WO1996026256A1

WO1996026256A1 - Composition for cleaning and coating the interior of an internal combustion engine and method for cleaning and coating the interior of an internal combustion engine therewith

Info

Publication number: WO1996026256A1
Application number: PCT/JP1995/000281
Authority: WO
Inventors: Noboru Ishii
Original assignee: Better Mask Co., Ltd.
Priority date: 1995-02-24
Filing date: 1995-02-24
Publication date: 1996-08-29
Also published as: EP0811676B1; DE69531899D1; EP0811676A4; EP0811676A1; KR19980702400A; KR100300625B1; DE69531899T2

Abstract

A composition containing as constituents zinc phosphate, solvent, surfactant, natural vegetable oil and mineral oil for cleaning the interior of an internal combustion engine and cleaning and coating metallic surfaces of rotating and sliding portions thereof so as not only to reduce friction on rotating and sliding portions of the internal combustion engine or friction loss produced thereat by effecting cleaning and/or coating thereon but also to reduce factors that would cause incomplete combustion in a combustion chamber to thereby improve the performance of the internal combustion engine and allow the engine to deliver its original performance, and a method using the same composition for cleaning and coating the internal combustion engine.

Description

Description Cleaning inside an internal combustion engine · Coating composition and cleaning inside an internal combustion engine using the composition · Coating method Technical field

TECHNICAL FIELD The present invention relates to a composition for cleaning and coating the inside of an internal combustion engine, a method for cleaning the inside of an internal combustion engine using the composition, and a method for coating a rotating part and a sliding part of the engine, particularly a metal part thereof.

Background art

To remove dirt from oxidized waste such as carbon and sludge accumulated inside the internal combustion engine, disassemble each part of the internal combustion engine, wash and remove dirt adhering or sticking to each part, and reassemble. The current state of the art is to rely on technical skills and patient methods. However, there are some engine parts that are not easily disassembled and delicate parts with minute pores, making complete cleaning extremely difficult. Of course, a generally known cleaning method using a flushing oil is also performed, but it is a reality that only the surface of dirt is rinsed, and there is substantially no cleaning effect.

As mentioned above, the cleaning of the internal combustion engine must be done by the patience, time and cost of disassembly and maintenance by a skilled technician. In addition, abrasion marks on the surface of metal sliding parts generated by friction in the rotating and sliding parts of the internal combustion engine.Strain friction generated from minute irregular pores in the background of fine scratches and metal itself causes microvibration and rotation. At present, it is a cause of friction loss, such as the occurrence of unevenness, and the explosion energy (power energy) is attenuated, causing the performance of the internal combustion engine to deteriorate.

Target internal combustion engines include gasoline, diesel, propane, rotary engines, and other general passenger cars, buses, trucks, motorbikes, and other agricultural engines, construction vehicle engines, ship engines, Engines for industrial use (compressor, power generation, cooling), aircraft engines, etc. Power especially for automobiles including internal vehicles (internal combustion engine), motorbikes Strain friction should be maintained in a regular manner, the subtle deviation of the cooperative operation process of the mechanism (valve system 'rotating part' sliding part) leading to suction, compression, explosion, and exhaust (timing deviation between ignition and valve operation) As a result, incomplete combustion may occur, resulting in performance degradation and not only the inherent performance degradation such as starting and acceleration performance, but also engine noise increase due to metal fatigue, and oil film in the rotating and sliding parts. The decrease in lubricity due to unevenness increases the frictional resistance (friction loss), and at the same time, causes a decrease in airtightness and compression force caused by the combustion chamber, resulting in a decrease in combustion force (decrease in explosive force). Deterioration of fuel consumption performance resulting from incomplete combustion, and increase in the amount of carbon monoxide and hydrocarbons in exhaust gas have caused deterioration of living environment and social problems. That's at present.

