• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    An attachment device for an exhaust gas purification device (19) for an internal combustion engine comprises an inlet housing provided with an inlet pipe (16), a catalyst housing (12) in which an oxidation catalyst for dosing is placed, a filter housing (13) in which a soot filter is placed , and an outflow housing (14) provided with an outlet pipe (18), and is attached to a fixed target of a vehicle at two attachment points mutually separated in the axial direction of the housing (12, 13). At one of the two attachment points, which is defined on the catalyst housing (12), the catalyst housing (12) is fixedly mounted. At the second attachment point, which is defined on the filter housing (13), the filter housing (13) is slidably attached in the axial direction.
    公开号:SE535922C2
    申请号:SE1150991
    申请日:2010-03-23
    公开日:2013-02-19
    发明作者:Toshiyuki Kamei；Hiroshi Yamamoto
    申请人:Komatsu Mfg Co Ltd；
    IPC主号:
    专利说明:

    530 935 922 2 and the housing in which the exhaust aftertreatment device is placed is thus thermally expanded. Thus, when the housing is fixedly mounted via a fastener welded to the housing, a dimensional change due to the thermal expansion cannot be accepted and the resulting thermal stress generated in the housing reduces the life of the housing.
    An object of the present invention is to provide an exhaust gas purification device for an internal combustion engine which is reliably attachable and in which generation of thermal voltage is prevented in order to extend the service life.
    Means for solving the problems According to one aspect of the invention, the attachment device for the exhaust gas purification device of an internal combustion engine comprises an exhaust after-treatment device, and a cylindrical housing in which the exhaust after-treatment device is located, in which the housing is attached to a fixed target of a vehicle and at least first and second attachment points are separated from each other in an axial direction of the housing, the housing is fixedly mounted to prevent slipping in the axial direction at the first attachment point while it is slidably attached in the axial direction at the second attachment point, the exhaust aftertreatment device is a soot filter which traps particulate matter in an exhaust gas, the first attachment point is located upstream of the solar filter, the second attachment point is located downstream of the soot filter, an fl is arranged on an outer circumference of the heel the attachment point, and reinforcement plates are attached to the fo first and second sides of the flange to be mutually opposite ns ends inserted therebetween, one of the reinforcing plates being attached to the first side near an upper part thereof, and three of the reinforcing plates being attached to the other side of the flange. the flange.
    In this aspect, the "fixed target" is an internal combustion engine or hood that covers the internal combustion engine. The term "attached to the attached target" includes being attached to the attached target via, for example, a fastener having a particular shape. The expression "the casing is fixedly mounted" means that the casing is fixedly mounted by welding, bolting or the like to prevent slipping in the axial direction. it does not matter if another exhaust aftertreatment device is placed in some other housing.
    Furthermore, any of the housings can be arranged with the attachment points.
    In the exhaust purifier attachment, it is preferred that the attachment plate be attached to the attached target of a vehicle via an attachment means at the first attachment point, the attachment means comprising a bottom plate, and a pair of support plates arranged side by side in a line on the bottom plate, on which support plates the mounting plate is fixedly mounted, and the respective facing portions of the support plates are opposite each other and are bent down on the bottom plate.
    In the exhaust device fastener, it is preferred that the fastener be attached to the attached target of a vehicle via a base plate, and a thin plate-like plate member is inserted between the bottom plate of the fastener and the base plate.
    In the attachment device for the exhaust gas purification device, it is preferred that a U-bolt around an outer circumferential surface of the housing is used at the second attachment point to attach the housing to the attached target of a vehicle.
    According to one aspect of the invention, the exhaust gas purification device is attached to the attached target of a vehicle at the two attachment points. The exhaust gas purification device is fixedly mounted at one of the two attachment points so that the exhaust gas purification device can be fixedly mounted in a reliable manner. On the other hand, the housing is slidably attached to the second attachment point so that a dimensional change in the housing due to tennis expansion can be accepted, thereby preventing the generation of thermal stress to improve the service life.
