KR100662024B1 - Apparatus and manufacture method for absorption and desorption hydrocarbon for air cleaner of vehicle - Google Patents

Abstract

A hydro carbon adsorption and desorption apparatus for an air cleaner of a vehicle and a manufacturing method thereof are provided to prevent atmospheric contamination by adsorbing hydro carbon gas from blowby gas emitted through an intake system during stoppage of the vehicle and preventing activated carbon from entering an engine during travel. A hydro carbon adsorption and desorption apparatus comprises a gas adsorption medium arranged in an air cleaner(11) so as to adsorb hydro carbon gas from the blowby gas emitted from an engine during stoppage of the vehicle and desorb the adsorption hydro carbon by outdoor air and supply the hydro carbon to the engine during travel. The gas adsorption medium is mounted on an air filter of the air cleaner, and has an upper surface and a lower surface which are corrugated into folds. The gas adsorption medium has four edges which are covered with a plastic frame and sealed through insert injection process so as to prevent escape of the activated carbon.

Description

Apparatus and manufacture method for absorption and desorption hydrocarbon for air cleaner of vehicle}

1 is a perspective view showing a hydrocarbon gas adsorption and desorption apparatus mounted to a vehicle air cleaner according to the present invention.

Figure 2 is an exploded perspective view of Figure 1;

3 is a perspective view showing a hydrocarbon gas desorption apparatus according to the present invention.

4 is a cross-sectional view taken along the line “A-A” of FIG. 3.

5 is a perspective view showing another embodiment of a hydrocarbon gas desorption apparatus according to the present invention.

6 is an exploded perspective view of FIG. 5;

FIG. 7 is a cross-sectional view taken along the line “B-B” of FIG. 5.

8 is an image showing an enlarged state of the gas adsorption medium according to the present invention with an electron microscope.

9 is a schematic view showing a method of manufacturing a hydrocarbon gas adsorption / desorption apparatus mounted to an automobile air cleaner according to the present invention.

10 is a schematic view showing a manufacturing method of another embodiment of the hydrocarbon gas adsorption / desorption apparatus mounted to the vehicle air cleaner according to the present invention.

<Description of the symbols for the main parts of the drawings>

10: gas adsorption medium 10a: activated carbon

10b: nonwoven fabric 11: air cleaner

11a: upper case 11b: lower case

12 air filter 13 mold

14 press 15: frame

16: side band 17: inlet

18 outlet

The present invention relates to a hydrocarbon gas adsorption / desorption device for a vehicle air cleaner and a method for manufacturing the same, and more particularly, a gas adsorption medium is mounted on an air cleaner of a gasoline vehicle, and when the vehicle is stopped, hydrocarbon gas, which is a main component of blowby gas, is stopped. (HC) is adsorbed on the gas adsorption medium, and when running, the hydrocarbon gas adsorbed on the gas adsorption medium is desorbed by outside air and supplied to the combustion chamber, thereby actively responding to the increasingly restrictive exhaust gas regulations. The present invention relates to a hydrocarbon gas adsorption / desorption device for automobile air cleaner and a method of manufacturing the same, which can reduce the pollution of the air to promote environmental protection.

Recently, as environmental awareness increases, various environmental regulations have been strengthened. Especially, environmental pollution regulations for air pollution have been strengthened.

In response to such environmental regulations, automobiles also need to remove various pollutants contained in exhaust gas.

The above-mentioned measures for purifying automobile exhaust gas are classified into a technology that targets exhaust gas other than an exhaust pipe such as blow-by gas and fuel evaporation gas, and a technique that targets combustion gas discharged from an exhaust pipe.

The blow-by gas is a gas leaking into the crankcase through the gap between the piston and the cylinder, is a crankcase emission, and is a mixed gas partially oxidized with the remaining combustion gas.

Such blow-by gas stays in the crankcase to corrode the inside of the engine, contaminate the engine oil, and emit a large amount of harmful substances. Therefore, the blow-by gas is discharged into the atmosphere, but recently, it is sent to the intake system to be reburned.

To this end, the blow-by gas reducing device separates the gas collected from the crank case into the cylinder head cover, into the blow-by gas and the engine oil component through an oil separator installed inside the cylinder head cover, and is opened and closed by intake negative pressure. (positive crankcase ventilation) The valves, hoses and pipes are fed to the intake manifolds of the intake system, and are entered into the combustion chamber of each cylinder to be reburned with a new mixer.

