KR20010085037A - a muffler for automo bile with cooling apparatus of exhaust gas - Google Patents

Abstract

PURPOSE: A vehicle muffler is provided to prevent environmental pollution by decreasing pressure and temperature of exhaust gas and to reuse the waste heat of the exhaust gas. CONSTITUTION: Exhaust gas generated in an internal combustion chamber flows into a water cooled muffler(10) through a first exhaust pipe(11a) and diffuses by a wide space(26) of the water cooled muffler. While passing through many holes of a first exhaust pressure dispersing plate(13) and a first exhaust gas dispersing plate(14), pressure and noise of the exhaust gas are reduced. A cooling water pipe(17) is installed between barriers(23) of a water cooled muffler. Thus, the high temperature exhaust gas passing through a muffler exhaust pipe(16) is refrigerated by the cooling water circulating through the cooling water pipe. Many heat emitting plates(18) are attached around the cooling water pipe and the muffler exhaust pipe to easily emit heat to the air. Therefore, environmental pollution is prevented. The waste heat of the exhaust gas is used for keep the room of a vehicle warm.

Description

A muffler for automo bile with cooling apparatus of exhaust gas}

The present invention relates to a muffler for automobiles, and more particularly, exhaust gas with high temperature, high pressure, and sound emission discharged after combustion from an internal combustion engine of an automobile is installed for exhaust pressure distribution and noise reduction in the muffler. It relates to an automobile muffler which is discharged by using a porous plate and a space, and the high-temperature exhaust gas is discharged by lowering the temperature by using a water-cooled and air-cooled cooling device. An apparatus for discharging to the outside, and as shown in FIG. 6, the exhaust apparatus discharges exhaust gas into the atmosphere and an exhaust manifold 2 that aggregates the exhaust gas discharged from each cylinder of the vehicle engine unit 1. Exhaust pipe 3, and a submuffler 4 and a main muffler 5 for attenuating exhaust noise.

The exhaust path of the exhaust gas will be described in more detail. The exhaust gas discharged from each cylinder of the engine unit 1 is collected through the exhaust manifold 2 in one place, and the exhaust gas thus collected is exhaust pipe 3. The sub-muffler (4) passes through the line, and the exhaust gas passing through the sub-muffler (4) passes through the main pipe (5) through the exhaust pipe (3) line again. ) Attenuates the exhaust sound by lowering the temperature and pressure of the exhaust gas, and the exhaust gas which is attenuated while passing through the main muffler 5 is discharged into the air through the exhaust pipe 6 connected to the outside.

FIG. 7 is a partial cutaway perspective view illustrating a conventional automobile main muffler. As shown in FIG. 7, the main muffler 5 has a space 8 formed therein, and the space includes a plurality of barriers 9. The main muffler 5 is connected to an exhaust pipe 3 for guiding the exhaust gas. The exhaust pipe 3 is coupled at the front of the main muffler 5 and is connected to the main muffler 5. First exhaust pipe 3a connected to the rearmost space 8 through each barrier 9 installed in the inner wall) and exhaust gas sent to the rearmost space 8 The second exhaust pipe 3b and now exhausted through the second exhaust pipe 3b, which are connected such that the spaces 8 are in communication with each other between the barrier 9 and the barrier 9 so as to be guided to another space 8. In order to discharge the gas to the outside, the tip of the second exhaust pipe 3b is Being connected to the connected barriers 9, and the rear end are separated by a third exhaust pipe (3c) is extended rearward through and out of the main meopulreo 5. In addition, a plurality of exhaust holes 7 having a small diameter are formed in the interval between the first exhaust pipe 3a inserted into the main muffler 5 and the second exhaust pipe 3b at predetermined intervals.

The above-described principle in which the explosion sound generated during the explosion stroke of the engine is attenuated while passing through the muffler through the exhaust pipe is explained in the exhaust pipe 3 section in the main muffler 5. The negative amplitude is reduced and attenuated while exiting the formed plurality of exhaust holes 7 and then discharged to the outside through the exhaust pipe 3.

However, in the conventional automotive muffler having such a configuration, although the sound level of sound sent to the main muffler 5 through the exhaust pipe 3 is attenuated to some extent as it passes through the exhaust hole 7, the high temperature heat is completely removed. Since it can not be cooled and discharged, hot exhaust gas is discharged to cause environmental pollution, and the temperature of the exhaust gas introduced into the engine by the exhaust gas recirculation apparatus is high, and the gas is introduced into the combustion chamber in the expanded state. In other words, the engine's compression efficiency was reduced, resulting in a decrease in engine power. Since the engine's power was reduced, the driver had to operate the accelerator pedal excessively while driving, resulting in high fuel consumption and soot generation.

