WO2016088871A1

WO2016088871A1 - Engine cleaning method

Info

Publication number: WO2016088871A1
Application number: PCT/JP2015/084122
Authority: WO
Inventors: 光男小林
Original assignee: 橘隆造; 光男小林
Priority date: 2014-12-04
Filing date: 2015-12-04
Publication date: 2016-06-09
Also published as: JP5926359B1; JP2016109011A; CN107002558A; CN107002558B

Abstract

[Problem] To provide a new engine cleaning method. [Solution] This cleaning gas generator (cleaning gas generator 2) comprises: an electrolysis unit (anode electrode 13 and cathode electrode 14) that generates a decomposition gas by the electrolysis of an electrolyte aqueous solution in which an electrolyte has been dissolved; a storage space (gas region 22) that stores the decomposition gas; an external air intake port (external air intake port 17) that is connected to the storage space and takes in external air; and a discharge port (discharge port 19) that is connected to the storage space and discharges a cleaning gas that contains the decomposition gas.

Description

Engine cleaning method

The present invention is suitable for application to engines of transportation equipment such as airplanes and automobiles.

Conventionally, as an engine cleaning method, a method of adding a cleaning additive to a fuel such as gasoline or a lubricating oil has been widely used (see, for example, Patent Document 1). By cleaning the engine, it is expected to improve fuel efficiency and reduce harmful substances in exhaust gas.

JP 2014-65874 A

By the way, as an engine cleaning method, if there is a method other than adding an additive to fuel or lubricating oil, the options for the user are widened, which is preferable.

The present invention has been made to solve such a problem, and an object thereof is to provide a new engine cleaning method and a gas raw material liquid used for cleaning the engine.

In order to solve this problem, an engine cleaning method according to the present invention provides a cleaning apparatus containing a decomposition gas generated by electrolyzing an aqueous electrolyte solution in which an electrolyte is dissolved in an intake port of the engine in a power unit having an engine. Connect a cleaning gas generator that supplies gas,
In an idling state where the engine is operated by disconnecting the power unit connected to the engine, a cleaning gas is supplied to the engine over a processing time,
The cleaning gas generation device includes:
An outside air inlet is provided, and a required amount of decomposition gas and air are supplied to the engine as the cleaning gas in accordance with suction from the engine.

Thus, in the engine cleaning method, the engine can be cleaned by burning the cleaning gas.

According to another aspect of the present invention, there is provided an engine cleaning method for generating a cleaning gas for supplying a cleaning gas containing at least hydrogen and a required amount of air corresponding to suction from the engine to an intake port of the engine in a power unit having an engine. Connect the equipment,
The cleaning gas is supplied to the engine over a processing time in an idling state in which the engine is operated by disconnecting the power unit connected to the engine.

The present invention can realize a new engine cleaning method.

It is a basic diagram which shows the structure of a diluted electrolyzed water supply apparatus. It is a graph with which it uses for description of the composition ratio of pH and effective chlorine.

Next, embodiments for carrying out the present invention will be described with reference to the drawings.

1 shown in FIG. 1 indicates an engine cleaning system as a whole. In the engine cleaning system 1, the cleaning gas generation device 2 that is supplied with power from the power supply 3 supplies the cleaning gas to the power device 4, thereby cleaning the engine 5 included in the power device 4.

The power source 3 may be a power source via an outlet or a mobile battery device, but preferably has a function of controlling the supplied current. Of course, the cleaning gas generator 2 may have a function of controlling the current instead of the power source 3. The power source 3 is preferably capable of supplying a current of 0.5 to 30 A, more preferably 2 to 20 A, from the viewpoint of the amount of gas generated and safety.

The power unit 4 is various power units having an engine as an internal combustion engine, and can be applied to, for example, boilers, automobiles, railways, ships, airplanes and other mobile devices that generate hot water, generators, and the like.

The power unit 4 operates as a power unit by moving a power unit 6 connected to the engine 5. For example, when the power unit 4 is a car, the power unit 6 is a wheel of the car, and the car runs as the wheel rotates.

In the engine cleaning method of the present invention, a cleaning gas is supplied to the engine 5 while the engine 5 is in operation to clean the engine. From the viewpoint of safety, it is preferable to supply the cleaning gas to the engine 5 in a state where the connection between the engine 5 and the power unit 6 is disconnected, that is, in an idling state.

