A throttle valve

Abstract

The utility model discloses a throttle, including throttle body and the air inlet channel of setting in the throttle body, and the one end of throttle body is connected with air filter, and the other end of throttle body is connected with air intake manifold, and the leaf of spring is rotatably installed in the throttle body, and the leaf of spring is located in the air inlet channel, and at least two oil atomizers are installed on the throttle body, and the oil rail is connected between the oil atomizer, and the action of cooperation is executed according to ECU instruction between multiple oil atomizers, and it is guaranteed that the oil supply is always executed in the optimal state. When the engine is in high speed, big load condition, such as urgent acceleration, climbing, the fuel demand will increase sharply, and the single oil atomizer is prone to the problem of insufficient oil supply. And the multiple oil atomizers work together can quickly provide sufficient fuel, avoid power interruption or power shortage, so that the engine can stably output power under different conditions.

Description

Technical Field

[0001] This utility model relates to the field of throttle valve technology, and more particularly to a throttle valve. Background Technology

[0002] During the operation of an internal combustion engine, air enters the combustion chamber through the intake system. As a key component controlling the amount of air entering the engine, the throttle valve affects the engine's operating state by adjusting the airflow into the engine. A traditional throttle valve typically consists of a rotatable throttle plate installed in the intake manifold. This throttle plate is fixed to a throttle shaft connected to it by screws, and the throttle shaft drives the throttle plate to rotate.

[0003] Some throttle bodies or intake systems are equipped with only a single fuel injector. This configuration can easily lead to severe fuel supply imbalances when used with high-speed engines or two-stroke engines. Utility Model Content

[0004] The purpose of this invention is to provide a throttle valve to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a throttle body, including a throttle body and an intake passage disposed within the throttle body, one end of the throttle body being connected to an air filter, the other end of the throttle body being connected to an intake manifold, a spring being rotatably mounted inside the throttle body, the spring being located within the intake passage, and at least two fuel injectors being mounted on the throttle body, with a fuel rail connecting the two fuel injectors.

[0006] Compared to existing technologies, the advantages of this solution are: 1) In the mode of two or more injectors working together, when the engine is under high speed and heavy load conditions, such as rapid acceleration or climbing, the demand for fuel will increase sharply, and a single injector is prone to insufficient fuel supply. However, the coordinated work of two injectors can quickly provide sufficient fuel, avoid power interruption or insufficient power, and allow the engine to output stable power under different operating conditions.

[0007] 2) The fuel rail connecting the two injectors can stabilize the fuel pressure and distribute the fuel evenly. The fuel rail can store a certain amount of fuel, which can reduce the pressure pulsation generated when the fuel pump supplies fuel, so that the fuel pressure delivered to the two injectors can always remain stable. This can avoid the injection quantity from fluctuating due to fuel pressure fluctuations, and ensure that the injection quantity of the two injectors is precise and controllable, thereby making the engine run more smoothly and reducing problems such as idling vibration and speed fluctuation.

[0008] In a preferred embodiment of this application, the two injectors are located on both sides of the reed.

[0009] Compared with existing technologies, the beneficial effects of this solution are: 1) When idling or at low speed, the reed opening is small and the intake air volume is small. At this time, the injector on the side closer to the intake manifold can be controlled to inject a small amount of fuel. Because the airflow speed on this side is relatively stable, the small amount of fuel can be accurately mixed with the intake air, avoiding an overly rich mixture and ensuring stable idling speed; while at high speed and heavy load, the reed opens significantly, the intake air volume surges, the injectors on both sides can inject fuel at the same time, and the fuel rail can stabilize the fuel supply pressure, quickly provide sufficient fuel, avoid insufficient power, and allow the engine to output stable power under different operating conditions.

[0010] 2) The fuel injectors on both sides can form a two-way fuel injection layout. The fuel injected by one injector can be initially mixed with the fresh airflow that just enters the throttle body. When the mixture passes through the rotating reed, the disturbance of the reed will further mix the fuel and air. At the same time, the fuel injector on the other side can inject a second time into the airflow after passing through the reed, further refining the fuel mist. This interaction between dual fuel injection and airflow can make the fuel atomization more complete and the fuel-air mixture more uniform, avoiding local mixtures that are too rich or too lean. After the uniform fuel-air mixture enters the intake manifold, it will burn more completely in the cylinder.

[0011] In a preferred embodiment of this application, both injectors are located between the reed and the intake manifold.