The present invention has been made to solve the above problems. An object of the present invention is to reduce the pressure of the high-pressure, high-temperature exhaust gas accompanied by the exhaust from combustion of the internal combustion engine of the vehicle, reduce the exhaustion and completely cool to prevent environmental pollution, recover the waste heat of the exhaust gas To provide automotive mufflers that can be recycled.

The present invention for achieving the above object is an exhaust device for discharging the exhaust gas generated after combustion in the internal combustion engine of the automobile,

The front end is connected to the first exhaust pipe 11a, which is connected to the internal combustion engine and the exhaust gas is introduced, and the rear end is connected to the second exhaust pipe 11b, through which the exhaust gas circulated inside the water-cooled muffler 10 exits. Is connected to, and the water-cooled muffler 10 is connected to the cooling water discharge pipe 41 and the cooling water inlet pipe 42 of the heat exchanger 40 to circulate the cooling water to cool the exhaust gas on one side of the main body,

It is connected to the water-cooled muffler 10 through the cooling water discharge pipe 41 and the cooling water inlet pipe 42, and the cooling water is water-cooled through the cooling water circulation pump 48 formed at one end of the cooling water discharge pipe 41. A heat exchanger 40 which feeds the muffler 10 and receives the heated coolant through the coolant inflow pipe 42 and cools it by using a heat exchanger fan 45 installed outside,

The front end is connected to a second exhaust pipe 11b through which the exhaust gas passing through the water-cooled muffler 10 is discharged, and the rear end is a third exhaust pipe for discharging the exhaust gas circulated inside the air-cooled muffler 30 to the atmosphere. It is connected to 11c), characterized in that consisting of an air-cooled muffler 30 is attached to the outside the muffler fan 37 for cooling the heat of the exhaust gas,

1 is an overall configuration diagram of a muffler of the present invention

Figure 2 is a perspective view of the water-cooled muffler in the state of removing the heat shield plate from the muffler of the present invention,

Figure 3 is an exhaust gas dispersion porous plate in the muffler of the present invention,

4 is an exhaust gas dispersion silencer in the muffler of the present invention,

5 is a view of the exhaust gas limestone silencer in the muffler of the present invention,

6 is a perspective view showing a conventional vehicle exhaust apparatus,

7 is a partial cutaway perspective view showing a conventional automobile main muffler,

<Explanation of symbols for main parts of drawing>

10: water-cooled muffler 11: exhaust pipe

11a: first exhaust pipe 11b: second exhaust pipe

11c: third exhaust pipe 13: first exhaust air pressure dispersion plate

14: first exhaust gas dispersion noise plate 15: exhaust gas dilution noise plate

16: water-cooled muffler exhaust pipe 17: water-cooled muffler coolant pipe

18: water-cooled muffler heat sink 19: coolant inlet

20: coolant outlet 21: water-cooled mudler coolant passage

22.23.24: Water-cooled mudula barrier 26: Water-cooled mudula space

30: air cooled muffler 32: air cooled muffler barrier

33: Second exhaust pressure dispersion porous plate 34: Second exhaust gas dispersion silencer

35: air-cooled muffler exhaust pipe 36: air-cooled muffler heat sink

37: Muffler Fan (FAN) 38: Air-cooled Muffler Space

40: heat exchanger 41: coolant discharge pipe

42: coolant inlet tube 43: heat exchanger coolant tube

44: heat exchanger heat sink 45: heat exchanger pen (FAN)

46: heat exchanger cooling water passage 47: heat exchanger barrier

48: cooling water circulation pump

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

1 is an overall configuration diagram of the muffler of the present invention, Figure 2 is a perspective view of the water-cooled muffler with the heat shield removed from the muffler of the present invention, as shown in Figure 1 exhaust gas generated in the internal combustion engine is the first exhaust The exhaust gas introduced into the water-cooled muffler 10 through the pipe 11a is introduced into the water-cooled muffler 10 through the narrow first exhaust pipe 11a by the suddenly widened water-cooled muffler space 26. Pressure and noise are reduced while being diffused and exiting a plurality of staggered holes of the first exhaust air pressure dispersion porous plate 13 and the first exhaust gas dispersion silencer 14,

Pass through the water-cooled muffler exhaust pipe (16) installed between the water-cooled muffler barrier (22, 24), the water-cooled muffler exhaust pipe (16) through the water-cooled muffler barrier (23) and the barrier (23) In between the water-cooled muffler (10) there is a water-cooled muffler coolant pipe (17) formed through the barriers (24) formed in the center and the exhaust gas dilution noise plate (15) to circulate the coolant. It is possible to cool the exhaust gas of the high temperature passing through the muffler exhaust pipe (16), and a plurality of fin-type water-cooled muffler room around the water-cooled muffler exhaust pipe (16) and the water-cooled muffler cooling water pipe (17). The heat plate 18 is attached to facilitate heat dissipation into the air.