When engine cleaning is performed in an idling state, the cleaning gas generation device 2 can be temporarily connected to the power unit 4 only when engine cleaning is performed, and the cleaning gas generation device 2 can be removed when the engine cleaning is completed. . As a result, engine cleaning can be performed on a large number of automobiles and the like using one cleaning gas generation device 2.

The cleaning gas is supplied from the cleaning gas generating device 2 to the intake port of the engine 5 through a hose, for example, and is discharged through an exhaust unit 7 such as a muffler.

The engine cleaning according to the present invention is preferably performed continuously for 1 minute or more. The longer the engine displacement is, the longer it is, and it is more preferable that the displacement be [cc] × (0.1 to 1.0) seconds.

As shown in FIG. 2, the cleaning gas generator 2 is an electrolyzer that generates oxygen gas and hydrogen gas by electrolysis. The cleaning gas generator 2 includes a main body 11 and a lid 12 that can be removed from the main body 11. In order to prevent leakage of electrolyte or the like, it is preferable that the main body portion 11 and the lid portion 12 are provided with fasteners that can be engaged with each other.

An anode electrode 13 and a cathode electrode 14 are installed inside the main body 11. The lid portion 12 has a power supply connection portion 16 connected to the power supply 3, and the power supply connection portion 16 is connected to the anode electrode 13 and the cathode electrode 14. Therefore, the current supplied from the power supply 3 is supplied to the anode electrode 13 and the cathode electrode 14 via the power supply connection portion 16.

An electrolyte solution supply unit 15 is formed on the upper surface of the lid 12, and the electrolyte solution is supplied, for example, by inserting the mouth of a plastic bottle containing the electrolyte solution upside down with the bottom facing up. . Of course, you may make it remove the cover part 12 and supply electrolyte solution.

Electrolyte aqueous solution is an aqueous solution in which a so-called electrolyte is dissolved, which conducts electricity when dissolved. The electrolyte to be used is not particularly limited, but preferably does not generate a metal corrosive gas such as chlorine gas or a toxic gas when gasified by electrolysis.

Preferred examples of the electrolyte include sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, sodium sulfate, and sodium bicarbonate. As the electrolyte, only one type may be used, or two or more types may be appropriately mixed.

The electrolyte aqueous solution only needs to conduct electricity supplied from the power source 3, and the concentration of the electrolyte is not limited, but is preferably 0.1 to 10.0% by weight, more preferably, in terms of the balance between energization and the amount of gas generated. Preferably contains 0.5 to 5.0% by weight of electrolyte. When using the hydrate shall not include hydrated moiety (H 2 _O) concentration.

The water used for the electrolyte aqueous solution is not particularly limited, and tap water, soft water, hard water, pure water, etc. can be used. From the viewpoint of controlling the generated gas, use pure water with as few impurities as possible, such as purified water. Is preferred.

The electrolyte aqueous solution is preferably filled up to a predetermined water level in the main body 11. As a result, a filling region 21 filled with an aqueous electrolyte solution and a gas region 22 that is a gas layer are formed inside the cleaning gas generation device 2.

When an electric current flows through the electrolyte aqueous solution, oxygen gas and hydrogen gas are generated at a ratio of 1: 2, and gas derived from the electrolyte is mixed and generated. For example, when sodium carbonate is used as an electrolyte, in addition to hydrogen gas and oxygen gas, carbon dioxide gas is generated, and sodium is not vaporized, and precipitates at the bottom of the filling region 21 as a precipitate. On the other hand, the cracked gas generated by electrolysis is stored in the gas region 22.

The discharge port 19 provided in the lid 12 is connected to the engine 5 by, for example, a hose. The engine 5 sucks up gas contained in the gas region 22 as cleaning gas, uses the gas to burn fuel, and operates itself. An external air inlet 17 is formed in the lid 12. Accordingly, the engine 5 sucks up a necessary amount of cleaning gas composed of decomposition gas and air.

Engine 5 uses a cleaning gas to burn fuel. At this time, since the cleaning gas contains a generated gas generated by electrolysis, the concentration of oxygen gas and hydrogen gas is higher than that of normal air. Since oxygen gas has a strong oxidizing action and hydrogen gas has a strong reducing action, it is considered that unburned residues and the like stuck to the inside of the engine 5 are decomposed and the engine 5 is washed as a result.

The main body 11 has a drain 18 for discharging the aqueous electrolyte solution at a position near the bottom surface on the side surface or on the bottom surface. By allowing drainage from the lower part of the main body part 11, the sediment can be removed simultaneously with the drainage, and the main body part 11 can be easily cleaned.

