Oil-gas dual-purpose electric injection carburetor

Abstract

The utility model belongs to the field of internal combustion engines, and provides an oil-gas dual-purpose electric injection carburetor. Comprising a body, a throttle valve, a motor, a first sensor, a gas pipe, a second sensor and an electric fuel injection nozzle. Wherein the body forms an air flow channel with two open ends, and an air inlet end flange and an air outlet end flange positioned at two ends of the air flow channel; a first boss used for installing a motor, a second boss used for installing a first sensor, a third boss used for being connected with a gas pipe, a fourth boss used for installing a second sensor and a fifth boss used for installing an electric oil injection nozzle are further formed on the body.

Description

Technical Field

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

[0002] With the development of electronic control technology, electronic fuel injection carburetors have gradually replaced traditional carburetors. Through precise control of fuel injection by the electronic control unit (ECU), more efficient combustion and lower emissions can be achieved. However, most existing electronic fuel injection carburetors are designed for single-fuel systems, making it difficult to meet the needs of dual-fuel engines. Furthermore, because existing carburetors often contain multiple components, the assembly process is cumbersome, and the high precision requirements between components lead to increased production costs and low assembly efficiency. Therefore, it is necessary to solve these technical problems. Summary of the Invention

[0003] The purpose of this application is to provide a dual-purpose (oil and gas) electronically controlled carburetor to solve the technical problem of low assembly efficiency of carburetors in the prior art.

[0004] To achieve the above objectives, the technical solution adopted in this application is: to provide a 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;

[0006] Throttle valve, rotatably disposed within the airflow passage and used to control the opening degree of the airflow passage;

[0007] An electric motor is connected to the throttle valve and is used to drive the throttle valve. A first boss for mounting the electric motor is also formed on the body.

[0008] A first sensor is connected to the body and used to detect the rotation angle of the throttle valve. A second protrusion for mounting the first sensor is also formed on the body.

[0009] A gas pipe is connected to the body and used to supply gas to the gas flow channel. A third protrusion is also formed on the body for connecting the gas pipe. A channel for communicating between the gas pipe and the gas flow channel is formed inside the third protrusion.

[0010] The second sensor is connected to the body and is used to detect the gas temperature and gas pressure in the airflow channel. A fourth protrusion for mounting the second sensor is also formed on the body.

[0011] An electronic fuel injector is connected to the body and communicates with the airflow channel to inject fuel into the airflow channel. A fifth protrusion for mounting the electronic fuel injector is also formed on the body.

[0012] Optionally, the body also forms an inlet pipe communicating with the airflow channel, and the end of the inlet pipe away from the airflow channel is sealed to the nozzle outlet of the electronic fuel injector.

[0013] Optionally, the inlet pipe is set at an angle to both the horizontal and vertical center lines of the airflow channel.

[0014] Optionally, a sixth protrusion is also formed on the body at a distance from the fourth protrusion, and the sixth protrusion is connected to the second sensor.

[0015] Optionally, the first sensor and the second boss are provided with corresponding threaded holes, and the first sensor is connected to the body by a threaded fastener that can be inserted into the threaded hole.

[0016] Optionally, a weight-reducing cavity for reducing the weight of the body is also formed on the second protrusion.

[0017] Optionally, the airflow channel includes a first straight pipe section, a tapered pipe section, and a second straight pipe section connected in sequence, wherein the first straight pipe section is close to the inlet flange, and the second straight pipe section is close to the outlet flange; the length of the first straight pipe section is 10mm to 80mm.

[0018] The diameter of the first straight pipe section is smaller than the diameter of the second straight pipe section.

[0019] Optionally, the center of the throttle valve is located in the first straight pipe section and near the intake flange.

[0020] Optionally, the center of the gas pipe is located at the interface between the first straight pipe section and the tapered pipe section.

[0021] Optionally, an opening is formed on the body for connecting the electronic fuel injector to the airflow passage, the opening having a portion located in the conical pipe section and a portion located in the second straight pipe section.

[0022] The beneficial effects of the dual-purpose oil-gas electronic fuel injection carburetor provided in this application are as follows: Compared with the prior art, in addition to forming an airflow channel for air supply and an inlet flange and an outlet flange connected to both ends of the airflow channel, the body of the dual-purpose oil-gas electronic fuel injection carburetor provided in this application also integrally forms a first boss for mounting the motor, a second boss for mounting the first sensor, a third boss for connecting the gas pipe, a fourth boss for mounting the second sensor, and a fifth boss for connecting the electronic fuel injector. This allows the motor, the first sensor, the gas pipe, the second sensor, and the electronic fuel injector to be quickly installed on the body with good installation stability, which is beneficial to significantly improving the assembly efficiency of the dual-purpose oil-gas electronic fuel injection carburetor in this application, far superior to the prior art. Attached Figure Description

[0023] 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.