Disclosure of the invention

The inventor of the present invention completely cleans especially fixed oxidized waste such as carbon and sludge deposited inside the internal combustion engine regardless of the time-consuming and time-consuming method of disassembling the inside of the internal combustion engine, cleaning each part, and assembling. A method for improving and improving engine performance by coating and correcting flaws, friction marks, wear marks, hairline-like rough and damaged metal parts on the metal surface of the rotating and sliding parts of the internal combustion engine at the same time as discharging. As a result of intensive studies, the present invention has been completed.

The present invention provides a method for cleaning and discharging (removing) oxidized waste products that have adhered without disassembling the engine engine body for internal combustion, and at the same time performing coating (correction of a coating) on a rough metal surface by a frictional reaction. It is something you want to do.

Another object of the present invention is to provide a cleaning / coating composition used in a method for cleaning and coating without disassembling each part of an internal combustion engine.

The composition for cleaning and coating the inside of an internal combustion engine according to the present invention is a composition containing a zinc phosphate salt, a solvent, a surfactant, a mineral oil, and a natural vegetable oil as main components.

BEST MODE FOR CARRYING OUT THE INVENTION

That is, a first aspect of the present invention relates to a composition for cleaning and coating the inside of an internal combustion engine, comprising a zinc phosphate salt, a solvent, a surfactant, a natural vegetable oil, and a mineral oil. 0.3-3.5% by weight zinc phosphate salt, 25-45% by weight Solvent, 3.5 to 18% by weight of surfactant, 6 to 12% by weight of mineral oil and 6 to 12% by weight of natural vegetable oil, and zinc phosphate salt, solvent, interface An activator, a mineral oil, and a composition for cleaning and coating the inside of an internal combustion engine having a total amount of 100% by weight of natural vegetable oil and water,

The third and fourth aspects relate to the method for cleaning and coating the inside of an internal combustion engine using the coating composition for cleaning the inside of an internal combustion engine according to the first or second aspect. is there.

Hereinafter, the present invention will be described in more detail.

In the specification of the present application, zinc phosphate means not only zinc phosphate tetrahydrate but also zinc dialkyldithiophosphate, zinc diaryldithiophosphate, a mixture of dialkyldithiophosphate and zinc oxide, Or, it also refers to a mixture of alkyl alcohol, or aryl alcohol, phosphorus pentasulfide (p ₂ s ₅ ), and zinc oxide.

In addition, it also includes a composition containing a zinc phosphate salt, which is commercially available as “zinc” as an engine oil imparting agent.

Zinc phosphate salts are rough metal surfaces such as rotating parts, sliding parts, hair lines on metal surfaces, scratches, and fine irregularities (porosity), which can cause lubricity and cause friction loss in engine engines. Parts are evenly coated (impregnated) repaired, distorted rotation and smoothness (lubricity) are balanced (corrected and corrected), and the frictional resistance of each part of the engine is reduced, engine rotation (performance) and combustion Performance can be improved.

The amount of zinc phosphate used in the composition is from 0.35 to 3.5% by weight. If the amount is less than 0.35% by weight, the coating effect is not sufficient, and even if the amount exceeds 3.5% by weight, the coating effect is not significantly improved.

Zinc dithiophosphate is dispersed in mineral oil and then mixed and dispersed with other components. That is, when zinc phosphate tetrahydrate is used, it is dissolved in a small amount of water (usually a solution containing a small amount of an acid or an alkali) and then dissolved in a mineral oil in an amount of 0. What is necessary is just to mix and disperse so that it may become 35-3.5 weight%.

As mineral oil, commercially available mineral oil can be used, but bright stock (or bottom) oil (high-concentration virgin oil) is preferably used. The above mineral oil The amount used in the total composition may be appropriately selected within the range of 6 to 12% by weight based on the total weight of the composition.

In the case of a commercially available product called “zinc”, the mineral oil already contains zinc phosphate in an amount of about 5% to about 23% by weight. May be added in an amount of about 6.3 to about 15.5 parts by weight based on 100 parts by weight of the composition. Of course, in this case, mineral oil need not be used because it is contained in zinc.

The solvent used in the present invention is a petroleum solvent, for example, an aromatic solvent, an aliphatic solvent, or a mixture thereof.

