Intake manifold assembly
By decomposing the intake manifold into multiple pieces and splicing it using vibration welding technology, the processing problem caused by excessive intake pipes is solved, and the intake manifold assembly with simple structure, easy production and stable performance is achieved. Processing efficiency and economicality.
Patent Information
- Application Number
- CN202421117551.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-05-21
AI Technical Summary
The existing intake manifold segmentation layout has not been fully optimized, resulting in difficult processing of the intake pipe due to excessive length, and increased manufacturing complexity and cost.
The intake manifold is broken into multiple pieces and is spliced and integrated through high-precision vibration welding technology. The design includes the first piece, the second piece, the third piece and the fourth piece to form several pipes. With the pressure stabilization chamber, ensure the connection between the pipes and simplify the manufacturing process.
It effectively avoids processing problems caused by excessive length of single-section pipelines, simplifies manufacturing complexity, improves processing convenience and economy, and ensures the stability and strength of the intake pipelines.
Smart Images
Figure CN222184975U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of automobile engines, and in particular relates to an intake manifold assembly. Background Art
[0002] In the current automotive industry, with the increasingly stringent requirements for engine performance improvement and energy conservation and emission reduction, the design and manufacturing technology of the intake manifold faces new challenges. Although one-piece molding technology is widely used because it can provide better airflow smoothness and structural strength, its complex geometric structure leads to increased manufacturing difficulty and cost, which has become a major obstacle in actual production. To overcome this problem, the introduction of segmented design and vibration welding technology has undoubtedly opened up a new path for the production of intake manifolds. This method effectively reduces manufacturing complexity and cost by splitting the entire manifold into multiple easy-to-process components, and then splicing and integrating them using high-precision vibration welding technology. However, the existing segmented design has failed to fully optimize the segmentation layout of the intake duct, making the intake duct still difficult to process due to its excessive length. Utility Model Content
[0003] The purpose of the utility model is to provide an intake manifold assembly with a simple structure, easy production and stable performance in view of the above problems in the prior art.
[0004] The purpose of the utility model can be achieved through the following technical solutions: an intake manifold assembly, comprising: a first slice, a second slice, a third slice and a fourth slice, the first slice is connected to the second slice, the second slice is respectively connected to the first slice, the third slice and the fourth slice, and the third slice is connected to the fourth slice; wherein, after the first slice is connected to the second slice, a plurality of first pipes are formed, after the second slice is connected to the third slice, a plurality of second pipes are formed, after the third slice is connected to the fourth slice, a plurality of third pipes and a pressure-stabilizing chamber connected to the third pipes are formed, after the fourth slice is connected to the second slice, a plurality of fourth pipes are formed, and the first pipe, the second pipe, the third pipe and the fourth pipe are connected, and cooperate to form a plurality of intake pipes connected to the pressure-stabilizing chamber.
[0005] In the above-mentioned intake manifold assembly, the first segment includes a plurality of first strip grooves, the second segment includes a plurality of second strip grooves corresponding to the first strip grooves one by one, and the first strip grooves are connected to the second strip grooves to form a plurality of first pipes.
[0006] In the above-mentioned intake manifold assembly, the second segment further includes a first connecting portion and a second connecting portion respectively arranged at two ends of the second strip groove, and the first connecting portion and the second connecting portion are respectively connected to the second strip groove and extend in a direction away from the second strip groove.
[0007] In the above-mentioned intake manifold assembly, the third segment includes a first groove, and a plurality of third strip grooves connected to the first groove, and a third connecting portion arranged in a direction away from the first groove and connected to the third strip groove, and the third connecting portion is connected to the first connecting portion to form a plurality of the second pipes.
[0008] In the above-mentioned intake manifold assembly, the fourth segment includes a second groove adapted to the first groove, and a plurality of fourth strip grooves connected to the second groove and corresponding one-to-one to the third strip grooves, and a fourth connecting portion arranged at the second groove in a direction away from the fourth strip grooves, the second groove is connected to the first groove to form the pressure stabilizing chamber, the fourth strip groove is connected to the third strip groove to form a plurality of the third pipes, and the fourth connecting portion is connected to the second connecting portion to form a plurality of the fourth pipes.
