JP2018053821A - Filter device, vehicle, monitor system for filter device, and monitor program for filter device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a filter device for efficiently reproducing a filter.SOLUTION: A filter device comprises: a ceramic-made filter which is arranged in a metal housing, and has a first end serving as an inflow side for exhaust gas of an internal combustion engine and a second end serving as an outflow side of the exhaust gas; and a microwave radiation part which is arranged between an outer side face of the filter and an inner face of the metal housing, and radiates a microwave into the filter. The filter has: a plurality of first hole parts which extend up to a first position before the second end along an inflow direction from the first end to the second end; a plurality of second hole parts which extend along the inflow direction from the second end up to a second position before the first end alternately with the first hole parts; a first sealing part which is provided between the first position and second position on an extension of the first hole parts; and a second sealing part which is provided between the second position and first end on an extension of the second hole parts and different in length in the inflow direction from the first sealing part.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a filter device, a vehicle, a filter device monitoring system, and a filter device monitoring program.

  Conventionally, a large number of passages partitioned by a porous thin wall are formed in parallel to each other, and the inlet side and the outlet side of adjacent gas passages are alternately closed by a sealing material, and the inlet side of such gas passages An exhaust gas purifying filter (filter device) having a ceramic filter body (filter) that collects unburned components in the exhaust gas when the exhaust gas introduced from the exhaust gas passes through the thin wall and combusts it. ) The sealing material on the inlet side of the gas passage is formed so as to increase in thickness from the peripheral part to the center part of the ceramic filter body (see, for example, Patent Document 1).

Japanese Utility Model Publication No. 02-063020

  In the conventional filter device, the thickness of the sealing material on the inlet side of the gas passage (the length in the gas passage direction) is set in order to suppress the central portion of the filter from being heated to a high temperature due to heating during the regeneration process. It is long in the central part where the temperature is high, and is short at the peripheral part where the temperature rise is less than that in the central part. This is because the heat capacity at the center of the filter is increased to reduce the temperature difference from the periphery.

  By the way, when performing the regeneration process by irradiating the filter with microwaves, the soot stored in the filter itself is heated by the microwaves. Therefore, even if the length of the sealing material is set as described above, the filter It is difficult to efficiently reproduce.

  Accordingly, it is an object of the present invention to provide a filter device, a vehicle, a filter device monitoring system, and a filter device monitoring program for efficiently regenerating the filter.

  A filter device according to an embodiment of the present invention includes a cylindrical metal casing, a first end that is disposed inside the metal casing and serves as an exhaust gas inflow side of an internal combustion engine, and an outflow of the exhaust gas A ceramic filter having a second end on the side, and microwave radiation that is disposed between the outer surface of the filter and the inner surface of the metal housing and radiates microwaves toward the inside of the filter A plurality of first holes extending to a first position before the second end along the inflow direction from the first end toward the second end, and the inflow direction. A plurality of second holes extending alternately with the first hole from the second end to a second position before the first end, and on the extension of the first hole , A first sealing portion provided between the first position and the second end, and the second In the extension parts, provided between said first end and said second position, and a different second sealing portion of the length in the inflow direction of the first sealing portion.

  It is possible to provide a filter device, a vehicle, a filter device monitoring system, and a filter device monitoring program for efficiently reproducing a filter.

1 is a diagram illustrating a filter device 100 according to a first embodiment. 1 is a diagram illustrating a filter device 100 according to a first embodiment. FIG. 3 is a diagram illustrating a filter 110A according to a first aspect of the first embodiment. 6 is a diagram illustrating a filter 110B according to a second aspect of the first embodiment. FIG. It is a figure which shows a mode that the bag 30 was accumulate | stored in the filter 110B shown in FIG. 6 is a diagram illustrating a filter 110C according to a third aspect of the first embodiment. FIG. 6 is a diagram illustrating a filter 110D according to a fourth aspect of the first embodiment. FIG. It is a figure which shows the filter 110E of the 5th aspect of Embodiment 1. FIG. 6 is a diagram illustrating a filter 110F according to a sixth aspect of the first embodiment. FIG. It is a figure which shows the vehicle 50 carrying the filter apparatus 100. FIG. It is a figure which shows the monitoring system of a filter apparatus containing the information processing apparatus 200 of a data center. 2 is a diagram illustrating a configuration of an information processing device 200. FIG. FIG. 12 is a diagram illustrating a flowchart illustrating processing executed by the information processing apparatus 200.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a filter device, a vehicle, a filter device monitoring system, and a filter device monitoring program according to the present invention will be described.

<Embodiment 1>
1 and 2 are diagrams showing a filter device 100 according to the first embodiment.

  The filter device 100 includes a filter 110, a cover 120, and an antenna 130. As an example, the filter device 100 is a device that purifies exhaust gas from a diesel engine, and is inserted in series into an exhaust pipe that exhausts exhaust gas from the diesel engine.

  The filter device 100 is accommodated in a metal pipe 10. The pipe 10 is a part of an exhaust pipe that exhausts exhaust gas from a diesel engine, and is an example of a cylindrical metal casing. The pipe 10 is inserted in series between the first section and the second section of the exhaust pipe that discharges exhaust gas of the diesel engine. The first section is a section closer to the diesel engine than the second section.

  The filter 110 is a cylindrical and porous ceramic member, and has a plurality of holes 111 and a plurality of holes 112. The filter 110 may be formed of, for example, a cordierite ceramic. Cordierite has the property of hardly absorbing microwaves.

  The filter 110 has one surface 110α (see FIG. 1), the other surface 110β (see FIG. 2), and a side surface 110γ. One surface 110α and the other surface 110β are both circular, and the side surface 110γ is the shape of the side surface of the cylindrical body (a shape obtained by curving a rectangle in a ring shape).