[0024] Figure 1 A schematic diagram of the overall structure of the dual-purpose (oil and gas) electronic fuel injection carburetor provided in the embodiments of this application. Figure 1 ;

[0025] Figure 2 A schematic diagram of the overall structure of the dual-purpose (oil and gas) electronic fuel injection carburetor provided in the embodiments of this application. Figure 2 ;

[0026] Figure 3 This is a schematic diagram of the overall structure of the body in the embodiments of this application;

[0027] Figure 4 This is a schematic diagram of the main structure of a dual-purpose (oil and gas) electronically injected carburetor provided in an embodiment of this application.

[0028] Figure 5 For along Figure 4 Cross-sectional view of line AA in the middle.

[0029] The reference numerals in the figures are as follows: 100, body; 101, airflow channel; 102, inlet flange; 103, outlet flange; 104, first boss; 105, second boss; 106, third boss; 107, fourth boss; 108, fifth boss; 109, inlet pipe; 110, sixth boss; 111, first straight pipe section; 112, tapered pipe section; 113, second straight pipe section; 114, opening; 151, threaded hole; 152, weight reduction cavity; 200, throttle valve; 300, motor; 400, first sensor; 500, gas pipe; 600, second sensor; 700, electronic fuel injector. Detailed Implementation

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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 the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0034] Please also refer to Figures 1 to 5 This application now describes a dual-purpose (gasoline and fuel injection) carburetor. The dual-purpose carburetor includes a body 100, a throttle valve 200, a motor 300, a first sensor 400, a gas pipe 500, a second sensor 600, and an electronic fuel injector 700. Wherein:

[0035] The body 100 forms an airflow channel 101 with open ends and an intake flange 102 and an outlet flange 103 located at both ends of the airflow channel 101; a throttle valve 200 is rotatably disposed within the airflow channel 101 and is used to control the opening of the airflow channel 101; a motor 300 is drivenly connected to the throttle valve 200 and is used to drive the throttle valve 200, and a first boss 104 for mounting the motor 300 is also formed on the body 100; a first sensor 400 is connected to the body 100 and is used to detect the rotation angle of the throttle valve 200, and a second boss 105 for mounting the first sensor 400 is also formed on the body 100; a gas pipe 500 is connected to the body. The body 100 is used to supply gas to the airflow channel 101. A third boss 106 for connecting the gas pipe 500 is also formed on the body 100. A channel for connecting the gas pipe 500 and the airflow channel 101 is formed inside the third boss 106. A second sensor 600 is connected to the body 100 and is used to detect the gas temperature and gas pressure in the airflow channel 101. A fourth boss 107 for mounting the second sensor 600 is also formed on the body 100. An electronic fuel injector 700 is connected to the body 100 and communicates with the airflow channel 101 to inject fuel into the airflow channel 101. A fifth boss 108 for mounting the electronic fuel injector 700 is also formed on the body 100.

[0036] According to the structure provided in this embodiment, in the dual-purpose oil-gas electronic fuel injection carburetor provided in this embodiment, in addition to forming an airflow channel 101 for air supply and an inlet flange 102 and an outlet flange 103 connected to both ends of the airflow channel 101, the body 100 also integrally forms a first boss 104 for mounting the motor 300, a second boss 105 for mounting the first sensor 400, a third boss 106 for connecting the gas pipe 500, a fourth boss 107 for mounting the second sensor 600, and a fifth boss 108 for connecting the electronic fuel injector 700. This allows the motor 300, the first sensor 400, the gas pipe 500, the second sensor 600, and the electronic fuel injector 700 to be quickly installed on the body 100 with good installation stability, which is beneficial to significantly improve the assembly efficiency of the dual-purpose oil-gas electronic fuel injection carburetor in this embodiment, far superior to the prior art.