However, the blow-by gas is discharged through the intake system at the stop, and in particular, the hydrocarbon gas, which is the main component of the blow-by gas, is an unburned fuel gas, which is not only harmful to the human body but also increases air pollution and is gradually strengthening exhaust gas regulation. There is a problem that can not be satisfied.

The present invention has been made in view of the above, but the gas adsorption medium is mounted on the upper part of the air filter of the vehicle air cleaner, the inner edge of the gas adsorption medium to prevent the activated carbon from exiting the adhesive or insert injection By sealing, the hydrocarbon gas (HC), which is a main component of blow-by gas discharged through the intake system, is adsorbed to the gas adsorption medium when the vehicle is stopped, and the hydrocarbon gas adsorbed to the gas adsorption medium is desorbed by outside air and supplied to the combustion chamber during driving. In addition, the present invention provides a hydrocarbon gas adsorption and desorption device for automobile air cleaner and a method of manufacturing the same, which can actively respond to the stricter exhaust gas regulations and ultimately reduce the pollution of the air to promote environmental protection. Its purpose is to.

In the present invention for achieving the above object in the hydrocarbon gas adsorption and desorption apparatus for mounting a car air cleaner equipped with an air filter therein,

When the vehicle stops, the gas adsorbent medium is installed inside the air cleaner so that the hydrocarbon gas, which is a main component of the blow-by gas generated in the engine, is adsorbed, and the adsorbed hydrocarbon gas is desorbed by outside air and supplied to the engine. do.

In a preferred embodiment, the gas adsorption medium is mounted on the air filter of the air cleaner.

In a more preferred embodiment, the gas adsorption medium is characterized in that the upper and lower surfaces are wrinkled in multiple layers.

In addition, the four edges of the gas adsorption medium is surrounded by a plastic frame is characterized by being sealed by insert injection so that the activated carbon does not escape.

In addition, each edge end of the gas adsorption medium is characterized in that the side band is bonded and sealed so that the activated carbon does not escape.

In addition, the material of the gas adsorption medium is characterized in that composed of activated carbon located inside, and a nonwoven fabric attached to the upper and lower portions of the activated carbon.

In addition, the upper and lower surfaces are bent in multiple layers to produce a gas adsorption medium comprising activated carbon therein; Cutting the bent gas adsorption medium into a predetermined size; Inserting and cutting the cut gas adsorption medium into a mold; Sealing the edges of the edges of the gas adsorption medium by injecting and then injecting a plastic solution into a mold surrounding the edges of the compressed gas adsorption medium; Extracting the injected product by inserting the gas adsorption medium; Inspecting the retrieved product; Assembling the product to an air cleaner; Is made of.

In addition, the upper and lower surfaces are bent in multiple layers to produce a gas adsorption medium comprising activated carbon therein; Cutting the bent gas adsorption medium into a predetermined size; Bonding the four edges of the cut gas adsorption medium with side bands to seal them; Inspecting the retrieved product; Assembling the product to an air cleaner; Is made of.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing a hydrocarbon gas adsorption and desorption apparatus mounted on an automobile air cleaner according to the present invention, FIG. 2 is an exploded perspective view of FIG. 1, and FIG. 3 is a hydrocarbon gas adsorption and desorption apparatus according to the present invention. 4 is a cross-sectional view taken along the line "AA" in FIG.

The present invention has a main point in that the top and bottom surfaces of the gas adsorption medium formed in multiple layers of wrinkles can be sealed by injection or bonding.

In general, a vehicle is a device in which a mixer is sucked into a cylinder and the road surface is moved by using a driving force generated by repeating the process of compression, ignition, and exhaust. The engine is an intake and exhaust device for exhausting the mixer's suction and combustion gas. Is installed.

The intake apparatus comprises an air cleaner 11, a throttle body for mixing fuel and air, a surge tank for storing the mixer, and an intake manifold for distributing the mixer into each cylinder.

The air cleaner 11 removes fine dust contained in the air sucked into the cylinder and additionally removes intake noise generated in the intake cylinder, and is installed at the front of the throttle body in the gasoline engine. .

The air cleaner 11 has an inlet 17 formed to suck external air from the vehicle in the lower case 11b, an outlet 18 formed to be connected to an intake hose in the upper case 11a, and the inlet 17 It consists of an air filter 12 mounted inside to remove dust in the air sucked through).

Hydrocarbon gas adsorption and desorption apparatus for mounting a vehicle air cleaner according to the present invention is a product of the air cleaner (11) to seal the edge of the gas adsorption medium (10) formed by multiple folds of the upper and lower surfaces by insert injection or adhesion It is mounted on the top of the air filter 12.