  The hole 111 extends along the Y-axis direction from the opening formed on one surface 110α of the filter 110 toward the other surface 110β, and is closed before the other surface 110β. The extending direction (Y-axis direction) of the hole 111 is equal to the direction in which the cylindrical central axis of the filter 110 extends.

  The shape of the cross section perpendicular to the extending direction of the hole 111 is, for example, a square. A cross section perpendicular to the extending direction of the hole 111 is a cross section parallel to the XZ plane. The plurality of holes 111 are arranged at positions of white squares in which a plurality of white squares and a plurality of black squares are arranged in a checkered pattern in an XZ plan view, and are formed in one surface 110α. It extends from this part to the front of the other surface 110β.

  The cross-sectional shape perpendicular to the extending direction of the hole 112 is, for example, a square. A cross section perpendicular to the extending direction of the hole 112 is a cross section parallel to the XZ plane. The plurality of holes 112 are arranged at the positions of the black squares of the plurality of white squares and the plurality of black squares arranged in a checkered pattern in the XZ plan view, and are formed in the other surface 110β. It extends from the portion to the front of one surface 110α.

  As described above, the plurality of hole portions 111 and the plurality of hole portions 112 are arranged in a nested manner, and are alternately arranged so as not to overlap or contact in three dimensions.

  Exhaust gas discharged from the first section flows into the plurality of holes 111. That is, the plurality of holes 111 are located on the inflow side into which the exhaust gas flows. Further, the plurality of holes 112 discharge the exhaust gas purified by the filter device 100 to the second section of the exhaust pipe. That is, the plurality of holes 112 are positioned on the outflow side from which the exhaust gas flows out.

  The exhaust gas that has flowed into the plurality of holes 111 passes through the porous holes of the filter 110 between the plurality of holes 111 and the plurality of holes 112 and flows out from the plurality of holes 112.

  As an example, the dimension of the hole 111 in the XZ plan view is 1 mm per side, and this is the same for the hole 112. As an example, the distance between the hole 111 and the hole 112 in the X-axis direction and the Z-axis direction is 300 μm.

  Moreover, what is necessary is just to set the diameter in the XZ planar view of the filter 110, and the length of a Y-axis direction to an appropriate value according to the displacement of a diesel engine using the filter apparatus 100, a use, or the like.

  The cover 120 is a cylindrical dielectric member, and is concentrically arranged with the columnar filter 110 in a XZ plan view at a position spaced from the side surface 110γ of the filter 110 by a predetermined distance. Further, the length of the cover 120 in the Y-axis direction is the same as that of the filter 110 as an example.

  An antenna 130 is disposed on the outer peripheral surface of the cover 120. The cover 120 is provided to arrange the antenna 130 on the outer periphery of the filter 110. The space between the inner peripheral surface of the cover 120 and the side surface 110γ of the filter 110 may be, for example, about several millimeters. Further, the inner peripheral surface of the cover 120 and the side surface 110γ of the filter 110 may be in close contact with each other.

  A plurality of antennas 130 are provided on the outer peripheral surface of the cover 120. The plurality of antennas 130 are arranged at equal intervals on the outer peripheral surface of the cover 120 in the circumferential direction and the Y-axis direction. The antenna 130 is an example of a microwave radiating unit.

  1 and 2 show an example in which four antennas 130 are arranged at 90 ° intervals in the circumferential direction of the cover 120 and four antennas 130 are arranged at equal intervals in the Y-axis direction of the cover 120 as an example. Although eight antennas 130 behind the cover 120 are not shown, the sixteen antennas 130 are arranged on the outer peripheral surface of the cover 120 at equal intervals.

  The antenna 130 is a patch antenna. The antenna 130 may be made of metal such as copper or aluminum, and can be realized with a thin metal foil. The antenna 130 is connected to a microwave power source (not shown), and radiates a microwave whose electric field is converted in the circumferential direction of the outer peripheral surface of the cover 120 or in the Y-axis direction.

  Here, in order to describe a mode in which the antenna 130 is a patch antenna that radiates microwaves, the length of one side of the square antenna 130 in plan view is an electrical length and is a half wavelength of the microwave wavelength (λ). What is necessary is just to set to ((lambda) / 2). The length of one side may be determined in consideration of the dielectric constants of the cover 120 and the filter 110. The frequency of the microwave is, for example, 2.45 GHz in an ISM (Industry-Science-Medical) band, but may be a frequency other than this. The microwave is an electromagnetic wave having a frequency of about 300 MHz to about several tens of GHz, for example.

  Here, a mode in which 16 antennas 130 are arranged on the outer peripheral surface of the cover 120 at equal intervals will be described. However, the number and positions of the antennas 130 are determined according to the size of the filter 110 and the inside of the filter 110. What is necessary is just to set suitably according to the distribution etc. of the microwave.

  Further, the antenna 130 may be any antenna that can radiate microwaves toward the inside of the filter 110, and thus is not limited to a patch antenna. As the antenna 130, a slot antenna, a dipole antenna, or a monopole antenna may be used.

  The filter device 100 according to the first embodiment removes the soot by heating it with microwaves irradiated from the antenna 130 toward the filter 110 and incinerating it. In this way, the regeneration process of the filter device 100 is performed. The filter device 100 does not burn the filter 110 itself using fuel when performing the regeneration process. Note that soot is exhaust particulates contained in the exhaust gas of a diesel engine, such as black smoke particulates or graphite particulates.