In this way, the engine 5 can be cleaned by burning the fuel for a certain period of time using the cleaning gas containing the decomposition gas generated by the cleaning gas generator 2 for the engine 5. Become.

Next, the experimental results of applying the engine cleaning method of the present invention will be described.

<Example 1>
As shown in Table 1, the cleaning gas supplied from the cleaning gas generator 2 is predetermined from the intake port of the engine while idling the engine with respect to 10 automobiles having different manufacturers, years, model numbers, and travel distances. Feeded over time. A current of 5.0 A was passed through the cleaning gas generator 2. All automobiles are gasoline cars using gasoline as fuel. As the aqueous electrolyte solution, 2.0% sodium carbonate dissolved in purified water was used.

Before the engine cleaning (before cleaning) and after the engine cleaning (after cleaning), the CO (carbon monoxide) and HC (hydrocarbon) concentrations were measured for the exhaust gas exhausted from the muffler.

As can be seen from Table 2, it was confirmed that the concentration of CO and HC was reduced by performing engine cleaning regardless of the vehicle type and travel distance.

As shown in Table 3, the cleaning gas supplied from the cleaning gas generator 2 is predetermined from the intake port of the engine while idling the engine with respect to 10 automobiles having different manufacturers, year, model number, and travel distance. Feeded over time. The electrolyte and electrolyte concentration used in the aqueous electrolyte solution are as shown in Table 3, and purified water was used. All automobiles are diesel cars using light oil as fuel.

As shown in Table 4, a predetermined current was passed through the cleaning gas generator 2. The NOx (nitrogen oxide) concentration was measured for the exhaust gas exhausted from the muffler before and after engine cleaning.

As can be seen from Table 4, it was confirmed that the NOx concentration can be reduced by performing engine cleaning regardless of the vehicle type, travel distance, electrolyte type and concentration.

<Example 3>
As shown in Table 5, the fuel consumption was compared when the vehicle was driven while changing the rotation speed. The number of rotations shows an average.

Vehicle used: Mitsubishi Fuso KL-FT50JNY Displacement 12880cc Own weight 10800kg Empty condition Driving conditions: Atsugi-Sagamihara (general road), Tomei Expressway

As shown in Table 5, the improvement in fuel efficiency was confirmed regardless of the rotational speed.

According to the above configuration, in the engine cleaning method of the present invention, the cleaning gas containing the decomposition gas generated by electrolyzing the aqueous electrolyte solution in which the electrolyte is dissolved is supplied from the intake port of the engine (engine 5). The engine was put into operation.

Thus, the engine cleaning method can reduce harmful substances in the exhaust gas and improve fuel efficiency.

In addition, the engine is operated with the connection between the engine and the power unit (power unit 6) connected to the engine disconnected.

Therefore, in the engine cleaning method, it is possible to prevent troubles caused by severe operation of the engine when supplying the cleaning gas, and to improve safety.

¡The engine cleaning method can be performed for 1 minute or longer to enhance the cleaning effect.

The engine cleaning method is performed over the displacement [cc] × (0.1 to 1.0) seconds, so that an appropriate cleaning time can be set according to the size of the engine.

In the engine cleaning method, the cracked gas does not contain a metal corrosive gas, so that the engine can be prevented from being damaged and the durability of the engine can be enhanced.

The electrolyte can effectively clean the engine by containing any one of sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, sodium sulfate, and sodium hydrogen carbonate.

The electrolyte aqueous solution can effectively wash the engine by containing 0.1 to 10% of electrolyte by weight.

The engine can be cleaned effectively by applying a current of 0.5 A to 30 A to the electrolyte aqueous solution.

The engine can be cleaned effectively because it is a vehicle engine.

The cleaning gas generation device (cleaning gas generation device 2) includes an electrolysis section (anode electrode 13 and cathode electrode 14) that electrolyzes an aqueous electrolyte solution in which an electrolyte is dissolved to generate decomposition gas, and a storage that stores decomposition gas. An external air inlet (outside air inlet 17) connected to the space (gas region 22) and the storage space and taking in outside air, and an outlet (exhaust port 19) connected to the storage space and discharging the cleaning gas containing decomposition gas. ).

Thereby, the cleaning gas generation device can supply the cleaning gas to the engine by mixing the decomposition gas and the outside air.

The cleaning gas generator is provided with a drain for discharging the aqueous electrolyte solution at the bottom of the electrolysis tank (filling region 21) in which the aqueous electrolytic solution is stored or near the bottom of the side surface. Thereby, the cleaning gas production | generation apparatus can make the replacement | exchange operation | work of electrolyte aqueous solution easy.

