Transparent carburetor shell
The transparent carburetor housing solves the problem of non-visualization of traditional carburetors through split 3D printing and sealed connection, realizes the visualization and easy maintenance of the internal process of the carburetor, and improves fuel mixing efficiency and engine performance.
Patent Information
- Application Number
- CN202423191917.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-12-24
AI Technical Summary
Traditional carburetors are made of metal or opaque materials, which makes it impossible to directly observe the mixing and atomization process of fuel and air inside, increasing the difficulty of fault diagnosis and fuel debugging. In addition, the manufacturing process is complex, which limits its application in combustion research.
A transparent carburetor shell is used, which is formed by split 3D printing and includes first, second and third transparent shells. The sealed connection and the coordination of the positioning column and the groove are used to visualize the internal working status of the carburetor. The Tesla valve is used to prevent fuel backflow and optimize the fuel ratio.
The visualization of the internal process of the carburetor is realized, which facilitates the precise adjustment of the fuel ratio, improves the mixing efficiency, reduces the maintenance difficulty, reduces the manufacturing and maintenance costs, and improves the fuel combustion efficiency and engine performance.
Smart Images

Figure CN223398774U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of internal combustion engines, in particular to a transparent carburetor shell. Background Art
[0002] The carburetor is an important component of the internal combustion engine. Its main function is to mix fuel and air in proper proportions to ensure efficient operation of the engine.
[0003] Traditional carburetors are often made of metal or opaque materials, making it impossible to directly observe the internal fuel-air mixing and atomization process. This lack of visualization complicates fault diagnosis and fuel debugging, while also limiting the application of carburetors in combustion research. Furthermore, the complex manufacturing process of traditional carburetors limits their ability to be customized.
[0004] To this end, a transparent carburetor is designed, which not only can realize the visualization of the internal working status, but also has the characteristics of easy manufacturing, easy maintenance and good performance optimization, and has important research and application value. Summary of the Invention
[0005] In response to the shortcomings of the existing technology, the utility model provides a transparent carburetor housing that is assembled after split 3D printing. It can not only visualize the internal working state of the carburetor, but also facilitate manufacturing and maintenance. The technical solution adopted by the utility model is:
[0006] A transparent carburetor housing, comprising:
[0007] a first transparent shell, wherein a mixing chamber is provided upwardly from the bottom of the first transparent shell, an air passage is provided transversely through the first transparent shell, the air passage is connected to the mixing chamber, an oil inlet is provided at the top of the mixing chamber, and a Tesla valve is provided at the oil inlet;
[0008] a second transparent shell, attached to the top surface of the first transparent shell;
[0009] a third transparent shell, attached to the top surface of the second transparent shell;
[0010] a plurality of bolts, any of which passes through the third transparent shell and the second transparent shell in sequence from top to bottom and is threadedly connected to the first transparent shell;
[0011] The first transparent shell, the second transparent shell and the third transparent shell are respectively 3D printed integrally formed structures.
[0012] Furthermore, an idle speed adjustment hole is transversely provided on the first transparent shell, and one end of the idle speed adjustment hole is communicated with the mixing chamber.
[0013] Furthermore, a first positioning column is provided on the top of the first transparent shell, and a first positioning groove adapted to the first positioning column is provided on the bottom of the second transparent shell.
[0014] Furthermore, a second positioning post is provided on the top of the second transparent shell, and a second positioning groove adapted to the second positioning post is provided on the bottom of the third transparent shell.
[0015] Furthermore, the contact surface between the first transparent shell and the second transparent shell is sealed; and / or the contact surface between the second transparent shell and the third transparent shell is sealed.
[0016] Advantages of this utility model:
[0017] The transparent housing allows the fuel atomization, mixing and flow processes to be fully displayed. By visually observing the mixing state of fuel with air, it is easy to accurately adjust and optimize the fuel ratio, which helps to enhance the fuel-air mixing efficiency and ultimately improve fuel combustion efficiency and engine performance.
[0018] The carbon deposits, impurities or other pollutants inside the transparent carburetor housing are clearly visible, reducing the difficulty of carburetor maintenance;
[0019] Each shell is printed separately and then assembled and spliced, which reduces the difficulty and cost of molding, reduces the number of dead corners in each chamber or channel in the shell, and further reduces the accumulation of impurities;
[0020] A Tesla valve structure is added to the fuel inlet to prevent fuel backflow and accelerate the forward flow of fuel, thereby increasing fuel combustion efficiency;
[0021] The coordination between the positioning posts and the positioning slots facilitates the assembly and positioning of the housings.