[0009] In the above-mentioned intake manifold assembly, the first connection part, the second connection part, the third connection part and the fourth connection part are all hollow cylindrical structures, and welding is formed between the first connection part and the third connection part, and between the second connection part and the fourth connection part.
[0010] In the above-mentioned intake manifold assembly, the fourth connection portion is provided with a flange in a direction away from the second connection portion, and a PCV cover plate is provided on a side wall of the flange.
[0011] In the above-mentioned intake manifold assembly, the first strip groove, the second strip groove, the third strip groove and the fourth strip groove are all arc grooves, wherein there is a gap between two adjacent first strip grooves and / or two adjacent second strip grooves and / or adjacent third strip grooves and / or two adjacent fourth strip grooves, and connecting ribs are provided in the gap.
[0012] In the above-mentioned intake manifold assembly, the second segment is in an arch shape and forms an arc-shaped space between the second segment and the fourth segment. The first groove is recessed toward the second strip groove and is located in the arc-shaped space.
[0013] In the above-mentioned intake manifold assembly, the third segment is also provided with an intake port connected to the pressure stabilizing chamber, a first connecting hole for installing the EGR pipe, and a second connecting hole adjacent to the first connecting hole, and a PCV pipe nozzle is detachably provided on the second connecting hole.
[0014] Compared with the prior art, the utility model has the following beneficial effects: by decomposing the manifold into the first slice, the second slice, the third slice and the fourth slice, a plurality of first pipes are formed after the first slice is connected to the second slice, a plurality of second pipes are formed after the second slice is connected to the third slice, a plurality of third pipes and a pressure stabilizing chamber connected to the third pipes are formed after the third slice is connected to the fourth slice, a plurality of fourth pipes are formed after the fourth slice is connected to the second slice, and the first pipe, the second pipe, the third pipe and the fourth pipe are connected to each other, and cooperate to form a plurality of intake pipes connected to the pressure stabilizing chamber. On the one hand, the intake pipe is divided into multiple pipe sections, avoiding the situation that a single pipe section is difficult to process due to being too long, and on the other hand, the manufacturing complexity of a single slice is simplified, and the assembly of a complex airway structure is realized through the connection design of each slice, thereby effectively improving the convenience and economy of processing. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 The figure is a schematic structural diagram of an intake manifold assembly according to an embodiment of the utility model.
[0016] Figure 2 The figure is an exploded view of an intake manifold assembly according to an embodiment of the utility model.
[0017] Figure 3 for Figure 2 Schematic diagram of the structure from another perspective.
[0018] Figure 4 It is a schematic diagram of the structure of the connection between the first slice and the second slice in an embodiment of the utility model.
[0019] Figure 5 It is a schematic structural diagram of the connection of the second slice, the third slice and the fourth slice in the embodiment of the utility model.
[0020] Figure 6 It is a schematic diagram of the structure of the connection between the third segment and the fourth segment in the embodiment of the utility model.
[0021] In all the drawings, the same reference numerals represent the same technical features, specifically: 100, first segment; 110, first strip groove; 200, second segment; 210, second strip groove; 220, first connecting part; 230, second connecting part; 300, third segment; 310, first groove; 320, third strip groove; 330, third connecting part; 340, air inlet; 350, first connecting hole; 360, second connecting hole; 400, fourth segment; 410, second groove; 420, fourth strip groove; 430, fourth connecting part; 500, flange; 600, PCV cover; 610, PCV pipe nozzle; 700, first pipe; 710, second pipe; 720, third pipe; 730, fourth pipe; 800, pressure stabilizing chamber; 900, connecting rib. DETAILED DESCRIPTION
[0022] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
[0023] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0024] like Figures 1 to 6 As shown, an intake manifold assembly includes a first segment 100, a second segment 200, a third segment 300, a fourth segment 400, a flange 500, a PCV cover plate 600, a PCV pipe nozzle 610, a first pipe 700, a second pipe 710, a third pipe 720, a fourth pipe 730, a pressure stabilizing chamber 800 and a connecting rib 900.