In the engine cleaning method of the present invention, the engine is operated while supplying a cleaning gas containing at least hydrogen gas and oxygen gas from the intake port of the engine.

Thus, in the engine cleaning method, various harmful substances adhering to the inside of the engine can be decomposed and cleaned efficiently by the effect of reducing hydrogen and oxidizing oxygen.

In a state where the connection with the power unit connected to the engine is disconnected, the engine is operated while supplying a cleaning gas containing at least hydrogen gas from the intake port of the engine.

Thus, in the engine cleaning method, various harmful substances adhering to the inside of the engine can be decomposed and cleaned efficiently by the effect of hydrogen.

The engine cleaning system 1 includes an electrolysis unit that electrolyzes an electrolyte aqueous solution in which an electrolyte is dissolved to generate a decomposition gas, a storage space that stores the decomposition gas, an outside air intake port that is connected to the storage space and takes in outside air A cleaning gas generation device having a discharge port for discharging a cleaning gas containing decomposition gas, connected to the storage space, and a rechargeable power supply device (power supply 3) for supplying current to the electrolysis section Have

Thereby, the engine cleaning system 1 can clean the engine regardless of the place.

The gas raw material liquid for engine cleaning according to the present invention is an aqueous electrolyte solution in which an electrolyte is dissolved, and does not generate a gas having metal corrosiveness by electrolysis, but allows the engine to suck a cleaning gas containing the generated gas. However, it is used for cleaning the engine that operates the engine.

In the above-described embodiment as the electrolysis unit, the anode electrode 13 and the cathode electrode 14 as the electrolysis unit, the gas region 22 as the storage space, the outside air inlet 17 as the outside air inlet, and the exhaust The case where the cleaning gas generation device 2 as the cleaning gas generation device is configured by the discharge port 19 as the outlet has been described. The present invention is not limited to this, and the cleaning gas generating device of the present invention may be configured by an electrolyzing unit, a storage space, an outside air inlet, and an outlet according to various other configurations.

The present invention can be applied to engine cleaning of, for example, automobiles and boilers.

1: Engine cleaning system 2: Cleaning gas generation device 3: Power supply 4: Power unit 5: Engine 6: Power unit 7: Exhaust unit 11: Body unit 12: Lid unit 13: Anode electrode 14: Cathode electrode 15: Electrolyte supply Part 16: Power supply connection part 17: Outside air intake port 18: Drain 19: Discharge port 21: Filling region 22: Gas region

Claims

In a power unit having an engine, a cleaning gas generating device for supplying a cleaning gas containing a decomposition gas generated by electrolyzing an aqueous electrolyte solution in which an electrolyte is dissolved is connected to an intake port of the engine,
In an idling state where the engine is operated by disconnecting the power unit connected to the engine, a cleaning gas is supplied to the engine over a processing time,
The cleaning gas generation device includes:
An engine cleaning method, comprising an outside air inlet, and supplying a required amount of decomposition gas and air as the cleaning gas to the engine in accordance with suction from the engine.
The engine cleaning method includes:
4. The engine cleaning method according to claim 1, wherein the engine cleaning method is performed over the processing time of displacement [cc] × (0.1 to 1.0) seconds.
The engine cleaning method according to claim 1, wherein the cleaning gas generation device is a device different from the power device.
The cleaning gas generation device includes:
The engine cleaning method according to claim 1, wherein a power source via an outlet or a mobile battery device is used as a power source.
For the electrolyte aqueous solution,
The engine cleaning method according to any one of claims 1 to 4, wherein a current of 5.0A to 30A is passed.
The engine cleaning method includes:
The engine cleaning method according to any one of claims 1 to 5, wherein the engine cleaning method is carried out for 1 minute or longer.
The cracked gas is
The engine cleaning method according to any one of claims 1 to 6, wherein a gas having metal corrosivity is not contained.
The electrolyte is
The engine cleaning method according to any one of claims 1 to 7, comprising any one of potassium hydroxide, sodium carbonate, potassium carbonate, sodium sulfate, and sodium hydrogen carbonate.
In a power unit having an engine, a cleaning gas generating device that supplies a cleaning gas containing at least hydrogen and a necessary amount of air according to suction from the engine is connected to an intake port of the engine,
The engine cleaning method, wherein the cleaning gas is supplied to the engine over a processing time in an idling state in which the connection to the power unit connected to the engine is disconnected to operate the engine.