KR100891018B1 - Air control damper for internal combustion engine - Google Patents

Abstract

An air control damper for internal combustion engine is provided to improve combustion efficiency, to control the air intake amount of igniter conveniently, and to make the exhaustion of toxic gas smooth. An air control damper for internal combustion engine comprises a housing(100) in which an intake hole(110) is formed on the top and an opening(120) is formed on the bottom, an intake fan(200) pivotally combined inside the housing, and a rotary plate(300) in which an intake control hole(310) corresponding to the intake hole is formed and which is selectively rotated on the upper side of the housing and controls the size of the intake hole with a intake control hole, and a joint member(400) detachably combined in the opening of the housing, including a pipe line in which the air inhaled to the inside of the housing is delivered to the inside of a burner.

Description

Air control damper for internal combustion engine

The present invention relates to an air regulating damper for an internal combustion engine, and more particularly, to an air regulating damper for an internal combustion engine to adjust the amount of air sucked into the ignition device to increase combustion efficiency and discharge harmful gas.

An internal combustion engine is an engine that obtains energy by burning an oxidant such as fuel and air in a combustion chamber, and generically refers to a vehicle, a ship, a boiler, and the like.

Among them, domestic boilers are used to heat indoor spaces in the low temperature seasons such as winter, early spring or late autumn.

The boiler heats the indoor space while the heat medium such as hot water or steam generated by heating the water or the heat medium in the sealed container using the heat of combustion or another heat source is circulated to the heating line.

That is, the boiler inhales outside air using a blower, supplies it to the combustion chamber, and supplies fuel such as oil or gas to the combustion chamber to ignite the fuel using a burner installed in the combustion chamber.

Accordingly, the water is heated in the boiler body using the heat of combustion of the fuel supplied to the fuel chamber so that hot water can be used.

Hereinafter, with reference to the accompanying Figure 1 will be described briefly with respect to the conventional boiler.

As shown in FIG. 1, an air suction device 20 and a burner 30 that is an ignition device are installed in the case 10.

The air suction device 20 sucks air and supplies it to the burner 30, and a housing 21 having an air suction pipe 21 a and an air discharge pipe (not shown) and a motor fan installed inside the housing 21. (Not shown).

This motor fan is installed to be rotated by a separate motor.

The burner 30 is a place where thermal power is generated, and air and fuel are supplied together.

At this time, air is supplied from the air suction device 20, and fuel such as oil or gas is supplied from a fuel injection nozzle 40 separately installed.

That is, when power is applied to the boiler, the motor fan is rotated by the generation of power of the motor, and the outside air is sucked into the air suction device 20 through the air suction pipe 21a by the rotational force of the motor fan, It is supplied to the burner 30 through a discharge tube.

In addition, fuel is supplied from the fuel injection nozzle 40 to the inside of the burner 30, that is, the combustion chamber, and mixed with air.

Thereafter, the fuel is ignited by separately installed ignition means.

Thereafter, the ignited fuel generates thermal power to heat the heating water stored in the tank 50, and the heating water is circulated by a separate circulation pump (not shown) to supply heating and hot water in the home.

  At this time, soot is generated as the fuel is combusted, and the soot is discharged to the outside through the gas discharge pipe 60.

However, the above conventional boilers have the following problems.

First, since the intake amount of the air supplied to the burner 30 could not be selectively adjusted, there was a problem that the combustion efficiency is lowered.

In detail, the boiler provided initially is uniformly set by the expert in the amount of intake of air through the air intake device 30 by the expert.

At this time, it is preferable that the boiler should adjust the suction amount of the air or clean the dust accumulated in the air suction pipe 21a according to the age of the equipment and various environments.

However, it is true that the general users have not been able to properly manage the boiler as described above because of lack of economic cost or expertise for disassembling and assembling the boiler.

That is, because the boiler is not properly managed, the combustion efficiency is lowered and the energy consumption is increased, thereby reducing the economic efficiency.

