WO2018214791A1 - Piège à particules de gaz résiduaire pour automobile - Google Patents

Piège à particules de gaz résiduaire pour automobile Download PDF

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Publication number
WO2018214791A1
WO2018214791A1 PCT/CN2018/087227 CN2018087227W WO2018214791A1 WO 2018214791 A1 WO2018214791 A1 WO 2018214791A1 CN 2018087227 W CN2018087227 W CN 2018087227W WO 2018214791 A1 WO2018214791 A1 WO 2018214791A1
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WO
WIPO (PCT)
Prior art keywords
outer casing
filter element
inner cavity
gasket
protective member
Prior art date
Application number
PCT/CN2018/087227
Other languages
English (en)
Chinese (zh)
Inventor
黄毅
Original Assignee
黄毅
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 黄毅 filed Critical 黄毅
Publication of WO2018214791A1 publication Critical patent/WO2018214791A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/0211—Arrangements for mounting filtering elements in housing, e.g. with means for compensating thermal expansion or vibration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/022—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles

Definitions

  • the invention belongs to the technical field of automobiles, and relates to a device for collecting fine particles in an exhaust gas discharged after an automobile engine is operated as a work.
  • the fine particles in the exhaust gas emitted by the automobile engine after work are an important cause of haze generation. Before being discharged into the atmosphere, it needs to be collected by a particle trap. However, the pore size of the filter element in the particle trap is often blocked by fine particles and lost. Efficacy, therefore requires periodic recovery activity, the current commonly used technology is electric heating, that is, the filter element is sealed in the particle trap by welding, etc. When the car computer detects that the particle trap is blocked to a value, the electric heating system is activated. The particle trap is heated to about 600 degrees, and the particulate matter is oxidized to a gas discharge to achieve the purpose of unblocking pore recovery activity.
  • the Chinese patent No. 200720148310.3 discloses a detachable particle trap.
  • the disadvantage is that the filter element is fixed on the flange and is not easy to remove. When placed in the cleaning liquid, the maintenance effect is formed due to excessive impurities.
  • the secondary pollution reduces the service life; only fixing the entire filter element through one end will form an imbalance of force, which will damage the filter element and reduce the service life; the processing technology of the inner casing is required to be high. In reality, the outer casing gap is too large.
  • the technical problem to be solved by the present invention is to provide an inexpensive automobile exhaust gas particle trap having a longer service life than existing products.
  • a further technical problem to be solved by the present invention is that it is convenient to install and remove the filter element and has a protective member for protecting the filter element while being able to protect the automobile exhaust gas particle trap without lowering the temperature of the air flow.
  • the filter element can be taken out, the clogging of different parts of the filter element can be observed, and the maintenance method can be taken in a targeted manner, and a plurality of existing technologies can be used for maintenance, so that a better recovery effect can be obtained, thereby prolonging the service life of the filter element. This extends the life of the particle trap.
  • the automobile exhaust gas particle trap of the invention is suitable for a car whose fuel is gasoline, diesel, ethanol, natural gas, etc., which requires power generation of an engine, including a filter element, a gasket and a disassembled outer casing, and the gasket is wrapped along the gas flow direction of the filter element.
  • the outer wall of the filter element, the gasket and the filter element are placed together in the inner cavity of the outer casing, and are characterized in that one or more filter elements are installed in the inner cavity of the outer casing, and the outer side of the filter element or the filter element is provided with protective members at both ends, and the outer casing along the gas flow direction
  • the narrowed portion at both ends of the inner cavity fixes the filter element and the gasket.
  • one or more filter elements can be installed in the cavity of the outer casing.
  • the filter elements can be directly contacted, or the inner openings of the two ends described above can be installed between the filter elements and one end of the near filter element port is A protective layer of a convex layer or a bump facing the center of the cross section of the filter element, the outer casing may use a two-stage or more-piece outer casing. This is because the size of the particles in the exhaust gas is different due to fuel, engine, road conditions, etc., and the specific size of the filter cartridge of different specifications is captured, and the capturing effect is good and the maintenance period is long, that is, the service life is prolonged.
  • the narrowed portion of the inner cavity of the outer casing is a concave or concave portion inward of the casing
  • the concave layer can be understood as a continuous concave block connection, or the concave block can be understood as
  • the concave layer may have one or more concave portions; or a convex layer or a convex portion formed by externally casting or welding, the convex layer may be understood as a continuous bump connection, or the convex block may be It is understood to be a segment of the convex layer, which may be one or more; or the inner wall of the cone at both ends of the outer casing.
  • the automobile exhaust gas particle trap of the present invention can reduce the impact and vibration of the automobile outside the filter element, and has the function of protecting the filter element, and the pad also has the function of heat preservation and fixing the filter element.
  • the damage of the gasket is mainly due to the erosion of the high-temperature and high-pressure exhaust gas flow and the decrease of the adhesion between the components after the thermal expansion of the gasket, so that the components are scattered, so that the protective member is installed at the gasket port to protect the gasket from the airflow and form.