As shown in FIG. 8, the gas adsorption medium 10 has a structure in which a nonwoven fabric 10b is attached up and down with the activated carbon 10a interposed therebetween.

The method for producing activated carbon 10a is made by treating wood, lignite, peat, etc. with a chemical agent such as zinc chloride or phosphoric acid as an activator, and drying or activating charcoal with water vapor.

In general, activated carbon (10a) is produced in the form of powder or particles, the powder is also used to make the particles. Its use is mainly used to absorb gas or moisture as an adsorbent. In addition, it is used for various purposes such as a solvent recovery agent and a gas purification or decolorizing agent.

Referring to the manufacturing method of the hydrocarbon gas adsorption and desorption apparatus for mounting an automobile air cleaner using the gas adsorption medium (10) as follows.

9 is a schematic view showing a method of manufacturing a hydrocarbon gas adsorption / desorption apparatus mounted to an automobile air cleaner according to the present invention.

① The gas adsorption medium 10 in the form of a plate is bent so that the upper and lower surfaces are wrinkled in multiple layers.

That is, the side end surface of the bent gas adsorption medium 10 has a shape of "W" shape, and the gas adsorption medium 10 is a portion that directly adsorbs hydrocarbon gas, which is a main component of blow-by gas, and absorbs gas. The medium 10 was made radial to increase the contact surface with the blow-by gas, thereby increasing the gas adsorption rate.

② The gas adsorption medium (10) bent in the above step is cut into a trapezoidal shape of a predetermined size.

③ The gas adsorption medium 10 cut to a predetermined size in the above step is inserted between the mold 13, the inner surface of the upper and lower plates are formed in multiple layers. At this time, the mold 13 surrounds the four edges of the gas adsorption medium 10.

(4) The gas adsorption medium (10) inserted into the mold (13) is pressed with a press (14).

⑤ Inject the plastic solution into the mold 13 surrounding the edges of the gas adsorption medium. The plastic frame 15 injected in this way may seal the edge of the gas adsorption medium 10 so that the activated carbon 10a inside the gas adsorption medium 10 may not escape.

⑥ Take out the product 13, the product of which the edge of the gas adsorption medium 10 is sealed by plastic injection.

⑦ Inspect the finished product in the above step.

⑧ Install the product on top of the air cleaner (11) and the air filter (12).

Another embodiment of the method for manufacturing a hydrocarbon gas adsorption / desorption device for mounting an automobile air cleaner according to the present invention is as follows.

5 is a perspective view showing another embodiment of a hydrocarbon gas desorption apparatus according to the present invention, FIG. 6 is an exploded perspective view of FIG. 5, FIG. 7 is a sectional view taken along the line “BB” of FIG. 5, and FIG. 10. Is a schematic diagram showing a manufacturing method of another embodiment of a hydrocarbon gas adsorption / desorption apparatus mounted on an automobile air cleaner according to the present invention.

5 to 7, instead of the insert injection type, the edges of the four sides are bonded to the side bands 16 so that the activated carbon 10a of the gas adsorption medium 10 does not escape. At this time, the front and rear ends of the gas adsorption medium 10 are bent in a predetermined portion and then attached to the side band 16.

① The gas adsorption medium 10 in the form of a plate is bent so that the upper and lower surfaces are wrinkled in multiple layers.

That is, the side end surface of the bent gas adsorption medium 10 has a shape of "W" shape, and the gas adsorption medium 10 is a portion that directly adsorbs hydrocarbon gas, which is a main component of blow-by gas, and absorbs gas. The medium 10 was made radial to increase the contact surface with the blow-by gas, thereby increasing the gas adsorption rate.

② The gas adsorption medium (10) bent in the above step is cut into a trapezoidal shape of a predetermined size.

(3) By adhering and sealing the side bands 16 on the four edges of the gas adsorption medium 10 cut in the above step, it is possible to prevent the activated carbon 10a inside the gas adsorption medium 10 from escaping. At this time, the side band 16 is a nonwoven material, polyester or the like is used.

④ Inspect the finished product in the above step.

⑤ Install the product on the top of the air cleaner (11) air filter (12).

Next, the state of use of the hydrocarbon gas adsorption and desorption apparatus for mounting an automobile air cleaner according to the present invention is as follows.

The flow of blow-by gas at the stop is combustion chamber → air cleaner 11 → outside of the vehicle, and the flow of outside air at the time of running is vehicle external air → air cleaner 11 → combustion chamber.

