JP2003336086A - Tourmaline-containing lubricating oil additive, tourmaline-containing lubricating oil, method for producing tourmaline-containing lubricating oil, tourmaline-containing oil filter, and internal combustion engine with lubricating oil recirculation passage in which particulate tourmaline is disposed - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lubricating oil additive, such as an antioxidant, which does not undergo deterioration with time in an antioxidant action, is nontoxic and safe, and is inexpensively produced and to provide a lubricating oil. <P>SOLUTION: The lubricating oil is formed by colloidally distributing powdery tourmaline in a base oil. The powdery tourmaline acts as an antioxidant. It is more effective when used as an engine oil which is exposed to stimuli such as violent heat, impacts, vibrations, or light. The longer the base oil is used, the further it is reduced to prevent its oxidation. The lubricating oil antioxidant additive is friendly to the environment because it comprises tourmaline which is added as a minus-ion-generating source to health water. Therefore, when it is added to a lubricating oil and is discharged in an exhaust gas, it is harmless to humans. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a lubricating oil such as an engine oil, a lubricating oil additive, an oil filter, and an internal combustion engine such as a gasoline automobile.

[0002]

2. Description of the Related Art A typical lubricating oil that consumes a lot is for automobiles.
It is the engine oil of. Engine oil is piston and shirin
Seal the gap (50 to 120 microns) in the dar and
Lubricate between ton ring and cylinder, and piston
To prevent the ring from sticking to the piston, sludge and
Washing out carbon. Lubricating oil such as engine oil
Is generally obtained by adding additives to the base oil.
It Base oil is manufactured by fractionating and refining crude oil.
It Lubricating oil additives include antioxidants, rust inhibitors, and viscosity
There are index improvers. The antioxidant is a base oil (base oil).
Acid value and viscosity
The purpose of this is to prevent rising of water and generation of sludge. Antioxidant
Zinc dithiophosphate (ZnDTP) is the main inhibitor
Used in addition to zinc dithiocarbamate, hinder
Dephenol, sulfurized olefin and the like are known. air
In the presence of, and in a high temperature environment such as a car engine
The base oil is easily oxidized. By the oxidation of the base oil,
The child is broken down into alcohol, aldehydes, ketones, cal
Oxides such as boric acid are generated and the kinematic viscosity of the lubricating oil does not decrease.
This leads to deterioration of lubrication performance. Use of deteriorated lubricating oil
If it continues, the molecular weight will increase due to thermal polymerization and lubrication.
When the viscosity of oil rises and it deteriorates further, it is called sludge.
A mud-like slag is generated. If sludge is generated, it will
The lubricity of the lubricating oil is significantly reduced and the frictional resistance is increased. Jun
For the oxidation of lubricating oil, refer to the Japan Lubricating Oil Association home page.
Page. The main points of the description are extracted next.
It When the acid reaction of lubricating oil proceeds by the following chain reaction
It is considered. In the following, RH is a hydrocarbon molecule,
Represents a free radical. Thus, hydrocarbons (RH) are decomposed in the presence of oxygen.
Then, an active free radical R · is formed. Free radical R
Reacts with oxygen to become peroxide radicals ROO. Peroxide
Radical ROO · reacts with new hydrocarbon RH and
Hydroperoxide (ROOH) and a new free part R ・
And the chain is further propagated and the hydrocarbon RH
It is subsequently oxidized. The chain of oxidation reactions is
Continue until it happens. Antioxidants are chained because of their different actions.
It is divided into terminators, peroxide decomposers, and metal deactivators.
The chain terminator is a highly active chain propagating agent (ROO., R
・) To stop the chain reaction of oxidation. For chain stopper
Include phenols and aromatic amines. Peroxide content
Hydroperoxide generated by oxidation reaction
Decomposes (ROOH) and transforms it into a stable compound, initiating a chain
Prevent the reaction from starting. The peroxide decomposer contains sulfur compounds.
Substance, sulfur / phosphorus compounds, etc., zinc dithiophosphate
(ZnDTP) is the most typical. Metal deactivators are catalysts
By suppressing the activity of the metal that accelerates the oxidation reaction by the action,
To prevent acid value. The metal deactivator should be coated on the metal surface.
A type that forms a film and suppresses metal activity, and dissolves in oil
Reacts with a given metal and turns it into an inactive compound
There is a type.

[0011]

In the lubricating oil to which the conventional antioxidant such as zinc dithiophosphate is added, the oxidation of the base oil can be suppressed to some extent. However, conventional lubricating oils added with antioxidants are oxidized with continued use, the acid value increases, and the lubricity deteriorates. Also, conventional additives such as zinc dithiophosphate have some toxicity because they contain heavy metals such as zinc. Therefore, it is not preferable for the human body to come into contact with conventional antioxidant-added lubricating oil, and when using conventional antioxidant-added lubricating oil as engine oil, the exhaust gas of the engine contains heavy metals, Causes air pollution. Further, when the conventional lubricating oil to which the antioxidant is added is discarded as waste oil, it is easy to cause environmental pollution. Moreover, conventional antioxidants such as zinc dithiophosphate are expensive because the production of conventional antioxidants such as zinc dithiophosphate requires complicated steps and expensive equipment. Therefore, it is an object of the present invention to provide a lubricating oil additive such as an antioxidant and a lubricating oil which are safe with no deterioration of antioxidant action over time, are nontoxic, and are inexpensive to produce.