Cooling water circulating in the water-cooled muffler cooling water pipe (17) is a coolant flow installed on one side of the water-cooled muffler cooling water passage (21) formed between the barrier (22) and the barrier (23) of the water-cooled muffler (10). The heat exchanger 40 and the water-cooled muffler 10 are circulated through the coolant discharge pipe 41 and the coolant inlet pipe 42 of the heat exchanger 40 connected to the inlet 19 and the coolant outlet 20. Cooling water is forced to be circulated by driving the cooling water circulation pump 46 installed at one end of the cooling water discharge pipe 41. The circulation of the cooling water is performed in the heat exchanger cooling water passage 46-> cooling water discharge pipe 41-> cooling water. Circulating pump (48) → Chilled water inlet pipe (19) → Water cooled muffler cooling water passage Cooling water pipe (17) → Water cooling muffler cooling water passage (21) → Cooling water outlet (20) → Cooling water inlet pipe (42) → Heat exchanger Cooling water inlet pipe (42) → heat exchanger cooling water passage (46) → heat exchanger cooling water pipe (43) → heat The circulation process passing through the exchanger coolant passage 46 is repeated,

On the outside of the heat exchanger coolant pipe 43, a plurality of fin-shaped heat exchanger heat sinks 44 and a heat exchanger fan 45 are attached, which is hot due to the heat of the exhaust gas passing through the water-cooled muffler 10. In order to cool the cooling water, the heat exchanger fan 45 and the cooling water circulation pump 48 receive a temperature data from a cooling water temperature sensor (not shown) that detects the cooling water temperature of the heat exchanger 40 (not shown). When the temperature of the coolant is high temperature, it rotates quickly according to the control signal of FIG.), And when it is low temperature, it rotates slowly for efficient operation.In the air-cooled car, waste heat of the exhaust gas blown by the heat exchanger fan 45 is stored in the vehicle interior Inflow or heat exchanger 40 can be installed in the room to be used for indoor insulation, enabling efficient use and saving of energy.

The exhaust gas exiting the water-cooled muffler exhaust pipe 16 diffuses into the water-cooled muffler space 26 formed in the center of the water-cooled muffler 10, and then is formed in the water-cooled muffler barrier 24. Passing through the exhaust dilution noise plate 15 having a plurality of holes intersected with the holes of the muffler exhaust pipe 16, the exhaust gas from the multiple water-cooled muffler exhaust pipe 16 is mixed with each other to further increase the cooling effect. The pressure was reduced by passing through a large number of staggered holes, reducing the amplitude of the sound, attenuating the sound, and allowing it to diffuse from the narrow conduit into the wide water-cooled muffler space (26).

The exhaust gas passing through the hole of the exhaust gas dilution noise plate 15 is diffused through the water-cooled muffler exhaust pipe 16 to the water-cooled muffler space 26 formed at the end of the water-cooled muffler 10. After that, it flows into the air-cooled muffler 30 through the second exhaust pipe 11c,

Exhaust gas introduced into the air-cooled muffler 30 through the second exhaust pipe 11b is diffused by the suddenly widened air-cooled muffler space 38, and the second exhaust pressure dispersion porous plate 33 and the second exhaust gas dispersion The pressure and noise are further reduced by passing through several holes of the silencer 34 alternately, passing through the air-cooled muffler barrier 32 and the air-cooled muffler exhaust pipe 35 installed between the barrier 32 and the air-cooled type. After being diffused into the muffler space 38, the air is discharged into the atmosphere through the third exhaust pipe 11c. A plurality of fin-shaped air-cooled muffler heat sinks 36 and a muffler fan 37 are formed outside the air-cooled muffler exhaust pipe 35. Is attached, and the exhaust gas, which has been primarily cooled while passing through the water-cooled muffler 10, is cooled again and discharged into the atmosphere.

