Structure for achieving EGR condensate water distribution in intake manifold pressure stabilizer
By designing the lower shell, upper shell, water accumulation plate, main airway and branch airway structures in the intake manifold voltage regulator, the uniform distribution of condensate water is achieved, and the engine cylinder shortage caused by condensate concentration is solved and the engine stability is improved.
Patent Information
- Application Number
- CN202422133157.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-02
AI Technical Summary
In the prior art, EGR condensate is centrally pumped into the fourth cylinder in the intake manifold regulator, resulting in the engine cylinder shortage problem.
A structure including a lower shell, an upper shell, a water accumulation plate, a main airway and a branch airway is designed. Through the setting of the water barrier rib plate and the air intake interface, the uniform distribution of condensate water is achieved, and arc-shaped transition connections and sealing rings are adopted to improve circulation efficiency and sealing.
It effectively avoids the problem of concentrated condensate water being pumped into a single cylinder, ensures that the condensate water is evenly distributed into each cylinder, and solves the problem of engine cylinder shortage.
Smart Images
Figure CN223136295U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of intake manifolds, and particularly to a structure for solving the distribution of EGR condensate water in an intake manifold pressure regulator. Background Art
[0002] As part of the aluminum-to-plastic conversion of automotive functional components to reduce the overall vehicle cost, such as intake manifolds, after adding an EGR valve currently, a large amount of water will appear in the pressure stabilizing chamber, and this water will be completely pumped into the fourth cylinder of the intake manifold at a certain time, resulting in the problem of engine cylinder misfire.
[0003] Therefore, it is necessary to provide a structure for solving the distribution of EGR condensate water in an intake manifold pressure regulator to solve the above technical problems. Summary of the Utility Model
[0004] To solve the above technical problems, the utility model provides a structure for solving the distribution of EGR condensate water in an intake manifold pressure regulator.
[0005] A structure for solving the distribution of EGR condensate water in an intake manifold pressure regulator provided by the utility model includes a lower shell and an upper shell installed on the top of the lower shell. One end of the bottom of the lower shell is provided with an installation notch, and a water accumulation plate is installed in the installation notch. An air passage is provided between the lower shell and the upper shell. The air passage includes a main air passage and a branch air passage perpendicular to the main air passage. A water retaining rib for guiding the condensate water to be evenly distributed to the branch air passages is provided on the inner wall of the lower shell located on the inner wall of the main air passage. An air inlet interface is provided at one end of the lower shell opposite to the water accumulation plate, and a water inlet for discharging the condensate water onto the water accumulation plate is provided at the air inlet interface.
[0006] Preferably, the connection between the main air passage and the branch air passage is in an arc transition.
[0007] Preferably, the water retaining rib forms an angle of ± degrees with the edge of the lower shell.
[0008] Preferably, sealing rings are installed at both the end of the branch air passage and the air inlet interface.
[0009] Preferably, four water inlets are provided at equal angles.
[0010] Compared with the related technology, the utility model provided has the following beneficial effects:
[0011] The water is stored in the water accumulator by using the water accumulator. There are through holes inside the water accumulator. After a small amount of water flows into the air passage, the water is evenly distributed into 4 cylinders through the baffle structure inside the housing, avoiding the problem that all the water is pumped into the fourth cylinder in a certain specific environment in the original structure. Description of the Drawings
[0012] Figure 1Schematic diagram of the overall structure of the present utility model;
[0013] Figure 2 Schematic diagram of the structure of the lower housing of the present utility model;
[0014] Figure 3 Schematic diagram of the relative position of the installation notch of the present utility model;
[0015] Figure 4 Front view of the lower housing of the present utility model.
[0016] Reference numerals: 1, lower housing; 2, upper housing; 3, water accumulation plate; 4, main air duct; 5, branch air duct; 6, water blocking rib; 7, air inlet interface; 8, water inlet; 9, sealing ring; 10, installation notch. Detailed implementation manners
[0017] The present utility model will be further described below in conjunction with the drawings and implementation manners.
