KR100516994B1 - Exhaust regulating unit of exhaust system for internal combustion engine - Google Patents

Abstract

The present invention relates to an exhaust control unit of an exhaust system for an internal combustion engine, and more particularly, a casing coupled to one end of a noise tube embedded in a housing of a silencer and having a hollow tube having a predetermined size; At least one guide blade is provided radially to guide the exhaust gas in one end of the casing, and a guide jacket having a rotation axis of a predetermined length formed on the other end thereof; A rotating body having at least one blade formed at an outer diameter so as to be freely rotated by the exhaust gas introduced into and coupled to the rotating shaft of the guide jacket; Free rotating means of the rotating body for allowing the rotating body to rotate freely by the exhaust gas flowing from the rotating shaft; And a diffuser coupled to the rotating shaft penetrating to the other side of the rotating body to guide the exhaust gas to be exhausted.

Therefore, the blades rotate freely according to the exhaust amount and flow rate of the exhaust gas, so that the exhaust resistance is maintained at medium and low speeds, and the exhaust gas is rapidly sucked and discharged by the rotational inertia of the freely rotating blades at high speeds above the medium speed. Provided is an exhaust control unit of an exhaust system for an internal combustion engine that increases engine efficiency and reforms harmful substances in exhaust gas passing through a blade.

Description

Exhaust regulating unit of exhaust system for internal combustion engine

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an exhaust control unit of an exhaust system for an internal combustion engine, and more particularly, to a blade that freely rotates according to the exhaust amount and flow rate of the exhaust gas. The present invention relates to an exhaust control unit of an exhaust system for an internal combustion engine that allows exhaust gas to be rapidly sucked and discharged by rotational inertia, thereby increasing the efficiency of the internal combustion engine and reforming harmful substances of the exhaust gas passing through the blade.

In general, the silencer (1) and the muffler (1) of the exhaust system for the internal combustion engine is a sound exhausted when the combustion gas of the engine directly sent out to remove the noise and increase the efficiency of the internal combustion engine through the discharge of the exhaust gas. Device.

It is common for such a silencer to install an expansion chamber in the middle of the exhaust pipe to attenuate the sound by using sound wave reflection or resonance phenomenon between the inner walls or to insert a sound absorbing material that reduces the acoustic energy by friction with the sound wave in the exhaust gas passage. .

The prior art for the silencer 1 will be described with reference to FIG. 1 as follows.

First, the housing 2 of the silencer 1 is provided with a space having a predetermined size, and inside the housing 2, a sound pipe 3 is installed in the longitudinal direction, and at one end of the sound pipe 3 A discharge pipe 4 for discharging the exhaust gas introduced into the silencer to the outside is connected to communicate with the outside of the housing 2.

On the other hand, the other end of the sound pipe (3) is connected to the exhaust pipe 5 for guiding the exhaust gas discharged from the internal combustion engine, the other end of the sound pipe (3) is a state in which a plurality of wings are twisted at a predetermined angle Rotor 6 is fixedly coupled to the water flow and vortex of the exhaust gas is formed and introduced.

Therefore, when the exhaust gas discharged from the internal combustion engine flows into the sound pipe 3 provided at the other end of the housing 2 of the silencer 1 through the exhaust pipe 5, the rotor 6 mounted at the other end of the sound pipe 3 is provided. The exhaust gas is vortexed by the vanes 6a to enter the noise tube 3.

Therefore, the exhaust gas flowing into the sound pipe 3 passes through the vortex instead of passing through the sound pipe 3 in a straight line, so that a plurality of through holes 7 are formed to penetrate into the inner and outer diameters of the sound pipe 3. As it passes through it, it expands gradually and the pressure and temperature decrease to prevent binge drinking.

However, such a conventional silencer has a problem that the resistance to the flow of the exhaust is increased when the noise effect is increased, and the noise effect is lowered when the output of the internal combustion engine is reduced and the exhaust resistance is reduced.

On the other hand, if the flow rate of the exhaust gas is medium or low speed, staying with constant exhaust resistance increases the efficiency of the internal combustion engine rather than rapidly exhausting the exhaust gas. In this conventional structure, the efficiency of the internal combustion engine could not be maximized because the exhaust gas can be discharged at the same exhaust resistance uniformly regardless of the middle, low, and high speeds of the exhaust gas flow rate. There was a problem.