[0015]

In order to solve the above problems, the present invention provides the following means.

(1) A lubricating oil additive such as a lubricating oil antioxidant containing at least one of powdered tourmaline or a colloidal solution containing tourmaline as a dispersoid. (2) A lubricating oil to which at least one of powdered tourmaline or a colloidal solution containing tourmaline as a dispersoid is added. (3) In the method for producing a tourmaline-added lubricating oil in which at least one of powdered tourmaline or a colloidal solution containing tourmaline as a dispersoid is added to a base oil, the base oil is passed through a powdery tourmaline layer. And a second step of passing the tourmaline-eluting base oil produced in the first step through a filter, wherein the tourmaline-eluting base oil that has passed through the filter is added with the tourmaline-added lubricant. A method for producing a tourmaline-added lubricating oil, which comprises using an oil. (4) A filter which is arranged in a circulation path of a lubricating oil in an internal combustion engine and removes particles such as sludge having a diameter of D1 or more, wherein the filter contains granular tourmaline having a diameter of D1 or more. (5) An internal combustion engine in which granular tourmaline is arranged in a lubricating oil circulation path.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION Next, embodiments of the present invention will be given.
The present invention will be described in more detail. FIG. 1 is a diagram showing in principle a method for producing a lubricating oil containing an antioxidant according to an embodiment of the present invention. In the figure, 1 is powdered tourmaline, 2 is a filter, 3 is a funnel, 4 is a beaker, 5 is a lubricating oil to which an antioxidant is added, and 6 is an arrow indicating the direction of feeding the base oil. In FIG. 1, the filter 2, the funnel 3 and the beaker 4 are drawn in cross section, but the hatching normally drawn to show the cross section is omitted. Further, the powdery tourmaline 1 is schematically represented by a number of points in the figure. Tourmaline 1 is a powder of 325 mesh. The particle size of the powdery tourmaline 1 is about 45 microns. The filter 2 is obtained by filtering ground coffee beans with hot water and stacking two coffee filters to be used for producing drinking coffee at home. Fig. 1 of 4g powdered tourmaline 1
As described above, the powdery tourmaline 1 is filled with 1 liter of the base oil from the direction of the arrow 6 above. At this time, the base oil is poured onto the powdery tourmaline 1 at such a speed that the powdery tourmaline 1 is naturally moistened while soaking into the powdery tourmaline 1 and gradually collecting in the lower beaker 4. As described above, the powdery tourmaline 1 to which the base oil is poured passes through the filter 2 while being mixed with the base oil, and is collected in the beaker 4 in a state of being mixed with the base oil. In the oil collected in the beaker 4, the tourmaline 1 is dispersed in the base oil in a colloidal form without settling on the bottom of the beaker 4. The oil accumulated in the beaker 4 is the lubricating oil according to the embodiment of the present invention, and the powdery tourmaline 1 is the lubricating oil antioxidant according to the embodiment of the present invention. Further, the method of dissolving the powdery tourmaline 1 in the base oil as described above is the method for producing a lubricating oil according to the embodiment of the present invention. Instead of the base oil in the above-mentioned manufacturing method, engine oil after traveling 3000 km on a scooter of 250 cc was poured into granular tourmaline 1 in FIG. 1 to produce tourmaline-added lubricating oil. During the 3,000 km run, use normal commercial 10W30 lubricating oil,
Tourmaline was added to a commercially available engine oil that had deteriorated after traveling for 00 kilometers to produce a tourmaline-added lubricating oil as one embodiment of the present invention. The acid value of the deteriorated commercially available 10W30 engine oil after running 3000 km was inspected with a heating oil and fat deterioration degree test paper. This heating oil and fat deterioration degree test paper is manufactured by Toyo Roshi Kaisha, Ltd., which has an address at 1-5-10 Kotobuki, Taito-ku, Tokyo, 1-15-1 Kyobashi, Chuo-ku, Tokyo.
Ajinomoto Co., Inc. (phone number: 03-5250-81)
64), the main component of which is the pH indicator bromthymol blue (BTB), and the color value of BTB allows the acid value of fats and oils to be determined by color. The test paper is soaked in oil and fat for 2 seconds and taken out after 30 seconds. The acid value of the fats and oils is measured by comparing the color of the test paper after 30 seconds with the color of the color tone chart. When the color of the test paper is ocher, the acid value is 4.0, which is the highest value, and when the color of the test paper is dark blue, the acid value is 0, which is the lowest. When a test paper for determining the degree of deterioration of heated fats and oils was immersed in deteriorated commercially available 10W30 engine oil after traveling 3000 km and tested, the color of the test paper was yellow, and the acid value of the deteriorated engine oil was clearly 4.
It was 0 or more. Tourmaline was added to the deteriorated engine oil by the above-mentioned method to produce 1 liter tourmaline-containing lubricating oil, and a heating oil / fat deterioration test paper was dipped in the tourmaline-containing lubricating oil to measure the acid value.
The test paper had a green color and the acid value was determined to be about 2.0. Next, a tourmaline-containing lubricating oil was supplied as the engine oil of the same scooter of 250 cc, the scooter was allowed to idle for 15 minutes, and then the acid value of the engine oil was inspected with the above test paper. Present
It was shown that the acid number was between 1.0 and 2.0. Subsequently, the 250 cc scooter filled with a tourmaline-containing lubricating oil as an engine oil was run for 200 km, and the acid value of the engine oil was inspected with the test paper.
At this time, the test paper exhibited a dark green color, indicating that the acid value was between 0.5 and 1.0. The following can be said from the above tests. When tourmaline is added to a commercially available engine oil that has deteriorated due to oxidation and deteriorates, the acid value of the engine oil decreases. That is, tourmaline has a reducing action. Tourmaline-containing engine oil is further activated by the action of reducing the engine oil by the rotation of the engine. The more the engine is used, the more the oxidizing components are reduced, the acid value of the engine oil is reduced, and the engine oil is reduced. Revive. The reducing action of tourmaline has already been described as one of the health promoting actions of tourmaline in food and drinking water. For example, tourmaline generates hydroxyl ions in water, and the hydroxyl ions have a reducing effect and a function to reduce clusters. For example, on the Internet, the Tokai University Faculty of Liberal Arts Department of Human Environment Natural Environment Course Uehara Research Site It has been published. Furthermore, tourmaline passes a weak electric current in water and air, electrolyzes water in water and generates negative ions, and generates negative ions in air. It has also been reported that it is proportional to the magnitude of vibration, shock, heat, light, etc. As described above, if the action of tourmaline in lubricating oil is estimated from the action of tourmaline in water and air, tourmaline produces negative ions when it is in a colloidal state in lubricating oil, as in water or air. It is considered that it is generated and reduces the lubricating oil of the medium. Therefore, the tourmaline in the tourmaline-added lubricating oil of the present embodiment acts as an antioxidant, and it can be said that the tourmaline at this time is a lubricant antioxidant. When adding tourmaline to engine oil, it receives a huge amount of energy vibration, shock, heat and light from the engine,
Due to these external stimuli, the reducing action of tourmaline is extremely enhanced, and the reducing action does not deteriorate even if it is used continuously, and the reducing action is further strengthened in proportion to the degree of severe use in the engine. ing. Tourmaline is said to have a stronger effect when it is subdivided into very fine particles due to an increase in the surface area. It can be said that it appeared even stronger.