For example, Nippon Oil Co., Ltd., manufactured by Mobil Inc., Pegasol AN-45, Pegasol 304, etc., Exxon D40, D800, D110, Bisoper M, Bispar H, etc. A Solvent, K Solvent, Teclean Series N—20, N—22, N—24, Idemitsu Petrochemical's IP Solvent—166, 20, 28, Nippon Mining Oil NS Clean 1 Various petroleum solvents such as 00, 110, Mitsubishi Petroleum Mineral Tap Pen, Solvent, Shell Japan Shellsol 70 and Shellsol 71 can be used.

The solvent is used for mixing and dissolving with other components used in the composition, and for dissolving and removing oxidized waste substances such as carbon and sludge adhered or deposited inside the engine engine. Camshafts, rocker arms, rocker shafts, crankshafts, pins and bearings, tappets, pushrods, valves, springs, cylinder liners, pistons and pins, compression rings, oil rings, bearings, connecting locks , Connecting rod cap, oil storage

—The oil passages (oil galleries), plain metal bearings, etc., are especially difficult to handle even when disassembled in the rotating and sliding parts. Therefore, a solvent suitable for solubility is desirable. However, when selecting the solvent, it must be free from harm (adverse effects) to other engine parts (gasket and other packing, sealing parts), and must be a substance with low danger such as explosive flammability. Needless to say, it is necessary to pay attention to the selection. The amount of the solvent used is 25 to 45% by weight of the total amount of the composition. If less than 5% by weight, remove oxidized waste The effect is not sufficient, and if it is used in excess of 45% by weight, there may be a problem with flammability.

As the surfactant, anionic, nonionic, amphoteric, or cationic surfactant can be used. These are used alone or as a mixture.

Surfactants are used primarily for emulsifying and dispersing each component of the composition, but secondly, they promote the dissolution and dissolution of oxidized waste such as carbon and sludge due to their permeability and activation (active action). Thirdly, neutralize to a mild and harmless effect by dispersing (emulsifying) flammable compositions such as petroleum solvents and natural vegetable oils in water. Used to neutralize and eliminate dangers such as flammability.

The surfactant may be any of anionic, nonionic, amphoteric and cationic surfactants, but nonionic alkylphenylpolyoxyethylene ether surfactants and polyethylene glycol fatty acid ester surfactants Agents and the like are preferably used.

The amount of the surfactant used is 3.5 to 18% by weight of the total amount of the composition. If the content is less than 3.5% by weight, the effect of emulsifying and dispersing all the components is not sufficient. If the content exceeds 18% by weight, foaming becomes a problem, and further improvement in detergency cannot be expected. The natural plant-based oil promotes effective fusion and mixing of the components and improves the dissolving and removing effect of oxidized waste materials, such as bonbons and sludge, which have adhered and deposited inside the engine. Used for masking effect. As natural vegetable oils, terbineol, d-limonene, eugenol, I-Ichi-Rubon can be used. The amount of the natural vegetable oil used is selected from the range of 1.6 to 12% by weight of the total composition.

If the amount is less than 1.6% by weight, the masking effect is not sufficient, and if the amount is 12% by weight, the masking effect is sufficient. It is.

The total amount of the composition according to the present invention is adjusted to 100 parts by weight by adding water to the mixture of the above components. Usually, the amount of other components is selected and used so that the amount of water used is from 28% to 55% by weight of the total composition. Of course, water is added to the composition of each of the above components when used. It can also be used.

Therefore, the above components were added in the above proportions, namely, 0.35 to 3.5 parts by weight of zinc phosphate, 6 to 12 parts by weight of mineral oil, 25 to 45 parts by weight of solvent, 3 A formulation comprising 5 to 18 parts by weight of a surfactant and 1.6 to 12 parts by weight of a natural vegetable oil is also an embodiment of the present invention.

The water is preferably pure water or distilled water, but can be used if it is fresh water. Since the cleaning composition according to the present invention is used after extracting the lubricating oil in the internal combustion engine, it is necessary that the cleaning composition has physical properties capable of ensuring lubricity as much as possible. Therefore, each component should be selected so as to obtain lubrication properties.

