.
The main reason for car oil burning is due to dry friction, so that wear of the piston ring and cylinder wall increases, the clearance between the cylinder walls becomes large, scraper effect of piston ring decreases, the sealing performance reduces, so that part of the oil enters into the combustion chamber. For the friction between each friction parts, many brands of anti-wear, repair lubrication oil appears on the market, however, through practice it has proved that the current trend or phenomenon of car oil burning remains the same, the current motor oil does not solve the problem of dry friction and wear.

DESCRIPTION OF THE INVENTION

The issue which the invention solves is to provide an anti-burn engine oil and a preparation method thereof, the engine oil has good lubricating properties and greatly reduced dry friction to avoid burning oil phenomenon.
To solve the above problems, the technical solutions of the invention are:
An anti-burn engine oil, comprising: a base oil, and copper powders or ceramic powders having the particle size of 110 nm-300 nm and the aspect ratio of no greater than 3:1, wherein the content of copper powders or ceramic powders is 25 g-100 g/liter of the base oil.
As preferred, the anti-burn engine oil also comprises a liquid additive, wherein the liquid additives comprises, in percentage by total weight of the base oil and the liquid additives:


	dispersant	3.0%-5.0%
	detergent	1.0%-3.0%
	anti-corrosion agent	0.2%-0.6%
	antioxidant	0.1%-0.3%
	viscosity index improver	2.0%-5.0%,

balanced with the base oil.
As preferred, the base oil is API group III base oil or synthetic base oil. As preferred, the dispersant is one or more of polyisobutylene-bis-succinimide, polyisobutylene-multi-succinimide and single linked succinimide dispersant.
As preferred, the detergent is one or more of synthetic sulfonate, thioalkyl phenate and salicylate.
As preferred, the anti-corrosion agent is one or more of zinc dialkyl dithiophosphate, zinc dialkyl dithiocarbamate and parathion alkyl zinc salt.
As preferred, the antioxidant is 2,6-di-tert-butyl-p-cresol, 4,4-methylene bisphenol, α-naphthylamine, N,N-di-sec-butyl-p-phenylenediamine.
As preferred, the viscosity index improver is one or two of ethylene-propylene copolymer, and hydrogenated styrene-diene copolymer.
A method for preparing an anti-burn engine oil, comprising:
adding copper powders or ceramic powders having the particle size of 110 nm-300 nm and the aspect ratio of no greater than 3:1 into base oil for mixing and stirring, wherein 25 g-100 g of the copper powders or ceramic powders is added per liter of the base oil.
As preferred, the preparation method of the anti-burn engine oil comprises:
firstly mixing the base oil and the liquid additive, then adding the copper powders or ceramic powders into the thus-obtained mixture;
wherein the liquid additive comprises, in percentage by total weight of the base oil and the liquid additives: dispersant 3.0%-5.0%, detergent 1.0%-3.0%, anti-corrosion agent 0.2%-0.6%, antioxidant 0.1%-0.3%, viscosity index improver 2.0%-5.0%, balanced with the base oil.
The present invention provide an anti-burn engine oil, the nanometer copper powders or ceramic powders contained therein can increase the potential energy of the towed particles in the cylinder and form a variety of complex movements under the relative movement of friction pair so as to not only greatly reduce the dry friction, but also have a good lubricating property and avoid the engine oil burning. At the same time, particles in motion also possess the specialty of decreasing the temperature of the oil film, increasing the anti-oxidation ability of the engine oil, prolong the service life of the engine oil, and enhance the maintenance of the engine.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