  • the confined space of the gasket is of great significance for extending the life of the gasket.
  • the protective component is an empty solid inside the opening at both ends, the inner space is filled with a filter element, the inner wall of which surrounds the filter element, the outer casing contacts the inner wall of the outer casing, one end contacts the narrowed portion of the inner cavity of the outer casing, one end contacts the gasket; or the protective component is open at both ends and
  • One end of the filter element port has a solid layer of convex or convex toward the center of the cross section of the filter element, and the inner space is filled with a filter element, the inner wall of which surrounds the filter element, the outer casing contacts the inner wall of the outer casing, one end contacts the narrowed portion of the inner cavity of the outer casing, and one end contacts the gasket.
  • the protective member may be metal or non-metal; further, the protective member may be a metal sheet, a wire mesh, a non-metal sheet, a non-metal mesh, etc., since the gasket can be assembled in the original shape, the protective member of the gasket Can be installed to extend the life of the car exhaust particle trap by extending the life of the pad.
  • the protective member of the automobile exhaust gas particle trap of the present invention has a sealability against gas flow. Due to the different shape of the filter elements of different models, there are cylinders, cuboids, triangles and irregular geometry. In order to realize the protection function, the specific shape is determined according to the specific shape of the filter element to realize the function of wrapping the end of the filter element.
  • the protective member may be a glue or lacquer that seals the gas at one or both ends of the liner.
  • the glue or lacquer can protect the gasket from airflow, while the filter core, the inner wall of the outer casing, and the inner wall of the outer casing are narrowed together. Forming a closed space to the liner, thereby protecting the liner from thermal expansion, this solution requires high shell processing precision. At the same time, the high precision of the outer casing processing process can meet the sealing performance of the gasket space, and the protective component can be installed only at the inlet end of the filter element.
  • the filter element is fixed without relying on the elastic force of the pad to restore the original shape, that is, the pad can be assembled in a normal state without compression, so that no pressure equipment is required to assist the assembly, and it is convenient to assemble by hand, so that the assembly difficulty is minimized, and the assembly is made.
  • the scrap rate is minimized; and the protective parts can be installed and installed easily; if the filter cartridge is only needed to be replaced after the filter is discarded, the entire gasket is replaced, and the same gasket is replaced after the scrap is replaced without replacing the entire device.
  • Reduce the cost of use can directly repair the filter, eliminate secondary pollution and damage, improve the maintenance effect, extend its service life; no need to install a detection plugging system and heating combustion system, reducing production costs. Maintenance is of great importance to the service life of the car.
  • the above-mentioned multiple benefits will prompt the auto repair shops to include the maintenance of the particle trap in the daily maintenance subject, which is of great significance to the realistic environment of air pollution.
  • Figure 1 is a cross-sectional view of the filter element in the direction of the air flow.
  • Figure 2 is a cross-sectional view of the filter cartridge port of Figure 1 perpendicular to the direction of the gas flow.
  • Figure 3 is a cross-sectional view of the filter cartridge port of Figure 1 perpendicular to the direction of the gas flow.
  • Figure 4 is a cross-sectional view of the filter element in the direction of the air flow.
  • Figure 5 is a cross-sectional view of the filter cartridge port of Figure 4 perpendicular to the direction of the gas flow.
  • Figure 6 is a cross-sectional view of the filter cartridge port of Figure 4 perpendicular to the direction of the gas flow.
  • Fig. 7 and Fig. 8 are schematic views showing the installation of a device in which the narrowed portion of the inner cavity of the outer casing is a concave layer and the protective member has a convex layer.
  • FIG. 9 and FIG. 10 are schematic diagrams showing the installation of a device in which the narrowed portion of the inner cavity of the outer casing is a concave layer and the protective member has no convex layer.
  • Fig. 11 and Fig. 12 are schematic diagrams showing the installation of a device in which the narrowed portion of the inner cavity of the outer casing is a concave layer and the protective member is coated with glue or lacquer.
  • Fig. 13 is a schematic view showing the apparatus in which the narrowed portion of the inner cavity of the outer casing is a convex piece and the protective member has a convex layer.
  • Fig. 14 is a schematic view showing the apparatus in which the narrowed portion of the inner cavity of the outer casing is a convex layer and the protective member has no convex layer.
  • Figure 15 is a schematic view of a device in which the narrowed portion of the inner casing is a convex layer and the protective member is coated with glue or lacquer.
  • Fig. 16 is a schematic view showing the device in which the narrowed portion of the inner cavity of the outer casing is an outwardly narrowed inner wall of the cone at both ends of the outer casing, and the solid portion of the protective member has a convex layer.
  • Fig. 17 is a schematic view showing the apparatus for solidifying the protective member in which the narrowed portion of the inner casing is a concave layer and the convex layer is attached only to the filter inlet port.
  • Fig. 18 is a schematic view showing the device in which the narrowed portion of the inner cavity of the casing is a convex layer, and the solid of the protective member having no convex layer is installed only at the inlet port of the filter element.