Second, due to the above reasons, the older the boiler is, the more the combustion occurs incompletely, the more harmful gas is generated.

Such harmful gases have to be discharged out of the house because it is harmful to the human body, the amount of harmful gases is generated too much to be discharged smoothly and accumulated inside the boiler.

The present invention has been made to solve the above problems, the object of the present invention is to be able to easily adjust the amount of air intake into the ignition device, to increase the combustion efficiency, and to smoothly discharge the harmful gas. One aim is to provide an air conditioning damper for an internal combustion engine.

To this end, in the internal combustion engine comprising an air intake device including an air intake pipe, and an ignition device in which air and fuel sucked through the air intake device are mixed and ignited to generate heat. An air conditioning damper for adjusting the boiler is further installed, The boiler air conditioning damper, the upper surface is formed with a suction hole, the lower surface of the housing is formed with an opening; the shaft is coupled to the inside of the housing freely rotated intake fan; A suction plate is formed corresponding to the rotating plate to selectively rotate on the upper surface of the housing to allow the suction control hole to adjust the size of the suction hole to adjust the air intake; And a coupling member detachably coupled to the opening of the housing, the coupling member including a conduit through which air sucked into the housing flows into the burner.

At this time, the suction hole and the suction control hole is preferably an arc (arc) type of long hole.

At this time, the length of the suction hole, is formed in the circumferential direction more than half of the upper surface of the housing, the size of the suction control hole is preferably corresponding to the suction hole.

In addition, the suction hole is formed of a plurality of through-holes arranged at equal intervals in the circumferential direction around the axis, the suction control hole may be formed in the same hole as the size of the suction hole.

In addition, the rotating plate includes a rotating hole having a larger inner diameter than the outer diameter of the shaft, the outer circumferential surface of the shaft is exposed to the outside through the rotating hole in the state of the screw, the shaft is fastened to the nut restraining the rotation of the rotating plate It is preferable.

The coupling member may include: a fitting portion having an outer diameter corresponding to an inner circumferential surface of the housing; a circumferential portion formed at a lower end of the fitting portion, and having a larger outer diameter than an outer diameter of the housing; It is preferred that the insertion portion having an outer diameter to be inserted into :.

At this time, one or more auxiliary coupling members corresponding to the air suction pipes of various sizes are coupled to the coupling member, and the auxiliary coupling member is formed with a fitting groove into which the insertion part is fitted, and the other coupling member can be fitted below. It is preferable that the auxiliary fitting part is formed.

At this time, it is preferable that the silicon packing is further interposed between the insertion portion and the fitting groove.

According to the air control damper for an internal combustion engine according to a preferred embodiment of the present invention has the following effects.

First, even if the skilled worker, it is possible to easily adjust the air intake amount to the burner.

Accordingly, the combustion efficiency is increased, the energy efficiency is also improved.

Furthermore, as the life of the boiler becomes longer, there is an effect of increasing economic efficiency.

Second, it is possible to smoothly discharge the harmful gas inside the boiler by adjusting the pressure of the intake air.

Accordingly, it is possible to prevent an unpleasant odor caused by harmful gases, and to prevent harm to the human body, thereby increasing user satisfaction.

1 is a cross-sectional view showing a conventional boiler

Figure 2 is an exploded perspective view showing an air control damper for an internal combustion engine according to a preferred embodiment of the present invention

3 is a cross-sectional view showing an air control damper for an internal combustion engine according to a preferred embodiment of the present invention.

Figure 4 is a cross-sectional view showing a state in which the air conditioning damper for the internal combustion engine according to a preferred embodiment of the present invention coupled to the air intake pipe of the boiler

5a to 5c are plan views showing a state in which the air intake amount to the air control damper for the internal combustion engine according to a preferred embodiment of the present invention is adjusted

Figure 6 is an exploded perspective view showing an air conditioning damper for an internal combustion engine according to another embodiment of the present invention

7 is a cross-sectional view showing an air control damper for an internal combustion engine according to another embodiment of the present invention.

