Variable-damping runner automobile intake manifold injection molding

Abstract

The utility model discloses a variable damping runner's automobile air intake manifold injection moulded part, and concretely relates to automobile air intake manifold technical field, including support plate, be provided with the shunt delivery assembly on the support plate, the shunt delivery assembly includes the gas collecting cylinder of setting up in support plate one side, the middle part of gas collecting cylinder is embedded with filter core, the outside of gas collecting cylinder is provided with two first discharge pipes. The utility model discloses a variable damping runner by main channel, branch channel and electromagnetic butt joint valve, and the branch channel is closed at low speed, avoids low speed lack of power, and the branch channel is opened at high speed, avoids appearing the problem of high -speed gas supply shortage, and filter core secondary filtration intercepts impurity, reduces engine wear and tear, and the pressure relief port prevents high pressure damage component, and the drain pipe port check valve discharges condensed water, avoids cylinder liquid strike risk, and ensures that air intake is stable.

Description

Technical Field

[0001] This utility model relates to the field of automotive intake manifold technology, and more specifically, to an injection-molded automotive intake manifold with a variable damping flow channel. Background Technology

[0002] In the automotive industry, the intake manifold of a car engine is one of the most important components in the engine's intake system. It determines the engine's intake efficiency and the uniformity of air filling in each cylinder, and has a significant impact on the overall performance of the engine.

[0003] Traditional automotive engine intake manifolds are manufactured using cast iron or aluminum alloy through casting, which has significant drawbacks such as rough surface, high intake resistance, and heavy weight. To reduce weight, lower fuel consumption, improve engine performance, and reduce emissions, a variable damping flow channel injection-molded automotive intake manifold is proposed. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides an injection molded part of an automotive intake manifold with a variable damping flow channel, which aims to solve the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a variable damping flow channel automotive intake manifold injection molded part, including a support plate, on which a flow diversion and conveying assembly is provided; The diversion and conveying assembly includes an air-gathering cylinder disposed on one side of the support plate, and a filter element is embedded in the middle of the air-gathering cylinder; Two first discharge pipes are provided on the outside of the gas-gathering cylinder, and a second discharge pipe is provided on one side of each of the two first discharge pipes, and each of the first discharge pipes and the second discharge pipe is connected to the gas-gathering cylinder. Both the first and second discharge pipes are equipped with docking valves at the ends furthest from the gas-gathering cylinder.

[0006] Optionally, in one possible implementation, each of the two first discharge pipes is provided with a first diversion pipe, each of the two second discharge pipes is provided with a second diversion pipe, and each of the two first diversion pipes is provided with a third diversion pipe on one side, and each of the third diversion pipes is connected to the corresponding first discharge pipe. An air inlet is provided on one side of the bottom of the gas-gathering cylinder, and a liquid outlet is provided on the other side of the bottom of the gas-gathering cylinder. One end of the filter element is provided with a pressure relief port, and the pressure relief port is threadedly connected to the filter element. The filter element is embedded in the middle of the gas-gathering cylinder, and valves are embedded at the connection points between the first discharge pipe and the second discharge pipe and the gas-gathering cylinder, respectively. The technical effects and advantages of this utility model are as follows: The main channel, branch channels, and electromagnetic docking valve form a variable damping flow channel. The branch channels are closed at low speeds to avoid insufficient power at low speeds; the branch channels are opened at high speeds to avoid insufficient air supply at high speeds. The filter element performs secondary filtration to intercept impurities and reduce engine wear; the pressure relief port prevents high pressure from damaging components; the drain pipe port has a one-way valve to drain condensate, avoiding the risk of cylinder liquid slugging and ensuring stable air intake. Attached Figure Description

[0007] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments will be briefly described below. Obviously, the drawings described below are only drawings of some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams and are not intended to limit the actual size of the product, the actual flow of the method, the actual timing of the signal, etc. involved in the embodiments of this disclosure.

[0008] Figure 1 This is a front view of the overall structure of this utility model.

[0009] Figure 2 This is a side view of the overall structure of this utility model.

[0010] Figure 3 This is a top view of the overall structure of this utility model.

