Modularized automobile post-processing system

Abstract

The invention belongs to the technical field of automobile post-processing systems, and discloses a modularized automobile post-processing system. Comprising a first-stage package (1), a second-stage package (2) and a switching chamber (3), one end of the first-stage package (1) is communicated with the switching chamber (3), one end of the second-stage package (2) is communicated with the switching chamber (3), a heat management mechanism (4) is arranged in the switching chamber (3), the other end of the second-stage package (2) is connected with a detachable GPF package (6) through a first clamp (5), and the other end of the detachable GPF package (6) is connected with an air outlet end cone (8) through a second clamp (7). The air outlet end cone (8) comprises an end cone outlet portion (9) extending towards one side. The modularized automobile post-processing system is simple in structure, based on the modularized design concept, assembly products matched with multiple application scenes are formed with the fewest monomer types, performance optimization is considered at the same time, the system complexity is more simplified while the performance is guaranteed, and the part cost is effectively controlled.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile after-treatment systems, and more specifically, relates to a modular automobile after-treatment system. Background Art

[0002] With the continuous upgrading of automobile emission regulations, the requirements for complete machine emissions are getting higher and higher. The precious metal content of key components, especially three-way catalytic converters, is on the rise, which has put great pressure on the cost control of the whole vehicle. With the increasingly fierce market competition, system optimization and component cost reduction have become one of the important trends in the future. The post-processing sealing structure is to ensure reliable sealing connection under various user operating conditions to ensure the normal operation of the engine, and is a relatively critical component.

[0003] In the prior art, there is a technology named "Modular after-treatment component for engine system" with announcement number CN205858447U, which discloses an after-treatment component: including a first section shell, a second section shell and a third section shell, adopting a diversion design, with a compact structure, can be installed in a small space, and can reduce the reverse pressure on the modular after-treatment component. However, this after-treatment structure is relatively complex and is suitable for complex after-treatment systems of large diesel engines, but lacks adaptability to gasoline engines.

[0004] In the prior art, there is a technology named "Automobile Exhaust Aftertreatment System and Automobile" and the publication (announcement) number is "CN108412591A". This technology is applicable to the field of automobile exhaust treatment technology. It provides and discloses an automobile exhaust aftertreatment system, including an exhaust pipe, a controller, a DOC catalyst installed on the exhaust pipe and a particle trap. The carrier of the particle trap is made of silicon carbide. A first pressure sensor is provided at the inlet of the particle trap, a second pressure sensor is provided at the outlet of the particle trap, a first temperature sensor is provided at the inlet of the DOC catalyst, and a second temperature sensor is provided at the inlet of the particle trap. The controller is electrically connected to the first pressure sensor, the second pressure sensor, the first temperature sensor and the second temperature sensor respectively. The controller is used to control the delay of the main fuel injection when the pressure difference detected by the first pressure sensor and the second pressure sensor exceeds a preset value. The system can solve the problems of high cost and long calibration cycle of the prior art. The present invention also provides a car using the above system.

[0005] However, this technology does not involve the technical problems and technical solutions of the present application. Summary of the invention

[0006] The technical problem to be solved by the present invention is: in view of the shortcomings of the existing technology, a modular automotive after-treatment system is provided which has a simple structure, is based on a modular design concept, forms an assembly product adapted to multiple application scenarios with a minimum number of monomer types, and takes into account performance optimization. While ensuring performance, the system complexity is further simplified and the cost of components is effectively controlled.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is:

[0008] The present invention is a modular automobile after-treatment system, comprising a primary package, a secondary package and a transfer chamber, wherein one end of the primary package is connected to the transfer chamber, one end of the secondary package is connected to the transfer chamber, a thermal management mechanism is arranged inside the transfer chamber, the other end of the secondary package is connected to a detachable GPF package through a first clamp, the other end of the detachable GPF package is connected to an outlet end cone through a second clamp, and the outlet end cone comprises an end cone outlet portion extending to one side.

[0009] The transfer chamber comprises a chamber inlet and a chamber outlet, one end of the first-level packaging is connected to the chamber inlet, and one end of the second-level packaging is connected to the chamber outlet.