8a and 8b is a plan view showing a suction hole and the suction control hole of the air control damper for an internal combustion engine according to another embodiment of the present invention.

* Description of Major Symbols in Drawings *

20: air intake device 21: housing

21a: air suction pipe 30: burner

100 housing 110 suction hole

120: opening 130: shaft hole

200: intake fan 210: wing

220: axis 300: rotating plate

310: suction control hole 320: rotating ball

400: coupling member 410: fitting

420: circumference 430: insertion

500: silicon member 600: auxiliary coupling member

610: fitting groove 620: auxiliary fitting

Hereinafter, an air control damper for an internal combustion engine according to a preferred embodiment of the present invention will be described with reference to FIGS. 2 to 5.

Prior to the description, the same components as in the prior art will be denoted by the reference numeral.

The air regulating damper for the internal combustion engine includes a housing 100, an intake fan 200, a rotating plate 300, and a coupling member 400.

The housing 100 forms an inner space for installing a passage through which air is sucked and the intake fan 200, and is formed in a cylindrical shape so as to correspond to the air suction pipe 21a (FIG. 1).

The suction hole 110 is formed on the upper surface of the housing 100, and the opening 120 is formed on the bottom of the housing 100 so that the inner space of the housing 100 can communicate with the outside.

At this time, the suction hole 110 is preferably made of an arc (arc) form.

This is because the size of the suction hole 110 is adjusted by the rotation of the rotating plate 300 to be described later, in order to efficiently do this.

At this time, the length of the suction hole 110 is preferably a long hole formed in about half or more on the upper surface of the housing (100).

This is to prevent the suction hole 110 is completely closed. Detailed description will be described later.

At this time, the shape of the suction hole 110 is not limited to the arc shape.

In addition, the shaft hole 130 is formed at the center of the upper surface of the housing 100.

The shaft hole 130 is a place for the shaft of the intake fan 200 is installed, the end of the shaft through the shaft hole 130 is exposed to the outside.

Next, the intake fan 200 is rotated by the air is sucked while the motor fan is rotated.

That is, the intake fan 200 is not rotated by an artificial power such as a motor, but is freely rotated about an axis and disposed in the inner space of the housing 100.

In this case, the intake fan 200 includes a plurality of wings 210 and a shaft 220.

The outer circumferential surface of the shaft 220 is formed of a screw, a plurality of wings 210 are installed at the lower end thereof.

In this case, the plurality of wings 210 are not rotated by the rotation of the shaft 220, but are coupled together by a bearing (not shown) on the shaft 220 to be freely rotated about the shaft 220. .

Next, the rotating plate 300 adjusts the suction amount of the air sucked into the interior space of the housing 100, is installed in a superimposed state on the upper surface of the housing 100.

The rotating plate 300 is formed in a circular shape corresponding to the housing 100 and is formed to cover the upper surface of the housing 100.

At this time, the rotating plate 300 is formed with a suction adjusting hole 310 corresponding to the suction hole 110 of the housing 100, and a rotating hole 320 for smooth rotation of the rotating plate 300.

The suction control hole 310 is formed in the same arc shape as the suction hole (110).

And, the rotation hole 320 is fitted to the end of the shaft 220 exposed through the shaft hole 130, a size that has a slightly loose feeling, that is, the diameter of the rotation hole 320 compared to the diameter of the shaft 220 It is preferable to form large.

This is to smooth the rotation of the rotating plate (300).

Next, the coupling member 400 is selectively coupled to the air suction pipe 21a of the boiler air suction device 20 and detachably fitted to the opening 120 of the housing 100.