The cleaning / coating composition may be obtained by mixing and stirring the above components, and is not particularly limited by a mixing method or a stirring method.

Next, the cleaning / coating method according to the present invention will be described.

The cleaning / coating method of the present invention can be applied to any internal combustion engine, regardless of its type. In other words, passenger cars such as gasoline engines, diesel engines, LPG engines, mouth-to-mouth engines, buses, trucks, motorbikes, construction vehicles, agricultural machinery, marine engines, aircraft engines, cooling engines, generator engines, It can be applied to various internal combustion engines such as a compressor engine.

In the method for cleaning and coating an internal combustion engine according to the present invention, after completely removing the engine oil of the internal combustion engine, the above-mentioned cleaning composition is injected into the engine instead of the oil, and the same composition is supplied to the oil passage for a certain period of time. (Oil gallery) and circulates through the entire engine, especially by contact friction reaction with its rotating and sliding parts (each engine part).

The cleaning / coating method according to the present invention will be described using an example of an automobile engine.

For cleaning and coating, use within 80% to 120% of the amount of engine oil used.

First, open the drain cock of the oil pan and drain all the engine oil.

After the drain cock of the oil pan is completely closed, the composition according to the present invention in an amount of 80% to 120% of the amount of the used engine oil is injected from the engine oil inlet. Next, in order to circulate the composition according to the present invention throughout the engine, the engine is started and idling is performed for a certain time, for example, about 1 to 5 minutes.

Stop the engine, let it stand for 10 to 30 minutes after stopping, then let it idle again. Let the engine idle for at least 10 to 30 minutes, stop the engine again, open the drain cock, and remove the entire amount of the cleaning composition used for cleaning.

After the entire amount has been removed, the used composition remaining in the engine is rinsed by flushing with a flushing oil by idling for 5 to 20 minutes to remove the used composition. This washing is preferably performed at least twice.

After washing is completed, replace the oil filter with a new one and inject new engine oil with the specified amount.

This operation not only cleans the engine but also coats the metal surfaces of the rotating and sliding parts of the engine. As a result, the surfaces of the rotating and sliding parts become smooth, frictional resistance is reduced, and power performance (output) and fuel consumption performance are improved without the explosion energy (expansion energy) attenuating. Of course, the life of the institution will be extended.

Hereinafter, the present invention will be described with reference to examples, but it is needless to say that the present invention is not limited to the examples.

Example 1 (Composition)

Zinc products containing zinc phosphate in oil (zinc thiophosphate 'zinc dithiophosphite) in advance as zinc phosphate salt were used as zinc phosphate salt in an amount of 1.25% by weight in the total composition. 5.7% by weight of mineral oil, 7% by weight of zinc phosphate and mineral oil in the total composition, 26% by weight of naphthenic paraffin petroleum solvent Nippon Oil N-22, 26% by weight of natural plant A mixture consisting of 6 parts by weight of d-limonene as a base oil, 8 parts by weight of a nonionic surfactant nonylphenol EO adduct as a surfactant, and 5 parts by weight of an amphoteric surfactant, imidazolymine betaine. In addition, the mixture was sufficiently stirred, and after stirring, water was added so that the total amount was 100 parts by weight, followed by further stirring to obtain a washing / coating composition.

Example 2 (Composition) Cleaning and coating agent composition in the same manner as in Example 1 except that 5 parts by weight of the non-ionic surfactant poly (ethylene glycol) fatty acid ester were used instead of 5 parts by weight of the amphoteric surfactant imidazolium betaine used in Example 1. I got something.

Example 3 (Composition)

Washing was carried out in the same manner as in Example 1 except that 5 parts by weight of the cationic surfactant monoalkylammonium chloride was used instead of 5 parts by weight of the amphoteric surfactant imidazolymbetaine used in Example 1. ♦ A composition for a coating agent was obtained.

Example 4 (Washing and coating method)

Using the cleaning and coating composition obtained in Example 1, cleaning and coating were performed under the following conditions.