[0011] The attached diagram is labeled as follows: 1. Support plate; 2. Air-gathering cylinder; 3. Filter element; 4. First discharge pipe; 5. Second discharge pipe; 6. First diversion pipe; 7. Second diversion pipe; 8. Third diversion pipe; 9. Connecting valve; 10. Air inlet; 11. Pressure relief port; 12. Liquid drain port. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0013] This embodiment discloses a variable damping flow channel automotive intake manifold injection molding part, which aims to solve the problems of traditional cast iron or aluminum alloy cast intake manifolds having rough surfaces, high air intake resistance, and large product weight, which in turn affect engine intake efficiency, increase fuel consumption, and are not conducive to reducing emissions.

[0014] Specifically, the variable damping flow channel automotive intake manifold injection molded part is based on support plate 1 for installation and support. The various functional components are integrated and assembled around support plate 1, including the following core components: As the core functional module of the intake manifold, the air diversion and delivery assembly is responsible for collecting, filtering, diverting and delivering the intake air. It includes an air collecting cylinder 2 fixed on one side of the support plate 1. The air collecting cylinder 2 has a cylindrical hollow structure and a filter element 3 is embedded in the center. The filter element 3 is made of high temperature resistant and high air permeability composite fiber material, which can effectively filter dust and impurities in the intake air and prevent particulate matter from entering the engine and affecting its service life. Two first discharge pipes 4 are symmetrically arranged on the outer side of the air-gathering cylinder 2. A second discharge pipe 5 is arranged parallel to one side of each of the two first discharge pipes 4. One end of the first discharge pipe 4 and the second discharge pipe 5 are connected to the side wall of the air-gathering cylinder 2 to form the main channel for air intake and diversion. To achieve damping adjustment and multi-path diversion, a first diversion pipe 6 is connected to the middle of the two first discharge pipes 4, and a second diversion pipe 7 is vertically connected to the middle of the two second discharge pipes 5. At the same time, a third diversion pipe 8 is connected to one side of each first diversion pipe 6, and one end of the third diversion pipe 8 is connected to the side wall of the corresponding first discharge pipe 4 away from the gas collector 2, forming a multi-channel structure of "main channel and branch channel". In addition, docking valves 9 are installed at the ends of the first discharge pipe 4 and the second discharge pipe 5 away from the gas collector 2. The docking valves 9 are electromagnetically controlled valves, and the valve opening can be controlled by the vehicle ECU electronic control unit to adjust the air intake flow of each channel and achieve variable damping. An air inlet 10 is provided on one side of the bottom of the air collector 2. The air inlet 10 is connected to the air outlet of the car air filter through a pipe to provide an air source for the entire intake manifold. A drain pipe 12 is provided on the other side of the bottom of the air-collecting cylinder 2. A one-way valve is installed on the drain pipe 12 to drain the liquid such as water generated by condensation in the air-collecting cylinder 2, so as to prevent the liquid from entering the engine. The filter element 3 is provided with a pressure relief port 11 at the end away from the bottom of the air-gathering cylinder 2. The pressure relief port 11 is connected to the end of the filter element 3 by a thread. A pressure safety valve is installed inside the pressure relief port 11. When the air pressure in the air-gathering cylinder 2 exceeds the preset value, the safety valve will automatically open to relieve pressure and protect the air intake system components from high pressure damage. At the same time, manual adjustment valves are embedded inside the connection between the first discharge pipe 4 and the second discharge pipe 5 and the air-gathering cylinder 2, which can be manually controlled to open or close the main channel during maintenance or debugging.

[0015] The support plate 1, air-gathering cylinder 2, first exhaust pipe 4, second exhaust pipe 5, first split pipe 6, second split pipe 7, and third split pipe 8 of this intake manifold injection molding part are all integrally processed using PA66 and glass fiber reinforced materials through injection molding. This material has the characteristics of high strength, high temperature resistance, low specific gravity, and smooth surface, which can effectively reduce intake resistance and reduce product weight. The specific working principle is as follows: When the car engine is running, the air is filtered by the air filter and enters the air-gathering cylinder 2 through the air intake 10. The filter element 3 in the air-gathering cylinder 2 performs secondary filtration on the intake air to remove the tiny impurities remaining in the air. At the same time, the air-gathering cylinder 2 gathers the dispersed intake air to form a stable airflow.