    The downstream side of the soot filter is heated to a high temperature by burning trapped particulate material to regenerate the soot filter so that the casing in which such a heated portion of the soot filter is located undergoes significant thermal expansion. In the light of the above, the first attachment point, at which the housing is fixedly mounted, is located at the upstream side of the soot filter while the second attachment point, to which the housing is slidably attached, is located at the downstream side of the soot filter, so that the thermal expansion is effective taken care of.
    At the first point, the flange provided on the housing is used to permanently mount the housing so that it is not necessary to permanently mount a mounting plate on the outer circumferential surface of the housing by welding or the like.
    Since the outer circumferential surface is prevented from deforming due to the heat of the weld, the holding force of the casing to hold the exhaust gas treatment device therein, a catalyst and the like, is not reduced as a result of such deformation, and thus these elements can be reliably retained.
    At the second attachment point, the U-bolt is used to hold the housing. Thus, while maintaining the position of the cylindrical housing in the radial direction, the housing can be reliably slidable in the axial direction.
    The fastener. to which the mounting plate is attached, comprises the pair of support plates.
    The respective facing parts of the disturbance plates are bent.
    With this arrangement, stress concentration generated idea facing the portions can be reduced to further extend the service life.
    With the plate-like element inserted between the fastening member and the base plate, the fastening member and the base plate can be fixedly mounted to each other in a reliable manner. Flatness can consequently be ensured and thus the casing can be fastened in a stable manner.
    Brief Description of the Drawings Fig. 1 is a perspective view showing a fastening device for an exhaust gas purification device in its entirety in accordance with an exemplary embodiment of the invention.
    Fig. 2 is a view of the fastening device for the exhaust gas purification device seen from an axial direction from one side to the other side.
    Fig. 3 is a view showing a primary part of the attachment device for the exhaust gas purification device.
    Fig. 4 is an exploded perspective view showing the primary part.
    Fig. 5 is an exploded perspective view showing another primary part of the exhaust purifier fastener.
    Description of the Exemplary Embodiment An exemplary embodiment of the invention will now be described with reference to the accompanying drawings. Fig. 1 is a perspective view showing an exhaust gas purification device 10 in its entirety according to the exemplary embodiment. The exhaust gas purification device 10 is intended to trap particulate matter in an exhaust gas discharged from an internal combustion engine, such as a diesel engine, mounted on a vehicle (not shown). and is attached to, for example, the internal combustion engine, a bonnet of the vehicle on which the internal combustion engine is mounted, or a vehicle frame.
    The exhaust gas purification device 10 in accordance with the exemplary embodiment is intended to be used for a construction machine, such as a hydraulic excavator, and is thus significantly larger compared to one which is intended to be used for a general transport truck. The exhaust gas cleaning device 10 comprises a number of mutually separable cylindrical elements, for example four housings 11, 12, 13 and 14.
    An inlet housing 11 is arranged at an exhaust inlet side. One end of the inlet housing 11 in the axial direction is closed by means of a side wall 15. The inlet housing 11 is provided with an inlet pipe 16 through which an exhaust gas flows into the inlet housing 11 perpendicular to the axial direction. The inlet pipe 16 is connected to an exhaust outlet pipe of a turbocharger (not shown) mounted on the internal combustion engine via a vibration-inhibiting element arranged by means of a pipe coupler (for example a bellows pipe or a universal connection) which enables an adjustable connection angle. The anti-vibration element acts to inhibit the interaction between the turbocharger and the exhaust gas purifier 10 due to their different vibrational states. The exhaust gas discharged from the turbocharger fl flows into the inflow housing 11 through the inlet pipe 16, and is directed towards the catalyst housing 12 at the side opposite the side wall 15.
    The catalyst housing 12 is cylindrical. An oxidizing catalyst (exhaust aftertreatment device) is located in the catalyst housing 12. The catalyst housing acts to oxidize a dosing fuel added to the exhaust gas, which is needed to generate heat therefrom, so that the temperature of the exhaust gas is raised to a predetermined high temperature range. The metering fuel is added to the exhaust gas by means of a metering fuel injector arranged in an exhaust pipe which connects the exhaust outlet side of the turbocharger and the exhaust inlet side of the exhaust purifier 10, and then flows into the exhaust purifier 10 together with the exhaust gas. 10 15 20 25 30 535 922 6 When the internal combustion engine consists of a diesel engine, the dosing fuel is, for example, a light oil in the same way as the motor fuel. When the dosing fuel is fed into a cylinder, a motor fuel injector is also used to feed the dosing fuel.