  In order to regenerate the filter device 100, it is necessary to heat the soot to about 600 ° C., but since the temperature of the exhaust gas is about 150 ° C., when the soot is heated by microwaves, When the temperature is cooled by the exhaust gas, the filter 110 cannot be regenerated as a whole, and unevenness may occur. That is, the filter device 100 may not be efficiently regenerated unless the influence of cooling by the exhaust gas is taken into consideration.

  Therefore, in the first embodiment, in order to efficiently perform the regeneration process of the filter device 100, various ideas as described below are performed. Below, illustration of the pipe 10, the cover 120, and the antenna 130 is abbreviate | omitted, and the 1st form thru | or 6th form which is a modification of the filter 110 shown in FIG. 3 is demonstrated. Further, the filters 110A to 110F described below are arranged inside the cover 120 instead of the filter 110 shown in FIG.

  FIG. 3 is a diagram illustrating a filter 110A according to the first aspect of the first embodiment. FIG. 3 shows a cross section parallel to the YZ plane passing through the cylindrical central axis of the filter 110A.

  The filter 110A has a distribution in the intensity of the microwave radiated from the antenna 130, and there is a portion 110A1 (hereinafter referred to as a low-intensity portion 110A1) where the intensity of the microwave is lower than the first threshold. In FIG. 3, the low-intensity portion 110A1 is shown in gray. The low-strength portion 110A1 is present at the central portion along the cylindrical central axis and at the outer peripheral portion.

  Here, the hole 111 included in the low-strength portion 110A1 is referred to as a hole 111A1, and the hole 111 not included in the low-strength portion 110A1 is referred to as a hole 111A2.

  In the filter 110A, the wall 113A1 on the extension of the hole 111A1 is thicker (longer) in the central axis direction (Y-axis direction) than the wall 113A2 on the extension of the hole 111A2. Further, the length (thickness) of the wall portion 113A2 in the Y-axis direction is equal to the wall portion 114A on the extension of the hole portion 112A.

  The holes 111A1 and 111A2 are examples of first holes, the walls 113A1 and 113A2 are examples of first sealing parts, the holes 112A are examples of second holes, and the walls 114A. Is an example of a second sealing portion. Note that all the holes 112A have the same length, and all the walls 114A have the same length (thickness) in the Y-axis direction.

  In this way, the ventilation resistance of the exhaust gas passing from the hole 111A1 to the adjacent hole 112A is larger than the ventilation resistance of the exhaust gas passing from the hole 111A2 to the adjacent hole 112A. The flow rate of the exhaust gas flowing through 111A1 is smaller than the flow rate of the exhaust gas flowing through hole 111A2.

  For this reason, the hole 111A1 is less likely to cause a temperature drop due to the exhaust gas than the hole 111A2, and when the soot is heated by radiating microwaves from the antenna 130 to the filter 110A, the soot is stored inside the hole 111A1. And the occurrence of a temperature difference from the heel stored inside the hole 111A2.

  Therefore, it is possible to provide a filter device 100 that can uniformly heat the soot stored in the filter 110A and efficiently regenerate the filter 110A even if the intensity of the microwave radiated from the antenna 130 is distributed. it can.

  FIG. 4 is a diagram illustrating the filter 110B according to the second aspect of the first embodiment. FIG. 4 shows a cross section parallel to the YZ plane passing through the cylindrical central axis of the filter 110B.

  The filter 110B has a distribution in the intensity of the microwave radiated from the antenna 130, and there is a portion 110B1 (hereinafter referred to as a low-intensity portion 110B1) where the intensity of the microwave is lower than the first threshold. In FIG. 4, the low-intensity portion 110B1 is shown in gray. The low-strength portion 110B1 exists in the central portion along the cylindrical central axis and the outer peripheral portion.

  Here, the hole 112 included in the low-strength portion 110B1 is referred to as a hole 112B1, and the hole 112 not included in the low-strength portion 110B1 is referred to as a hole 112B2.

  In the filter 110B, the wall 114B1 on the extension of the hole 112B1 is thicker (longer) in the central axis direction (Y-axis direction) than the wall 114B2 on the extension of the hole 112B2. Further, the length (thickness) of the wall portion 114B2 in the Y-axis direction is equal to the wall portion 113B on the extension of the hole portion 111B.

  Note that all the holes 111BB have the same length, and all the wall portions 113B have the same length (thickness) in the Y-axis direction. The hole portion 111B is an example of a first hole portion, the wall portion 113B is an example of a first sealing portion, the hole portions 112B1 and 112B2 are an example of a second hole portion, and the wall portions 114B1 and 114B2 Is an example of a second sealing portion.

  In this way, the ventilation resistance of the exhaust gas that passes from the hole 111B to the adjacent hole 112B1 is larger than the ventilation resistance of the exhaust gas that passes from the hole 111B to the adjacent hole 112B2. The flow rate of the exhaust gas flowing through the hole 111B adjacent to 112B1 is smaller than the flow rate of the exhaust gas flowing through the hole 111B adjacent to the hole 112B2.

  Therefore, the hole 111B adjacent to the hole 112B1 is less likely to cause a temperature drop due to exhaust gas than the hole 111B adjacent to the hole 112B2, and microwaves are emitted from the antenna 130 to the filter 110B to heat the soot. When this occurs, the occurrence of a temperature difference between the ridge stored in the hole 111B adjacent to the hole 112B1 and the ridge stored in the hole 111B adjacent to the hole 112B2 is suppressed.

  Therefore, it is possible to provide a filter device 100 that can uniformly heat the soot stored in the filter 110B and efficiently regenerate the filter 110B even if the intensity of the microwave radiated from the antenna 130 is distributed. it can.

  FIG. 5 is a diagram illustrating a state in which the basket 30 is accumulated in the filter 110B illustrated in FIG.