[0018] Please refer to Figures 1 to 4 , a structure for solving the distribution of EGR condensate in an intake manifold pressure regulator, including a lower housing 1 and an upper housing 2, and the upper housing 2 is installed on the top of the lower housing 1. An installation notch 10 is provided at one end of the bottom of the lower housing 1, and the water accumulation plate 3 is installed in this notch. An air duct is formed between the lower housing 1 and the upper housing 2, and this air duct is composed of a main air duct 4 and a branch air duct 5 perpendicular to the main air duct 4. In order to guide the condensate to be evenly distributed to each branch air duct 5, a water blocking rib 6 is provided on the inner wall of the lower housing 1 at the part of the main air duct 4. In addition, an air inlet interface 7 is provided at one end of the lower housing 1 facing the water accumulation plate 3, and four water inlets 8 are provided at equal angles at the air inlet interface 7 to discharge the condensate onto the water accumulation plate 3.
[0019] An arc transition design is adopted at the connection of the main air duct 4 and the branch air duct 5, which not only facilitates the entry of gas and condensate into the branch air duct 5, but also helps to improve the flow efficiency of the air duct. The angle between the water blocking rib 6 and the edge of the lower housing 1 is precisely controlled within 120 degrees ± 3 degrees to ensure that it can effectively distribute the condensate evenly into each branch air duct 5.
[0020] In order to enhance the airtightness of the air duct, sealing rings 9 are installed at the ends of the branch air ducts 5 and at the air inlet interface 7. In this way, an effective seal can be formed in the air duct after connection to prevent gas and condensate from leaking.
[0021] By adding the design of the water accumulation plate 3 and four water inlets 8 at the air inlet interface 7, this structure ensures that the condensate can flow smoothly into the manifold. At the same time, the design of the water accumulation plate 3 and the water inlets 8 also enables the condensate to be more evenly distributed to each cylinder, thus effectively solving the problem of engine cylinder misfire caused by the concentration of condensate in the fourth cylinder in the early stage.
[0022] The above are only embodiments of the present utility model, and do not thus limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall similarly be included within the patent protection scope of the present utility model.
Claims
1. A structure for solving the distribution of EGR condensate in an intake manifold pressure stabilizer, characterized in that, It includes a lower shell (1) and an upper shell (2) installed on the top of the lower shell (1). One end of the bottom of the lower shell (1) is provided with an installation notch (10), and a water accumulation plate (3) is installed in the installation notch (10). An air duct is provided between the lower shell (1) and the upper shell (2), and the air duct includes a main air duct (4) and a branch air duct (5) perpendicular to the main air duct (4). A water retaining rib (6) for guiding the condensate to be evenly distributed to the branch air duct (5) is provided on the inner wall of the lower shell (1) located on the inner wall of the main air duct (4). An air inlet interface (7) is provided at one end of the lower shell (1) facing the water accumulation plate (3), and a water inlet (8) for discharging the condensate into the water accumulation plate (3) is provided at the air inlet interface (7).
2. A structure for solving the distribution of EGR condensate water in an intake manifold pressure regulator according to claim 1, characterized in that, The connection between the main air duct (4) and the branch air duct (5) is in an arc transition.
3. A structure for solving the distribution of EGR condensate water in an intake manifold pressure regulator according to claim 1, characterized in that, The water retaining rib (6) forms an angle of 120 degrees ± 3 degrees with the edge of the lower shell (1).
4. A structure for solving the distribution of EGR condensed water in an intake manifold pressure regulator, characterized in that, Sealing rings (9) are installed at both the end of the branch air duct (5) and the air inlet interface (7).
5. A structure for solving the distribution of EGR condensate in an intake manifold pressure regulator, characterized in that, Four water inlets (8) are provided at equal angles.