    A cylindrical filter housing 13 is located downstream of the catalyst housing 12.
    Implemented with the other covers 11, 12 and 14, the filter cover is the longest in the axial direction. A soot filter (the exhaust aftertreatment device) for capturing particulate matter is placed in the filter housing 13. The soot filter (a detailed description of this is omitted) is provided by means of a carrier of cordierite, silicon carbide, or the like. The exhaust gas passes through a number of through holes in the carrier along the axial direction of the carrier to be captured.
    The exhaust aftertreatment device is not limited to a soot filter to trap particulate matter but may be an exhaust aftertreatment device to reduce NOX effluent, such as, for example, a NOX reduction catalyst, a NOx storage reduction catalyst. a three-way catalyst, or any other oxidizing catalyst. Alternatively, such an exhaust aftertreatment device for reducing NO, and the exhaust aftertreatment device for trapping particulate matter may be arranged in series for use in combination.
    When only the NO gas exhaust aftertreatment device is used, the oxidizing catalyst to oxidize the dosing fuel used in this exemplary embodiment is omitted.
    In other words, the oxidizing catalyst and the soot filter are used in pairs. The heat of the exhaust gas heated by the oxidizing catalyst is used to burn the particulate matter trapped by the soot filter to regenerate the soot filter. For the need for such regeneration, the oxidizing catalyst is provided in the exemplary embodiment. The soot filter can alternatively be fastened together with such an oxidizing catalyst. If this is the case, as long as the soot filter is used alone, it is not necessary to provide a separate oxidizing catalyst.
    An outlet housing 14 is located downstream of the filter housing 13. The other end of the outlet housing 14 in the axial direction is closed by means of a side wall 17. The outlet housing 14 is provided with an outlet pipe 18 for discharging an outlet 3535 922 7 gas. The outlet pipe 18 projects vertically and has one end to which a damping cutter (not shown) is connected. In this exemplary embodiment, the exhaust gas purifier 10 also functions as a muffler so that a separate muffler is not necessary and thus the muffler can be attached directly to the exhaust purifier 10.
    When regeneration of the soot filter is not necessary, there is no dosing fuel in the exhaust gas flowing from the inlet housing 11 into the catalyst housing 12.
    The exhaust gas simply passes through the oxidizing catalyst to flow into the soot filter inside the filter housing 13 and thus the particulate material is trapped in the exhaust gas to purify the exhaust gas. The purified exhaust gas is directed into the outlet housing 14 at the downstream side and discharged from the outlet housing 14 through the outlet pipe 18 and the damping cutter.
    When the soot filter is filled with particulate material to be clogged, a dosing fuel is injected into the exhaust gas by means of the fuel injector. The fuel in the exhaust gas is oxidized through the oxidizing catalyst inside the catalyst housing 12 to generate heat. so that the exhaust gas passing through the oxidizing catalyst is heated to or higher than a predetermined temperature. i.e. a temperature to regenerate the soot filter. When the exhaust gas heated to or above the regeneration temperature flows into the soot filter at the downstream side, the particulate matter collected on the soot filter burns with the heat of the exhaust gas to become harmless and discharged. The particulate matter is removed from the soot filter so that the soot filter is regenerated to its original state.
    When the temperature of the exhaust gas has reached or exceeds the temperature for regeneration without the dosing fuel being fed, the particulate matter trapped by the soot filter is burned with the heat of the exhaust gas regardless of how much the soot filter is clogged, so that the soot filter regenerates by itself without any dosing fuel.