  Since the scissors 30 are stored behind the hole 111 (Y-axis positive direction side), the scissors 30 are more efficiently removed by intensively heating the back (Y-axis positive direction side) of the filter 110B. be able to.

  FIG. 6 is a diagram illustrating a filter 110C according to a third aspect of the first embodiment. FIG. 6 shows a cross section parallel to the YZ plane passing through the cylindrical central axis of the filter 110C. The filter 110C of the third mode has a configuration in which the filter 110A of the first mode and the filter 110B of the second mode are combined.

  The filter 110C has a distribution in the intensity of the microwave radiated from the antenna 130, and there is a portion 110C1 (hereinafter referred to as a low intensity portion 110C1) where the intensity of the microwave is lower than the first threshold. In FIG. 6, the low-intensity portion 110C1 is shown in gray. The low-strength portion 110C1 exists in the central portion along the cylindrical central axis and the outer peripheral portion.

  Here, the hole 111 included in the low-strength portion 110C1 is referred to as a hole 111C1, and the hole 111 that is not included in the low-strength portion 110C1 is referred to as a hole 111C2.

  Further, the hole 112 included in the low-strength portion 110C1 is referred to as a hole 112C1, and the hole 112 that is not included in the low-strength portion 110C1 is referred to as a hole 112C2.

  In the filter 110C, the wall 113C1 on the extension of the hole 111C1 is thicker (longer) in the central axis direction (Y-axis direction) than the wall 113C2 on the extension of the hole 111C2. This is the same as the walls 113A1 and 113A2 of the filter 110A of the first aspect.

  In this case, the ventilation resistance of the exhaust gas passing from the hole 111C1 to the adjacent hole 112 is larger than the ventilation resistance of the exhaust gas passing from the hole 111C2 to the adjacent hole 112. The flow rate of the exhaust gas flowing through 111C1 is smaller than the flow rate of the exhaust gas flowing through hole 111C2.

  The holes 111C1 and 111C2 are examples of first holes, and the walls 113C1 and 113C2 are examples of first sealing parts.

  Further, the filter 110C has a wall 114C1 on the extension of the hole 112C1 thicker (longer) in the central axis direction (Y-axis direction) than the wall 114C2 on the extension of the hole 112C2. Note that the length (thickness) of the wall portion 114C2 in the Y-axis direction is equal to the wall portion 113C2.

  In this way, the ventilation resistance of the exhaust gas that passes from the hole 111 to the adjacent hole 112C1 is greater than the ventilation resistance of the exhaust gas that passes from the hole 111 to the adjacent hole 112C2. The flow rate of the exhaust gas flowing through the hole 111 adjacent to 112C1 is smaller than the flow rate of the exhaust gas flowing through the hole 111 adjacent to the hole 112C2.

  The holes 112C1 and 112C2 are examples of second holes, and the walls 114C1 and 114C2 are examples of second sealing parts.

  For this reason, the hole 111C1 is less likely to cause a temperature drop due to the exhaust gas than the hole 111C2, and when the soot is heated by radiating microwaves from the antenna 130 to the filter 110C, the soot stored in the hole 111C1 And the occurrence of a temperature difference from the trough stored in the hole 111C2.

  Further, the hole 111 adjacent to the hole 112C1 is less likely to cause a temperature drop due to the exhaust gas than the hole 111 adjacent to the hole 112C2, and microwaves are emitted from the antenna 130 to the filter 110C to heat the soot. Occasionally, the occurrence of a temperature difference between the ridge stored in the hole 111 adjacent to the hole 112C1 and the ridge stored in the hole 111 adjacent to the hole 112C2 is suppressed.

  Therefore, it is possible to provide a filter device 100 that can uniformly heat the soot stored in the filter 110C and efficiently regenerate the filter 110C even if the intensity of the microwave radiated from the antenna 130 is distributed. it can.

  FIG. 7 is a diagram illustrating a filter 110D according to a fourth aspect of the first embodiment. FIG. 7 shows a cross section parallel to the YZ plane passing through the cylindrical central axis of the filter 110D.

  The filter 110D has a nonuniform length (thickness) in the central axis direction (Y-axis direction) of the wall 113D on the extension of the hole 111D. In other words, the filter 110D has wall portions 113D having different lengths (thicknesses). The filter 110D can also be understood as having holes 111 having different lengths (thicknesses).

  The hole 112D is the same as the hole 112 shown in FIG. The length (thickness) in the central axis direction (Y-axis direction) of the wall 114D on the extension of the hole 112D is uniform. This is the same as 114A shown in FIG.

  The hole portion 111D is an example of a first hole portion, the wall portion 113D is an example of a first sealing portion, the hole portion 112D is an example of a second hole portion, and the wall portion 114D is It is an example of a 2nd sealing part.

  In this way, the flow rate of the exhaust gas is reduced and the length (thickness) is short (thin) in the hole portion 111 that is in contact with the long (thickness) wall portion 113D. In the hole portion 111 in contact with the exhaust gas, the flow rate of the exhaust gas increases.

  Therefore, when the filter 110D is irradiated with microwaves by the antenna 130, the manner in which the temperature rises differs according to the length (thickness) of the hole 111, so the timing at which the soot is incinerated becomes different, When the filter 110D is regenerated, the pressure loss of the exhaust gas can be suppressed.

  Therefore, it is possible to provide the filter device 100 that can efficiently regenerate the filter 110D.

  The length (thickness) of the hole 111 (the length (thickness) of the wall 113D in the central axis direction (Y-axis direction)) may be distributed in any way in YZ plan view. What is necessary is just to determine suitably according to the flow of an actual exhaust gas, or temperature distribution.