Here, the gas adsorption medium 10 according to the present invention is mounted on the upper portion of the air cleaner 11, so that the hydrocarbon gas which is the main component of the blow-by gas introduced through the outlet 18 of the air cleaner 11 is stopped. The hydrocarbon gas adsorbed to the gas adsorption medium 10 is desorbed by the outside air introduced through the suction port 17 of the air cleaner 11 while being adsorbed to the gas adsorption medium 10. At this time, the velocity of the outside air should be sufficient to desorb the hydrocarbon gas adsorbed on the gas adsorption medium (10).

At this time, the desorbed hydrocarbon gas is discharged through the outlet 18 connected to the intake hose and supplied back to the combustion chamber of the engine, thereby utilizing the blow-by gas as the suction gas.

Accordingly, by sealing the four edges of the gas adsorption medium 10 according to the present invention by insert injection or bonding, the activated carbon 10a from the gas adsorption medium 10 is prevented from being introduced into the engine. Can be.

In addition, by adsorbing hydrocarbon gas, which is a main component of blow-by gas, which escapes to the outside of the vehicle when the vehicle is stopped, the adsorbed hydrocarbon gas is re-supplied to the engine by outside air when the vehicle is driven. Adsorption and desorption of hydrocarbon gas in the medium is repeated to actively respond to the stricter regulations on exhaust gas, while ultimately reducing the pollution of the air to promote environmental protection.

As described above, according to the hydrocarbon gas adsorption and desorption apparatus for a vehicle air cleaner according to the present invention and a method for manufacturing the same, a gas adsorption medium is mounted inside the vehicle air cleaner, but the upper and lower surfaces are formed in multiple corrugations. By sealing the edge of the adsorption medium by insert injection or adhesion, it adsorbs hydrocarbon gas, which is the main component of blow-by gas, which is discharged through the intake system of the vehicle at the time of stopping, and activated carbon of the gas adsorption medium enters the engine during driving. You can prevent it.

Claims (8)

In the hydrocarbon gas adsorption and desorption device for automobile air cleaner mounted with an air filter, When the vehicle stops, the gas adsorbent medium is installed inside the air cleaner so that the hydrocarbon gas, which is a main component of the blow-by gas generated in the engine, is adsorbed, and the adsorbed hydrocarbon gas is desorbed by outside air and supplied to the engine. Hydrocarbon gas adsorption and desorption system for automobile air cleaner. The hydrocarbon gas adsorption / desorption device for automobile air cleaner according to claim 1, wherein the gas adsorption medium is mounted on an upper portion of the air filter of the air cleaner. The hydrocarbon gas adsorption / desorption device for automobile air cleaner according to claim 1, wherein the gas adsorption medium has a plurality of corrugated upper and lower surfaces. The hydrocarbon gas adsorption / desorption apparatus for automobile air cleaner according to claim 1 or 2, wherein the edges of the gas adsorption medium are enclosed by a plastic frame and sealed by insert injection so that activated carbon does not escape. . The hydrocarbon gas adsorption / desorption device for automobile air cleaner according to claim 1 or 2, wherein each edge end of the gas adsorption medium is bonded and sealed with a side band so that activated carbon therein does not escape. The hydrocarbon gas adsorption / desorption apparatus for automobile air cleaner according to claim 1 or 2, wherein the gas adsorption medium is composed of activated carbon located inside and a nonwoven fabric attached to upper and lower portions of the activated carbon. Manufacturing a gas adsorption medium including activated carbon therein by bending the upper and lower surfaces in multiple layers; Cutting the bent gas adsorption medium into a predetermined size; Inserting and cutting the cut gas adsorption medium into a mold; Sealing and sealing all edges of the gas adsorption medium by injecting and then injecting a plastic solution into a mold surrounding the edges of the compressed gas adsorption medium; Extracting the injected product by inserting the gas adsorption medium; Inspecting the retrieved product; Assembling the product to an air cleaner; A method of manufacturing a hydrocarbon gas adsorption / desorption device for mounting an automobile air cleaner. Manufacturing a gas adsorption medium including activated carbon therein by bending the upper and lower surfaces in multiple layers; Cutting the bent gas adsorption medium into a predetermined size; Bonding the four edges of the cut gas adsorption medium with side bands to seal them; Inspecting the retrieved product; Assembling the product to an air cleaner; A method of manufacturing a hydrocarbon gas adsorption / desorption device for mounting an automobile air cleaner.

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