The exhaust gas discharge path will be described again, and the exhaust gas is discharged from the first exhaust pipe 11a → water-cooled muffler space 26 → first exhaust air pressure dispersion porous plate 13 → water-cooled muffler space 26. → 1st exhaust gas dispersion silencer plate (14) → water-cooled muffler space (26) → water-cooled muffler exhaust pipe (16) → water-cooled muffler space (26) → exhaust-gas dilution noise plate (15) → water Chilled muffler space (26) → Water-cooled muffler exhaust pipe (16) → Water-cooled muffler space (26) → Second exhaust pipe (11b) → Air-cooled muffler space (38) → Second exhaust air pressure dispersion porous plate (33 → air-cooled muffler space (38) → second exhaust gas dispersion noise plate (34) → air-cooled muffler space (38) → air-cooled muffler exhaust pipe (35) → air-cooled muffler space (38) → third exhaust pipe (11c) Pass through and discharge into the atmosphere,

As described above, the first and second air pressure dispersion porous plates 13 and 33 and the first and second exhaust gas dispersion noise plates 14 pass through the water-cooled muffler 10 and the air-cooled muffler 30. 34) and utilizing the space associated with the exhaust gas dilution noise plate 15, by repeating the diffusion from the narrow hole to the wide space to lower the high pressure exhaust gas pressure, passing through a plurality of holes formed so as not to overlap each other The amplitude of the sound was reduced so that the sound was attenuated, and after the first cooling with the coolant, the second cooling with the air was performed again to completely cool the exhaust gas and discharge it to the atmosphere.

The first and second exhaust pressure dispersion porous plates 13 and 33 and the first and second exhaust gas dispersion silencer plates 14 and 34 are plates having a plurality of holes, as shown in FIGS. 3 and 4. The holes of the two facing plates were staggered so as not to overlap each other so that the exhaust gas could not pass directly but bend and deflect and pass through. The first and second exhaust pressure dispersion porous plates 13 and 33 and the first and second As shown in FIGS. 3 and 4, the second exhaust gas dissipation sound absorbing plates 14 and 34 are plates having a plurality of holes, and the holes of the two facing plates are alternately drilled so as not to overlap each other so that the exhaust gas passes straight through. The shape of the holes drilled in the first and second exhaust pressure dispersion porous plates 13 and 33 and the first and second exhaust gas dispersion silencer plates 14 and 34 is refracted and deflected. Not only circular but also oval or polygon In addition, the shapes of the water-cooled muffler exhaust pipe (16), the water-cooled muffler cooling water pipe (17), and the air-cooled muffler exhaust pipe (35) can be changed depending on the situation, as well as circular or oval or polygonal. Is possible,

As illustrated in FIG. 5, the exhaust gas dilution silencer 15 is formed through a plurality of holes 16 and a water-cooled muffler coolant pipe 17 that are staggered so as not to overlap with the holes of the water-cooled muffler exhaust pipe 16. Exhaust gas formed through the hole 17 and exiting the water-cooled muffler exhaust pipe 16 passes through the hole of the exhaust gas dilution silencer 15 provided in the space 26 in the center of the water-cooled muffler 10. The exhaust gas on the inside and the outside were mixed with each other to increase the cooling efficiency, while attenuating the exhaust gas by using a plurality of holes. The hole shape of the exhaust gas dilution noise plate 15 is not only circular but also circular. It is possible to change the oval or polygon according to the situation.

As described above, by reducing the primary and secondary exhaust gases, damping attenuation and cooling, the pressure of the high-pressure exhaust gas is reduced, the noise is reduced, and the high-temperature exhaust gas is completely cooled and discharged to prevent environmental pollution. In the air-cooled vehicle, the waste heat of the exhaust gas blown by the heat exchanger fan 45 can be introduced into the vehicle interior, or the heat exchanger 40 can be installed indoors to utilize indoor insulation to save energy efficiently. Is possible,]

As described above, according to the present invention, by reducing the pressure of the high-pressure, high-temperature exhaust gas accompanied by the sound exhausted after combustion in the internal combustion engine of the vehicle, reduce the sound exhaustion, completely cooled and discharged to prevent environmental pollution, exhaust By recovering and recycling the waste heat of the gas, the energy can be saved.