  Further, instead of or in addition to the distribution of the length (thickness) in the central axis direction (Y-axis direction) of the wall portion 113D, the length of the wall portion 114D in the central axis direction (Y-axis direction). The thickness (thickness) may be distributed.

  FIG. 8 is a diagram illustrating a filter 110E according to the fifth aspect of the first embodiment. FIG. 8 shows a cross section parallel to the YZ plane passing through the cylindrical central axis of the filter 110E.

  The filter 110E is provided with a wall 113E in the middle of the hole 111E1, and there are a plurality of types of positions in the central axis direction (Y-axis direction) of the wall 113E. That is, there are a plurality of types of lengths in the central axis direction (Y-axis direction) of the hole 111E1.

  Since all the wall portions 113E have the same length (thickness), the hole portion 111E2 has a hole portion 111E2 on the Y axis positive direction side of the wall portion 113E on the extension of the hole portion 111E1. The hole 111E1 is an example of a first hole, the wall 113E is an example of a first sealing part, and the hole 111E2 is an example of a third hole.

  The hole 112E is the same as the hole 112 shown in FIG. The length (thickness) in the central axis direction (Y-axis direction) of the wall 114E on the extension of the hole 112E is uniform. This is the same as 114A shown in FIG. The hole 112E is an example of a second hole. The wall part 114E is an example of a second sealing part.

  Thus, since there are a plurality of types of lengths in the central axis direction (Y-axis direction) of the hole 111E1, in the hole 111E1 having a long length (thickness) as in the filter 110D shown in FIG. In the hole 111E1 having a short length (thickness), the flow rate of the exhaust gas decreases.

  Therefore, when the filter 110E is irradiated with microwaves by the antenna 130, the manner in which the temperature rises differs depending on the length (thickness) of the hole 111E1, so the timing at which the soot is incinerated becomes different, When regenerating the filter 110E, the pressure loss of the exhaust gas can be suppressed.

  Further, since the length (thickness) of the wall portion 113E is equal to each other, the heat capacity of the wall portion 113E can be reduced, and the amount of heat stored in the vicinity of the wall portion 113E is prevented from being conducted to the wall portion 113E. , Can efficiently heat the straw.

  Therefore, it is possible to provide the filter device 100 that can efficiently regenerate the filter 110E.

  Note that the position of the wall 113E may be distributed in any way in the YZ plan view. What is necessary is just to determine suitably according to the flow of an actual exhaust gas, or temperature distribution.

  FIG. 9 is a diagram illustrating a filter 110F according to a sixth aspect of the first embodiment. FIG. 9 shows a cross section parallel to the YZ plane passing through the cylindrical central axis of the filter 110F.

  The filter 110F is covered with a metal pipe 10 as shown in FIGS. Since the metal pipe 10 has high heat dissipation, the temperature of the outer periphery 110F1 of the filter 110F is likely to be lower than that of the cylindrical central axis.

  For this reason, the filter 110F distinguishes the hole portion 111 of the outer peripheral portion 110F1 by calling the hole portion 111F1 and the hole portion 111 inside the outer peripheral portion 110F1 by calling the hole portion 111F2.

  In the filter 110F, the wall 113F1 on the extension of the hole 111F1 is thicker (longer) in the central axis direction (Y-axis direction) than the wall 113F2 on the extension of the hole 111F2. The length (thickness) in the Y-axis direction of the wall 113F2 is equal to the wall 114F on the extension of the hole 112F. The hole 112F and the wall 114F are the same as the hole 112E and the wall 114E shown in FIG. 8, respectively.

  The holes 111F1 and 111F2 are examples of first holes, the walls 113F1 and 113F2 are examples of first sealing parts, and the holes 112F are examples of second holes, and walls The part 114F is an example of a second sealing part.

  In this case, the ventilation resistance of the exhaust gas passing from the hole 111F1 to the adjacent hole 112F is larger than the ventilation resistance of the exhaust gas passing from the hole 111F2 to the adjacent hole 112F. The flow rate of exhaust gas flowing through 111F1 is less than the flow rate of exhaust gas flowing through hole 111F2.

  For this reason, the hole 111F1 is less likely to cause a temperature drop due to the exhaust gas than the hole 111F2, and when the soot is heated by radiating microwaves from the antenna 130 to the filter 110F, the soot stored inside the hole 111F1 And the occurrence of a temperature difference from the soot stored inside the hole 111F2.

  Therefore, even if there is a distribution in the intensity of the microwave radiated from the antenna 130, it is possible to provide the filter device 100 that can uniformly heat the soot stored in the filter 110F and can efficiently regenerate the filter 110F. it can.

<Embodiment 2>
FIG. 10 is a diagram showing a vehicle 50 on which the filter device 100 is mounted. In the second embodiment, the maintenance of the filter device 100 (filter 110) is notified to the vehicle 50 equipped with the filter device 100 that can be efficiently regenerated in the first embodiment.

  The vehicle 50 includes an internal combustion engine 51, an exhaust pipe 52, a communication terminal 53, a notification unit 54, and a control unit 55. The filter device 100 is inserted in the middle of an exhaust pipe 52 that guides exhaust gas discharged from the internal combustion engine 51.

  The communication terminal 53 is a terminal device that performs wireless communication with an information processing apparatus of a data center, which will be described later. For example, the communication terminal 53 performs communication using a mobile phone line or road-to-vehicle communication such as a beacon. It communicates with the information processing apparatus.

  The notification unit 54 is, for example, a warning light installed on a meter panel of the vehicle 50, and when the soot has accumulated to the extent that it cannot be removed by the regeneration process while repeating the regeneration process of the filter 110, Illuminated by the controller 55.