[0022] Sealed connections are used to increase the contact area between the housings, thereby preventing fuel or gas from leaking from the joint surfaces of the housings. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 An exploded view of the transparent carburetor housing.
[0024] Figure 2 Use a status diagram for the clear carburetor housing.
[0025] Figure 3 It is a cross-sectional view of the first transparent shell.
[0026] Figure 4 This is a structural diagram of the second transparent shell from a second viewing angle.
[0027] Figure 5 This is a structural diagram of the third transparent shell from a second perspective.
[0028] Figure 6 This is an example diagram of the first sealed connection form.
[0029] Figure 7 This is an example diagram of the second sealed connection form.
[0030] Figure 8 This is an embodiment diagram of the third sealed connection form.
[0031] In the figure: 100-first transparent shell, 110-mixing chamber, 120-intake channel, 130-fuel inlet, 140-Tesla valve, 150-idle adjustment hole, 160-first positioning column, 200-second transparent shell, 210-first positioning groove, 220-second positioning column, 300-third transparent shell, 310-second positioning groove, 400-bolt, 500-float chamber, 600-intake pipe joint, 700-fuel pipe joint, 800-idle adjustment screw. DETAILED DESCRIPTION
[0032] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0033] Please see the attached Figure 1-Figure 5 The present application proposes a transparent carburetor housing, comprising: a first transparent shell 100, a mixing chamber 110 extending upward from the bottom of the first transparent shell 100, an air channel 120 being horizontally penetrated by the first transparent shell 100, the air channel 120 being connected to the mixing chamber 110, an oil inlet 130 being provided at the top of the mixing chamber 110, and a Tesla valve 140 being provided at the oil inlet 130; a second transparent shell 200 being adhered to the top surface of the first transparent shell 100; a third transparent shell 300 being adhered to the top surface of the second transparent shell 200; a plurality of bolts 400, any of the bolts 400 sequentially penetrating the third transparent shell 300 and the second transparent shell 200 from top to bottom and being threadedly connected to the first transparent shell 100; wherein the first transparent shell 100, the second transparent shell 200 and the third transparent shell 300 are respectively 3D printed integrally molded structures.
[0034] In this application, please see the attached Figure 1 and attached Figure 2The second transparent shell 200 is the core part of the entire carburetor housing, responsible for carrying other components and providing the main fuel channels and air channels, so it is necessary to provide a fuel interface, an air interface or interfaces for other required components. The first transparent shell 100 is connected to the air intake duct of the engine, and is used to guide the mixed fuel and air into the combustion chamber, and the mixing chamber 110 is located in the central area of the first transparent shell 100, which is also the key part for the mixing of fuel and air. The transparent shell makes the atomization inside the mixing chamber 110 clear at a glance, which is convenient for observation and timely adjustment of the mixing ratio. The third transparent shell 300 mainly provides air flow and optimizes the mixing ratio of fuel and air. Since the working principle and structure of the carburetor have been disclosed as prior art, its internal structure and working process will not be repeated here.
[0035] Due to the shape and direction of the various chambers or channels inside the carburetor housing, if the entire housing is manufactured in one piece, it is not only difficult and costly, but also cannot be easily cleaned when there are carbon deposits or impurities in the channel corners. Therefore, the optimizer housing is divided into three parts and molded separately. The channels that are prone to carbon deposits or have channel corners are used as dividing surfaces to divide them into first, second, and third transparent shells. The difficulty and cost of printing the shells separately are lower, the number of dead corners in the chambers or channels within the shell is reduced, and the accumulation of impurities is further reduced. When there are impurities and carbon deposits inside the shell, the shell can be directly disassembled for cleaning, which is more convenient to operate.
[0036] As a specific embodiment of the present application, each transparent shell is made of transparent vertical material through 3D printing, ensuring that the mixing process can be visualized and the air intake volume can be adjusted through the transparent shell.
[0037] It should be noted that the Tesla valve 140 at the fuel inlet 130 accelerates the one-way entry of fuel into the fuel inlet 130 , thereby preventing fuel backflow and helping fuel mixing.
[0038] In a specific embodiment, the number of bolts 400 is four. Four threaded holes are set from top to bottom near the edge of the first transparent shell 100, and four through holes are set on the edges of the second transparent shell 200 and the third transparent shell 300 respectively; the three transparent shells are tightly fixed together using four bolts 400.