[0010] The heat management mechanism is located between the chamber inlet and the chamber outlet, and the heat management mechanism is installed with interference fit on both side walls inside the transfer chamber.

[0011] The thermal management mechanism comprises a mechanism body, on which a mechanism pipeline and a partition hole are arranged, and a pipeline valve is arranged on the mechanism pipeline.

[0012] The second-stage package is provided with a first convex portion extending outward at the other end, the detachable GPF package is provided with a second convex portion extending outward at one end, the detachable GPF package is provided with a third convex portion extending outward at the other end, and the outlet end cone is provided with a fourth convex portion extending outward at one end.

[0013] The primary package comprises a primary package body and a primary package small opening. One end of the primary package body is connected to the transfer chamber, and the other end of the primary package body is an integrated structure with the primary package small opening.

[0014] The first-level packaging small opening of the first-level packaging body is connected to the engine exhaust port.

[0015] The first clamp comprises a clamp body, one end of which is movably connected to a clamping screw, a fastening nut is screwed onto the clamping screw, and a clamping notch is arranged at the other end of the clamp body.

[0016] The second clamp comprises a clamp body, one end of which is movably connected to a clamping screw on the outside, a fastening nut is screwed on the clamping screw, and a clamping notch is arranged at the other end of the clamp body.

[0017] The technical solution of the present invention is adopted, and the working principle and beneficial effects are as follows:

[0018] The modular automobile after-treatment system described in the present invention is to respectively manufacture a primary package, a secondary package, a transfer chamber, a thermal management mechanism, a detachable GPF package, and an outlet cone, and then connect the above components. The primary package and the secondary package are respectively connected to the transfer chamber, the other end of the secondary package is connected to the detachable GPF package through a first clamp, and the other end of the detachable GPF package is connected to the outlet cone through a second clamp, and the outlet cone includes an end cone outlet extending to one side. The modular automobile after-treatment system is integrated at the exhaust outlet of the automobile engine, and the primary package is connected to the exhaust outlet of the engine. The clamp used for connection is adjustable to realize a modular structure, which can match the vehicle components at different outlet positions, and adapt more vehicle models with different combination products of the minimum unit number of parts. The GPF package is detachable, which is convenient for later maintenance and replacement. The thermal management mechanism integrated inside the transfer chamber can optimize the uniformity of airflow and improve system efficiency by adjusting the valve opening time and the distribution of the baffle holes. Working principle: The after-treatment system is directly connected to the engine exhaust port through a primary package and fixed on the engine body. The other end of the detachable GPF package is connected to the outlet cone through a second clamp. The second clamp 7 can be loosened to rotate the outlet cone to achieve the required position, and then the second clamp can be tightened. In this way, the boundary layout of different models can be adapted by adjusting the rotation direction of the outlet cone end. When the change in rotation direction causes the uniformity of the air flow to decrease, the fluid design can be optimized by adjusting the valve opening time or the baffle hole of the internal thermal management mechanism, so as to achieve the same or even higher system efficiency within the minimum range of variation, realize modularization, reduce the types and number of monomer parts, and improve the commonality rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following is a brief description of the contents and symbols in the drawings of this specification:

[0020] Figure 1 It is a structural schematic diagram of the modular automobile after-treatment system of the present invention;

[0021] Figure 2 It is a schematic diagram of the exploded structure of the modular automobile after-treatment system of the present invention;

[0022] Figure 3 A schematic diagram of the structure of the thermal management mechanism of the modular automobile after-treatment system of the present invention;

[0023] Figure 4 A schematic diagram of the structure of the secondary packaging of the modular automobile after-treatment system of the present invention;

[0024] Figure 5It is a schematic structural diagram of a detachable GPF package of a modular automobile after-treatment system according to the present invention;

[0025] Figure 6 It is a schematic structural diagram of the outlet cone of the modular automobile after-treatment system of the present invention;

[0026] Figure 7 It is a schematic structural diagram of a clamp of a modular automobile after-treatment system according to the present invention;