At this time, the coupling member 400 is formed in a circular shape, the fitting portion 410 having a size enough to be fitted into the opening 120 of the housing 100 and formed at the bottom of the fitting portion 410 And the coupling member 400 is fitted to the air suction pipe 21a of the boiler air suction device 20 and the circumferential portion 420 formed as a step so that the coupling member 400 is not excessively fitted toward the opening 120 of the housing 100. It includes an insertion portion 430 having an outer diameter as much as possible.

At this time, the center of the coupling member 400 is formed through the central through-hole, the air sucked into the inner space of the housing 100 to the air intake pipe 21a of the air intake device 20 through the central through-hole. Make it work.

On the other hand, the outer peripheral surface of the insertion portion 430 is preferably provided with a silicon packing 500 for sealing with the air suction pipe (21a).

Hereinafter, look at the coupling and action for the air control damper for the internal combustion engine made of the above configuration.

The intake fan 200 is coupled to the internal space of the housing 100.

At this time, a portion of the upper end of the shaft 220 is exposed to the outside through the shaft hole 130 of the housing 100.

The intake fan 200 coupled as described above is freely rotated about the shaft 220.

Next, the rotating plate 300 is coupled to the upper surface of the housing 100.

At this time, the rotary hole 320 of the rotating plate 300 passes through a portion of the upper end of the shaft 220, the suction control hole 310 corresponds to the suction hole (110).

Thereafter, the nut N is fastened to a part of the upper end of the shaft 220 to constrain the rotating plate 300.

Next, the coupling member 400 is coupled to the opening 120 of the housing 100.

At this time, the fitting portion 410 of the coupling member 400 is fitted into the opening 120 of the housing 100.

As a result, as shown in FIG. 3, the coupling of the air control damper for the internal combustion engine is completed, and the coupling of the air control damper for the internal combustion engine is completed, as shown in FIG. 4, to the air suction pipe 21a of the air intake device 20. Let's do it.

As described above, after the air control damper for the internal combustion engine is coupled to the air intake pipe 21a of the air intake device 20, the air intake into the burner 30 is determined by determining various conditions such as the service life of the boiler and the installation environment. Adjust.

To this end, after loosening the nut (N) fastened to the upper portion of the shaft 220 to free the rotation of the rotating plate 300, by rotating the rotating plate 300, the suction control hole 310 for the suction hole 110 Adjust the position of.

Then, tighten the nut (N) to restrain the rotation of the rotating plate (300) again.

That is, as shown in Figure 5a, by matching the position of the suction hole 110 and the suction control hole 310 may maximize the air suction amount, as shown in Figures 5b and 5c suction hole 110 By adjusting only a part of the position and the suction control hole 310 can adjust the air intake amount.

Thereafter, while the motor fan installed inside the air suction device 20 is rotated, external air is sucked through the suction hole 110.

At this time, the wing 210 of the intake fan 220 is also rotated to suck the outside air.

At this time, it is understood that the pressure of the air sucked into the housing 100 through the suction hole 110 is increased.

Thereafter, the sucked air is introduced into the burner 30, mixed with fuel supplied through the fuel injection nozzle 40, and then ignited to generate thermal power.

Thereafter, the hot water heated by the burner 30 is circulated along the pipe by the circulation pump to provide heating and hot water.

As described above, the air control damper for the internal combustion engine is different from the conventional art in which external air is uniformly sucked through the air suction pipe 21a due to the action of the motor fan installed inside the burner 30. By adjusting the size of the suction hole 110 is to be characterized in that the air intake can be adjusted.

As the air intake can be adjusted in this way, the combustion efficiency can be improved by adjusting the intake amount of the air sucked into the burner 30 according to various conditions such as the use period of the boiler and the installation environment to enable complete combustion. .

As a result of the applicant's experiment, it was possible to save about 15% of the oil consumption in the case of the new boiler, and about 50% of the oil consumption in the case of the 10-year boiler.

In addition, the harmful gas that is not completely discharged to the outside of the boiler is accumulated inside the aged boiler. As the pressure of the air sucked through the air conditioning damper for the boiler increases, Can be discharged.