  The control unit 55 is a computer mounted on the vehicle 50, and sends a signal representing the degree of clogging detected by a sensor that detects the degree of clogging of the filter device 100 to the information processing apparatus of the data center via the communication terminal 53. Send to.

  In addition, when the control unit 55 receives a maintenance signal indicating that maintenance of the filter device 100 is necessary from the information processing apparatus of the data center via the communication terminal 53, the control unit 55 turns on the notification unit 54.

  Here, the maintenance of the filter device 100 is necessary if the filter 110 is irradiated with microwaves from the antenna 130 to perform the regeneration processing of the filter 110 and the soot accumulated in the filter 110 is removed a plurality of times. That is, the soot remaining in the filter 110 reaches a predetermined amount or more, and the degree of clogging of the filter 110 is equal to or more than a predetermined threshold degree. In such a state, the vehicle 50 needs to enter the maintenance shop and perform a cleaning operation for disassembling and cleaning the filter 110, or a replacement operation for exchanging the filter 110 with a new product or a rebuild product.

  Note that an antenna 130 is used as a sensor for detecting the degree of clogging of the filter device 100 (filter 110). The degree of clogging of the filter 110 is detected by irradiating the filter 110 with the microwave from the antenna 130 and detecting the reflected wave or the transmitted wave. A signal representing the degree of clogging detected by the antenna 130 is transmitted by the control unit 55 to the information processing apparatus in the data center via the communication terminal 53. In this way, the degree of clogging using the antenna 130 may be detected by the control unit 55 periodically (for example, every month).

  In addition, here, as an example, a mode in which the antenna 130 used as a sensor for detecting the degree of clogging is used will be described. However, the following sensor may be used as a sensor for detecting the degree of clogging. For example, the difference between the pressure of the exhaust gas flowing into the filter 110 and the pressure of the exhaust gas discharged from the filter 110 is monitored, and clogging occurs when the pressure difference exceeds a predetermined threshold level. May be determined. In addition, when soot accumulates in the filter 110, the capacitance of the filter 110 changes due to the influence of the charge with the soot. It may be determined that clogging has occurred when such a change in capacitance is equal to or greater than a predetermined threshold level. In addition to these, a sensor that detects a change in physical quantity that may occur in the filter 110 may be used.

  FIG. 11 is a diagram showing a filter device monitoring system including an information processing apparatus 200 of a data center. The information processing apparatus 200 in the data center can perform wireless communication with the vehicle 50 via the wireless base station 80. The radio base station 80 is, for example, a radio communication base station (relay station) using a mobile phone line. The data center information processing apparatus 200 may be a server or a virtual machine (for example, a cloud computer) realized by a plurality of servers or computers.

  FIG. 12 is a diagram illustrating a configuration of the information processing apparatus 200. The information processing apparatus 200 includes a clogging degree acquisition unit 201, a determination unit 202, and a notification unit 203.

  The clogging degree acquisition unit 201 acquires a signal representing the clogging degree detected by the antenna 130 used as a sensor for detecting the clogging degree from the communication terminal 53 by wireless communication.

  The determination unit 202 determines whether the clogging degree acquired by the clogging degree acquisition unit 201 is greater than or equal to a predetermined threshold degree.

  When the determination unit 202 determines that the degree of clogging is equal to or greater than a predetermined threshold level, the notification unit 203 notifies the vehicle 50 of a maintenance signal indicating that maintenance of the filter device 100 (filter 110) is necessary. .

  FIG. 13 is a flowchart illustrating processing executed by the information processing apparatus 200. This flow is executed by the clogging degree acquisition unit 201, the determination unit 202, and the notification unit 203.

  When the clogging degree acquisition unit 201 acquires a signal indicating the clogging degree from the communication terminal 53 by wireless communication, the flow starts (start).

  The determination unit 202 determines whether the clogging degree acquired by the clogging degree acquisition unit 201 is greater than or equal to a predetermined threshold degree (step S1).

  If the determination unit 202 determines that the degree of clogging is equal to or greater than a predetermined threshold level (S1: YES), the notification unit 203 notifies the vehicle 50 of a maintenance signal (step S2).

  When the notification unit 203 notifies the maintenance signal, a series of processing ends (end).

  In step S1, if the determination unit 202 determines that the clogging degree acquired by the clogging degree acquisition unit 201 is not equal to or higher than the predetermined threshold degree (S1: NO), the process of step S2 is not performed. Then, the series of processing ends (end).

  As described above, according to the second embodiment, the degree of clogging of the filter 110 is determined by performing wireless communication with the vehicle 50 equipped with the filter device 100 that can efficiently regenerate the filter 110 as in the first embodiment. When the degree of clogging is equal to or greater than a predetermined threshold degree, a maintenance signal is notified.

  For this reason, the vehicle can be efficiently reproduced while the regeneration process is completed, and when maintenance is required, the vehicle 50 user can be surely notified that maintenance is necessary. 50, a monitoring system for the filter device 100 and a monitoring program for the filter device 100 can be provided.

