JPH11141404A - Water supply device for reducing environmental pollution for internal combustion engine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To lower exhaust gas temperature and to reduce environmental pollution by supplying air to the cylinder of an internal combustion engine, supplying air and humidified air to an intake pipe, and also supplying a high temperature/ high pressure water to the inside of the cylinder of the internal combustion engine. SOLUTION: This environmental pollution reducing device supplies humidified air from a water supply unit 8 incorpolated with an ultrasonic steam generator 6 to an intake pipe 7 through a choke valve 4, and when the inside of the cylinder of an internal combustion engine is in an intake stroke, supplies air and increased humidity to the inside of the cylinder. A high pressure/high temperature water may be supplied directly from a high temperature/high pressure tank to the inside of the cylinder of the internal combustion engine by a high pressure/high temperature supply device.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention utilizes inexpensive water to reduce pollution caused by an internal combustion engine, which is useful for reducing pollution.

[0002]

2. Description of the Related Art There are devices for stirring, emulsifying and supplying heavy oil and water in an intake process of an internal combustion engine, but they are large and expensive.

[0003]

Since the exhaust gas from the internal combustion engine has a high temperature, nitrogen oxides are discharged as they are. However, if there is moisture, the temperature drops rapidly due to the heat of vaporization and the nitrogen oxides are discharged. When water droplets are reduced and water droplets are formed, particulate matter contained in black smoke becomes nucleus due to the necessity of a core material, turns into water droplets and turns into water, which can be filtered to remove dirt

[0004]

Means for Solving the Problems An ultrasonic steam generator is provided before or after a vaporizer in an intake pipe, and a required amount of water is supplied by using the intake air in the intake process. The gist is to supply high-temperature and high-pressure moisture directly to the cylinder.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS By supplying air of increased humidity or high-temperature and high-pressure moisture to a cylinder of an internal combustion engine to an intake process, a high-temperature exhaust gas discharged from an exhaust pipe of the internal combustion engine is subjected to moisture. The effect of the heat of vaporization causes the temperature to drop rapidly, including nitrogen oxides and water droplets, including black smoke.
Particulate matter reduction is performed.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, steam generated by an ultrasonic steam generator 6 is supplied to an intake pipe 7 by adjusting the amount of air whose humidity is increased by a choke valve B4 in a water supply device 8. In the intake process of the internal combustion engine, which supplies the air with increased humidity, the air passes through the intake pipe 7 and supplies the air with the increased humidity and the air to the cylinder of the internal combustion engine to supply necessary moisture.

FIG. 2 shows a moisture supply unit mounted after the vaporizer.

In FIG. 3, the water heated by the pump 7 from the water tank to the pipe 15 in which the cylinder 10 is disposed is stored in the high-pressure high-temperature tank 9.

High pressure / high temperature supply device 1 from high pressure / high temperature tank 9
The adjusted amount of water is supplied into the cylinder 10 by the step 8.

It is necessary to adjust the supply amount of water so as not to hinder the explosion of the fuel.

An accelerator can be used to change the supply amount of water and the supply amount of fuel in conjunction with each other.

[0012] The amount of water in the cylinder needs to be an amount that does not prevent explosion due to oxidation of the fuel.

If water remains in the cylinder, it will cause rust. Therefore, the countermeasure is to stop the ultrasonic steam generator when the accelerator is not depressed, when the side brake is applied, and when the gearbox is NEUTRO. It is necessary to stop the supply of water and remove the water before stopping.

[0014]

According to the present invention, it is generally known that when moisture is supplied into an engine, polluting substances such as nitrogen oxides in exhaust gas are reduced. Although the conventional apparatus for supplying water is expensive and large, FIG. 1 and FIG.
Can be easily attached to an internal combustion engine currently in use. FIG. 3 is used for a newly produced internal combustion engine in the future.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional side view in which an ultrasonic steam generator according to the present invention is arranged in front of a vaporizer.

FIG. 2 is a partial cross-sectional side view in which the ultrasonic steam generator of the present invention is disposed after a vaporizer.

FIG. 3 is a partial sectional side view of the present invention for supplying high pressure and high temperature directly into a cylinder.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vaporizer 2 Choke valve A 3 Air port 4 Choke valve B 5 Air port B 6 Ultrasonic steam generator 7 Intake pipe 8 Water supply device 9 High-pressure high-temperature water tank 10 Cylinder 11 Piston plunger 12 Discharge valve 13 Intake valve 14 Fuel Tank 15 High-pressure pipe 16 High-pressure pump 17 Water tamper 18 High-pressure high-temperature water supply device 19 Direct injection fuel supply device

Claims (1)

[Claims] An apparatus for increasing the humidity of air supplied into a cylinder of an internal combustion engine, increasing the humidity in the cylinder, and reducing pollution.