[0016] After the filtered intake air forms a stable pressure in the air-gathering cylinder 2, it enters the two main channels, the first exhaust pipe 4 and the second exhaust pipe 5 respectively. When the engine is in a low-speed, low-load condition, such as idling or low-speed driving, the vehicle ECU controls the docking valve 9 to reduce the opening and closes the control valves corresponding to the first split pipe 6, the second split pipe 7, and the third split pipe 8. The ECU controls the solenoid valves on the first split pipe 6, the second split pipe 7, and the third split pipe 8. At this time, the intake air is mainly delivered through the main channels of the first exhaust pipe 4 and the second exhaust pipe 5. The flow channel cross-section is small and the damping is large, which can increase the intake airflow speed, enhance the atomization effect of the air-fuel mixture in the cylinder, and improve the low-speed torque of the engine. When the engine is under high speed and high load conditions, such as high speed driving and rapid acceleration, the ECU controls the docking valve 9 to increase the opening, and at the same time opens the control valves of the first split pipe 6, the second split pipe 7, and the third split pipe 8. At this time, the intake air can be delivered through multiple paths through the main channel and each branch channel. The total cross-section of the flow channel increases, the damping decreases, and the intake air flow increases, which meets the engine's demand for a large amount of intake air under high speed and high load, and improves the engine's maximum power. In addition, when the air pressure inside the air collector 2 rises to the preset pressure of the pressure relief port 11 due to abnormal conditions, such as air filter blockage or valve failure, the safety valve of the pressure relief port 11 will automatically open to discharge the excess air pressure and prevent damage to components such as the air collector 2 and the discharge pipe due to high pressure. The condensate generated inside the air collector 2 will be automatically discharged through the one-way valve of the drain pipe 12 to prevent the liquid from entering the engine cylinder with the intake air and avoid liquid slugging.

[0017] In use, the entire intake manifold injection molded part is fixed to the side of the cylinder block of the car engine through the preset mounting holes on the support plate 1; then the intake port 10 is connected to the air filter outlet pipe, and the docking valves 9 at the ends of the first exhaust pipe 4 and the second exhaust pipe 5 are connected to the intake manifold interface of the engine. The intake ports of each cylinder are connected through flanges to complete the assembly; after assembly, the car ECU initializes and debugs each solenoid valve, docking valve 9, and valves on the split pipe, sets the valve opening degree and flow channel switching logic under different working conditions, and ensures the stable operation of the intake manifold.

[0018] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A variable damping flow channel injection molded part for an automotive intake manifold, comprising a support plate (1), characterized in that: A diversion and conveying assembly is provided on the support plate (1); The diversion and conveying assembly includes an air-gathering cylinder (2) disposed on one side of the support plate (1), and a filter element (3) is embedded in the middle of the air-gathering cylinder (2). Two first discharge pipes (4) are provided on the outside of the gas-gathering cylinder (2), and a second discharge pipe (5) is provided on one side of each of the two first discharge pipes (4), and each of the first discharge pipes (4) and the second discharge pipe (5) is connected to the gas-gathering cylinder (2). Both the first discharge pipe (4) and the second discharge pipe (5) are equipped with docking valves (9) at the ends away from the gas-gathering cylinder (2).

2. The automotive intake manifold injection molded part with a variable damping flow channel according to claim 1, characterized in that: A first diversion pipe (6) is provided on each of the two first discharge pipes (4), and a second diversion pipe (7) is provided on each of the two second discharge pipes (5).

3. The automotive intake manifold injection molded part with a variable damping flow channel according to claim 2, characterized in that: A third diversion pipe (8) is provided on one side of each of the two first diversion pipes (6), and each of the third diversion pipes (8) is connected to the corresponding first discharge pipe (4).

4. The automotive intake manifold injection molded part with a variable damping flow channel according to claim 1, characterized in that: An air inlet (10) is provided on one side of the bottom of the gas-gathering cylinder (2), and a drain outlet (12) is provided on the other side of the bottom of the gas-gathering cylinder (2).

5. The automotive intake manifold injection molded part with a variable damping flow channel according to claim 1, characterized in that: One end of the filter element (3) is provided with a pressure relief port (11), and the pressure relief port (11) is threadedly connected to the filter element (3).

6. The automotive intake manifold injection molded part with a variable damping flow channel according to claim 1, characterized in that: The filter element (3) is embedded in the middle of the air-gathering cylinder (2), and valves are embedded at the connection points of the first discharge pipe (4) and the second discharge pipe (5) with the air-gathering cylinder (2).

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