[0025] like Figures 1 to 6 As shown, an intake manifold assembly includes:
[0026] The first slice 100, the second slice 200, the third slice 300 and the fourth slice 400, the first slice 100 is connected to the second slice 200, the second slice 200 is connected to the first slice 100, the third slice 300 and the fourth slice 400 respectively, the third slice 300 is connected to the fourth slice 400; wherein, after the first slice 100 and the second slice 200 are connected, a plurality of first pipes 700 are formed, and after the second slice 200 and the third slice 300 are connected, a plurality of first pipes 700 are formed. The manifold is formed with a plurality of second pipes 710, the third slice 300 is connected with the fourth slice 400 to form a plurality of third pipes 720 and a pressure stabilizing chamber 800 connected with the third pipes 720, the fourth slice 400 is connected with the second slice 200 to form a plurality of fourth pipes 730, and the first pipes 700, the second pipes 710, the third pipes 720 and the fourth pipes 730 are connected to each other and cooperate to form a plurality of intake pipes connected with the pressure stabilizing chamber 800. By decomposing the manifold into the first slice 100, the second slice 200, the third slice 300 and the fourth slice 400, on the one hand, the intake pipe is divided into multiple sections of pipes, avoiding the situation that a single section of pipe is difficult to process due to being too long, and on the other hand, the manufacturing complexity of a single slice is simplified, and the assembly of a complex airway structure is realized through the connection design of each slice, which effectively improves the convenience and economy of processing.
[0027] like Figures 1 to 6 As shown, in this embodiment, the first slice 100, the second slice 200, the third slice 300 and the fourth slice 400 are arranged in sequence from top to bottom. Among them, the first slice 100 includes a plurality of first strip grooves 110, the second slice 200 includes a plurality of second strip grooves 210 corresponding to the first strip grooves 110, and the first strip grooves 110 and the second strip grooves 210 are connected to form a plurality of first pipes 700. Through the split design of the first strip grooves 110 and the second strip grooves 210, the longer first pipe 700 is divided into two strip grooves that are easy to process, which greatly reduces the processing difficulty of the first pipe 700 and significantly improves the processing efficiency of the first pipe 700.
[0028] In this embodiment, the first strip groove 110 and the second strip groove 210 are arc-shaped grooves, which are formed by dividing a plurality of strip-shaped protrusions, wherein there is a gap between two adjacent first strip grooves 110 and / or two adjacent second strip grooves 210, and a connecting rib 900 is provided in the gap, so that the area of the first segment 100 and the second segment 200 is enlarged, which not only ensures the strength of the intake manifold, but also allows slight deformation to adapt to the thermal expansion and contraction of the engine during operation, thereby effectively improving the overall durability of the intake manifold.
[0029] Preferably, in this embodiment, four first strip grooves 110 and four second strip grooves 210 are provided, and the first strip grooves 110 and the second strip grooves 210 are closely connected to form four first pipes 700 .
[0030] In this embodiment, the second slice 200 also includes a first connecting portion 220 and a second connecting portion 230 respectively arranged at both ends of the second strip groove 210, and the first connecting portion 220 and the second connecting portion 230 are respectively connected to the second strip groove 210 and extend in a direction away from the second strip groove 210 so as to form a match with the third slice 300 and the fourth slice 400, which not only provides a stable connection of the slice pieces, but also facilitates a smooth transition of the airflow between the first pipe 700, the second pipe 710 and the fourth pipe 730.
[0031] In this embodiment, the first segment 100 and the second segment 200 are in an arch shape, and an arc-shaped space is formed between the second segment 200 and the fourth segment 400 so that the third segment 300 can be placed therein. This optimizes the space utilization of the intake manifold, and provides more possibilities for the layout in the engine compartment visually and functionally, which is beneficial to the overall compact design of the engine.
[0032] In this embodiment, the first connection part 220 and the second connection part 230 are both hollow cylindrical structures and are integrally formed with the second strip groove 210, wherein the first connection part 220 is closely connected to the third slice 300 away from the second strip groove 210, and the second connection part 230 is closely connected to the fourth slice 400 away from the second strip groove 210, so that the second slice 200 can be connected to the third slice 300 and the fourth slice 400 respectively, thereby ensuring the continuity of the first pipe 700, the second pipe 710, the third pipe 720 and the fourth pipe 730.