To further understand the present invention, the following preferred embodiments with reference to examples of the present invention will be described, it should be understood that these descriptions merely to further illustrate features and advantages of the present invention but not limit the claims of the invention.
There are particles of various material, size, shape present in cylinders of the engine, and when the engine is running, the friction pair parts are not in direct contact with each oter, but the particles in the cylinder being towed by the piston rings and intake and exhaust valve lifter which are in reciprocating linear movement, the towed particles are particularly hard at instantaneous high temperatures over 2000 degrees, resulting in various parts of friction is scratched, cycle of scratches and overlapping cause the weakness part of the friction pair parts or parts suffered the most stress occur steel on steel diy friction and wear.
The invention provides an anti-burn engine oil which can eliminate particle dry friction for dry friction caused by such particles, the oil containing a base oil and copper powders or ceramic powders having the particle size of 110 nm-300 nm and the aspect ratio of no greater than 3:1, wherein the content of copper powders or ceramic powders is 25 g-100 g/liter of the base oil.
The copper powder and ceramic powder having the above size and shape is a core of the anti-burn engine oil provided in the present invention, adding the copper powders or ceramic powders into the oil can increase the potential energy of the towed particles in the cylinder and form a variety of complex movements under the relative movement of friction pair so as to not only greatly reduce the dry friction, but also have a good lubricating property and avoid the engine oil burning, at the same time, particles in motion also possess the specialty of decreasing the temperature of the oil film, increasing the anti-oxidation ability of the engine oil.
To improve the performance of the engine oil, preferably the anti-burn engine oil further comprises a liquid additive, the liquid additive comprising, in percentage by total weight of the base oil and the liquid additive: dispersant 3.0%-6.0%, detergent 2.0%-3.5%, anti-corrosion agent 0.3%-0.8%, antioxidant 0.1%-0.3%, viscosity index improver 4.0%-8.0%, balanced with the base oil.
Base oil is an essential component of the engine oil, the object of the invention can be achieved, as long as the oil of the present invention contains the above-described copper powders or ceramic powders, the base oil commonly used on the market may be used for preparing the anti-burn engine oil provided by the invention, for example API group III base oil or synthetic base oil can be used. API group III base oil is obtained by full hydrogenation process, which exceeds Group I base oil and Group II base oil far in the performance, especially with high viscosity index and low volatility. Common synthetic base oil is commonly synthetic hydrocarbon, synthetic esters, polyethers, silicone oil, fluorine oil, phosphate esters, the thermal oxidation stability of the synthetic base oil is good, the thermal decomposition temperature is high, and low temperature resistance is good.
Dispersing agent can make an insoluble material as a colloidal suspension; preferably, one or more of polyisobutylene-dis-succinimide, polyisobutylene-multi-succinimide, single linked succinimide dispersant can be used in the present invention. Polyisobutylene-dis-succinimide and polyisobutylene-multi-succinimide have good thermal stability and good ability to high temperature dispersing deposits like engine sludge and carbon deposits, etc.; single linked succinimide dispersant has good low temperature dispersion capacity, which can effectively resist the formation of low-temperature sludge.
Detergents can remove carbon deposits and film which was formed in the engine oil at high temperatures, and make them dispersing in oil in a state of colloidal solution, reducing the formation and aggregation of harmful deposits on engine parts, and keeping surfaces of the engine and metal clean. The detergent of the invention is preferably the one or more of synthetic sulfonate, thioalkyl phenate, salicylate, and can effectively remove carbon deposits and film, while have excellent ability of neutralizing acidic substance generated by oxidation, good rust resistance, and a certain dispersion, better anti-oxidation, anti-wear and corrosion resistance, good synergistic effect when compounded with other additives.
Anti-corrosion agent can prevent oxidation of metal and delay the corrosion of engine parts from engine oil. The anti-corrosion agent of the invention is preferably one or more of zinc dialkyl dithiophosphate, zinc dialkyl dithiocarbamate, parathion alkyl zinc salt. Zinc dialkyl dithiophosphate (ZDDP) has good ability of inhibiting oil oxidation, preventing corrosion, while has good anti-wear effect; dialkyl dithiocarbamate (ZDTC) has good ability of inhibiting oil oxidation, preventing corrosion, while has good resistance to extreme pressure, and excellent high temperature performance, and will not cause the engine catalytic converter poisoning due to free of phosphorus; parathion alkyl zinc salt has good oxidation resistance, wear and corrosion resistance, and good heat stability.
Antioxidant can inhibit the oxidation of oil, reduce metal catalysis of oxidation and prolong the service life of the oil, protect the engine. Antioxidants of the invention are preferably 2,6-di-tert-butyl-p-cresol, 4,4-methylene bisphenol, a-naphthylamine, N,N-di-sec-butyl-p-phenylenediamine.
Viscosity index improver can increase viscosity index of oil and improve its viscosity-temperature properties, so that the oil can be used in the occasion of a large magnitude of the engine temperature change and at different temperatures throughout the year. Viscosity index improver of the invention is preferably one or two of ethylene-propylene copolymer, hydrogenated styrene-diene copolymer. Ethylene-propylene copolymer has excellent shear stability, thermal stability and better thickening ability; hydrogenated styrene-diene copolymer (HSD) has strong thickening ability of base oil, good resistance to mechanical shearing effect, excellent high and low temperature performance, to reduce the deposits such as carbon deposits generated in the engine.
The method of preparing anti-burn engine oil of the invention is: adding copper powders or ceramic powders having the particle size of 110 nm-300 nm and the aspect ratio of no greater than 3:1 into base oil for mixing and stirring, wherein 25 g-100 g of the copper powders or ceramic powders is added per liter of the base oil.
Preferably, a liquid additive is also added, the base oil and the liquid additive are mixed followed by adding the copper powders or ceramic powders into the thus-obtained mixture.

