A combined automotive fuel injector testing device

Abstract

This utility model discloses a combined automotive fuel injector testing device, comprising: a fuel tank for storing testing fuel; a glass tube assembly including a bracket and several glass tubes mounted on the bracket, the bracket having connecting parts that connect to both sides of the fuel tank, each connecting part having several screw through holes, and the side wall of the fuel tank having threaded holes corresponding to the screw through holes, the screw through holes being arranged in a circle; the glass tubes having outlets communicating with the fuel tank; an oil delivery assembly mounted on the fuel tank, the inlet of the oil delivery assembly communicating with the fuel tank; and an oil separator assembly mounted on the top of the bracket, the oil separator assembly having several outlets corresponding to the glass tubes, fuel injectors connected between the outlets of the oil separator assembly and the glass tubes, and the inlet of the oil separator assembly communicating with the outlet of the oil delivery assembly. This utility model solves the problems of large size and high packaging and transportation costs of existing automotive fuel injector testing equipment.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, and in particular to a combined automotive fuel injector testing device. Background Technology

[0002] In the field of automotive repair and maintenance, the cleaning and performance testing of fuel injectors are crucial for ensuring normal engine operation, reducing fuel consumption, and minimizing pollutant emissions. Fuel injector cleaning and testing equipment is the core tool for achieving this. Currently, existing fuel injector cleaning and testing equipment on the market has relatively fixed basic components, typically including a glass tube support, a fuel tank, and a control system. The glass tube support primarily supports and positions the glass tube used to observe the fuel injector's spray pattern and cleaning fluid flow, ensuring a stable and accurate viewing angle during testing. The fuel tank stores the cleaning fluid or testing medium needed for cleaning the fuel injectors, providing a continuous supply of media for the cleaning and testing process. The control system is responsible for regulating key parameters such as cleaning pressure, media flow rate, and cleaning time, while also monitoring the equipment's operating status and providing early warnings of abnormalities, ensuring the safety and reliability of the cleaning and testing operation.

[0003] However, existing fuel injector testing equipment typically has a one-piece structure, and the layout of each component is limited by the overall frame, making it impossible to optimize space according to transportation needs. This results in an overall large size of the equipment. Consequently, larger packaging materials are required in the packaging process, and the excessive size makes transportation inconvenient, increasing overall packaging and transportation costs. Utility Model Content

[0004] The main purpose of this utility model is to provide a combined automotive fuel injector testing device, which aims to solve the problems of large size and high packaging and transportation costs of existing automotive fuel injector testing devices.

[0005] To achieve the above objectives, this utility model proposes a combined automotive fuel injector testing device, comprising:

[0006] The oil tank is used to store the testing oil.

[0007] A glass tube assembly includes a bracket and a plurality of glass tubes mounted on the bracket. The bracket has connecting parts that connect to both sides of an oil tank. Each connecting part has a plurality of screw through holes. The side wall of the oil tank has threaded holes corresponding to the screw through holes. The plurality of screw through holes are arranged in a circular pattern. The glass tubes have liquid outlets that communicate with the oil tank.

[0008] An oil delivery assembly is installed in the oil tank, and the inlet of the oil delivery assembly is connected to the oil tank.

[0009] An oil-liquid separator is installed on the top of the bracket. The oil-liquid separator has several outlets that are connected to the glass tubes one by one. An oil nozzle is connected between the outlet of the oil-liquid separator and the glass tube. The inlet of the oil-liquid separator is connected to the outlet of the oil conveying assembly.

[0010] Optionally, the bracket includes a top plate and a bottom plate, the glass tubes are installed side by side between the top plate and the bottom plate, and two side plates are symmetrically installed between the bottom plate and the bottom plate, with the connecting parts located at the ends of the two side plates respectively.

[0011] Optionally, a sealing gasket is provided between the glass tube and the base plate.

[0012] Optionally, an oil drain valve is connected between the liquid outlet of the glass tube and the oil tank.