[0033] In this embodiment, the third slice 300 includes a first groove 310, a plurality of third strip grooves 320 connected to the first groove 310, and a third connecting portion 330 disposed in a direction away from the first groove 310 and connected to the third strip groove 320. The third connecting portion 330 is connected to the first connecting portion 220 to form a plurality of second pipes 710. The design of the third connecting portion 330 and the cooperation with the first connecting portion 220 form a second pipe 710 for transition between the second slice 200 and the third slice 300, effectively ensuring the continuity and stability of the airflow channel, and also ensuring the tightness of the assembly of each slice. The design of the first groove 310 can be convenient for cooperation with the fourth slice 400 to form a pressure stabilizing chamber 800, and the design of the third strip groove 320 can cooperate with the fourth slice 400 to form a third pipe 720.
[0034] In this embodiment, the third segment 300 is also provided with an air inlet 340 connected to the pressure stabilizing chamber 800, a first connection hole 350 for installing the EGR pipe, and a second connection hole 360 adjacent to the second connection hole 360, and the second connection hole 360 is detachably provided with a PCV pipe nozzle 610. By integrating the interfaces of the throttle, EGR pipeline and PCV system on the third segment 300, not only the functional integration of the intake manifold is optimized, but also the installation and maintenance of these systems are facilitated, the flexibility and adaptability of the system are improved, and it has a positive effect on reducing emissions and improving combustion efficiency.
[0035] In this embodiment, the fourth slice 400 includes a second groove 410 adapted to the first groove 310, and a plurality of fourth strip grooves 420 connected to the second groove 410 and corresponding one-to-one with the third strip grooves 320, and a fourth connecting portion 430 arranged on the second groove 410 away from the fourth strip groove 420. After the second groove 410 is connected to the first groove 310, a pressure-stabilizing chamber 800 is formed, which effectively reduces the processing difficulty of forming the pressure-stabilizing chamber 800; after the fourth strip groove 420 is connected to the third strip groove 320, a plurality of third pipes 720 are formed to ensure that the airflow can smoothly enter the pressure-stabilizing chamber 800; after the fourth connecting portion 430 is connected to the third connecting portion 330, a plurality of fourth pipes 730 are formed, which avoids the problem that the fourth pipe 730 is difficult to process due to being solely provided on the first slice 100 or solely provided on the fourth slice 400. That is, through the design of the fourth slice 400 and the cooperation with the third slice 300 and the second slice 200, the processing technology and processing efficiency of the intake manifold are further optimized, while the stability of the intake manifold is also guaranteed.
[0036] In this embodiment, the third strip groove 320 and the fourth strip groove 420 are arc grooves, which are formed by dividing a plurality of strip protrusions, wherein there is a gap between two adjacent third strip grooves 320 and / or two adjacent fourth strip grooves 420, and a connecting rib 900 is provided in the gap, so that the area of the third segment 300 and the fourth segment 400 is enlarged, which not only ensures the strength of the intake manifold, but also allows slight deformation to adapt to the thermal expansion and contraction of the engine during operation, thereby effectively improving the overall durability of the intake manifold.
[0037] Preferably, in this embodiment, the third strip groove 320 and the fourth strip groove 420 are also provided in four, and the third strip groove 320 and the fourth strip groove 420 are closely connected to form four third pipes 720 accordingly.
[0038] In this embodiment, the third connection part 330 and the fourth connection part 430 are both hollow cylindrical structures, wherein the third connection part 330 is integrally formed with the first groove 310 and the third strip groove 320, and the third connection part 330 is welded with the first connection part 220; the fourth connection part 430 is integrally formed with the second groove 410 and the fourth strip groove 420, and the fourth connection part 430 is welded with the second connection part 230. This can not only effectively improve the sealing of the connection parts and prevent air leakage, but also enhance the structural strength of the entire intake manifold and extend its service life.