  • Figure 19 is a view showing a preferred embodiment of the apparatus in which the narrowed portion of the inner casing is a concave layer, the protective element is provided with protective members at both ends, and the protective member has a convex solid layer.
  • Figure 20 is a schematic view of the device with two filter elements placed in the inner cavity of the housing
  • FIG. 7 to FIG. 20 the airflow flows from the left end to the right end, that is, the left end of the figure is the intake end, and the right end of the figure is the air outlet end.
  • the filter element 1 is a cross-sectional view of the filter element 1 not mounted in the outer casing in the direction of the air flow, the filter element 1 is a cylinder or a square body, and the intake port 2 and the air outlet port 3 are wrapped with a protective member 4,
  • Figure 2 is a cross-sectional view of the port of the filter element 1 of Figure 1 in the airflow direction without the housing, the protective member is a convex solid 4 of the port facing the center of the cross section of the filter element 1, the filter element 1 of the figure is a cylinder,
  • Fig. 3 is a cross-sectional view of the port of the filter element 1 of Fig. 1 which is not mounted in the outer casing in the direction of the air flow.
  • the protective member is a bump solid 4 having a port facing the center of the cross section of the filter element 1, and the filter element 1 of this figure is a square body.
  • the solid 4 is a metal material such as a stainless steel sheet or a sealed metal mesh, or a non-metallic material capable of withstanding the high temperature and cavitation of the catalytic converter.
  • the gasket 5 is behind the protective member 4.
  • the protective member 4 of the solution can contact the narrowed portion of the inner cavity of the outer casing, and the narrowed portion of the inner cavity of the outer casing can be divided into a concave layer or a concave block inward of the casing, casting or welding of the inner cavity of the outer casing, and the like.
  • the filter element 4 is a cross-sectional view of the filter element 1 not mounted in the outer casing in the direction of the air flow, the filter element 1 is a cylinder or a square body, and the air inlet port 2 and the air outlet port 3 are wrapped with a protective member 4, and the protective member is a sealed wire mesh.
  • the protective member 4 encloses only the outer wall of the filter element 1, and the gasket 5 is behind the protective member 4.
  • FIG. 5 is a protective member 4 enclosing the outer wall of the port when the filter element 1 of FIG. 4 is a cylinder, and the gasket 5 is behind the protective member 4.
  • Fig. 6 is a view showing the protective member 4 enclosing the outer wall of the port when the filter element 1 of Fig. 4 is a square body.
  • the shape of the protective member 4 is determined in accordance with the shape of the filter element and the shape of the inner cavity of the outer casing.
  • the gasket 5 is behind the protective member 4.
  • Figure 7 is a filter element 1 encasing the protective member 4 and the gasket 5 which is placed in the inner cavity of the outer casing 6, which is composed of a member 61 and a member 62 which are detachably separable and connected, and which are formed by a flange 8 and a bolt.
  • Fig. 7 is a state in which the member 61 and the member 62 are separated
  • Fig. 8 is a state in which the member 61 and the member 62 are connected by a flange 8 and a bolt
  • the protective member is a sealed wire mesh.
  • Figure 8 illustrates the protective member 4 contacting the housing recess 7 in the narrowed portion of the housing.
  • the member 61 and the member 62 respectively have a concave layer.
  • the protective member 4, the outer wall of the filter element 1, and the inner wall of the inner chamber of the housing collectively form a seal for the gasket 5. space.
  • the size and shape of the outer casing members 61 and 62 may be the same or different, specifically in accordance with the overall vehicle.
  • Figure 9 is a filter element 1 encasing the protective member 4 and the gasket 5 which is placed in the inner cavity of the outer casing 6, which is composed of a flange 61 and a bolt by a member 61 and a member 62 which are detachably separable and connected.
  • Fig. 9 is a state in which the member 61 and the member 62 are separated
  • Fig. 10 is a state in which the member 61 and the member 62 are connected by a flange 8 and a bolt, and the protective member is a sealed wire mesh.
  • Fig. 10 illustrates that the protective member 4 is in contact with the recessed portion 7 of the narrowed portion of the inner casing of the outer casing.
  • the protective member 4, the outer wall of the filter element 1, and the inner wall of the inner casing of the outer casing collectively form a sealed space for the gasket 5.
  • Figure 11 is a filter cartridge 1 wrapped with a gasket 5 which is placed in the inner cavity of the outer casing 6.
  • the outer casing 6 is composed of a member 61 and a member 62 which are detachably separable and connectable, and which are formed by a flange 8 and a bolt. 61 and member 62 are separated, the protective member is a sealed wire mesh, and Fig. 12 is a state in which the member 61 and the member 62 are connected by a flange 8 and a bolt.
  • Figure 12 illustrates that the filter element 1 and the gasket 5 are in contact with the recessed portion 7 of the narrowed portion of the inner cavity of the casing, and the seal of the gasket 5 is formed by the filter element 1, the inner wall of the inner casing, and the inner cavity of the outer casing. space.
  • the gasket 5 is coated with a seal coating 4 such as a seal varnish or glue at a port which is in contact with the concave layer 7 of the casing which is narrowed in the inner cavity of the casing.
  • Figure 13 is a filter cartridge 1 encasing the protective member solid 4 and the gasket 5 placed in the inner cavity of the outer casing 6, the outer casing 6 being composed of a member 61 and a member 62 which are detachably separable and connectable, and which are formed by a flange 8 and a bolt.
  • the illustrated member 61 and member 62 have been integrally joined by a flange 8 and a bolt.
