Lengthened oil-gas dual-purpose electric injection carburetor

Abstract

The utility model belongs to the field of internal combustion engines, and provides a lengthened oil-gas dual-purpose electric injection carburetor which comprises a body, a throttle valve, a gas pipe and an oil injection nozzle. Wherein the body forms an airflow channel with two open ends, and an air inlet end flange and an air outlet end flange which are positioned at two ends of the airflow channel, the airflow channel comprises a first straight pipe section, a second straight pipe section and a third straight pipe section, and the diameters of the first straight pipe section and the third straight pipe section are greater than the diameter of the second straight pipe section; the length of the second straight pipe section is at least five times that of the first straight pipe section; the throttle valve is rotationally arranged in the first straight pipe section and used for controlling the opening degree of the airflow channel. The gas pipe is communicated with the second straight pipe section and is used for supplying gas into the gas flow channel; a communication port of the gas pipe and the second straight pipe section is positioned at the tail end of the second straight pipe section and is close to the third straight pipe section; the oil nozzle communicates with the third straight pipe section and is used for supplying fuel oil into the airflow channel.

Description

Technical Field

[0001] This application belongs to the field of internal combustion engines, and in particular relates to an extended type of dual-purpose (oil and gas) electronically injected carburetor. Background Technology

[0002] In traditional carburetors, the throttle valve plays a crucial role, regulating the airflow into the engine according to the driver's needs. However, in actual operation, due to the mechanical characteristics of the traditional throttle valve structure and the complexity of the carburetor's internal aerodynamics, changes in the gap between the throttle valve's edge and the carburetor passages during opening or closing cause sudden changes in airflow speed and direction. This change not only generates eddies and turbulence but also creates pressure fluctuations within the carburetor. These unstable airflow and pressure fluctuations directly affect the fuel-air mixture, leading to uneven mixture concentration. Therefore, it is necessary to address these technical problems. Summary of the Invention

[0003] The purpose of this application is to provide an extended dual-purpose (oil and gas) electronically controlled carburetor to solve the technical problem of uneven air-fuel mixture in existing carburetors.

[0004] To achieve the above objectives, the technical solution adopted in this application is: to provide an extended dual-purpose (oil and gas) electronic fuel injection carburetor, comprising:

[0005] The body forms an airflow channel with open ends and an inlet flange and an outlet flange located at both ends of the airflow channel. The airflow channel includes a first straight pipe section, a second straight pipe section, and a third straight pipe section connected sequentially from the inlet flange to the outlet flange. The diameters of the first straight pipe section and the third straight pipe section are both larger than the diameter of the second straight pipe section, and the length of the second straight pipe section is at least five times the length of the first straight pipe section.

[0006] The throttle valve is rotatably mounted in the first straight pipe section and close to the outer end face of the intake flange, and is used to control the opening of the airflow passage;

[0007] A gas pipe is connected to the second straight pipe section and is used to supply gas to the gas flow channel. The connection port between the gas pipe and the second straight pipe section is located at the end of the second straight pipe section and close to the third straight pipe section.

[0008] The fuel injector is connected to the third straight pipe section and is used to supply fuel to the airflow passage.

[0009] Optionally, the first straight pipe section and the second straight pipe section are coaxially arranged.

[0010] Optionally, the third straight pipe section and the second straight pipe section are arranged at an angle.

[0011] Optionally, the central axis of the third straight pipe section forms an angle of 150° to 180° with the central axis of the second straight pipe section.

[0012] Optionally, the outlet orientation of the gas pipe forms an angle of less than 45° with the axial direction of the second straight pipe section.

[0013] Optionally, the third straight pipe section forms a flared end at the end furthest from the second straight pipe section.

[0014] Optionally, the extended dual-fuel (oil and gas) electronic fuel injection carburetor further includes a motor driven by the throttle valve and used to drive the throttle valve, and a first sensor connected to the body and used to detect the rotation angle of the throttle valve.

[0015] Optionally, the extended dual-purpose fuel injection carburetor also includes a second sensor connected to the main body;

[0016] The detection end of the second sensor extends into the second straight pipe section and is used to detect the intake air temperature and pressure within the second straight pipe section.

[0017] The beneficial effects of the extended dual-purpose fuel-air fuel injection carburetor provided in this application are as follows: Compared with the prior art, in the extended dual-purpose fuel-air fuel injection carburetor provided in this application, since the diameters of the first and third straight pipe sections are both larger than the diameter of the second straight pipe section, and since the length of the second straight pipe section is at least five times the length of the first straight pipe section, on the one hand, the flow velocity of the airflow from the first straight pipe section into the second straight pipe section will be accelerated, thus enabling the air to mix more effectively with the fuel gas flowing into the second straight pipe section or the fuel oil flowing into the third straight pipe section; on the other hand, the air flowing from the first straight pipe section into the second straight pipe section itself can form better flow uniformity during its long-distance flow in the second straight pipe section. Therefore, the extended dual-purpose fuel-air fuel injection carburetor provided in this application can more uniformly mix air with fuel gas or fuel oil, which is far superior to the prior art. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the extended oil-gas dual-purpose electronic fuel injection carburetor in the embodiments of this application;

[0020] Figure 2 This is a schematic diagram of the main structure of the extended oil-gas dual-purpose electronic fuel injection carburetor in the embodiments of this application;

[0021] Figure 3 For along Figure 2 Cross-sectional view of line AA in the middle.

