A new intake manifold structure

Abstract

The utility model provides a novel air intake manifold structure, including air intake manifold, the lateral wall of air intake manifold is connected with the air intake branch pipe of multiple and intercommunication, the one end of air intake manifold is the opening of air throttle body connection, the liquid pool chamber that sets up downward away from the opening of air intake manifold, the inner wall of air intake manifold is seted up with the strip shape water inlet hole of liquid pool chamber intercommunication along its length direction, air intake manifold has the electric heating cover, the bottom of liquid pool chamber is seted up with the drain hole of not being stopped by electric heating cover, the outer wall of liquid pool chamber is provided with the dust screen cover of covering drain hole. The utility model discloses, adopt the design of automatic ice melting and automatic drainage, can effectively prevent the icing in air intake manifold, avoid because icing influence engine's inflation efficiency and power output.

Description

Technical Field

[0001] This utility model belongs to the field of engine component technology and relates to a novel intake manifold structure. Background Technology

[0002] In internal combustion engine systems, the intake manifold is a key component. Its main function is to evenly distribute air (or an air-fuel mixture) to each cylinder to ensure efficient combustion. Traditionally, intake manifolds are made of metal materials such as aluminum alloys or cast iron. However, with increasing demands for vehicle lightweighting and fuel efficiency, engineering plastics have gradually become the preferred material for manufacturing intake manifolds. These materials not only possess excellent mechanical strength and chemical resistance but also allow for weight reduction and lower production costs through optimized design.

[0003] Nevertheless, under certain operating conditions, especially when the ambient humidity is high and the temperature is low, moisture can easily accumulate inside the intake manifold. Specifically, when cold, humid air enters the engine's intake system, the moisture in the air condenses into small water droplets on the inner wall of the intake manifold due to the sudden drop in temperature. If the ambient temperature is below freezing, these water droplets will further freeze to form an ice layer, causing partial blockage of the intake passage. The accumulation of ice reduces the effective cross-sectional area of ​​the intake manifold, increasing intake resistance and consequently affecting the engine's charging efficiency and power output. Utility Model Content

[0004] The purpose of this invention is to provide a novel intake manifold structure that employs an automatic de-icing and automatic drainage design, which can effectively prevent ice formation inside the intake manifold and avoid affecting the engine's charging efficiency and power output due to icing.

[0005] To solve the above-mentioned technical problems, this utility model provides a novel intake manifold structure, including an intake main pipe, with multiple intake branch pipes connected to the side wall of the intake main pipe. One end of the intake main pipe is an opening connected to the throttle body. A liquid accumulation chamber is provided downward away from the opening of the intake main pipe. A strip-shaped water inlet hole communicating with the liquid accumulation chamber is opened along the length direction of the inner wall of the intake main pipe. An electric heating sleeve is fitted over the intake main pipe. A drain hole that is not blocked by the electric heating sleeve is opened at the bottom of the liquid accumulation chamber. A dust filter screen covering the drain hole is provided on the outer wall of the liquid accumulation chamber.

[0006] By adopting the above technical solution, when the engine is working, air enters the intake manifold. After the air comes into contact with the inner wall of the intake manifold and the low-temperature condensation strip, the moisture in the air will condense on the surface of the intake manifold and flow downward through the strip-shaped water inlet into the liquid accumulation chamber. Then, under the action of gravity, it will be discharged through the drain hole. If ice is detected on the inner wall of the intake manifold, the electric heating jacket will work to heat the intake manifold at a low temperature, so that the ice on its inner wall melts into water and flows into the liquid accumulation chamber, and is finally discharged from the drain hole, effectively preventing the intake manifold from icing and causing intake blockage.

[0007] The present invention is further provided that the inner wall of the intake manifold is provided with a plurality of low-temperature condensation strips that are circumferentially distributed and arranged along its length.

[0008] The present invention is further configured such that each low-temperature condensation strip is cut into multiple strips along its length.

[0009] The present invention is further configured such that the end of the liquid accumulation chamber away from the opening end of the air intake manifold is inclined downward.

[0010] The present invention is further configured such that the electric heating jacket is made of silicone electric heating sheet.

[0011] The present invention is further configured such that the main intake pipe and each intake branch pipe are made of engineering plastics.

[0012] The present invention is further configured such that a temperature sensor for detecting the surface temperature of the outer wall of the intake manifold is provided.

[0013] Compared with the prior art, this utility model has an electric heating jacket installed on the outside of the intake manifold. After detecting that ice has formed inside, the electric heating jacket heats the intake manifold at a low temperature, which melts the ice inside and prevents the accumulation of ice from reducing the effective cross-sectional area of ​​the intake manifold. At the same time, the water after the ice melts flows into the liquid accumulation chamber and is discharged through the drain hole, preventing the melt water from remaining in the intake manifold and eventually flowing to the throttle body, causing the throttle body to freeze. This avoids the impact of ice formation on the engine's charging efficiency and power output. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 It is used to display the temperature sensor, drain hole, and dust filter on the main intake manifold;

[0016] Figure 3 It is a partial cross-sectional view used to show the internal structure of the intake manifold.