In addition, as is well known, hydrocarbons, carbon monoxide, carbon dioxide, and nitrogen oxides, which are exhaust gases generated from internal combustion engines, are becoming a major cause of environmental pollution, and the reforming of exhaust gases is a social problem. Since there is a structure that releases the harmful substances of these exhaust gases in the unmodified state, there is a problem that seriously affects the environmental pollution.

The present invention devised to solve the above problems, when the exhaust gas is discharged, to increase or decrease the exhaust resistance according to the amount of exhaust, thereby improving the output of the internal combustion engine so that fuel can be saved, and the air pollution Its purpose is to enable the release of harmful substances in the main exhaust gases in a reformed state.

The above object is, in the exhaust control unit of the exhaust system for the internal combustion engine, the casing is coupled to the inside of one end of the silencer 103 is built in the housing 102 of the silencer 101, the hollow portion 104a of a predetermined size ( 104); A guide jacket 105 having at least one guide blade 105a radially provided to radially fit inside one end of the casing 104 to guide the exhaust gas, and a rotation shaft 106 of a predetermined length formed at the other end thereof; A rotating body 107 having at least one blade 107a formed at an outer diameter so as to be freely rotated by the exhaust gas which is inserted into and coupled to the rotation shaft 106 of the guide jacket 105; Free rotating means of the rotating body for allowing the rotating body (107) to rotate freely on the rotating shaft (106) by the exhaust gas introduced therein; The rotary body 107 is achieved by the exhaust control unit of the exhaust system for an internal combustion engine, characterized in that it comprises a diffuser 108 is coupled to the rotating shaft 106 penetrated to the other side to guide the exhaust gas.

Here, the free rotating means of the rotating body, the bearing 109 is coupled to the inner diameter of the rotating body 107 to be inserted into the rotating shaft 106; A fixed protrusion 110 connected to the outer diameter surface of the other end of the rotating shaft 106 to be in contact with one inner ring 109a of the bearing 109; An elastic member 111 inserted into the rotating shaft 106 penetrating to one side of the rotating body 107 to be in contact with the other inner ring 109a of the bearing 109 and having a predetermined elastic restoring force; A fastener 112 inserted into the rotation shaft 106 penetrating to the other side of the elastic member 111 to be elastically supported by the elastic member 111; It includes a stop ring 114 is inserted into the fixing groove 113 of the rotating shaft 106 penetrated to the other side of the fixture 112 so that the fixture 112 is held by the elastic member 111 is maintained.

In addition, it is preferable that a plurality of rotating bodies 107 are inserted into the rotating shaft 106 so as to be freely rotatable.

In addition, the engaging jaw 115 is formed at a predetermined position of the inner diameter surface of the front end of the sound pipe 103 to stop the casing 104 is stopped; A key groove 116 formed to be connected to the inner diameter surface of the noise tube 103 at one side of the casing 104 in a predetermined width; It is preferable to include a first link key 117 inserted into the key groove 116 and formed in a ring shape to fix the casing 104, and having a handle 137 protruding a predetermined size inwardly at both ends thereof partially cut. .

The blade 107a is formed of a magnetic material, forms at least one or more insertion grooves 121 on at least one of the inner and outer diameter surfaces of the casing 104, and inserts and attaches the magnet 120 to the magnet. N pole at one end of any magnet 120 so that the magnetic field generated from the 120 and the blade 107a interfere, and a magnetic force line is formed in the rotational direction of the blade 107a according to the exhaust gas flowing into the casing 104. It is preferable to arrange the S pole on the other end of the adjacent magnet 120.

In addition, the screw hole 122 formed at a predetermined position of the sound pipe 103 corresponding to the insertion groove 121 of the casing 104; An electrostatic inductor 123 which penetrates through the housing 102 of the muffler 101 and is fastened to the screw hole 122 so that a current is induced by a magnetic field change due to the rotation of the blade 107a; An amplifier 124 configured to amplify the voltage generated by the electrostatic inductor 123; An A / D converter 125 configured to convert the amplitude and the period of the voltage amplified by the amplifier 124 into digital data; A control unit 127 configured to calculate the exhaust gas amount data and the flow rate data of the exhaust gas with reference to the digital data converted by the A / D converter 125 and the voltage table stored in the memory unit 126; It is preferable to further include a display unit 128 to display the data calculated by the control unit 127.

