JPH01285650A - Method and device for using fuel in diesel engine - Google Patents

Abstract

PURPOSE: To use methanol to improve combustion of light oil by using an intake force of an air hose connected to an intake manifold of a diesel engine to introduce methanol and mixing the methanol with light oil for combustion. CONSTITUTION: An electron pump 2 is energized along with the rolling of wheels of a vehicle loaded with a diesel engine. Then, the electron pump 2 is actuated to supply methanol stored in a fuel tank 1 to a controller 3. Further, supply quantity is control to a constant value by the controller 3, and the filtered and purified methanol is heated by a heating bulb 4 and then introduced into an air hose 11 through a control pipe 9. Thereafter, methanol is mixed with light oil introduced via another path in the air hose 11, and this mixed fuel is supplied to a combustion chamber of the diesel engine for combustion. As a consequence, the combustion of light oil is improved by using methanol.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is capable of increasing the combustion rate, preventing pollution, and reducing fuel costs by mixing and burning methanol and light oil in an appropriate ratio. This article relates to a method of using fuel in a diesel engine and its equipment.

[Prior art and problems to be solved by the invention] Light oil has been mainly used as fuel for conventional diesel engines. However, since the combustion rate of light oil is low, the fuel consumption rate is high and incomplete combustion occurs. As a result, there were drawbacks such as a large amount of soot and smoke, a high compression ratio, and increased engine vibration and noise.

[Means and effects for solving the problems] In order to solve these various problems, the present invention has the following features:
It burns methanol, which is relatively inexpensive and has a high combustion rate, mixed with diesel oil in an appropriate ratio. It accelerates the combustion of diesel oil, reduces soot, noise, and engine vibration, and saves fuel costs. This is what I did.

Light oil and methanol cannot be mixed directly.

If both are used in combination, a separate device is required.

In other words, it is not possible to directly introduce methanol into a diesel oil tank or connect the methanol supply pipe directly to the diesel oil supply pipe, so methanol is mixed with diesel oil while being sucked into the combustion chamber of the diesel engine. We have to make it possible.

In order to suck methanol into the combustion chamber, a method can be considered in which a separate hole is opened in the combustion chamber and a methanol supply pipe is connected to this hole. However, this requires a fundamental change in the design of the engine, and there is a problem that it cannot be added to existing engines.

Another possibility is to supply methanol by connecting a methanol supply pipe to the side of the nozzle that injects diesel oil, but due to the strong injection pressure of diesel oil, methanol cannot flow into the nozzle, and conversely, diesel oil is supplied with methanol. As it flows back into the pipe,
This method cannot be adopted.

As a result of various studies, the inventor of the present invention found that there is no problem due to the suction force of the air hose connected to the suction manifold.

When mixing light oil and methanol, if the mixing ratio of methanol is large, the combustion rate will also be large, and the generation of causes of pollution such as soot, vibration, and noise will be reduced. However, the engine output will be reduced. Conversely, as the mixing ratio of light oil increases, the combustion rate decreases accordingly, and the effect of using a mixture of the two also decreases.

According to the research of the present inventor, light oil and methanol are
When mixing at a volume ratio of 12:1, the engine output is maximized, and pollution such as soot and noise can be effectively reduced. However, such a mixing ratio is not necessarily an absolute condition in implementing the present invention. That is, even if the ratio of methanol or the ratio of light oil increases to some extent, the intended effects of the present invention will only be slightly reduced, but it will not become impossible to carry out the invention.

Even if light oil and methanol are mixed and combusted at the above-mentioned appropriate mixing ratio and by the above-mentioned device, the engine output may become weak or the engine may not start properly. This is because the temperature of methanol is lower than that of diesel oil, so the cooled methanol actually interferes with the combustion of diesel oil. Such a decrease is not much of a problem in the summer when the temperature is high, but especially in the cold winter when the methanol is not properly heated and supplied, the combustion of light oil will be hindered and it will have the opposite effect. Therefore, in the present invention, it is preferable that methanol is always heated to about 60° C. before being supplied.

Finally, preferred embodiments of the present invention will be listed, but the scope of the present invention is not limited thereto.

1. A method of using fuel in a diesel engine characterized by mixed combustion of light oil and methanol.

2. A fuel tank 1, an electronic pump 2, a regulator 3, and a heating valve 4 are connected in this order, and a hose 8 connected to the heating valve 4 is connected to an air hose 11 for mixed combustion of light oil and methanol. A fuel usage device in a diesel engine, characterized in that:

3. The device according to item 2, wherein in the electronic pump 2, the cap 19 is fixed by a rubber gasket 20 and a rubber ring 21.