[0037] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 5 The main body 100 also has an inlet pipe 109 connected to the airflow channel 101, and the end of the inlet pipe 109 away from the airflow channel 101 is sealed to the nozzle outlet of the electronic fuel injector 700. According to the structure provided in this embodiment, the inlet pipe 109 provided on the main body 100 can make the airflow channel 101 and the electronic fuel injection pipe more convenient and stable to connect, which is beneficial to further improve the assembly efficiency of the dual-purpose oil-gas electronic fuel injection carburetor in this embodiment.

[0038] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 5 The inlet pipe 109 is angled to both the horizontal and vertical center lines of the airflow channel 101. According to the structure provided in this embodiment, the inlet pipe 109, in this form, allows the airflow channel 101 to be more easily adapted to the electronic fuel injector 700. This not only further improves the assembly efficiency of the dual-purpose (oil and gas) electronic fuel injection carburetor in this embodiment, but also helps to further improve the fuel delivery efficiency of the dual-purpose (oil and gas) electronic fuel injection carburetor in this embodiment.

[0039] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 5 The main body 100 also has a sixth protrusion 110 spaced apart from the fourth protrusion 107, and the sixth protrusion 110 is connected to the second sensor 600. According to the structure provided in this embodiment, the sixth protrusion 110 connected to the second sensor 600 can cooperate with the fourth protrusion 107 to provide stable support for the second sensor 600, which is beneficial to further improve the installation stability of the second sensor 600.

[0040] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 5 The first sensor 400 and the second boss 105 are provided with corresponding threaded holes 151. The first sensor 400 is connected to the body 100 by a threaded fastener that can be inserted into the threaded hole 151. According to the structure provided in this embodiment, the first sensor 400 can be connected to the body 100 more quickly and conveniently by using a threaded fastener that can be inserted into the threaded hole 151, which is beneficial to further improving the assembly efficiency of the dual-purpose oil-gas electronic fuel injection carburetor in this embodiment. It is understood that the threaded fastener described in this embodiment can be a bolt or screw, etc., commonly used in the art, and will not be described in detail here.

[0041] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 5 Furthermore, a weight-reducing cavity 152 for reducing the weight of the body 100 is also formed on the second boss 105. According to the structure provided in this embodiment, the weight-reducing cavity 152 provided on the second boss 105 can reduce the weight of the body 100, which is beneficial to further improve the assembly efficiency of the dual-purpose oil and gas electronic fuel injection carburetor in this embodiment.

[0042] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 5The airflow channel 101 includes a first straight pipe section 111, a tapered pipe section 112, and a second straight pipe section 113 connected in sequence. The length of the first straight pipe section 111 is 10mm to 80mm, and in this preferred embodiment, the length of the first straight pipe section 111 is 57mm. The first straight pipe section 111 is close to the inlet flange 102, and the second straight pipe section 113 is close to the outlet flange 103. The diameter of the first straight pipe section 111 is smaller than the diameter of the second straight pipe section 113. According to the structure provided in this embodiment, by setting the airflow channel 101 as a first straight pipe section 111 and a second straight pipe section 113 with different diameters, the flow velocity of the mixed gas can be reduced and its uniformity improved when it enters the second straight pipe section 113 from the first straight pipe section 111 through the tapered pipe section 112. The parallel fast airflow formed by the first straight pipe section 111 mixes with the gas supplied in the gas pipe 500 during the diffusion process when it enters the tapered pipe section 112. Due to the effect of the fast airflow, a negative pressure will be generated to attract the gas in the gas pipe 500, making it easier to mix the gas and air evenly. This is beneficial to improving the combustion efficiency of the engine corresponding to the dual-fuel electronic carburetor in this embodiment.

[0043] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 5 The center of the throttle valve 200 is located in the first straight pipe section 111 and near the intake flange 102. According to the structure provided in this embodiment, positioning the throttle valve 200 near the intake flange 102 in the first straight pipe section 111 allows the airflow to flow parallel within the first straight pipe section 111 after passing through the throttle valve 200, reducing disturbance to the air reaching the combustion pipe 500 and improving the uniformity of the air-fuel mixture. This further enhances the combustion efficiency of the engine corresponding to the dual-fuel carburetor in this embodiment. Furthermore, as a preferred embodiment of this application, in actual production, the length of the first straight pipe section 111 can be extended as much as possible to achieve better uniformity of the gas passing through the airflow channel 101.