In addition, by forming the blade 107a into an ultrasonic oscillation material, the ultrasonic wave is oscillated in the rotating blade 107a, so that interference between the ultrasonic wave and the exhaust gas is preferably generated.

Hereinafter, the operation of the present invention will be described with reference to the accompanying drawings 2 to 6 as follows.

First, a discharge pipe 118 is connected to the other end of the silencer 103 installed in the longitudinal direction inside the housing 102, and the other end of the housing 102 communicates with the outside of the housing 102. One end of the sound pipe 103 is coupled to the housing 102 and connected to an exhaust pipe (not shown) configured to guide exhaust gas from the internal combustion engine.

In addition, one end of the sound pipe 103, the rotor 107 is formed with at least one blade (107a) is formed to be freely rotated in accordance with the inflow of the exhaust gas is coupled to the casing 104, this rotation The whole 107 is fitted to one end of the rotating shaft 106 of the guide jacket 105 provided with a plurality of guide wings 105a radially so that the exhaust gas flowing from the exhaust pipe is guided to the blade 107a of the rotating body 107 It is free to rotate.

Here, the free rotation means of the rotating body 107 to allow the rotating body 107 to be freely rotated by the exhaust gas, the bearing 109 to the inner diameter of the rotating body 107 fitted to the rotating shaft 106 2 and 3 are coupled to the rotary shaft 106, so that the rotor 107 and the blade 107a can be naturally rotated by the exhaust gas guided to the guide jacket 105.

Here, as shown in FIGS. 3 and 4, the other end of the guide jacket 105, that is, one end of the rotation shaft 106, protrudes to a relatively larger outer diameter than the rotation shaft 106, thereby bearing 109. By contacting one end of the inner ring 109a, one side outer ring 109b of the bearing 109 and one side surface (one side of the blade 107a) of the rotating body 107 come into contact with the guide jacket 105 to generate interference. This prevents a smooth rotation.

In addition, an elastic member 111 is inserted into the rotation shaft 106 penetrating to the other side of the rotating body 107 to be in contact with the other end of the inner ring 109a of the bearing 109, and the other end of the elastic member 111. The fixing shaft 112 is inserted into the rotating shaft 106 penetrating to the side to be supported by the elastic force of the elastic member 111.

Here, the stop ring 114 is inserted into the fixing groove 113 so that the fixing member 112 can be supported by the elastic member 111, and the fixing member 112 is inserted into the rotating shaft 106 to one side. By pushing the elastic member 111 to compress and at the same time to expose the fixing groove 113 of the rotating shaft 106 penetrated to the other side of the fastener 112 by inserting the stop ring 114, the elastic member 111 is The fastener 112, which holds the fastener 112 to the other side and is moved to the other side, is stopped by the stop ring 114.

At the same time, the elastic member 111 holds the inner ring 109a of the bearing 109 of the rotating body 107 so that the inner ring 109a of the rotating body 107 is fixed between the fixing protrusion 110 and the elastic member 111. To make it possible.

Here, a washer 119 of a predetermined size is inserted between the elastic member 111 and the other end of the bearing 109 to have a close contact state between the other end surface of the washer 119 and the bearing 109 as shown in FIG. 3. At the same time, it is preferable that one end of the elastic member 111 is in contact with the washer 119 relatively wider than the inner ring 109a to prevent interference with the inner ring 109a.

And, the fastener 112 may have a shape of the washer 119, but in order to protect the elastic member 111 by exteriorizing the elastic member 111, the pipe shape as shown in FIG. It is preferable to take, and the present invention is not limited thereto.

On the other hand, the rotating shaft 106 is arranged on the other side of the fastener 112, a plurality of guide surfaces are fixed to the diffuser 108 arranged radially to diffuse and dissipate the exhaust gas passing through the blade 107a.