The filter device, the vehicle, the filter device monitoring system, and the filter device monitoring program of the exemplary embodiment of the present invention have been described above, but the present invention is limited to the specifically disclosed embodiment. However, various modifications and changes can be made without departing from the scope of the claims.
Regarding the above embodiment, the following additional notes are disclosed.
(Appendix 1)
A ceramic filter that is disposed inside the metal housing and has a first end that becomes the exhaust gas inflow side of the internal combustion engine and a second end that becomes the outflow side of the exhaust gas;
A microwave radiating portion that is disposed between an outer surface of the filter and an inner surface of the metal housing and radiates a microwave toward the inside of the filter;
The filter is
A plurality of first holes extending to a first position before the second end along the inflow direction from the first end toward the second end;
A plurality of second holes extending alternately from the first hole to the second position before the first end from the second end along the inflow direction;
A first sealing portion provided between the first position and the second end on the extension of the first hole;
A second sealing portion provided between the second position and the first end on the extension of the second hole portion and having a length in the inflow direction different from that of the first sealing portion. Filter device.
(Appendix 2)
The length of the first sealing portion is longer than the length of the second sealing portion, or the length of the second sealing portion is longer than the length of the first sealing portion. Filter device.
(Appendix 3)
A ceramic filter that is disposed inside the metal housing and has a first end that becomes the exhaust gas inflow side of the internal combustion engine and a second end that becomes the outflow side of the exhaust gas;
A microwave radiating portion that is disposed between an outer surface of the filter and an inner surface of the metal housing and radiates a microwave toward the inside of the filter;
The filter is
A plurality of first holes extending to a first position before the second end along the inflow direction from the first end toward the second end;
A plurality of second holes extending alternately from the first hole to the second position before the first end from the second end along the inflow direction;
A third hole extending from the third position on the second end side to the second end from the first position along the inflow direction on the extension of the first hole;
A first sealing portion that seals between the first hole portion and the third hole portion;
A filter device comprising: a second sealing portion provided between the second position and the first end on an extension of the second hole portion.
(Appendix 4)
The first sealing in the second portion of the second intensity in which the intensity of the microwave is lower than the first portion of the first intensity, the intensity of the microwave radiated by the microwave radiating unit The filter device according to any one of appendices 1 to 3, wherein the length of the portion or the second sealing portion is longer.
(Appendix 5)
The first sealing portion or the second seal in the second portion heated to the second temperature lower than the first temperature by the exhaust gas than the first portion heated to the first temperature by the exhaust gas. The filter device according to any one of appendices 1 to 3, wherein the stop portion has a longer length.
(Appendix 6)
A vehicle equipped with the filter device according to any one of appendices 1 to 5.
(Appendix 7)
An internal combustion engine, a filter device that purifies exhaust gas of the internal combustion engine, a sensor that detects the degree of clogging of the filter device, a communication terminal, and a notification unit that notifies that maintenance of the filter device is necessary And a vehicle having a control unit,
A monitoring system for a filter device, including an information processing device for a data center that performs wireless communication with the communication terminal,
The filter device includes:
A ceramic filter that is disposed inside the metal housing and has a first end that becomes the exhaust gas inflow side of the internal combustion engine and a second end that becomes the outflow side of the exhaust gas;
A microwave radiating portion that is disposed between an outer surface of the filter and an inner surface of the metal housing and radiates a microwave toward the inside of the filter;
The filter is
A plurality of first holes extending to a first position before the second end along the inflow direction from the first end toward the second end;
A plurality of second holes extending alternately from the first hole to the second position before the first end from the second end along the inflow direction;
A first sealing portion provided between the first position and the second end on the extension of the first hole;
On the extension of the second hole portion, there is provided a second sealing portion provided between the second position and the first end and having a length in the inflow direction different from the first sealing portion. And
The information processing apparatus includes:
A clogging degree acquisition unit for acquiring the clogging degree detected by the sensor from the communication terminal by wireless communication;
A determination unit that determines whether the clogging degree acquired by the clogging degree acquisition unit is equal to or greater than a predetermined threshold degree;
A notification unit for notifying the vehicle that the filter device needs to be maintained when the determination unit determines that the degree of clogging is greater than or equal to a predetermined threshold level; and
When the control unit of the vehicle receives the maintenance signal via the communication terminal, the control unit of the filter device notifies the notification unit that the maintenance is necessary.
(Appendix 8)
An internal combustion engine, a filter device that purifies exhaust gas of the internal combustion engine, a sensor that detects the degree of clogging of the filter device, a communication terminal, and a notification unit that notifies that maintenance of the filter device is necessary And a filter device monitoring program executed by an information processing apparatus of a data center that performs wireless communication with the communication terminal of a vehicle having a control unit,
The filter device includes:
A ceramic filter that is disposed inside the metal housing and has a first end that becomes the exhaust gas inflow side of the internal combustion engine and a second end that becomes the outflow side of the exhaust gas;
A microwave radiating portion that is disposed between an outer surface of the filter and an inner surface of the metal housing and radiates a microwave toward the inside of the filter;
The filter is
A plurality of first holes extending to a first position before the second end along the inflow direction from the first end toward the second end;
A plurality of second holes extending alternately from the first hole to the second position before the first end from the second end along the inflow direction;
A first sealing portion provided between the first position and the second end on the extension of the first hole;
On the extension of the second hole portion, there is provided a second sealing portion provided between the second position and the first end and having a length in the inflow direction different from the first sealing portion. And
The information processing apparatus includes:
The degree of clogging detected by the sensor is acquired from the communication terminal by wireless communication,
Determining whether the acquired degree of clogging is greater than or equal to a predetermined threshold degree;
When it is determined that the degree of clogging is equal to or greater than a predetermined threshold degree, the filter device monitoring program notifies the vehicle of a maintenance signal indicating that the maintenance of the filter device is necessary.