    Fig. 2 is a view of the exhaust gas purifying device 10 seen in the axial direction from one side to the other side. Referring to Figs. 1 and 2, the flanges are arranged around openings of the housings 11 to 14 at connections therebetween, each of the flanges 19 extending one row outwards and being circumferentially continuous. These flanges 19 are arranged in one piece with the housings 11 to 14 by grouting on cylindrical bodies which form the outer circumferential surface of the housings 11 to 14. The flanges 19 of the housings 11 to 14 are abutted against each other and then the housings 11 to 14 are connected together by using bolts 21 inserted through the respective bolt holes 20 of the grooves 19 and nuts 22 are screwed thereon.
    Each shaft 19 has a thickness identical to that of the cylindrical body and thus does not have sufficient stability. In view of the above, in accordance with this exemplary embodiment, a plurality of reinforcing plates 23 are provided on each flange 19 along the entire periphery for reinforcement.
    Each reinforcing plate 23 is in an arcuate shape having a length of one third of the circumference of the flanges 19. The reinforcing plates 23 are arranged in a circle to reinforce each end 19 over the entire periphery. Each reinforcement plate 23 is similarly provided with bolt holes 24 so that the bolts 21 are inserted through the respective bolt holes 20 and 24.
    The positions of opposite reinforcing plates 23, between which an abutting pair 19 are inserted, are circumferentially offset from each other.
    Interfaces 25 between circumferentially adjacent reinforcing plates 23 are thus not opposite each other with the pair fl ends 19 inserted therebetween. If the interfaces 25 are mutually opposite each other in the axial direction with the pair fl ends 19 inserted therebetween, a sealing contact pressure is generated in the flanges 19 by tightening the bolts and nuts at portions corresponding to the interfaces 25, so that leakage of the exhaust gas is likely occurs. Accordingly, in order to equalize the sealing contact pressure, the reinforcing plates 23 are provided as described in this exemplary embodiment.
    A detailed description will be made below regarding an attachment structure for the exhaust gas purification device 10. The exhaust gas purification device 10 is attached at two points, i.e. first and second points, separated from each other in the axial direction by the use of mounting plates 30 and a pair of U-bolts 50, respectively.
    The mounting plates 30, which are used at the first mounting point, are fixedly mounted to the end 19 of the catalyst housing 12 at an exhaust inlet side, as shown in Figs. 3 and Fig. 4. This shaft 19 of the catalyst housing 12 is provided with only one of the reinforcing plates 23, which are located at an upper portion 10 of the shaft, while the mounting plates 30 are located at positions corresponding to the other two respective reinforcement plates 23.
    Accordingly, each mounting plate 30 includes a mounting portion 31 formed along the outer circumferential surface of the catalyst housing 12. The mounting portion 31 is provided with a plurality of bolt holes 32 at positions along an arcuate shape. The bolts 21 are inserted through the respective bolt holes 32 and then the nuts 22 are screwed onto the respective bolts 21, whereby the fastening plates 30 are clamped together with the end 19.
    The mounting plates 30 can thus be used to permanently mount the exhaust gas purifying device 10 while acting as the reinforcement plates 23 for connecting the catalyst housing 12 to the inflow housing 11. Each mounting plate 30 also comprises a mounting part 31 formed integrally with the mounting portion 31. formed between a pair of edges 34 and 35 which intersect at a substantially right angle. The fastening part 33 is provided with a pair of bolt holes 37 along the lower edge 34. The thickness of the fastening plates 30 is greater than that of the reinforcing plates 23 so that the fastening plates 30 have a fastening strength which is sufficient not only to reinforce the shaft 19, but also for to attach the exhaust gas purification device 10.
    These fastening plates 30 are bolted to a first fastening member 40.
    The first fastener 40 comprises a base plate 41 having a rectangular shape in plan view, a pair of support plates 42 arranged side by side in a line along a long side of the base plate 41, and projections 43 abutting vertical surfaces of the support plates 42 and an upper surface of the base plate 41.
    A pair of plate elements 44 formed as rectangular thin plates are arranged parallel to a lower surface of the bottom plate 41 along a short side of the bottom plate 41. The bottom plate 41 is also provided with bolt holes 45 (Fig. 3), which also penetrate through the respective plate elements 44. Nuts corresponding to the bolt holes 45 are fixedly mounted on the upper surface of the base plate 41.