[0022] In the figure, the following labels are used: 100, body; 101, airflow channel; 102, inlet flange; 103, outlet flange; 111, first straight pipe section; 112, second straight pipe section; 113, third straight pipe section; 200, throttle valve; 300, gas pipe; 400, fuel injector; 500, motor; 600, first sensor; 700, second sensor. Detailed Implementation

[0023] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0024] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0025] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0027] Please refer to the following: Figures 1 to 3 This application now describes an extended dual-purpose (gasoline and fuel injection) carburetor. The extended dual-purpose (gasoline and fuel injection) carburetor includes a body 100, a throttle valve 200, a fuel line 300, and a fuel injector 400. Wherein:

[0028] The body 100 forms an airflow channel 101 with open ends and an inlet flange 102 and an outlet flange 103 located at both ends of the airflow channel 101. The airflow channel 101 includes a first straight pipe section 111, a second straight pipe section 112, and a third straight pipe section 113 connected sequentially from the inlet flange 102 to the outlet flange 103. The diameters of the first straight pipe section 111 and the third straight pipe section 113 are both larger than the diameter of the second straight pipe section 112, and the length of the second straight pipe section 112 is the same as the length of the first straight pipe section 111. The throttle body 200 is rotatably disposed within the first straight pipe section 111 and near the outer end face of the intake flange 102, used to control the opening of the airflow passage 101; the gas pipe 300 is connected to the second straight pipe section 112 and used to supply gas to the airflow passage 101, and the connection port of the gas pipe 300 and the second straight pipe section 112 is located at the end of the second straight pipe section 112 and near the third straight pipe section 113; the fuel injector 400 is connected to the third straight pipe section 113 and used to supply fuel to the airflow passage 101.

[0029] According to the structure provided in this embodiment, in the extended dual-purpose fuel-air fuel injection carburetor provided in this embodiment, since the diameters of the first straight pipe section 111 and the third straight pipe section 113 are both larger than the diameter of the second straight pipe section 112, and since the length of the second straight pipe section 112 is at least five times the length of the first straight pipe section 111, on the one hand, when the airflow flows from the first straight pipe section 111 into the second straight pipe section 112, its flow velocity will increase, thus enabling the air to mix more effectively with the fuel gas flowing into the second straight pipe section 112 or the fuel oil flowing into the third straight pipe section 113; on the other hand, the air flowing from the first straight pipe section 111 into the second straight pipe section 112 itself can form better flow uniformity during the long-distance flow process of the second straight pipe section 112. Therefore, the extended dual-purpose fuel-air fuel injection carburetor provided in this embodiment can more uniformly mix air with fuel gas or fuel oil, which is far superior to the prior art.

[0030] Please refer to the above-described structure provided in this application. Figures 1 to 3 The first straight pipe section 111 and the second straight pipe section 112 are coaxially arranged. According to the structure provided in this embodiment, the coaxial arrangement of the first straight pipe section 111 and the second straight pipe section 112 can maintain good flow stability of air as it enters the second straight pipe section 112 from the first straight pipe section 111. This is beneficial for the extended oil-air dual-purpose electronic fuel injection carburetor provided in this embodiment to form a more uniform mixing effect.

[0031] Please refer to the above-described structure provided in this application. Figures 1 to 3The third straight pipe section 113 and the second straight pipe section 112 are arranged at an angle. According to the structure provided in this embodiment, since the fuel injector 400 is connected to the third straight pipe section 113, the angled arrangement of the third straight pipe section 113 and the second straight pipe section 112 allows the fuel injected from the fuel injector 400 to be more fully and evenly mixed with the air from the second straight pipe section 112. This is beneficial for the extended fuel-air dual-purpose electronic fuel injection carburetor provided in this embodiment to form a more uniform mixing effect.

[0032] Please refer to the above-described structure provided in this application. Figures 1 to 3 The central axis of the third straight pipe section 113 forms an angle of 150° to 180° with the central axis of the second straight pipe section 112. According to the structure provided in this embodiment, the angle setting of the third straight pipe section 113 and the second straight pipe section 112 allows the extended oil-gas dual-purpose electronic fuel injection carburetor provided in this embodiment to achieve a more uniform mixing effect. For ease of explanation, this embodiment uses an example where the central axis of the third straight pipe section 113 forms an angle of 160.70° with the central axis of the second straight pipe section 112.

[0033] Please refer to the above-described structure provided in this application. Figures 1 to 3 The outlet direction of the gas pipe 300 forms an angle of less than 45° with the axial direction of the second straight pipe section 112. According to the structure provided in this embodiment, the angle between the outlet direction of the gas pipe 300 and the axial direction of the second straight pipe section 112 allows the extended dual-purpose fuel-air fuel injection carburetor provided in this embodiment to achieve a more uniform mixing effect. For ease of explanation, this embodiment uses an angle of 44.30° between the outlet direction of the gas pipe 300 and the axial direction of the second straight pipe section 112 as an example.