The guide jacket 105, the rotating body 107, the blade 107a, and the diffuser 108 are fixed to the inner surface of the tubular casing 104 by the guide jacket 105 and the diffuser 108. To be possible.

On the other hand, a guide groove (not shown) is formed in the inner diameter surface of the casing 104 in the longitudinal direction, and the tip of the guide wing 105a of the guide jacket 105 and the guide surface of the diffuser 108 are formed in the guide groove. After allowing the tip to be guided, the key grooves 116 are formed at predetermined positions at both ends of the inner diameter surface of the casing 104.

Then, after inserting the guide jacket 105, the rotating body 107, the blade 107a, the diffuser 108, and inserting the first link key 117, the guide jacket 105, the rotating body 107 and The blade 107a and the diffuser 108 can be fixed inside the casing 104 as well as the first link key 117 can be removed to remove the component from the casing 104. .

Here, the first link key 117 is in the form of a circular ring, as shown in Figure 3, both ends are provided with a handle 137 of the shape bent inwardly in a state that a part is cut handle 137 Holding and pulling each other, the inner and outer diameters of the first link key 117 are reduced in diameter, and can be easily inserted into the key grooves 116 of the casing 104. When the handle 137 is released, the inner and outer diameters are enlarged to the key grooves 116. By being seated, the first link key 117 forms a jaw, and thus one end of the guide jacket 105 and the other end of the diffuser 108 may be caught on the jaw to prevent detachment.

On the other hand, the rotary body 107 inserted into the rotary shaft 106 is connected to the plurality of rotary bodies 107 with the connection washer 129 as shown in Figure 5 in accordance with the exhaust capacity of the internal combustion engine, Preferably, the rotating bodies 107 are each freely rotatable.

The casing 104 is inserted into and coupled to the inner diameter of the distal end of the sound pipe 103. In order to fix the casing 104 to the inner diameter of the sound pipe 103, the sound pipe (as shown in FIG. The boring process is performed from one end of the inner diameter surface of the 103 to increase the inner diameter surface by a predetermined depth. At this time, the end of the enlarged inner diameter surface is formed by the engaging jaw 115, and the casing 104 is inserted into the engaging jaw. It is caught by 115 so that it is not inserted anymore.

In addition, one end of the sound pipe 103, the inner diameter surface of the key groove 116 is formed in a predetermined width, and when the casing 104 is inserted, grab the handle 138 of the second link key 136 and pull each other link key ( 136, the inner and outer diameters are reduced in diameter and easily inserted into the keyway 116 of the sound pipe 103, then release the handle 137, the inner and outer diameters are enlarged and the second link key 136 is seated in the keyway 116. Preferably, the jaw is formed by the second link key 136 so that the casing 104 is caught by the jaw so as not to be detached.

In addition, the blade 107a is formed of a magnetic material, and a plurality of magnets 120 are attached to at least one of the inner and outer diameter surfaces of the casing 104 so that the magnetic field of the predetermined size interferes with the blade 107a. To modify the exhaust gas, molecules such as hydrocarbons, carbon monoxide, carbon dioxide, and nitrogen oxide, which are harmful substances included in the exhaust gas, are weakened by a magnetic field and separated.

Here, when interference occurs in the magnetic field according to the rotation of the blade 107a, the resolution of the molecules is improved to effectively achieve the effect of reforming the exhaust gas.

Therefore, when the exhaust gas guided to the guide jacket 105 is medium or low speed, when the exhaust gas hits the blade 107a of the rotating body 107 having the stop inertia, the kinetic energy of the exhaust gas is the blade 107a. ) And the rotating body 107 is converted into a force to rotate.

Therefore, since the exhaust gas is discharged while receiving a predetermined exhaust resistance at medium and low speeds, the exhaust gas is slowly discharged rather than the rapid discharge so that the output of the internal combustion engine can be increased, and once the rotor 107 starts to rotate When the exhaust gas flows at a high speed, the rotating blade 107a and the rotating body 107 have rotational inertia, so that the rotating body 107 rotates at a higher speed and quickly exhausts the exhaust gas to the outside. The output of the internal combustion engine is raised.