EXAMPLE 1

91.5% of API group III base oil, 3% of polyisobutylene-bis-succinimide, 2% of calcium thioalkyl phenate, 0.3% of zinc dialkyl dithiocarbamate, 0.2% of 2,6-di-tert-butyl-p-cresol, 3% of ethylene-propylene copolymer viscosity index improver by weight were mixed uniformly under stirring.
Then, 40 g/L of copper powder based on base oil, having the particle size of about 200 nm, was added into the above mixture, stirred uniformly to give the anti-burn engine oil.

EXAMPLE 2

89.75% of API group III base oil, 2% of polyisobutylene-multi-succinimide, 2% of mono-succinimide, 1.5% of synthetic calcium sulfonate, 0.5% of parathion Ding Xinbo alkyl zinc salts, 0.25% of 4,4-methylene bisphenol, 4% of hydrogenated styrene-diene copolymer by weight were mixed uniformly under stirring.
Then, 30 g/L of ceramic powder based on base oil, having the particle size of 150 nm, was added into the above mixture, stirred uniformly to give the anti-burn engine oil.

EXAMPLE 3

90.95% of API group III base oil, 4% of mono-succinimide, 1% of calcium alkyl salicylate, 0.4% of zinc dialkyl dithiophosphate, 0.15% of a-naphthylamine, 3.5% of ethylene-propylene copolymer by weight were mixed uniformly under stirring.
Then, 60 g/L of copper powder based on base oil, having the particle size of about 250 nm, was added into the above mixture, stirred uniformly to give the anti-burn engine oil.

EXAMPLE 4

The base oil composition is consist of API group III base oil and poly-a-olefin synthetic oil in ratio of 3:2 by weight, 90% of the synthetic base oil, 4.5% of polyisobutylene-multi-succinimide, 2.5% of synthetic magnesium sulfonate, 0.2% of alkyl parathion BROTHERS zinc, 0.3% of N,N-di-sec-butyl-p-phenylenediamine, 2.5% of hydrogenated styrene-diene copolymer by weight were mixed uniformly under stirring;
Then, 80 g/L of copper powder based on base oil, having the particle size of about 150 nm, was added into the above mixture, stirred uniformly to give the anti-burn engine oil.
Anti-burn engine oil prepared as in Examples 1-4 above may be used in the actual operation depending on condition of the automobile, by contrast with the conventional oils, the following conclusions are provided:

TABLE 1

comparison of the anti-burn engine oils
of the invention and conventional oils

function	conventional oils	anti-burn engine oils

lubricating	Dry friction exists between	Dry friction between the
	the towed particles and the	towed particles and the
	friction pair parts	friction pair parts is
		eliminated
cooling	Cooling by circulation	Cooling by circulation,
		reducing engine friction
sealing	Liquid sealing	Multi body sealing
cleaning	The carbon deposits, the film	Anti-catabolic, anti-aging,
	was washed down, dispersed	no replacement
	in oil, and the oil needs to
	be replaced after a period of
	time
lifetime	Below ten thousand	Below one hundred thousand
	kilometers	kilometers
Use mode	After a period of time need to	After a period of time, simply
	replace oil	add the normal loss of oil,
		does not need to replace them
		all.

Seen by the actual application, anti-burn engine oil provided by the present invention has excellent lubrication, cooling, sealing, anti-oxidation properties, and can prevent from burning oil phenomena, prolong the service life of the engine oil, save oil costs, reduce costs of the car maintenance.
The anti-burn engine oil and its preparation method of the present invention are described in detail as above. Specific examples of the application of the principles and embodiments of the present invention have been described; the above embodiment is described only to help understanding of the method and core ideas of the present invention. It should be noted that those of ordinary skill in the art, in the present invention without departing from the principles of the present invention may also make a number of improvements and modifications, improvements and modifications which are also within the scope of the claims of the invention.

Claims

1.-10. (canceled)

11. An anti-burn engine oil comprising:

a base oil; and

at least one copper powder or ceramic powder having a particle size of 110 nm-300 nm and an aspect ratio of no greater than 3:1;

wherein the at least one copper powder or ceramic powder is present in a content of 25 g-100 g/liter of the base oil.

12. The anti-burn engine oil of claim 11, wherein the base oil comprises API group III base oil or synthetic base oil.

13. The anti-burn engine oil of claim 11, further comprising a liquid additive comprising, in percentage by total weight of the base oil and the liquid additive:

balanced with the base oil.

14. The anti-burn engine oil of claim 13, wherein the base oil comprises API group III base oil or synthetic base oil.

15. The anti-burn engine oil of claim 13, wherein the dispersant comprises at least one of polyisobutylene-bis-succinimide, polyisobutylene-multi-succinimide and single linked succinimide dispersant.

16. The anti-burn engine oil of claim 13, wherein the detergent comprises at least one of synthetic sulfonate, thioalkyl phenate and salicylate.

17. The anti-burn engine oil of claim 13, wherein the anti-corrosion agent comprises at least one of zinc dialkyl dithiophosphate, zinc dialkyl dithiocarbamate and parathion alkyl zinc salt.

18. The anti-burn engine oil of claim 13, wherein the antioxidant is 2,6-di-tert-butyl-p-cresol, 4,4-methylene bisphenol, a-naphthylamine, N,N-di-sec-butyl-p-phenylenediamine.

19. The anti-burn engine oil of claim 13, wherein the viscosity index improver comprises at least one of ethylene-propylene copolymer and hydrogenated styrene-diene copolymer.

20. A method for preparing an anti-burn engine oil comprising:

obtaining at least one copper powder or ceramic powder having a particle size of 110 nm-300 nm and an aspect ratio of no greater than 3:1;

obtaining a base oil; and

mixing the copper powder or ceramic powder and the base oil;

wherein 25 g-100 g of the copper powder or ceramic powder is added per liter of the base oil.

21. The method of claim 20, further defined as comprising:

first creating a mixture of the base oil with a liquid additive comprising, in percentage by total weight of the base oil and the liquid additive:

balanced with the base oil; and

then adding the copper powder or ceramic powder into the thus-obtained mixture.