[0027] The markings in the accompanying drawings are respectively: 1. primary packaging; 2. secondary packaging; 3. transfer chamber; 4. thermal management mechanism; 5. first clamp; 6. detachable GPF packaging; 7. second clamp; 8. outlet end cone; 9. end cone outlet; 10. chamber inlet; 11. chamber outlet; 12. mechanism body; 13. mechanism pipeline; 14. pipeline valve; 15. partition hole; 16. first convex portion; 17. second convex portion; 18. third convex portion; 19. fourth convex portion; 20. primary packaging body; 21. primary packaging small mouth; 22. clamp body; 23. clamping screw; 24. fastening nut; 25. clamping slot. DETAILED DESCRIPTION

[0028] The following is a further detailed description of the specific implementation of the present invention, such as the shape, structure, mutual position and connection relationship between the various components involved, the function and working principle of each part, etc., through the description of the embodiments with reference to the accompanying drawings:

[0029] As attached Figure 1 -Attached Figure 7As shown, the present invention is a modular automobile after-treatment system, including a primary package 1, a secondary package 2 and a transfer chamber 3, one end of the primary package 1 is connected to the transfer chamber 3, one end of the secondary package 2 is connected to the transfer chamber 3, a thermal management mechanism 4 is arranged inside the transfer chamber 3, the other end of the secondary package 2 is connected to a detachable GPF package 6 through a first clamp 5, and the other end of the detachable GPF package 6 is connected to an outlet end cone 8 through a second clamp 7, and the outlet end cone 8 includes an end cone outlet portion 9 extending to one side. The above structure proposes an improved technical solution to address the deficiencies in the prior art. When setting the structure, the primary package 1, the secondary package 2, the transfer chamber 3, the thermal management mechanism 4, the detachable GPF package 6, and the outlet end cone 8 are made separately, and then the above components are connected. The primary package 1 and the secondary package 2 are respectively connected to the transfer chamber 3, the other end of the secondary package 2 is connected to the detachable GPF package 6 through the first clamp 5, and the other end of the detachable GPF package 6 is connected to the outlet cone 8 through the second clamp 7, and the outlet cone 8 includes an end cone outlet portion 9 extending to one side. The modular automobile after-treatment system is integrated at the exhaust outlet of the automobile engine, and the primary package 1 is connected to the exhaust outlet of the engine. The clamp used for connection is adjustable to achieve a modular structure, which can match vehicle components with different outlet positions, and adapt to more vehicle models with different combination products of the minimum unit number of parts. The GPF package 6 is detachable for later maintenance and replacement. The thermal management mechanism 4 integrated in the transfer chamber 3 can optimize the airflow uniformity and improve the system efficiency by adjusting the valve opening time and the distribution of the baffle holes. Working principle: The after-treatment system is directly connected to the engine exhaust port through the first-level package 1 and fixed on the engine body. The other end of the detachable GPF package 6 is connected to the outlet cone 8 through the second clamp 7. The second clamp 7 can be loosened to rotate the outlet cone 8 to achieve the required position, and then the second clamp 7 can be tightened. In this way, the boundary layout of different models can be adapted by adjusting the rotation direction of the outlet cone end. When the change in rotation direction causes the airflow uniformity to decrease, the fluid design can be optimized by adjusting the valve opening time or the baffle hole of the internal thermal management mechanism to achieve the same or even higher system efficiency within the minimum variation range, thereby achieving modularization, reducing the types and number of monomer parts, and improving the commonality rate. The modular automobile after-treatment system described in the present invention has a simple structure and is based on the modular design concept. It forms an assembly product adapted to multiple application scenarios with the least monomer types, while taking into account performance optimization. While ensuring performance, the system complexity is further simplified and the cost of parts is effectively controlled.

[0030] The transfer chamber 3 includes a chamber inlet 10 and a chamber outlet 11. One end of the primary package 1 is connected to the chamber inlet 10, and one end of the secondary package 2 is connected to the chamber outlet 11. In the above structure, the primary package 1 is welded to the chamber inlet 10 for the entry of engine exhaust, and the secondary package 2 is welded to the chamber outlet 11 for the exhaust gas passing through the thermal management mechanism 4.