On the other hand, when the internal combustion engine is switched between the high speed operation, the medium speed and the low speed operation, a return phenomenon occurs in which the exhaust gas is rapidly reversed in the opposite direction to the exhaust direction (the internal combustion engine direction). When sucked to the internal combustion engine side, a certain amount of energy is required to discharge it, which may cause a problem that the output of the internal combustion engine is lowered accordingly.

However, in the present invention, when the blade 107a rotates in the forward direction and the return phenomenon occurs, the returned exhaust gas must pass through the blade 107a at the same time as the blade 107a rotates in the reverse direction. Once the inertial blade 107a is stopped by the exhaust gas flowing back, part of the energy of the exhaust gas flowing back is exhausted to stop the blade 107a, and predetermined energy is required to rotate the blade 107a in the reverse direction again. Will be needed.

Such a series of actions acts as the exhaust resistance of the exhaust gas flowing back to suppress the reverse flow of the exhaust gas as much as possible, thereby preventing the output reduction of the internal combustion engine.

Therefore, as described above, the rapid return phenomenon occurs in a very short time, and therefore, exhaust resistance at the time of switching to forward and reverse rotation can maximize the output and efficiency of the internal combustion engine.

Meanwhile, when the rotation direction of the blade 107a is determined according to the exhaust gas flowing into the casing 104, an N pole is disposed at one end of any magnet 120 along the rotation direction, and the other end of the adjacent magnet 120 is disposed at the end of the casing 104. The S pole is disposed so that the magnetic force lines are formed in the rotational direction of the blade 107a so that the rotation of the blade 107a can be smoothly made.

Here, a screw hole 122 is formed at a position of the sound pipe 103 corresponding to the magnet 120 inserted into and inserted into the insertion groove 121 of the casing 104, and the screw hole 122 has a magnetic field. The electrostatic induction 123 is fastened to induce electromotive force according to the change, and the electrostatic induction 123 is coupled to the housing 102 of the silencer 101 and the blade 107a in the magnetic field formed by the magnet 120. Rotates to induce an electromotive force by using a change in the magnetic field

That is, when the magnetic field lines change through the circuit, the magnetic field lines change according to the rotation of the blade 107a according to the Faraday law that generates an electromotive force to flow a current in the circuit, the induced electromotive force is generated in the electrostatic induction machine 123. .

The induced current thus flows to the amplifier 124 along the lead 130, and the amplifier 124 amplifies the voltage of the minute induced current.

The amplified voltage is converted back into digital data by the A / D converter 125. The converted data is converted into digital data by the controller 127 with reference to the voltage table stored in the memory according to the amplitude and period of the voltage. By calculating the displacement and flow rate of the control to be displayed on the display unit 128, the user can check and observe the displacement and flow rate of the internal combustion engine at any time in real time.

On the other hand, by forming the blade 107a into an ultrasonic oscillation material, harmful substances of the exhaust gas passing through the blade 107a are modified by ultrasonic waves oscillated from the blade 107a to minimize environmental pollution.

As described above, the present invention allows the exhaust gas discharged from the internal combustion engine to be discharged slowly using the exhaust resistance in the case of medium and low speed so that the output of the internal combustion engine at the medium and low speed is ensured, and the flow rate of the exhaust gas is high. In one case, the rotational inertia of the blade to be rotated is used to allow the exhaust gas to be discharged more rapidly, so that the output of the internal combustion engine can be increased even at a high speed, and thus the discharge rate of the exhaust gas is stretched in accordance with the speed of the flow rate. Can be controlled to maximize the efficiency of the internal combustion engine, and also to improve the reliability by displaying the exhaust amount, flow rate and exhaust state of the exhaust gas during operation of the internal combustion engine, and in particular, the magnet Of the flue gas through the continuous change of magnetic field and magnetic field and the oscillation of ultrasonic wave Modification effect has the effect of minimizing environmental pollution.

1 is a partially cutaway perspective view showing a silencer structure of a conventional exhaust system.

Figure 2 is an exploded perspective view showing a coupling structure of the present invention exhaust control unit and the silencer.

Figure 3 is an exploded perspective view showing the structure of the exhaust control unit of the present invention.

4 is a cross-sectional view showing a state in which the exhaust control unit of the present invention is assembled in a silencer.

5 is a cross-sectional view showing an embodiment of the present invention.