[0017] The components include: 1. Main intake pipe; 2. Intake branch pipe; 3. Liquid accumulation chamber; 4. Strip-shaped water inlet hole; 5. Low-temperature condensation strip; 6. Electric heating jacket; 7. Temperature sensor; 8. Drain hole; and 9. Dust filter screen. Detailed Implementation

[0018] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a further detailed explanation of a novel intake manifold structure proposed in this utility model. The advantages and features of this utility model will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model. The same or similar reference numerals in the drawings represent the same or similar components.

[0019] Example, refer to Figure 1-3 A novel intake manifold structure includes an intake manifold 1, with four intake branch pipes 2 connected to the side wall of the intake manifold 1. The intake manifold 1 and each intake branch pipe 2 are made of engineering plastic. One end of the intake manifold 1 is an opening connected to the throttle body. A liquid accumulation chamber 3 is provided downward away from the opening of the intake manifold 1. The end of the liquid accumulation chamber 3 away from the opening of the intake manifold 1 is inclined downward. A strip-shaped water inlet hole 4 communicating with the liquid accumulation chamber 3 is provided on the inner wall of the intake manifold 1 along its length, so that the generated water can accumulate towards the end away from the opening of the intake manifold 1, preventing it from flowing into the throttle body. The inner wall of the intake manifold 1 is provided with multiple low-temperature condensation strips 5 arranged in a circular pattern along its length. Each low-temperature condensation strip 5 is cut into multiple strips along its length to increase the condensation capacity of moisture in the air inside the intake manifold 1. The intake manifold 1 is covered with an electric heating jacket 6. A temperature sensor 7 for detecting its surface temperature is provided on the outer wall of the intake manifold 1. A drain hole 8 is provided at the bottom of the liquid accumulation chamber 3, which is not blocked by the electric heating jacket 6. A dust filter screen 9 is provided on the outer wall of the liquid accumulation chamber 3 to cover the drain hole 8 to prevent dust from entering the intake manifold 1 through the drain hole 8. At the same time, water in the liquid accumulation chamber 3 can be discharged through the drain hole 8 and the dust filter screen 9.

[0020] Working principle: When the engine is running, air enters the intake manifold 1. After the air comes into contact with the inner wall of the intake manifold 1 and the low-temperature condensation strip 5, the moisture in the air will condense on the surface of the intake manifold 1 and the low-temperature condensation strip 5, and flow downward through the strip-shaped water inlet 4 into the liquid accumulation chamber 3. Then, under the action of gravity, it will be discharged through the drain hole 8. If ice is detected on the inner wall of the intake manifold 1, the electric heating jacket 6 will work to heat the intake manifold 1 at a low temperature, so that the ice on its inner wall melts into water and flows into the liquid accumulation chamber 3, and is finally discharged from the drain hole 8, effectively preventing the intake manifold from icing and causing intake blockage.

[0021] It should also be noted that all terms such as "set up" and similar descriptive words in this application (especially the specification) indicate that two structures have or exist a connection relationship. However, the specific means by which the two are connected are not limited in detail, and are usually conventional connection methods. That is, the means should be understood as prior art and do not need to be elaborated. For example, "m is set up with n" only indicates that structure m has structure n, and whether the two are connected by welding, riveting, adhesive, or integral molding is within the scope of protection of this application. Similarly, "x is rotatably set up with y" only indicates that y and x can rotate relative to each other, and whether the two are connected by a bearing, or whether y directly passes through x and is rotatably connected to x, or other feasible methods, are all within the scope of protection of this application.

[0022] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A novel intake manifold structure, comprising an intake manifold (1), wherein a plurality of intake branch pipes (2) are connected to the side wall of the intake manifold (1) and communicate therewith, and one end of the intake manifold (1) is an opening connected to a throttle body, characterized in that, The main air intake pipe (1) has a liquid accumulation chamber (3) located downward away from its opening. The inner wall of the main air intake pipe (1) has a strip-shaped water inlet hole (4) that communicates with the liquid accumulation chamber (3) along its length. The main air intake pipe (1) is covered with an electric heating sleeve (6). The bottom of the liquid accumulation chamber (3) has a drain hole (8) that is not blocked by the electric heating sleeve (6). The outer wall of the liquid accumulation chamber (3) is covered with a dust filter screen (9) that covers the drain hole (8).

2. The novel intake manifold structure according to claim 1, characterized in that, The inner wall of the intake manifold (1) is provided with multiple low-temperature condensation strips (5) that are circumferentially distributed and arranged along its length.

3. The novel intake manifold structure according to claim 2, characterized in that, Each low-temperature condensation strip (5) is cut into multiple strips along its length.

4. The novel intake manifold structure according to claim 1, characterized in that, The end of the liquid accumulation chamber (3) away from the opening of the main air intake pipe (1) is inclined downward.

5. The novel intake manifold structure according to claim 1, characterized in that, The electric heating jacket (6) is made of silicone electric heating pads.

6. The novel intake manifold structure according to claim 1, characterized in that, The main intake pipe (1) and each intake branch pipe (2) are made of engineering plastics.

7. A novel intake manifold structure according to claim 1, characterized in that, The outer wall of the intake manifold (1) is provided with a temperature sensor (7) for detecting its surface temperature.

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