4. The above-mentioned regulator 3 is installed at the bottom of the isolation chamber 32 to control the oil amount.
34 is screwed to form a precipitation chamber 35 into which the filter net 3B is fitted, and! ! 3. The device according to claim 2, characterized in that 37 is screwed onto the device.

5. The heating valve 4 has a heating port 41 having a spring 44 and an opening/closing port 43 fixed on a body 4o having an inflow hole 38 and an outflow hole 39, and a solenoid 45 on the outer surface of the heating port 41. The device i! according to item 2, characterized in that the device i! .

[Example] A methanol tank 1, an electronic pump 2, a regulator 3, and a heating valve 4 are arranged at appropriate positions on the wheels of a diesel engine, and these are heated to $ -X 5,6.7. lI
Concatenate in order by A regulating tube 9 is connected to the end of the hose 8. The regulating pipe 9 is connected to an air hose 11 connected to the intake manifold IO.

In the electronic pump 2, a methanol inflow pipe I4 and a methanol outflow pipe 15 are installed on both sides of the bobbin 13 around which the coil 12 is wound.
is screwed on. Inside the bobbin I3 is a vibrator 18.
is installed inside. This vibrator 18 is elastically supported by a spring 1B, and an on-off valve 17 is loosely provided inside. A cap 19 is provided inside the inflow pipe 14 . This cap 19 is fixed by a rubber gasket 20 and a rubber ring 2. The opening/closing plate 22 is brought into elastic contact with a gasket 24 at the entrance of the inflow pipe 14 by a spring 23.

The adjuster 3 has a protruding rod 2B protruding from the lower surface of the lid 25, and a float 27 is pivotally mounted on the protruding rod 2B. The float 27 moves up and down depending on the amount of methanol in the regulator 3.

A needle valve 29 is provided at the methanol inlet 28 , and the lower end of the opening/closing rod 30 of the valve 29 is in contact with the support rod 31 of the float 27 . Therefore, the opening/closing rod 30 moves up and down as the support rod 31 moves up and down.

An isolation chamber 32 is formed on one side of the regulator 3 . An oil amount control port 34 having a needle hole 33 is held at the connection portion of the isolation chamber 32 . This constitutes the precipitation chamber 35. A filter net 3B is fitted in the precipitation chamber 35, and a packing 37 is held in the lower part of the filter net 3B.

The heating valve 4 is constructed as follows.

That is, a heating port 41 is fixed by a bolt 42 onto the body 4o having the outflow hole 39. Heating port 4I
An opening/closing opening 43 is freely provided inside. The opening/closing port 43 closes the inflow hole 38 by the elasticity of the spring 44. A solenoid 45 is pressed onto the outside of the heating port 41, and a lid 4B is fixed thereto.

The regulating tube 9 has a small hole 47 inside, one end of which passes through the air hose and is fixed by a band 48.

In addition, 49.50 is a connecting pipe for inflow, 51.52 is a connecting pipe for outflow, 53 is a through window, 54 is a through hole, and 55 is a groove.

The effects of the above embodiments are as follows.

When the wheels are started, the electronic pump 2 is energized. This activates the electronic pump 2 and sends methanol from the tank 1 to the regulator 3. In the regulator 3,
Methanol is regulated to maintain a constant feed rate and is also filtered and purified. In this way, the methanol is transferred to the heating valve 4 where it is suitably heated.

The methanol is then sucked into the air hose 11 through the hose 8 and the regulating tube 9. And air hose 11
It is mixed with light oil inhaled through other existing channels, and then compressed and combusted to explode.

At this time, methanol, which has a high combustion rate, promotes the combustion of light oil. This increases the combustion rate of light oil, significantly eliminates pollution such as soot, vibration, and noise that is characteristic of diesel engines, reduces combustion costs, and increases engine output.

The mixing ratio of light oil and methanol is oil 1is of regulator 3.
The size of the needle hole 33 formed in the iat port 34,
It is determined by the size of the small hole 47 formed in the mrrJ tube 9. Therefore, when changing the mixing ratio of methanol, the oil amount control port 34 and the adjustment tube 9 can be replaced, and the sizes of the needle hole 33 and the small hole 47 can be changed.

If light oil is mixed at a ratio of 10 to 12 parts methanol to 1 part methanol, the effects of eliminating pollution and saving fuel costs will be even higher.

Next, the effects of the electronic pump 2, regulator 3, heating valve 4, and regulating tube 9 will be explained in detail.

In the electronic pump 2, the current applied to the coil 12 is controlled at regular intervals by the action of a normal control circuit. As a result, the vibrator IB vibrates and a pumping action is achieved.

The above is the same as before.