Cleaning and coating conditions

1. Vehicle to be cleaned

Showa 63 Model (Model G-10S)

Dino, Tsu 'Charade GT-XX Twin Cam' turbo car

Displacement 1 0 0 0 c c Mileage 100,000 0 0 0 Km

2. Engine performance of the vehicle to be cleaned

(1) Preliminary measurement of carbon monoxide (CO) and hydrocarbon (HC) concentrations in the exhaust gas from the engine of the vehicle to be cleaned

CO concentration: 0.2%

HC concentration: 260 PPM

And the maximum output is measured by chassis dynamo

74.6 horsepower (catalog data: 105 horsepower).

(2) Cleaning and coating procedures are as follows.

A. Completely drain the oil and inject the cleaning composition of the present invention.

Idling with no accelerator for 1 minute.

ゥ. Stop the engine and leave for 15 minutes.

D. Again, no idling with no accelerator for 10 minutes. E. Drain cock for the cleaning / coating composition of the present invention,

Washed twice with mineral oil for flushing.

Replace the power and oil elements with new ones and change the oil.

Was carried out according to the procedure described in

3. Washing 'engine performance after coating

C O concentration: 0.0% (No detection at all even if measured for more than the specified time.)

H C: 200 P P M

When the maximum output was measured, almost the catalog data

9 5.2 horsepower

And had improved.

When the injected cleaning agent is removed, the color has changed to dark brown indicating that carbon and sludge etc. have been dropped inside the engine, and it is in a "smooth state" before use, and flows easily. What I was doing was changing to "Drunk state". From this, it is judged that the cleaning and coating composition according to the present invention has an extremely excellent cleaning action. Further, even in view of the running distance of the vehicle used, the improvement of the output is not sufficient for the engine. There is no explanation other than determining that the function itself has been restored.

Other engine mechanical noise was drastically reduced, and quietness was remarkably observed. This is considered to be the effect of the coating of the rotating and sliding parts (as a result of restoration).

Example 4 (Washing 'coating method)

The same operation as in Example 3 was carried out with a mileage of 998 2 km. Nissan Pulsa 1 170 Occ Diesel of January 1992 (Model X—SN14, Model of motor CD—17) Repeated using.

The smoke concentration of the exhaust gas before treatment by the washing and coating method according to the present invention was 58% as measured by a smoke checker.

After the washing and coating, the density of black smoke was measured again. In addition, the engine noise when idling is mechanical. The sound power became "mellow". In addition, the black smoke disappeared during the andring, and the engine rotation, which had peaked at 3,000 to 4,000 rotations, began to blow up to the red zone at once.

According to the results of the test run,

The maximum speed before the test was 140 km / h at the meter reading, but after processing by the method according to the present invention, the maximum speed was 170 km / h at the maximum speed reading. Had improved. The upslope was smooth over the entire rotation range and the axel response was remarkably improved, and the so-called "peaking out" was eliminated even at the high rotation range. It was confirmed that.

Further, according to the results of the continuous test run, the status of the continuous run test up to about 9 months after the cleaning and coating treatment is as follows.

(1) Current vehicle status

Driving distance: about 300 km

Engine trouble, etc .: None

(2) We have traveled about 2000 km until now, but no trouble has been observed.

(3) The smoke black smoke concentration was measured by a smoke checker and found to be 47%, indicating a slight increase in the smoke concentration. No smoke was found.

Claims

The scope of the claims

1. A composition for cleaning and coating the interior of internal combustion engines, consisting of zinc phosphate, solvent, surfactant, natural vegetable oil, and mineral oil.

2.35-3.5% by weight zinc phosphate, 25-45% by weight solvent, 3.5-18% by weight surfactant, 6-12% by weight mineral oil And 1.6 to 12% by weight of natural vegetable oil, and the total amount of zinc phosphate, solvent, surfactant, mineral oil, and natural vegetable oil and water is 100% by weight. Cleaning inside certain internal combustion engines' coating compositions.

3. Cleaning the inside of an internal combustion engine using the coating composition for cleaning an internal combustion engine according to claim 1 or claim 2. A method for coating.