  • the protective member is a sealed wire mesh, and the protective member 4 contacts the narrowed portion of the inner cavity of the outer casing, that is, the welding bump 7 in the inner cavity of the outer casing, and the member 61 and the member 62 each have a convex block, and the protective member 4 and the filter element 1 are respectively
  • the outer wall, the inner wall of the inner cavity of the outer casing together form a sealed space for the gasket 5.
  • the size and shape of the outer casing members 61 and 62 may be the same or different, specifically in accordance with the overall vehicle.
  • Figure 14 is a filter element 1 encasing the protective member solid 4 and the gasket 5 placed in the inner cavity of the outer casing 6, the outer casing 6 being composed of a member 61 and a member 62 which are detachably separable and connectable by a flange 8 and a bolt.
  • the illustrated member 61 and member 62 have been integrally joined by a flange 8 and a bolt.
  • the protective component is a sealed wire mesh, and the protective component 4 and the filter element 1 contact the narrowed portion of the inner cavity of the outer casing, that is, the cast convex layer 7 in the inner cavity of the outer casing, and the protective component 4, the filter element 1, the inner wall of the inner cavity of the outer casing, and the common formed The sealed space for the gasket 5.
  • Figure 15 is a view in which the filter element 1 encasing the liner 5 is placed in the inner cavity of the outer casing 6, which is composed of a member 61 and a member 62 which are detachably separable and connectable, and which are formed by a flange 8 and a bolt.
  • the component 62 has been integrally joined by a flange 8 and a bolt.
  • the gasket 5 and the filter element 1 are in contact with the narrowed portion of the inner cavity of the outer casing, that is, the welding convex layer 7 in the inner cavity of the outer casing, and the outer casing inner wall of the outer casing and the inner cavity of the outer casing are narrowed, and the convex portion 7 of the outer casing is formed to form the pair of gaskets 5 together. Sealed space.
  • the gasket 5 is coated with a seal coating 4 such as a seal varnish at a port which is in contact with the casing convex layer 7 at a narrowed portion of the inner cavity of the casing.
  • Figure 16 is a filter cartridge 1 encasing the protective member 4 and the gasket 5 which is placed in the inner cavity of the outer casing 6, which is composed of a member 61 and a member 62 which are detachably separable and connected, and which are formed by a flange 8 and a bolt.
  • the illustrated component 61 and component 62 have been integrally joined by a flange 8 and a bolt, the protective component being a stainless steel sheet.
  • the protective member 4 contacts the outwardly-reduced inner wall of the cone at both ends of the outer casing as a fixed position, and the protective member 4, the outer wall of the filter element 1, and the inner wall of the inner casing of the outer casing collectively form a sealed space for the gasket 5.
  • Figure 17 is a filter element 1 in which the inlet end of the protective member 4 and the gasket 5 is placed in the inner cavity of the casing 6, and only the filter inlet port is provided with a protective member of a convex layer, and the protective member is a sealed wire mesh.
  • the outer casing 6 is composed of a member 61 and a member 62 which can be detached and connected and joined by a flange 8 and a bolt, and has been connected.
  • the protective member 4 is in contact with the recessed portion 7 of the narrowed portion of the inner end of the inlet end casing, and the filter element 1 and the gasket 5 collectively contact the concave layer 7 of the narrowed portion of the outlet end of the outlet end.
  • the housing recessed layer 7 is formed by the protective member 4, the outer wall of the filter element 1, the inner wall of the inner casing, and the inner cavity of the outer end of the air outlet to form a sealed space for the gasket 5.
  • Figure 18 is a view showing that the filter element 1 enclosing the protective member 4 and the gasket 5 at the intake end is placed in the inner cavity of the outer casing 6, and only the filter inlet port is provided with a protective member having no convex layer, and the outer casing 6 is detachably separable and connected.
  • the combined component 61 and component 62 are comprised of flanges 8 and bolts and are already connected.
  • the protective member 4 and the gasket 5 jointly contact the casing convex layer 7 of the narrowed portion of the inner end of the inlet end casing, and the filter element 1 and the gasket 5 jointly contact the convex layer 7 of the narrowed portion of the outlet end of the outlet end, and the protective member is a stainless steel piece.
  • the protective layer 4, the filter element 1, the inner wall of the inner cavity of the outer casing, and the convex layer 7 of the narrowed inner cavity of the outer end of the outer casing form a sealed space for the gasket 5.
  • the filter element 1 encasing the protective member 4 and the gasket 5 is placed in the inner cavity of the outer casing 6, the protective member being a sealed wire mesh, and the outer casing 6 is detachably separable and
  • the combined component 61 and the component 62 are composed of a flange 8 and a bolt and have been connected.
  • the protective member 4 contacts the recessed portion 7 of the narrowed portion of the inner casing, and the sealed space of the gasket 5 is formed by the protective member 4, the outer wall of the filter element 1, the inner wall of the inner casing of the outer casing, and the filter element.
  • Figure 20 shows the filter element 11 and the filter element 12 in which the protective member 4 and the gasket 5 are wrapped in the inner cavity of the casing, and a space 9 is left between the filter element 11 and the filter element 12.
  • the outer casing 6 is separated by a separable and connected combination.
  • the part 61, the part 62 and the part 63 consist of a flange 8 and a bolt which is a sealed wire mesh.
  • the protective member 4 is in contact with the recessed portion 7 of the narrowed portion of the outer casing, and the sealed space of the gasket 5 is formed by the protective member 4, the outer walls of the filter elements 11 and 12, and the inner wall of the inner casing of the outer casing.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Processes For Solid Components From Exhaust (AREA)