[0044] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 5 The center of the gas pipe 500 is located at the interface between the first straight pipe section 111 and the tapered pipe section 112. According to the structure provided in this embodiment, setting the center of the gas pipe 500 at the interface between the first straight pipe section 111 and the tapered pipe section 112 allows the gas from the gas pipe 500 and the air entering the airflow passage 101 to mix more evenly, which is beneficial to further improve the combustion efficiency of the engine corresponding to the dual-fuel carburetor in this embodiment.

[0045] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 5The body 100 has an opening 114 for connecting the electronic fuel injector 700 to the airflow passage 101. The opening 114 has a portion located in the tapered section 112 and a portion located in the second straight section 113. According to the structure provided in this embodiment, the opening 114 provided in the tapered section 112 and the second straight section 113 allows for a more uniform mixing of fuel from the electronic fuel injector 700 and air entering the airflow passage 101, which is beneficial for further improving the combustion efficiency of the engine corresponding to the dual-fuel carburetor in this embodiment.

[0046] 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. A 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). Throttle valve (200) is rotatably disposed within the airflow passage (101) and is used to control the opening degree of the airflow passage (101); The airflow channel (101) includes a first straight pipe section (111), a tapered pipe section (112), and a second straight pipe section (113) connected in sequence; the length of the first straight pipe section (111) is 10mm to 80mm; The motor (300) is connected to the throttle valve (200) and is used to drive the throttle valve (200). A first boss (104) for mounting the motor (300) is also formed on the body (100). A first sensor (400) is connected to the body (100) and is used to detect the rotation angle of the throttle valve (200). A second boss (105) for mounting the first sensor (400) is also formed on the body (100). A gas pipe (500) is connected to the body (100) and is used to supply gas to the gas flow channel (101). A third boss (106) for connecting the gas pipe (500) is also formed on the body (100). A channel for communicating between the gas pipe (500) and the gas flow channel (101) is formed inside the third boss (106). The second sensor (600) is connected to the body (100) and is used to detect the gas temperature and gas pressure of the airflow channel (101). A fourth boss (107) for mounting the second sensor (600) is also formed on the body (100). An electronic fuel injector (700) is connected to the body (100) and communicates with the airflow channel (101) to inject fuel into the airflow channel (101). A fifth boss (108) for mounting the electronic fuel injector (700) is also formed on the body (100).

2. The dual-purpose (oil and gas) electronic fuel injection carburetor as described in claim 1, characterized in that: The main body (100) also forms an inlet pipe (109) connected to the airflow channel (101), and one end of the inlet pipe (109) away from the airflow channel (101) is sealed to the nozzle outlet of the electronic fuel injector (700).

3. The dual-purpose (oil and gas) electronic fuel injection carburetor as described in claim 2, characterized in that: The inlet pipe (109) is angled to both the horizontal and vertical center lines of the airflow channel (101).

4. The dual-purpose (oil and gas) electronic fuel injection carburetor as described in claim 1, characterized in that: A sixth protrusion (110) is also formed on the body (100) at a distance from the fourth protrusion (107), and the sixth protrusion (110) is connected to the second sensor (600).

5. The dual-purpose (oil and gas) electronic fuel injection carburetor as described in claim 1, characterized in that: The first sensor (400) and the second boss (105) are provided with corresponding threaded holes (151), and the first sensor (400) is connected to the body (100) by a threaded fastener that can be inserted into the threaded hole (151).

6. The dual-purpose (oil and gas) electronic fuel injection carburetor as described in claim 5, characterized in that: The second boss (105) also has a weight-reducing cavity (152) for reducing the weight of the body (100).

7. The dual-purpose (oil and gas) electronic fuel injection carburetor as described in claim 1, characterized in that: The first straight pipe section (111) is close to the inlet flange (102), and the second straight pipe section (113) is close to the outlet flange (103). The diameter of the first straight pipe section (111) is smaller than the diameter of the second straight pipe section (113).

8. The dual-purpose (oil and gas) electronic fuel injection carburetor as described in claim 7, characterized in that: The center of the throttle valve (200) is located in the first straight pipe section (111) and close to the intake flange (102).

9. The dual-purpose (oil and gas) electronic fuel injection carburetor as described in claim 7, characterized in that: The center of the gas pipe (500) is located at the interface between the first straight pipe section (111) and the tapered pipe section (112).

10. The dual-purpose (oil and gas) electronically controlled carburetor as described in claim 7, characterized in that: An opening (114) is formed on the body (100) for connecting the electronic fuel injector (700) to the airflow passage (101), the opening (114) having a portion located in the conical section (112) and a portion located in the second straight section (113).

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