[0013] Optionally, the oil delivery assembly includes an oil delivery pipe, the first end of which is connected to the oil tank via an oil pump, and the second end of which is connected to the oil distribution assembly.

[0014] Optionally, the oil separation assembly includes an oil rail, and the oil rail has an oil passage inside for connecting the inlet and outlet of the oil separation assembly.

[0015] Optionally, both the oil separation assembly and the glass tube are connected to the fuel injector.

[0016] Optionally, the end of the fuel injector used to connect with the oil distribution assembly and the glass tube is fitted with a sealing ring.

[0017] Optionally, the oil tank has an oil filling hole, and a sealing plug is installed in the oil filling hole.

[0018] The beneficial effects of this utility model are as follows: it improves the structure of existing automotive fuel injector testing equipment. By designing the glass tube assembly and fuel tank as a detachable combination structure, the packaging can be disassembled during transportation, significantly reducing the overall size of a single shipment, improving the utilization rate of transportation space, and reducing the consumption of packaging materials and logistics costs. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, 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 utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the testing equipment of this utility model;

[0021] Figure 2 This is a schematic diagram of the detection equipment of this utility model from another perspective.

[0022] Figure 3 This is a schematic diagram of the glass tube assembly structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the oil separation component of this utility model;

[0024] Label Explanation:

[0025] 1. Fuel tank; 11. Fuel filling hole; 12. Sealing plug;

[0026] 2. Glass tube assembly; 21. Glass tube; 22. Screw through hole; 23. Top plate; 24. Bottom plate; 25. Side plate; 26. Sealing gasket; 27. Oil drain valve;

[0027] 3. Oil conveying assembly; 31. Oil pipeline; 32. Oil pump;

[0028] 4. Oil separator assembly; 41. Oil rail;

[0029] 5. Fuel injectors.

[0030] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0031] 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.

[0032] It should be noted that 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 the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0033] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, if the word "and / or" appears throughout the text, it means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0034] One embodiment of this utility model proposes a combined automotive fuel injector testing device, referenced... Figure 1 and Figure 2 ,include:

[0035] Oil tank 1 is used to store test oil;

[0036] The glass tube assembly 2 includes a bracket and a plurality of glass tubes 21 mounted on the bracket. The bracket is provided with connecting parts that connect to both sides of the oil tank 1. Each of the connecting parts is provided with a plurality of screw through holes 22. The side wall of the oil tank 1 is provided with threaded holes corresponding to the screw through holes 22. The plurality of screw through holes 22 are arranged in a circular pattern. The glass tubes 21 are provided with liquid outlets that communicate with the oil tank 1.

[0037] An oil delivery assembly 3 is installed on the oil tank 1, and the inlet of the oil delivery assembly 3 is connected to the oil tank 1;

[0038] An oil-liquid separator 4 is installed on the top of the bracket. The oil-liquid separator 4 has several outlets that are connected to the glass tube 21 in a one-to-one manner. An oil nozzle 5 is connected between the outlet of the oil-liquid separator 4 and the glass tube 21. The inlet of the oil-liquid separator 4 is connected to the outlet of the oil conveying assembly 3.

[0039] This embodiment solves the problem of high packaging and transportation costs caused by the excessive size of existing integrated equipment. By designing the glass tube assembly 2 and the oil tank 1 as a detachable combination structure, the packaging can be disassembled during transportation, significantly reducing the overall size of a single shipment, improving the utilization rate of transportation space, and reducing packaging material consumption and logistics costs. Specifically, the glass tube assembly 2 is detachably connected to the oil tank 1 through the connecting part of the bracket. During transportation, the connecting screws can be unscrewed to separate the glass tube assembly 2 from the oil tank 1 and package them separately. When in use, the two are reassembled into a whole by screws, solving the problem of excessive size caused by the inability to disassemble the integrated structure. At the same time, the connecting part of the bracket has several screw through holes 22, and the side wall of the oil tank 1 is provided with corresponding threaded holes. The glass tube assembly 2 and the oil tank 1 are fixed by screws passing through the through holes and screwing into the threaded holes. This structure does not require complex connecting parts, and disassembly and assembly only require basic tools (such as screwdrivers), making operation convenient and ensuring quick disassembly before transportation and stable assembly during use.