6 is a schematic diagram showing another embodiment of the present invention.

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

101: silencer 102: housing

103: sound tube 104: casing

105: guide jacket 106: rotation axis

107: rotating body 108: diffuser

109: bearing 110: fixed protrusion

111: elastic member 112: fastener

113: fixing groove 114: stop ring

115: jam jaw 116: keyway

117: first linkage 118: discharge pipe

119 washer 121 magnet

122: insertion groove 123: screw hole

124: Amplifier 125: A / D Converter

126: memory section 127: control section

128: display unit 129: connection washer 136: second link key 137: handle of the first link key 138: handle of the second link key

Claims (8)

In the exhaust control unit of the exhaust system for automobile internal combustion engine, A casing coupled inside one end of the noise tube embedded in the housing of the silencer and having a predetermined size hollow tube; At least one guide blade is provided radially to guide the exhaust gas in one end of the casing, the guide jacket having a rotation axis of a predetermined length formed on the other end; A rotating body having at least one blade formed to be freely rotated by the exhaust gas which is inserted into and coupled to the rotation shaft of the guide jacket; Free rotating means of the rotating body for allowing the rotating body to rotate freely on the rotating shaft by the exhaust gas introduced therein; An exhaust control unit of the exhaust system for an automobile internal combustion engine, characterized in that it comprises a diffuser coupled to the rotating shaft penetrating the other side of the rotating body to guide the exhaust gas. The method of claim 1, The free rotation means of the rotating body, A bearing coupled to the inner diameter of the rotating body and inserted into the rotating shaft; A fixing protrusion connected to one end of an outer diameter of the rotary shaft and maintained in contact with one inner ring of the bearing; An elastic member inserted into the rotating shaft penetrating the other side of the rotating body to be in contact with the other inner ring of the bearing and having a predetermined elastic restoring force; A fastener inserted into the rotating shaft penetrating to the other side of the elastic member to be elastically supported by the elastic member; The exhaust control unit of the exhaust system for an automobile internal combustion engine, characterized in that it comprises a stop ring which is inserted into the fixing groove of the rotating shaft penetrated to the other side of the fixture so that the fixture is held by the elastic member. The method of claim 1, An exhaust control unit of the exhaust system for an automobile internal combustion engine, characterized in that the rotating shaft is inserted and coupled so that a plurality of rotating bodies can be freely rotated. The method of claim 1, A catching jaw which is formed at a predetermined position of the inner surface of the front end of the sound pipe and stops the inserted casing; A key groove connected to an inner diameter surface of the noise tube at one side of the casing at a predetermined width; An exhaust system for an internal combustion engine of an automobile comprising: a first link key formed in a ring shape to fix the casing to the key groove, and configured to pull down a handle that is protruded to a predetermined size in both cut ends; Exhaust Control Unit. The method of claim 1, The blade is formed of a magnetic material and forms at least one or more insertion grooves on at least one of the inner and outer diameter surfaces of the casing, and the magnet is inserted and attached, so that the magnetic field generated from the magnet and the blade interfere with Exhaust control unit of exhaust system for internal combustion engine. The method of claim 5, The N pole is disposed at one end of a magnet and the S pole is disposed at the other end of an adjacent magnet so that a magnetic force line is formed in the rotational direction of the blade by the exhaust gas introduced into the casing. . The method of claim 5, A screw hole formed at a predetermined position of the sound pipe corresponding to the fixing groove of the casing; An electrostatic induction machine penetrating through the housing of the muffler and fastened to the screw hole, the current being induced by a magnetic field change according to the rotation of the blade; An amplifier configured to amplify the voltage generated in the electrostatic inductor; An A / D converter configured to convert amplitude and period of the voltage amplified by the amplifier into digital data; A control unit configured to calculate the displacement data and the flow rate data of the exhaust gas with reference to the digital data converted by the A / D converter and the voltage table stored in the memory unit; The exhaust control unit of the exhaust system for an internal combustion engine, further comprising a display unit configured to display data calculated by the control unit. The method of claim 1, The exhaust control unit of the exhaust system for an automobile internal combustion engine, characterized in that the blade is formed of an ultrasonic oscillation material.