Abstract

L'invention concerne un piège à particules de gaz résiduaire pour automobile qui comprend un boîtier détachable (6), un joint d'étanchéité (5) et un élément de filtre (1, 11, 12). L'élément de filtre (1, 11, 12) est entouré par le joint d'étanchéité (5) et est placé dans une chambre interne du boîtier (6). Un ou plusieurs éléments de filtre (1, 11, 12) sont montés dans la chambre intérieure du boîtier (6). Un composant de protection (4) est monté au niveau d'une extrémité d'entrée d'air de l'élément de filtre (1, 11, 12) ou de chacune des deux extrémités de l'élément de filtre (1, 11, 12). Des parties de rétrécissement (7) sont disposées aux deux extrémités de la chambre interne du boîtier dans une direction d'écoulement d'air et fixent l'élément de filtre (1, 11, 12).
PCT/CN2018/087227 2017-05-22 2018-05-17 Piège à particules de gaz résiduaire pour automobile WO2018214791A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710361507.3A CN108952890A (zh) 2017-05-22 2017-05-22 一种汽车尾气颗粒捕捉器
CN201710361507.3 2017-05-22

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Publication Number Publication Date
WO2018214791A1 true WO2018214791A1 (fr) 2018-11-29

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WO (1) WO2018214791A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108930571A (zh) * 2017-05-22 2018-12-04 黄毅 一种汽车尾气处理装置

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CN101059094A (zh) * 2007-05-25 2007-10-24 吉林大学 柴油机微粒捕集器
CN101260822A (zh) * 2008-04-17 2008-09-10 上海伊索热能技术有限公司 无机复合密封衬垫及其制备方法
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