[0031] The thermal management mechanism 4 is located between the chamber inlet 10 and the chamber outlet 11, and the thermal management mechanism 4 is installed with interference fit on both side walls inside the transfer chamber 3. In the above structure, the thermal management mechanism 4 is used to control the exhaust gas entering from the chamber inlet 10, and the exhaust gas must pass through the thermal management mechanism before it can be discharged from the chamber outlet 11 and then enter the secondary packaging.

[0032] The thermal management mechanism 4 includes a mechanism body 12, on which a mechanism pipeline 13 and a baffle hole 15 are arranged, and a pipeline valve 14 is arranged on the mechanism pipeline 13. In the above structure, the control component is connected to the pipeline valve to control the opening and closing and opening adjustment of the pipeline valve. When the uniformity of the exhaust gas flow decreases, the fluid is optimized by adjusting the opening time and opening size of the pipeline valve of the thermal management mechanism, so as to achieve the same or even higher system efficiency under the condition of the minimum variation range.

[0033] The second-stage package 2 is provided with a first convex portion 16 extending outward at the other end, the detachable GPF package 6 is provided with a second convex portion 17 extending outward at one end, the detachable GPF package 6 is provided with a third convex portion 18 extending outward at the other end, and the outlet cone 8 is provided with a fourth convex portion 19 extending outward at one end. The above structure, corresponding to the setting of the convex portion, is used to connect adjacent components with a clamp. Specifically, the first clamp is clamped to the first convex portion and the second convex portion to achieve the connection between the second-stage package and the detachable GPF package 6. The second clamp is clamped to the third convex portion and the fourth convex portion to achieve the connection between the detachable GPF package 6 and the outlet cone 8. It can be adjusted, the connection is reliable when connected, and it is also very convenient when disassembled.

[0034] The primary package 1 includes a primary package body 20 and a primary package small opening 21. One end of the primary package body 20 is connected to the transfer chamber 3, and the other end of the primary package body 20 is an integrated structure with the primary package small opening 21. The primary package small opening 21 of the primary package body 20 is connected to the engine exhaust port. The engine exhaust gas enters the primary package through the primary package small opening 21, and then enters the transfer chamber 3 through the primary package body 20.

[0035] The first clamp 5 comprises a clamp body 22, one end of which is movably connected to a clamp screw 23, a fastening nut 24 is screwed on the clamp screw 23, and a clamping notch 25 is arranged at the other end of the clamp body 22. The clamp screw is clamped in the clamp notch, and then the fastening nut is screwed in one direction to tighten the clamp body, and the fastening nut is screwed in the other direction to loosen the clamp body, which is convenient to adjust and reliable to tighten.

[0036] The second clamp 7 comprises a clamp body 22, a clamp screw 23 is movably connected to the outer side of one end of the clamp body 22, a fastening nut 24 is screwed on the clamp screw 23, and a clamping notch 25 is arranged at the other end of the clamp body 22. The above structure is convenient to adjust and reliable to fasten, because the clamp screw is clamped in the clamping notch, and then the fastening nut is screwed in one direction to tighten the clamp body, and the fastening nut is screwed in the other direction to loosen the clamp body.