As described above in detail, according to the present invention, a lubricating oil antioxidant additive is obtained which does not deteriorate with time but reduces the lubricating oil as much as it is used. In addition, since this lubricating oil antioxidant additive is tourmaline added to health water as a source of negative ions, it is environmentally friendly and does not pollute the atmosphere even when added to lubricating oil and discharged into exhaust gas. It is safe for the human body. Of course, tourmaline is safe to touch the human body. Further, tourmaline is a substance that exists in a large amount in naturalization, is cheaper than zinc, etc., and the manufacturing equipment cost and labor cost for powdering or fluidizing processing are also low, so the lubrication of the present invention is Oil antioxidant additives and lubricating oils can be manufactured inexpensively.

[Brief description of drawings]

FIG. 1 is a diagram schematically showing an apparatus for producing an antioxidant-added lubricating oil according to an embodiment of the present invention.

[Explanation of symbols]

1 ... Powdered tourmaline 2 ... Filter 3 ... Funnel 4 ... beaker 5 ... Lubricant 6 ... Arrow indicating the base oil feeding direction

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) C10N 10:16 C10N 10:16 20:06 20:06 A 30:10 30:10 40:25 40:25 (54) [Title of the Invention] A lubricating oil additive containing tourmaline, a lubricating oil containing tourmaline, a method for producing a lubricating oil containing tourmaline, an oil filter containing tourmaline, and an internal combustion engine in which granular tourmaline is placed in a lubricating oil circuit.

Claims (5)

[Claims] 1. A lubricating oil additive such as a lubricating oil antioxidant containing at least one of powdered tourmaline or a colloidal solution containing tourmaline as a dispersoid. 2. A lubricating oil to which at least one of powdered tourmaline or a colloidal solution containing tourmaline as a dispersoid is added. 3. A method for producing a tourmaline-added lubricating oil in which at least one of powdered tourmaline or a colloidal solution containing tourmaline as a dispersoid is added to a base oil, the base oil being passed through a powdery tourmaline layer. A first step of eluting tourmaline in the base oil, and a second step of passing the tourmaline-eluting base oil produced in the first step through a filter
The method for producing a tourmaline-added lubricating oil, wherein the tourmaline-eluting base oil that has passed through the filter is used as the tourmaline-added lubricating oil. 4. A filter for removing particles such as sludge having a diameter of D1 or more, which is disposed in a lubricating oil circulation path in an internal combustion engine, wherein the filter contains granular tourmaline having a diameter of D1 or more. 5. An internal combustion engine in which granular tourmaline is arranged in a lubricating oil circulation path.