[0039] In this embodiment, the fourth connection portion 430 is provided with a flange 500 in a direction away from the second connection portion 230, and a PCV cover plate 600 is provided on the side wall of the flange 500. Through the arrangement of the flange 500, the intake manifold can be conveniently connected to the cylinder head, and the airtightness and stability of the connection between the two are effectively guaranteed. The design of the PCV cover plate 600 can cooperate with the manifold to form a sealed channel for connecting the crankcase, so that the crankcase connected to the manifold can maintain a stable negative pressure during operation.
[0040] It should be noted that in the present utility model, descriptions such as "first", "second", "one", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. The terms "connected", "fixed", etc. should be understood in a broad sense. For example, "fixed" can be a fixed connection, a detachable connection, or an integral whole; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.
[0041] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.
[0042] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.
Claims
1. An intake manifold assembly, characterized in that: include: A first slice, a second slice, a third slice and a fourth slice, the first slice is connected to the second slice, the second slice is connected to the first slice, the third slice and the fourth slice respectively, and the third slice is connected to the fourth slice; wherein, after the first slice is connected to the second slice, a plurality of first pipes are formed, after the second slice is connected to the third slice, a plurality of second pipes are formed, after the third slice is connected to the fourth slice, a plurality of third pipes and a pressure-stabilizing chamber connected to the third pipes are formed, after the fourth slice is connected to the second slice, a plurality of fourth pipes are formed, and the first pipe, the second pipe, the third pipe and the fourth pipe are connected, and cooperate to form a plurality of intake pipes connected to the pressure-stabilizing chamber.
2. An intake manifold assembly according to claim 1, characterized in that: The first segment includes a plurality of first strip grooves, the second segment includes a plurality of second strip grooves corresponding to the first strip grooves one by one, and the first strip grooves are connected to the second strip grooves to form a plurality of first pipes.
3. An intake manifold assembly according to claim 2, characterized in that: The second segment further includes a first connection portion and a second connection portion respectively disposed at two ends of the second strip groove, and the first connection portion and the second connection portion are respectively connected to the second strip groove and extend in a direction away from the second strip groove.
4. An intake manifold assembly according to claim 3, characterized in that: The third segment includes a first groove, a plurality of third strip grooves connected to the first groove, and a third connecting portion arranged in a direction away from the first groove and connected to the third strip groove, and the third connecting portion is connected to the first connecting portion to form a plurality of the second pipes.
5. An intake manifold assembly according to claim 4, characterized in that: The fourth segment includes a second groove matched with the first groove, and a plurality of fourth strip grooves connected with the second groove and corresponding to the third strip grooves one by one, and a fourth connecting portion arranged at the second groove in a direction away from the fourth strip grooves. The second groove is connected to the first groove to form the pressure-stabilizing chamber, the fourth strip groove is connected to the third strip groove to form a plurality of the third pipes, and the fourth connecting portion is connected to the second connecting portion to form a plurality of the fourth pipes.
6. An intake manifold assembly according to claim 5, characterized in that: The first connection part, the second connection part, the third connection part and the fourth connection part are all hollow cylindrical structures, and welding is formed between the first connection part and the third connection part, and between the second connection part and the fourth connection part.
7. An intake manifold assembly according to claim 5, characterized in that: The fourth connection portion is provided with a flange in a direction away from the second connection portion, and a PCV cover plate is provided on a side wall of the flange.
8. An intake manifold assembly according to claim 5, characterized in that: The first strip groove, the second strip groove, the third strip groove and the fourth strip groove are all arc grooves, wherein there is a gap between two adjacent first strip grooves and / or two adjacent second strip grooves and / or adjacent third strip grooves and / or two adjacent fourth strip grooves, and connecting ribs are provided in the gap.
9. An intake manifold assembly according to claim 4, characterized in that: The second segment is in an arch shape and forms an arc-shaped space between the second segment and the fourth segment. The first groove is recessed toward the second strip groove and is located in the arc-shaped space.
10. An intake manifold assembly according to claim 1, characterized in that: The third segment is also provided with an air inlet connected to the pressure stabilizing chamber, a first connecting hole for installing the EGR pipe, and a second connecting hole adjacent to the first connecting hole, and a PCV pipe nozzle is detachably provided on the second connecting hole.