[0034] Please refer to the above-described structure provided in this application. Figures 1 to 3 The third straight pipe section 113 forms a flared end at the end furthest from the second straight pipe section 112. According to the structure provided in this embodiment, since the gas velocity is low on the larger end of the flared end, the flared end in the third straight pipe section 113 effectively prevents fuel entering the third straight pipe section 113 from escaping into the second straight pipe section 112. This facilitates a more uniform mixing effect in the extended dual-fuel (oil and gas) electronic fuel injection carburetor provided in this embodiment.

[0035] Please refer to the above-described structure provided in this application. Figures 1 to 3The extended dual-fuel (gasoline and air-fuel) electronic fuel injection carburetor also includes a motor 500 driven by and connected to the throttle valve 200 for driving the throttle valve 200, and a first sensor 600 connected to the body 100 for detecting the rotation angle of the throttle valve 200. According to the structure provided in this embodiment, the motor 500 and the first sensor 600, respectively connected to the throttle valve 200, can be precisely controlled by an electronic control unit (ECU). This allows the throttle valve 200 to rotate through a more precise angle and makes the air-fuel mixture more evenly matched with the air-fuel ratio, thus contributing to a more uniform mixing effect in the extended dual-fuel (gasoline and air-fuel) electronic fuel injection carburetor provided in this embodiment.

[0036] Please refer to the above-described structure provided in this application. Figures 1 to 3 The extended dual-purpose air-fuel carburetor also includes a second sensor 700 connected to the main body 100; the detection end of the second sensor 700 extends into the second straight pipe section 112 and is used to detect the intake air temperature and pressure within the second straight pipe section 112. According to the structure provided in this embodiment, the second sensor 700, with its detection end extending into the second straight pipe section 112, can quickly and accurately obtain the pressure and temperature of the flowing air. This allows the electronic control unit (ECU) to control the throttle valve 200 to rotate through a more precise angle, which is beneficial for the extended dual-purpose air-fuel carburetor provided in this embodiment to achieve a more uniform mixing effect.

[0037] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An extended-length dual-purpose (oil and gas) electronically controlled carburetor, characterized in that, include: The body (100) forms an airflow channel (101) with open ends and an inlet flange (102) and an outlet flange (103) located at both ends of the airflow channel (101). The airflow channel (101) includes a first straight pipe section (111), a second straight pipe section (112), and a third straight pipe section (113) connected sequentially from the inlet flange (102) to the outlet flange (103). The diameters of the first straight pipe section (111) and the third straight pipe section (113) are both larger than the diameter of the second straight pipe section (112). The length of the second straight pipe section (112) is at least five times the length of the first straight pipe section (111). Throttle valve (200) is rotatably disposed within the first straight pipe section (111) and close to the outer end face of the intake flange (102) to control the opening of the airflow passage (101); A gas pipe (300) is connected to the second straight pipe section (112) and is used to supply gas to the gas flow channel (101). The connection between the gas pipe (300) and the second straight pipe section (112) is located at the end of the second straight pipe section (112) and close to the third straight pipe section (113). The fuel injector (400) is connected to the third straight pipe section (113) and is used to supply fuel to the airflow passage (101).

2. The extended dual-purpose (oil and gas) electronically controlled carburetor as described in claim 1, characterized in that: The first straight pipe section (111) and the second straight pipe section (112) are coaxially arranged.

3. The extended dual-purpose (oil and gas) electronically controlled carburetor as described in claim 2, characterized in that: The third straight pipe section (113) and the second straight pipe section (112) are set at an angle.

4. The extended dual-purpose (oil and gas) electronically controlled carburetor as described in claim 3, characterized in that: The central axis of the third straight pipe section (113) forms an angle of 150° to 180° with the central axis of the second straight pipe section (112).

5. The extended dual-purpose (oil and gas) electronically controlled carburetor as described in claim 1, characterized in that: The outlet orientation of the gas pipe (300) forms an angle of less than 45° with the axial direction of the second straight pipe section (112).

6. The extended dual-purpose (oil and gas) electronically controlled carburetor as described in claim 1, characterized in that: The third straight pipe section (113) forms a flared opening at the end away from the second straight pipe section (112).

7. The extended dual-purpose (oil and gas) electronically controlled carburetor as described in claim 1, characterized in that: The extended-type dual-purpose oil and gas fuel injection carburetor also includes a motor (500) that is driven to the throttle valve (200) and used to drive the throttle valve (200), and a first sensor (600) that is connected to the body (100) and used to detect the rotation angle of the throttle valve (200).

8. The extended dual-purpose (oil and gas) electronically controlled carburetor as described in claim 7, characterized in that: The extended dual-purpose oil and gas fuel injection carburetor also includes a second sensor (700) connected to the main body (100). The detection end of the second sensor (700) extends into the second straight pipe section (112) and is used to detect the intake air temperature and pressure inside the second straight pipe section (112).

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