[0012] Compared to existing technologies, the beneficial effects of this solution are: 1) After the reed opens, the high-speed airflow will quickly flow towards the intake manifold, where the two injectors simultaneously inject fuel, spraying fuel into the airflow from different points to form multiple fuel mists. These fuel mists can fully intertwine with the airflow and then pass through the intake manifold's distribution channel for further refinement and mixing. This method can avoid localized fuel accumulation and allow for a more uniform fuel-air mixture. A uniform mixture entering the cylinder results in more complete combustion, improving engine power conversion efficiency and reducing fuel waste caused by uneven combustion.

[0013] 2) When the engine is under high speed and heavy load, the reed will open significantly, and the intake air volume will increase sharply. The two injectors are located on the same side close to the intake manifold, which can deliver fuel to the intake manifold at close range. With the stable fuel rail supply pressure, sufficient fuel can be output quickly to match the surge in intake air volume.

[0014] In a preferred embodiment of this application, both injectors are located between the reed and the air filter.

[0015] Compared to existing technologies, this solution offers several advantages. After entering through the air filter, the air first encounters the fuel injected by the two injectors. Compared to injectors positioned behind the reed, this arrangement allows the fuel a longer path and more time to mix with the airflow. Furthermore, the dual injectors can spray fuel from different points, creating multiple fuel mists that thoroughly interweave with the intake air. As the subsequent airflow carries the mixture past the reed, the reed's rotation further agitates the fuel-air mixture, resulting in finer atomization and a more uniform mixture. This uniform mixture enters the cylinder and burns more completely, improving engine power and reducing emissions from incomplete combustion.

[0016] In a preferred embodiment of this application, a valve shaft is rotatably mounted on the throttle body, a reed is fixedly mounted on the valve shaft, one end of the valve shaft is connected to a detection mechanism for detecting the opening and closing angle of the reed, and the other end of the valve shaft is equipped with a reset mechanism for quickly restoring the reed.

[0017] Compared to existing technologies, the advantages of this solution are that the detection mechanism detects the opening degree of the reed rotation, achieving precise control of the intake air volume, and the reset mechanism quickly drives the valve shaft to rotate under the action of elastic force, so that the reed returns to the idle opening or closed state, quickly reducing the intake air volume.

[0018] As a preferred embodiment of this application, the throttle body is integrally formed with mounting posts for installing fuel injectors, and each mounting post is provided with a mounting hole that communicates with the intake passage, and the fuel injector is installed in the mounting hole.

[0019] Compared to existing technologies, this solution offers several advantages. The seamless, one-piece molded structure provides significantly higher mechanical strength than welded or bolted independent mounting brackets. It effectively resists engine vibrations (such as idling and high-speed vibrations), preventing injectors from loosening or shifting due to vibration and ensuring they maintain their preset mounting posture. The radial dimensions and length of the mounting post precisely match the injector's shape, creating a circumferential limit to prevent rotation during operation. This ensures the injection direction is always aligned with the target area of ​​the intake channel, preventing uneven fuel-air mixing caused by injection direction deviation.

[0020] In addition to the technical problems solved by this utility model, the technical features constituting the technical solution, and the advantages brought about by the technical features of these technical solutions as described above, other technical problems that this utility model can solve, other technical features contained in the technical solution, and the advantages brought about by these technical features will be further explained in detail with reference to the accompanying drawings. Attached Figure Description

[0021] Figure 1 This is a three-dimensional view of the throttle valve in this application.

[0022] Figure 2This is a cross-sectional view of the throttle valve in this application.

[0023] The following are the reference numerals: 01. Throttle body, 02. Intake passage, 03. Valve shaft, 04. Spring, 05. Detection mechanism, 06. Reset mechanism, 07. Mounting post, 08. Injector, 09. Fuel rail, 10. Fuel inlet line. Detailed Implementation

[0024] The technical solutions in the embodiments of this utility model will now be clearly and completely described with reference to the accompanying drawings.

[0025] Example 1

[0026] Please see Figure 1 , 2 As shown, this embodiment provides a throttle body, including a throttle body 01. One end of the throttle body 01 is connected to an air filter, and the other end is connected to an intake manifold. A circular intake channel 02 is provided inside the throttle body 01. A valve shaft 03 is rotatably mounted on the throttle body 01, rotating radially along the intake channel 02. A spring 04 is fixedly mounted on the valve shaft 03 by fasteners, and the spring 04 is located within the intake channel 02. One end of the valve shaft 03 is connected to a detection mechanism 05 for detecting the opening angle of the spring 04, and the other end of the valve shaft 03 is equipped with a reset mechanism 06 for quickly restoring the spring 04. Both the reset mechanism 06 and the detection mechanism 05 are mounted on the throttle body 01. It should be noted that the aforementioned reset mechanism 06 is prior art, for example, publication number CN223062538U, entitled "A Cable Assembly for a Throttle Body," which will not be described further here.