[0037] The modular automobile after-treatment system described in the present invention, when the structure is set, the primary package 1, the secondary package 2, the transfer chamber 3, the thermal management mechanism 4, the detachable GPF package 6, and the outlet cone 8 are respectively made, and then the above components are connected. The primary package 1 and the secondary package 2 are respectively connected to the transfer chamber 3, the other end of the secondary package 2 is connected to the detachable GPF package 6 through the first clamp 5, and the other end of the detachable GPF package 6 is connected to the outlet cone 8 through the second clamp 7, and the outlet cone 8 includes an end cone outlet 9 extending to one side. The modular automobile after-treatment system is integrated at the exhaust outlet of the automobile engine, and the primary package 1 is connected to the exhaust outlet of the engine. The clamp used for connection is adjustable to realize a modular structure, which can match the vehicle components at different outlet positions, and adapt more models with different combination products of the minimum unit number of parts. The GPF package 6 is detachable, which is convenient for later maintenance and replacement. The thermal management mechanism 4 integrated inside the transfer chamber 3 can optimize the airflow uniformity and improve the system efficiency by adjusting the valve opening time and the distribution of the baffle holes. Working principle: The after-treatment system is directly connected to the engine exhaust port through the first-level package 1 and fixed on the engine body. The other end of the detachable GPF package 6 is connected to the outlet cone 8 through the second clamp 7. The second clamp 7 can be loosened to rotate the outlet cone 8 to achieve the required position, and then the second clamp 7 can be tightened. In this way, the boundary layout of different models can be adapted by adjusting the rotation direction of the outlet cone end. When the change in rotation direction causes the airflow uniformity to decrease, the fluid design can be optimized by adjusting the valve opening time or the baffle hole of the internal thermal management mechanism, so as to achieve the same or even higher system efficiency with the minimum variation range, realize modularization, reduce the types and number of monomer parts, and improve the commonality rate.

[0038] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A modular automotive aftertreatment system, characterized in that: The invention comprises a primary package (1), a secondary package (2) and a transfer chamber (3), wherein one end of the primary package (1) is connected to the transfer chamber (3), one end of the secondary package (2) is connected to the transfer chamber (3), a heat management mechanism (4) is arranged inside the transfer chamber (3), the other end of the secondary package (2) is connected to a detachable GPF package (6) through a first clamp (5), the other end of the detachable GPF package (6) is connected to an outlet end cone (8) through a second clamp (7), and the outlet end cone (8) comprises an end cone outlet portion (9) extending to one side; the transfer chamber (3) The invention comprises a chamber inlet (10) and a chamber outlet (11), wherein one end of the first-level package (1) is connected to the chamber inlet (10), and one end of the second-level package (2) is connected to the chamber outlet (11); the second-level package (2) is provided with a first convex portion (16) extending outward at the other end, the detachable GPF package (6) is provided with a second convex portion (17) extending outward at one end, the detachable GPF package (6) is provided with a third convex portion (18) extending outward at the other end, and the outlet cone (8) is provided with a fourth convex portion (19) extending outward at one end.

2. The modular automotive aftertreatment system according to claim 1, characterized in that: The heat management mechanism (4) is located between the chamber inlet (10) and the chamber outlet (11), and the heat management mechanism (4) is installed with interference fit on both side walls inside the transfer chamber (3).

3. The modular automotive aftertreatment system according to claim 1 or 2, characterized in that: The thermal management mechanism (4) comprises a mechanism body (12), a mechanism pipeline (13) and a partition hole (15) are arranged on the mechanism body (12), and a pipeline valve (14) is arranged on the mechanism pipeline (13).

4. The modular automotive aftertreatment system according to claim 1 or 2, characterized in that: The primary package (1) comprises a primary package main body (20) and a primary package small opening (21); one end of the primary package main body (20) is connected to the transfer chamber (3), and the other end of the primary package main body (20) and the primary package small opening (21) are an integrated structure.

5. The modular automotive aftertreatment system according to claim 4, characterized in that: The primary packaging small opening (21) of the primary packaging main body (20) is connected to the engine exhaust port.

6. The modular automotive aftertreatment system according to claim 1 or 2, characterized in that: The first clamp (5) comprises a clamp body (22), and the outer side of one end of the clamp body (22) is movably connected to a clamping screw (23).

7. The modular automotive aftertreatment system according to claim 6, characterized in that: A fastening nut (24) is screwed onto the clamping screw (23), and a clamping notch (25) is arranged at the other end of the clamp body (22).

8. The modular automotive aftertreatment system according to claim 1 or 2, characterized in that: The second clamp (7) comprises a clamp body (22), and the outer side of one end of the clamp body (22) is movably connected to a clamping screw (23).

9. The modular automotive aftertreatment system according to claim 8, characterized in that: A fastening nut (24) is screwed onto the clamping screw (23), and a clamping notch (25) is arranged at the other end of the clamp body (22).

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