Meanwhile, the inner diameter of the air suction pipe 21a formed in the air suction device 20 may be different for each manufacturer, and the auxiliary coupling member 600 may be further provided to correspond to the inner diameter of the air suction pipe 21a. have.

As shown in FIG. 6, the auxiliary coupling member has a fitting groove 610 for inserting the insertion portion 430 of the coupling member 400, and an air suction pipe 21a below the fitting groove 610. Auxiliary fitting portion 620 is formed to be fitted to).

That is, the outer diameter of the auxiliary fitting part 620 corresponds to the inner diameter of another air suction pipe.

By such a configuration, even if a plurality of coupling members (400, 600) is provided, it is not stored separately, it can be used simply by being used in a state of being integrally fitted as shown in FIG.

8A and 8B show another example of the rotating plate 300, the suction hole 110 and the suction control hole 310 may be formed of a plurality of circular through holes instead of arcs. .

That is, each of the suction hole 110 and the suction control hole 310 is formed in a circular shape, and the suction hole 110 and the suction control hole 310 is partially overlapped with the rotation of the rotating plate 300 to adjust the air suction amount. I did it.

On the other hand, in the present specification, for convenience, the air control damper for an internal combustion engine has been described as an example installed in a domestic boiler, but is not limited thereto, and may be applied to a vehicle and a ship in which the internal combustion engine is used.

Claims (8)

An internal combustion engine comprising an air intake device including an air intake pipe, and an ignition device in which air sucked through the air intake device and fuel are mixed and ignited to generate heat. An engine air damper is installed, The air control damper for the internal combustion engine, A suction hole is formed in an upper surface thereof, and a housing in which an opening is formed in a lower surface thereof; An intake fan axially coupled to the inside of the housing and freely rotating; A suction plate having a suction control hole corresponding to the suction hole, and selectively rotating on an upper surface of the housing to allow the suction control hole to adjust the size of the suction hole to adjust the air suction amount; And A coupling member detachably coupled to the opening of the housing, the coupling member including a conduit through which air sucked into the housing flows into the burner. The method of claim 1, The suction hole and the suction control hole is an air control damper for an internal combustion engine, characterized in that the arc (arc) long hole. The method of claim 2, The suction hole has a length of at least half of the upper surface of the housing in the circumferential direction, and the size of the suction control hole corresponds to the suction hole. The method of claim 1, The suction hole is formed of a plurality of through-holes arranged at equal intervals in the circumferential direction about the axis, The suction control hole is an air control damper for an internal combustion engine, characterized in that formed in the same hole as the size of the suction hole. The method according to any one of claims 1 to 4, The rotating plate includes a rotating hole having a larger inner diameter than the outer diameter of the shaft, The outer circumferential surface of the shaft is exposed to the outside through the rotating hole in the state of the screw, Air shaft damper for an internal combustion engine, characterized in that the shaft is fastened to the nut to restrict the rotation of the rotating plate. The method according to any one of claims 1 to 4, The coupling member, A fitting portion having an outer diameter corresponding to an inner circumferential surface of the opening of the housing; A circumferential portion formed at a lower end of the fitting portion and having a larger outer diameter than an outer diameter of the housing; It is formed on the lower end of the circumference, the insertion portion having an outer diameter that is inserted into the air suction pipe: air conditioning damper for an internal combustion engine comprising a. The method of claim 6, One or more auxiliary coupling members corresponding to the air suction pipes of various sizes are coupled to the coupling member. Auxiliary coupling member, The insertion groove is inserted into the insertion groove is formed, the lower air-conditioning damper for the internal combustion engine, characterized in that the auxiliary fitting portion is formed so that the other coupling member can be fitted. The method of claim 7, wherein Air control damper for an internal combustion engine, characterized in that the silicon packing is further interposed between the insertion portion and the fitting groove.