DESCRIPTION OF SYMBOLS 10 Pipe 50 Vehicle 51 Internal combustion engine 52 Exhaust pipe 53 Communication terminal 54 Notification part 55 Control part 100 Filter apparatus 110, 110A, 110B, 110C, 110D, 110E, 110F Filter 111, 111A1, 111A2, 111B, 111C1, 111C2, 111D 111E1, 111E2, 111F1, 111F2 Hole 112, 112B1, 112B2, 112C1, 112C2, 112D, 112E, 112F Hole 113A1, 113A2, 113B, 113C1, 113C2, 113D, 113E, 113F1, 113F2 Wall 114A, 114B1, 114B2, 114C1, 114C2, 114D, 114E, 114F Wall 120 Cover 130 Antenna 200 Information processing device 201 Clogging degree acquisition unit 2 02 determination unit 203 notification unit

Claims (8)

A ceramic filter that is disposed inside the metal housing and has a first end that becomes the exhaust gas inflow side of the internal combustion engine and a second end that becomes the outflow side of the exhaust gas;
A microwave radiating portion that is disposed between an outer surface of the filter and an inner surface of the metal housing and radiates a microwave toward the inside of the filter;
The filter is
A plurality of first holes extending to a first position before the second end along the inflow direction from the first end toward the second end;
A plurality of second holes extending alternately from the first hole to the second position before the first end from the second end along the inflow direction;
A first sealing portion provided between the first position and the second end on the extension of the first hole;
A second sealing portion provided between the second position and the first end on the extension of the second hole portion and having a length in the inflow direction different from that of the first sealing portion. Filter device.   The length of the said 1st sealing part is longer than the length of the said 2nd sealing part, or the length of the said 2nd sealing part is longer than the length of the said 1st sealing part. Filter device. A ceramic filter that is disposed inside the metal housing and has a first end that becomes the exhaust gas inflow side of the internal combustion engine and a second end that becomes the outflow side of the exhaust gas;
A microwave radiating portion that is disposed between an outer surface of the filter and an inner surface of the metal housing and radiates a microwave toward the inside of the filter;
The filter is
A plurality of first holes extending to a first position before the second end along the inflow direction from the first end toward the second end;
A plurality of second holes extending alternately from the first hole to the second position before the first end from the second end along the inflow direction;
A third hole extending from the third position on the second end side to the second end from the first position along the inflow direction on the extension of the first hole;
A first sealing portion that seals between the first hole portion and the third hole portion;
A filter device comprising: a second sealing portion provided between the second position and the first end on an extension of the second hole portion.   The first sealing in the second portion of the second intensity in which the intensity of the microwave is lower than the first portion of the first intensity, the intensity of the microwave radiated by the microwave radiating portion is lower than the first portion of the first intensity. The filter device according to any one of claims 1 to 3, wherein the portion or the second sealing portion has a longer length.   The first sealing portion or the second seal in the second portion heated to the second temperature lower than the first temperature by the exhaust gas than the first portion heated to the first temperature by the exhaust gas. The filter device according to any one of claims 1 to 3, wherein the stop portion has a longer length.   A vehicle equipped with the filter device according to any one of claims 1 to 5. An internal combustion engine, a filter device that purifies exhaust gas of the internal combustion engine, a sensor that detects the degree of clogging of the filter device, a communication terminal, and a notification unit that notifies that maintenance of the filter device is necessary And a vehicle having a control unit,
A monitoring system for a filter device, including an information processing device for a data center that performs wireless communication with the communication terminal,
The filter device includes:
A ceramic filter that is disposed inside the metal housing and has a first end that becomes the exhaust gas inflow side of the internal combustion engine and a second end that becomes the outflow side of the exhaust gas;
A microwave radiating portion that is disposed between an outer surface of the filter and an inner surface of the metal housing and radiates a microwave toward the inside of the filter;
The filter is
A plurality of first holes extending to a first position before the second end along the inflow direction from the first end toward the second end;
A plurality of second holes extending alternately from the first hole to the second position before the first end from the second end along the inflow direction;
A first sealing portion provided between the first position and the second end on the extension of the first hole;
On the extension of the second hole portion, there is provided a second sealing portion provided between the second position and the first end and having a length in the inflow direction different from the first sealing portion. And
The information processing apparatus includes:
A clogging degree acquisition unit for acquiring the clogging degree detected by the sensor from the communication terminal by wireless communication;
A determination unit that determines whether the clogging degree acquired by the clogging degree acquisition unit is equal to or greater than a predetermined threshold degree;
A notification unit for notifying the vehicle that the filter device needs to be maintained when the determination unit determines that the degree of clogging is greater than or equal to a predetermined threshold level; and
When the control unit of the vehicle receives the maintenance signal via the communication terminal, the control unit of the filter device notifies the notification unit that the maintenance is necessary. An internal combustion engine, a filter device that purifies exhaust gas of the internal combustion engine, a sensor that detects the degree of clogging of the filter device, a communication terminal, and a notification unit that notifies that maintenance of the filter device is necessary And a filter device monitoring program executed by an information processing apparatus of a data center that performs wireless communication with the communication terminal of a vehicle having a control unit,
The filter device includes:
A ceramic filter that is disposed inside the metal housing and has a first end that becomes the exhaust gas inflow side of the internal combustion engine and a second end that becomes the outflow side of the exhaust gas;
A microwave radiating portion that is disposed between an outer surface of the filter and an inner surface of the metal housing and radiates a microwave toward the inside of the filter;
The filter is
A plurality of first holes extending to a first position before the second end along the inflow direction from the first end toward the second end;
A plurality of second holes extending alternately from the first hole to the second position before the first end from the second end along the inflow direction;
A first sealing portion provided between the first position and the second end on the extension of the first hole;
On the extension of the second hole portion, there is provided a second sealing portion provided between the second position and the first end and having a length in the inflow direction different from the first sealing portion. And
The information processing apparatus includes:
The degree of clogging detected by the sensor is acquired from the communication terminal by wireless communication,
Determining whether the acquired degree of clogging is greater than or equal to a predetermined threshold degree;
When it is determined that the degree of clogging is equal to or greater than a predetermined threshold degree, the filter device monitoring program notifies the vehicle of a maintenance signal indicating that the maintenance of the filter device is necessary.