Claims (5)

In the exhaust device for exhausting the exhaust gas generated after combustion in the internal combustion engine of the vehicle, The front end is connected to the first exhaust pipe 11a which is connected to the internal combustion engine and the exhaust gas is introduced, and the rear end is connected to the second exhaust pipe 11b through which the exhaust gas circulated inside the water-cooled muffler 10 flows out. The water-cooled muffler 10 is connected to the cooling water discharge pipe 41 and the cooling water inlet pipe 42 of the heat exchanger 40, which cools the exhaust gas by circulating the cooling water on one side of the main body, and the cooling water. It is connected to the water-cooled muffler 10 through the discharge pipe 41 and the coolant inlet pipe 42, and the cooling water is passed through the cooling water circulation pump 48 formed at one end of the coolant discharge pipe 41. And a heat exchanger 40 for receiving the heated coolant through the coolant inlet pipe 42 and cooling it using a heat exchanger fan 45 installed outside, The front end is connected to the second exhaust pipe 11b through which the exhaust gas passed through the water-cooled muffler 10 comes out, and the rear end is the third exhaust pipe for exhausting the exhaust gas circulated inside the air-cooled muffler 30 to the atmosphere. An automotive muffler, which is connected to 11c and is formed of an air-cooled muffler 30 having a muffler fan 37 to cool the heat of exhaust gas on the outside thereof. The method of claim 1, The water-cooled muffler 10 is formed to face the first air pressure dispersion porous plate 13 having a plurality of holes and the air pressure dispersion porous plate 13, and the air pressure dispersion porous plate 13 The first exhaust gas dispersion noise plate 14 having a plurality of holes intersected with the holes of the plurality of holes and a plurality of holes through which the exhaust gas passes through between the water-cooled muffler barrier 22 and the barrier 24. A water-cooled muffler exhaust pipe 16, a water-cooled muffler coolant passage 21 formed between the water-cooled muffler barrier 22 and the barrier 24, and the water-cooled muffler barrier 24 and the barrier ( An exhaust gas dilution noise plate 15 provided between the barriers 24 and the water-cooled muffler barrier 23 and the barrier 23 between the water-cooled muffler barrier 23 and the barrier 23. 24) and several water-cooled muffler cooling through the exhaust dilution noise plate (15). The water-cooled muffler outer wall 29 and the water-cooled muffler exhaust pipe 16 and the water-cooled tube which connect the pipe 17 and the barriers to form an exterior to form a water-cooled muffler space 26 therein. A plurality of fin-shaped water-cooled muffler heat-dissipating plate 18 formed around the type muffler cooling water pipe 17 to cool the heat and formed on one side of the water-cooled muffler cooling water passage 21 to cool the water. Automobile muffler, characterized in that consisting of the inlet and outlet coolant oil inlet 19 and the coolant outlet 20, The method according to claim 1 or 2, The heat exchanger 40 is formed on one side of the coolant discharge pipe 41 through which the coolant sent to the water-cooled muffler 40 passes, and the coolant discharge pipe 41 to circulate the coolant. (48), a coolant inlet pipe (42) for circulating the water-cooled muffler (10) to introduce heated cooling water, and a plurality of fins installed through the heat exchanger barrier (47) and the barrier (47). A heat exchanger fan 45 formed at an outer side of the heat exchanger heat dissipation plate 44 and the cooling water pipe 43 to cool the heat of the heat exchanger heat dissipation plate 44 and the heat exchanger cooling water pipe 43; A heat exchanger outer wall 49 which is connected to the barriers and forms an exterior to form a heat exchanger coolant passage 46 therein, and is installed at one side of the heat exchanger coolant passage 46 to sense a temperature of the coolant Cooling water temperature sensor characterized in that consisting of Automotive muffler, The method of claim 3, wherein The air-cooled muffler 30 is formed so as to face the second air pressure dispersion porous plate 33 in which a plurality of holes are drilled, and the air pressure dispersion porous plate 33, and the hole of the exhaust pressure dispersion porous plate 33. And a plurality of air exhaust muffler exhaust pipes 35 through which the second exhaust gas dispersion noise plate 34 having a plurality of holes intersected with each other and through the air-cooled muffler barrier 32 and the barrier 32 is passed through. ), An air-cooled muffler outer wall 39 connecting the barriers and forming an exterior to form an air-cooled muffler space 38 therein, and a plurality of fins formed around the air-cooled muffler exhaust pipe 35 to cool the heat. An air-cooled muffler heat-dissipating plate 36 of the form and a muffler fan 21 formed outside the air-cooled muffler exhaust pipe 35 to cool the heat of the air-cooled muffler heat-dissipating plate 36 and the air-cooled muffler exhaust pipe 35. Meopulreo for car, characterized in that formed, The method of claim 4 The rotational speed of the heat exchanger fan 45 and the coolant circulation pump 48 is variable according to a control signal of a control unit receiving temperature data from a coolant temperature sensor,