    Support plates 42 are provided with bolt holes 47 corresponding to the bolt holes 37 of the mounting plates 30. Nuts 48 corresponding to the bolt holes 47 are fixedly mounted on the surfaces of the support plates 42 opposite the surfaces on which the mounting plates 30 are located. The mounting plates 30 are brought into abutment with the respective support plates 42 10 15 20 25 30 535 922 10 and then bolts 49 are inserted through the respective bolt holes 37 and 47 to be screwed into the respective nuts 48 and thereby fix the plates 30 and 42. Since the bolt holes are arranged substantially in a line at the same level, an adjustable margin is ensured for a position displacement in the up-and-bottom direction in the fram shape developed when the mounting plates 30 are bolted to the respective support plates 42.
    The upper surface of these support plates 42, which are formed along the contour of the catalyst housing 12, are inclined downwards to be closer to each other. Portions 42A facing each other of the support plates 42 are bent down on the base plate 41. Since adjacent portions 42A facing each other of the support plates 42 are rounded, it is possible to reduce stress generated especially in the portions 42A facing each other when the exhaust gas purifier 10 is supported via the mounting plates 30. , so that the service life can be extended.
    The base plate 41 of the first fastener 40 is mounted on a base plate 70 near one end of the base plate 70 via the plate members 44, as shown in Fig. 1. Bolts (not shown) are then passed through the respective bolt holes 45 from their lower side of the base plate. 70 to be screwed into the respective nuts 46 and thereby fix the base plate 41 to the base plate 70. Bolts (not shown) are passed through the respective bolt holes 71 formed in the base plate 71 at corners for fixed mounting of the base plate 71 to, for example, a upper part of the internal combustion engine (for example an upper part of a flywheel housing of a diesel engine).
    The flange 19 of the catalyst housing 12 is used to permanently mount the exhaust gas purifier 10 to the internal combustion engine at the first point via the mounting plates 30, the first mounting member 40 and the base plate 70.
    With this arrangement, compared to fixed mounting by U-bolts only, the strength can be improved so that the position of the exhaust gas cleaning device 10 is not displaced during operation of the building machine. The exemplary embodiment can thus achieve a more reliable fixation.
    Since the fastener is welded directly to the catalyst housing 12 and the filter housing 13 but is fixedly mounted to the end by using the mounting plates 30, no margin is required for welding the housings 12 and 13. An increase in the size of the exhaust gas purifier 10 in the axial direction can lunda is prevented. In addition, avoiding welding results in avoiding a slight thermal deformation in the outer peripheral surface of each of the housings 12 and 13 so that the oxidizing catalyst and the carbon salt placed therein can be kept in a stable condition. way. Furthermore, since welding is avoided, the outer peripheral surface of each of the housings 12 and 13 need not be partially resistant to thermal deformation caused during welding. Thus, complications of the structure of each of the housings 12 and 13 can be prevented.
    The plate members 44 inserted between the first fastener 40 and the base plate 70 enable the first fastener 40 and the base plate 70 to advantageously come into contact with each other to ensure the flatness of the exhaust purifier 10 so that the exhaust purifier 10 can be secured in a preferred manner. position.
    The pair of U-bolts 50, which are used at the second fastening position, are in contrast arranged around the filter housing 13 near the outflow end to hold the filter housing 13. Both ends of each U-bolt 50 are inserted through a second fastening member 60 and are attached to it. the second fastener 60 using nuts 51 and 52, the nuts 51 and 52 being previously screwed onto the U-bolts 50 and the nuts 52 being screwed onto the U-bolts 50 after insertion.
    The second fastening member 60 comprises a bottom plate 61 having vertical portions 62 at both ends, a curved plate 64 connecting the support members 63, arranged at upper ends of the vertical portion 62, to each other, projections 65 abutting the support members 63 and the vertical the portions 62, and support plates 66 supporting surfaces facing each other of the vertical portions 62 and a rear surface of the curved plate.