[0027] The throttle body 01 has at least two mounting posts 07 integrally formed. Each mounting post 07 is provided with a mounting hole that is connected to the intake passage 02. A fuel injector 08 is installed in the mounting hole. A fuel rail 09 is connected between the two fuel injectors 08. The fuel rail 09 is connected to the inlet of the fuel injector 08. A fuel inlet pipe 10 is connected through the fuel rail 09. The two mounting posts 07 are located on both sides of the reed 04.

[0028] In this example, the reset mechanism 06 uses preload to keep the valve shaft 03 at a fixed angle, and the reed 04 is in the idle opening position, allowing only a small amount of air to pass through, which meets the engine idling requirements or is in the fully closed state (when the engine is off). When the driver presses the accelerator pedal or the engine ECU triggers adjustment based on load and speed signals, the detection mechanism 05 detects the opening angle of the reed 04, and air flows through the intake passage 02 into the intake manifold.

[0029] When the throttle is released (or the ECU commands to stop driving), the detection mechanism 05 releases the force, and the elastic restoring force of the reset mechanism 06 overcomes the friction between the valve shaft 03 and the bearing, causing the valve shaft 03 to rotate in the opposite direction. The reed 04 quickly returns to the initial idle speed opening, preventing excessive intake air volume from causing the engine speed to run out of control.

[0030] The fuel pump delivers fuel to the fuel rail 09 via the fuel inlet line 10. The fuel pressure inside the fuel rail 09 remains stable, ensuring consistent injection pressure from the two injectors 08. Since the two injectors 08 are mounted on both sides of the reed 04, the fuel, after being sprayed from the injector nozzles, directly enters the intake airflow within the intake passage 02, forming a fine fuel mist. Simultaneously, the rotation of the reed 04 slightly disturbs the intake airflow (similar to a spoiler effect), further promoting uniform mixing of the fuel mist and air. The symmetrical arrangement of the injectors 08 on both sides avoids uneven mixing caused by unilateral injection, ensuring a uniform concentration of the air-fuel mixture entering the intake manifold, laying the foundation for improved cylinder combustion efficiency.

[0031] Example 2

[0032] The difference between this embodiment and embodiment 1 is that both mounting posts 07 are located on one side of the reed 04, that is, the two injectors 08 are located between the reed 04 and the intake manifold, or the two injectors 08 are located between the reed 04 and the air filter.

[0033] Therefore, two fuel injectors 08 are installed on the throttle body 01, forming a primary and secondary fuel injection mode. When the engine is under high speed and heavy load conditions (such as rapid acceleration or hill climbing), the fuel demand increases dramatically, and a single fuel injector 08 is prone to insufficient fuel supply. The dual fuel injectors 08 working together can quickly provide sufficient fuel, avoiding power interruption or insufficient power, allowing the engine to output stable power under different operating conditions. The two fuel injectors 08 can inject fuel into the throttle intake passage 02 from different angles. The high-speed intake airflow will fully collide with the fuel injected from both points, allowing the fuel to atomize faster and the atomized particles to be finer and more uniform. This superior atomization effect allows for more complete mixing of fuel and air, avoiding excessively rich or lean mixtures in certain areas, laying the foundation for complete combustion in the cylinder and reducing the problem of low combustion efficiency caused by uneven mixing. Simultaneously, in conjunction with the intake air volume controlled by the throttle, the air-fuel ratio can be controlled more precisely, further improving combustion stability.

[0034] If the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0035] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A throttle body, comprising a throttle body and an intake passage disposed within the throttle body, one end of the throttle body being connected to an air filter, and the other end of the throttle body being connected to an intake manifold, wherein a spring is rotatably mounted within the throttle body and the spring is located within the intake passage, characterized in that, At least two fuel injectors are installed on the throttle body, and a fuel rail connects the two fuel injectors.

2. The throttle valve according to claim 1, characterized in that: The two injectors are located on either side of the reed.

3. The throttle valve according to claim 1, characterized in that: Both injectors are located between the reed and the intake manifold.

4. The throttle valve according to claim 1, characterized in that: Both injectors are located between the reed and the air filter.

5. The throttle valve according to claim 1, characterized in that: A valve shaft is rotatably mounted on the throttle body, and a reed is fixedly mounted on the valve shaft. One end of the valve shaft is connected to a detection mechanism that detects the opening and closing angle of the reed, and the other end of the valve shaft is equipped with a reset mechanism that allows the reed to quickly return to its original position.

6. The throttle valve according to claim 1, characterized in that: The throttle body has an integrally formed mounting post for installing fuel injectors. Each mounting post has a mounting hole that communicates with the intake passage, and the fuel injector is installed in the mounting hole.

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