However, in the conventional electronic pump, the cap 19 has no separate fixing means and is simply supported by the spring 1B. Therefore, the cap 19 moves loosely due to the vibration of the vibrator 18, and the opening/closing plate 22 does not come into complete contact with the gasket 24. As a result, methanol flows backward to some extent during pumping, resulting in a reduction in pumping efficiency. In contrast, in the present invention, the cap 19 is fixed by the rubber gasket 20 and the rubber ring 21 to prevent the cap 19 from shifting. Therefore, the opening/closing plate 2
2 are in close contact and there is no methanol backflow phenomenon during pumping, so the pumping efficiency is high.

In the regulator 3, the float 27 moves up and down depending on the amount of methanol flowing into the regulator via the inflow hole 28. Thereby, the opening/closing rod 30 of the needle valve 29 appropriately opens and closes the inflow hole 29''.

Therefore, a constant amount of methanol is always maintained inside the regulator 3. Methanol flows into the precipitation chamber 35, and at this time is filtered by the filter net 3B. Furthermore, the filter net 3
After passing through B, fine particle impurities are precipitated in a precipitation chamber.

This further purifies methanol. Then, the methanol is controlled to have a constant flow rate by the needle hole 33 of the oil amount control port 34, and reaches the heating valve, where it is heated to about 60°C and is connected to the hose 8 and the regulating pipe 9. pass.

When the start is stopped, the electromagnetic force of the solenoid 45 disappears, and the opening/closing port 43 is lowered by the spring 44 to close the inflow hole and stop the inflow of methanol.

The adjustment pipe 9 is connected to the oil amount control port 3 at the time of starting the engine.
Similarly to 4, the inflow amount of methanol is controlled to be constant. When the engine is stopped, the heating valve 4
If the cooled methanol remaining in the hose B between the air hose 11 and the air hose 11 is sucked into the cylinder at the same time as the engine starts, it will interfere with the engine starting.
Even if the suction force of the oil differs, only a certain amount of oil flows in by controlling the needle hole 33, and the inflow amount can be easily adjusted by replacing the oil amount control port 34.

In the heating valve 4, when the solenoid 45 is energized, the opening/closing hole 43 that has closed the inflow hole 38 is raised by electromagnetic force, and the inflow hole 38 is opened.

As a result, the methanol that has flowed into the inflow hole 38 is sent out to the second outflow hole 39. At this time, the heat of the solenoid 45 generated by the energization heats the heating hole 41 and the body 40. Until the inside of the hose 8 of the heating valve 4 is filled with methanol again, a shortage of methanol supply will occur. This phenomenon is prevented by gradually inhaling the fluid through the holes 47.

[Effects] In the method of the present invention, light oil and methanol are mixed and burned, so the combustion of light oil is promoted and soot, noise, and
It reduces engine vibration and saves fuel costs.

Furthermore, in the apparatus of the present invention, methanol is caused to flow into the air hose, and the suction force of the air hose causes the methanol to be mixed with air and inhaled, so that the amount of suction is constant and there are no various problems.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the entire device of the present invention, FIG. 2 is a sectional view of the electronic pump of the present invention, FIG. 3 is a sectional view of the regulator of the present invention, and FIG. 4 is a sectional view of the electronic pump of the present invention. FIG. 5, which is a sectional view of the heating valve of the invention, is a perspective view showing the regulating tube of the invention connected to an air hose. [Explanation of symbols] 1... Fuel tank 2... Electronic pump 3... Regulator 4... Heating valve 8... Hose 11 ... Air hose figure 5 procedural amendment. Kichi) Commissioner of the Japan Patent Office Yoshi 1) Takeshi Moon 1, Indication of the case Patent Application No. 107255 of 1988 2, Title of the invention Method of using fuel in a diesel engine and its device 3, Relationship with the amended person case Patent applicant's Japanese language: Republic of Korea (shipped on July 26, 1983) 6. Subject of amendment: Document certifying power of attorney, applicant's column in application form, 7. Contents of amendment: Power of attorney, applicant's address as attached. and a correction application with the name correctly written as written in the power of attorney, and cleaning of the drawings.
F (no change in content). 8. List of attachments *m (1) Power of attorney 1 copy (2) Correction application 1 copy <3) Drawings 1 copy (4) Statement of reasons 1 copy

Claims (2)

[Claims] 1. A method of using fuel in a diesel engine characterized by mixed combustion of light oil and methanol. 2. A fuel tank 1, an electronic pump 2, a regulator 3,
A device for using fuel in a diesel engine, characterized in that a heating valve 4 is connected in sequence, and a hose 8 connected to the heating valve 4 is connected to an air hose 11 to mix and burn light oil and methanol.