    A pair of plate members 67 are disposed on a lower surface of the base plate 61 in the same manner as the bottom plate 41 of the first fastener 40. The bottom plate 61 is provided with a plurality of bolt holes (not shown) which also penetrate through the plate member 67. Nuts 68 corresponding to the bolt holes are fixedly mounted on the bottom plate 61. Each of the two ends of the curved plate 64 is provided with a pair of bolt holes 69, which also penetrate through the support part 63. The ends of the U-bolts 50 are inserted through the respective the bolt holes.
    The bottom plate 61 of the second fastener 60 is mounted on the base plate 70 near the other end of the base plate 70 via the plate elements 67. Bolts 10 (not shown) are then inserted through the respective bolt holes from the lower side of the base plate. the base plate 70 to be screwed into the respective nuts 68 and thereby fixedly mounted the base plate 61 to the base plate 70.
    Thus, by using U-bolts 50, the exhaust gas purifier 10 is attached to the internal combustion engine at the second point via the second fastener 60 and the base plate 70. The U-bolts 50 act to press the filter housing 13, in the radial direction, against the second fastener 60 to hold the filter housing 13, so that the position of the filter housing 13 is limited in the radial direction while it is not completely limited in the axial direction. The filter housing 13 is thus slidably attached in the axial direction.
    With the above-mentioned arrangement of the exemplary embodiment, although in particular the exhaust effluent end of the filter housing 13 is heated to a higher temperature with combustion heat generated by burning particulate matter to regenerate the carbon filter inside the filter housing 13 and thus the thermal expansion direction, this end of the filter housing 13, which is slidably attached in the axial direction by the use of U-bolts 50, can absorb a dimensional change as a result of the thermal expansion, so that damage and a reduction in service life due to thermal voltage can be prevented.
    In the exhaust gas purification device 10, attached as described above, when ash or the like, which can not be eliminated even by the combustion to regenerate the soot filter, is sampled in the soot filter, it is necessary to remove the filter casing 13 from the exhaust gas purification device 10 and again insert the filter gas purifier 13. 10 after cleaning, or replace the filter housing 13 with the soot filter placed therein.
    To replace the filter housing 13, first the bolts 49 of the first fastener 40 are removed from the respective nuts 48 and the U-bolts 50 and the nuts 52 are removed from the second fastener 60. The exhaust purifier 10 is then removed from the internal combustion engine. The catalyst housing 12 and the filter housing 13 are separated from each other. The housings 12 and 13 can be separated by removing the bolts 21 and nuts 22 used to connect the ends 19 of the housings 12 and 13. The outflow housing 14 is separated in the same way to remove the filter housing 13. Thereafter, the filter housing 13 is opened to remove the filter housing 13. 535 922 13 carry out the necessary work. The housings 11, 12, 13 and 14 can be mounted in reverse order by the one described above. Although the best arrangements, methods and the like for carrying out the invention have been described above, the invention is not limited thereto. In other words. although the invention has been described in detail and illustrated mainly in relation to specific embodiments, one skilled in the art may make various modifications in form, quantity or other details of the above-described embodiment without departing from the technical idea or object of the invention.
    Descriptions of form and quantity or the like as above are accordingly given by way of example to enable a simple understanding of the invention, and do not limit the invention. Descriptions of names of components with various limitations in form, quantity or the like which are partially or completely removed are included in the invention. Although the catalyst housing 12 is fixedly mounted via the mounting plates 30 while the filter housing is slidably attached using U-bolts 50 in the exemplary embodiment, it can be determined which of the housings 11 to 14 are to be attached and how the housings are to be attached based on the type of exhaust aftertreatment device located therein.
    As long as the exhaust gas cleaning device is fixedly mounted at one end of the attachment points defined in the longitudinal direction and at the same time is slidably attached to the other attachment point so that thermal expansion is acceptable, the housings can be attached in any way without departing from the scope of the invention. In other words, the fasteners 40 can, for example, be welded directly to the catalyst housing 12 without departing from the scope of the invention.