[0039] In this application, in order to achieve fuel supply under idle conditions, please refer to the attached Figure 1 and attached Figure 3 An idle speed adjustment hole 150 is horizontally provided on the first transparent shell 100 , and one end of the idle speed adjustment hole 150 is connected to the mixing chamber 110 .
[0040] In order to facilitate the positioning between the first transparent shell 100 and the second transparent shell 200, realize quick assembly and prevent misalignment between the two, please refer to the attached Figure 1 and attached Figure 4 The first transparent housing 100 is provided with a first positioning post 160 at the top, and the second transparent housing 200 is provided with a first positioning slot 210 at the bottom that matches the first positioning post 160. Specifically, there are two first positioning posts 160 and two first positioning slots 210, both located on the same side. Once the two first positioning posts 160 are inserted into the two first positioning slots 210, the second transparent housing 200 can no longer translate or rotate relative to the first transparent housing 100.
[0041] In order to facilitate the positioning between the second transparent shell 200 and the third transparent shell 300, realize quick assembly and prevent misalignment between the two, please refer to the attached Figure 1 and attached Figure 5 The second transparent shell 200 is provided with a second positioning post 220 at the top, and the third transparent shell 300 is provided with a second positioning slot 310 that matches the second positioning post 220 at the bottom. Specifically, there are two second positioning posts 220 and two second positioning slots 310, each located on the same side. Once the two second positioning posts 220 are inserted into the two second positioning slots 310, the third transparent shell 300 can no longer translate or rotate relative to the second transparent shell 200.
[0042] To prevent fuel or air from leaking from the connecting surfaces of the shells, the contact surfaces between the first transparent shell 100 and the second transparent shell 200 are sealed, and the contact surfaces between the second transparent shell 200 and the third transparent shell 300 are sealed.
[0043] Typically, the sealing connection between the joint surfaces is achieved through a sealing ring.
[0044] As an embodiment of the present application, the sealed connection between the joint surfaces is achieved by connecting the recess on one shell and the protrusion on the adjacent shell. The purpose is to increase the contact area between the two shells and achieve sealing by the tight fit between the protrusion and the recess, thereby omitting the arrangement of the sealing ring.
[0045] In some embodiments, taking the third transparent shell 300 as an example, as shown in the attached Figure 6 -Attached Figure 8 As shown, the sealed connection structure is honeycomb-shaped, S-shaped or strip-shaped, and is arranged around the edge of the third transparent shell 300 .
[0046] It is easy to understand that in the same state, if the lower surface of the third transparent shell 300 is configured as concave, the upper surface of the second transparent shell 200 is configured as convex; similarly, when the lower surface of the second transparent shell 200 is configured as concave, the upper surface of the first transparent shell 100 is configured as convex.
[0047] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to examples, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.
Claims
1. A transparent carburetor housing, characterized in that: include: A first transparent shell (100) is provided with a mixing chamber (110) extending upward from the bottom of the first transparent shell (100); an air passage (120) is provided transversely through the first transparent shell (100); the air passage (120) is connected to the mixing chamber (110); an oil inlet (130) is provided at the top of the mixing chamber (110); and a Tesla valve (140) is provided at the oil inlet (130); A second transparent shell (200) is attached to the top surface of the first transparent shell (100); a third transparent shell (300) attached to the top surface of the second transparent shell (200); a plurality of bolts (400), wherein any of the bolts (400) sequentially penetrates the third transparent shell (300) and the second transparent shell (200) from top to bottom and is threadedly connected to the first transparent shell (100); The first transparent shell (100), the second transparent shell (200) and the third transparent shell (300) are respectively 3D printed integrally formed structures.
2. The transparent carburetor housing according to claim 1, wherein: An idle speed adjustment hole (150) is transversely provided on the first transparent shell (100), and one end of the idle speed adjustment hole (150) is in communication with the mixing chamber (110).
3. The transparent carburetor housing according to claim 1, wherein: A first positioning column (160) is provided on the top of the first transparent shell (100), and a first positioning groove (210) adapted to the first positioning column (160) is provided on the bottom of the second transparent shell (200).
4. The transparent carburetor housing according to claim 1, wherein: A second positioning column (220) is provided on the top of the second transparent shell (200), and a second positioning groove (310) adapted to the second positioning column (220) is provided on the bottom of the third transparent shell (300).
5. The transparent carburetor housing according to any one of claims 1 to 4, characterized in that: The contact surface between the first transparent shell (100) and the second transparent shell (200) is sealed; and / or the contact surface between the second transparent shell (200) and the third transparent shell (300) is sealed.