    When the U-bolts 50 are used, a metal band or the like can be used to attach the filter housing 13 to the second fastening member 60 or, alternatively, a horizontal fastening part, which is pre-welded to the filter housing 13, and one end of the second fastening member 60 can be clamped together. vertically. In which case the sliding in the axial direction is acceptable with the sliding in the radial direction being throttled. Although the mounting plates 30 and the U-bolts 50 are attached to the first and second fasteners 40 and 60, respectively, and the first and second fasteners 40 and 60 are attached to a fixed target of a vehicle. such as an internal combustion engine, a hood covering the internal combustion engine and a vehicle frame, via the base plate 70 in the exemplary embodiment, the mounting plates 30 and the U-bolts 50 can be attached directly to the fixed target of a vehicle without using the first and second fasteners 40 and 60 and the base plate 70 without departing from the scope of the opening.
    Industrial Applicability The invention is particularly effectively useful as an exhaust gas purifier for an internal combustion engine used in a construction machine, an agricultural machine, a dumper, an electric generator or the like.
    Explanation of reference numerals 10 ... exhaust gas cleaning device, 11, 12, 13, and 14 ... housing, 19 ... flange, 30.. .fastening plate, 40.. .first fasteners, 44 and 67.. . plate element, 41 ... base plate, 42 ... support plate, 42A ... part facing, 50 ... U-bolt, 60 ... other fasteners, 70 ... base plate.
    权利要求:
    Claims (4)
    [1]
    An exhaust combustion device attachment device (10), comprising an exhaust aftertreatment device, and a cylindrical housing (13) in which the exhaust aftertreatment device is located, the housing (13) being attached to a fixed target of a vehicle and at least first and second attachment points are spaced apart in an axial direction of the housing (13), characterized in that the housing (13) is fixedly mounted to prevent sliding in the axial direction at the first attachment point while being slidably attached in the axial direction at the second attachment point, the exhaust aftertreatment device is a soot filter which traps particulate matter in an exhaust gas, the first attachment point is located upstream of the soot filter, the second attachment point is located downstream of the soot filter, a flange (19) arranged on an outer circumference of the housing (13) is attached to the attached target of a vehicle via an attachment plate (30) at the first attachment point, and reinforcing plates (23) are attached to f first and second sides of the flange (19) to be mutually opposite to the flange (19) inserted therebetween, one of the reinforcing plates (23) being attached to the first side near an upper part thereof, the mounting plate (30) being attached to the first side of the flange (19), and three of the reinforcing plates (23) are attached to the second side of the flange (19).
    [2]
    Attachment device for an exhaust gas cleaning device (10) according to claim 1, wherein the attachment plate (30) is attached to the attached target of a vehicle via an attachment member (40) at the first attachment point, the attachment means (40) comprises a bottom plate (41) , and a pair of support plates (42) arranged side by side in a line on the bottom plate (41), on which support plates (42) the mounting plate (30) is fixedly mounted, and respective facing portions (42A) of the support plates (42) are opposite each other and are bent down on the bottom plate (41).
    [3]
    An attachment device for an exhaust gas cleaning device (10) according to claim 2, wherein the attachment means (40) is attached to the attached target of a vehicle via a base plate (70), and a thin plate-like plate element (44) is inserted between the base plate (41 ) of the fastener (40) and the base plate (70).
    [4]
    An exhaust purifier attachment device (10) according to any one of claims 1-3, wherein a U-bolt (50) about an outer circumferential surface of the housing (13) is used at the second attachment point to secure the housing (13) to the attach the target to a vehicle so that the housing (13) is limited in the radial direction by means of the U-bolt (50).
    类似技术:
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    同族专利:
    公开号 | 公开日
    US8943813B2|2015-02-03|
    CN102365431A|2012-02-29|
    JP4972228B2|2012-07-11|
    WO2010110242A1|2010-09-30|
    US20120011833A1|2012-01-19|
    SE1150991A1|2011-10-26|
    JPWO2010110242A1|2012-09-27|
    CN102365431B|2013-01-02|
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    法律状态:
    2014-11-04| NUG| Patent has lapsed|
    优先权:
    申请号 | 申请日 | 专利标题
    JP2009076698|2009-03-26|
    PCT/JP2010/054932|WO2010110242A1|2009-03-26|2010-03-23|Exhaust gas purifying device for internal combustion engine|
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