[0040] Furthermore, the screw holes 22 of the connecting part are arranged in a circle. When the screws are loosened, the glass tube assembly 2 can rotate relative to the oil tank 1 around the central axis of the circular hole group and be adjusted to the required angle, which makes it easy to observe the state of the oil in the glass tube 21. At the same time, the screw holes 22 adopt an oblong hole structure, which allows for fine adjustment of the bracket installation, avoiding inconvenience caused by factors such as processing errors, and improving the ease of installation.

[0041] Further, refer to Figure 3 The bracket includes a top plate 23 and a bottom plate 24. The glass tube 21 is installed side by side between the top plate 23 and the bottom plate 24. Two side plates 25 are symmetrically installed between the bottom plate 24 and the bottom plate 24. The connecting parts are located at the ends of the two side plates 25 respectively.

[0042] In this embodiment, the bracket consists of a top plate 23, a bottom plate 24, and two side plates 25. The top plate 23 and the bottom plate 24 are arranged in parallel, and the two side plates 25 are symmetrically connected to the two ends of the top plate 23 and the bottom plate 24. The two ends of the glass tube 21 are fixed to the corresponding installation positions of the top plate 23 and the bottom plate 24, respectively, so as to realize the orderly installation of the glass tube 21 side by side. The top plate 23, the bottom plate 24 and the two side plates 25 form a frame structure, which provides a stable installation foundation for the glass tube 21, avoids the glass tube 21 from shifting or being damaged due to vibration or collision during testing or transportation, and ensures the stability of the observation of the working status of the fuel injector 5 during testing.

[0043] Furthermore, a sealing gasket 26 is added between the glass tube 21 and the base plate 24. In this embodiment, the sealing gasket 26 can fill the assembly gap between the glass tube 21 and the base plate 24, prevent the detection oil from leaking from the connection between the bottom of the glass tube 21 and the base plate 24, ensure the airtightness of the oil circuit, and prevent oil waste, equipment contamination, and oil pollution in the detection environment.

[0044] Furthermore, an oil drain valve 27 is connected between the outlet of the glass tube 21 and the oil tank 1. In this embodiment, the oil drain valve 27 can be switched on or its opening adjusted to control the return flow of oil from the glass tube 21 to the oil tank 1. This satisfies the closed-loop circulation requirements of oil during normal testing, and also allows for temporary storage of oil in the glass tube 21 by closing or reducing its opening when testing specific parameters (such as the injection volume and atomization effect of the injector 5). This facilitates observation and recording of the instantaneous working state of the injector 5, improving the flexibility and applicability of the testing. Specifically, the oil drain valve 27 can be a manual ball valve from the prior art, which reduces costs and is intuitive to operate. Alternatively, a solenoid valve can be used, connected to the equipment's control system for automated control.

[0045] Furthermore, the oil delivery assembly 3 includes an oil delivery pipe 31. The first end of the oil delivery pipe 31 is connected to the oil tank 1 via an oil pump 32, and the second end of the oil delivery pipe 31 is connected to the oil distribution assembly 4. In this embodiment, the oil pump 32 provides active power for oil delivery, allowing for precise control of the oil delivery pressure and ensuring that the fuel injector 5 can complete the test under conditions close to real-world operating conditions, thereby improving the accuracy and reliability of the test results.

[0046] Furthermore, the oil distribution assembly 4 includes an oil rail 41, and the oil rail 41 has an oil passage inside for connecting the inlet and outlet of the oil distribution assembly 4. In this embodiment, the oil passage integrated inside the oil rail 41 allows the oil to enter from the inlet and flow evenly to all outlets along a preset path, avoiding uneven oil pressure and flow caused by differences in path length and joint resistance in the distributed pipeline, ensuring that each injector 5 receives the same oil supply conditions, thereby ensuring the accuracy and comparability of data when multiple injectors 5 are detected simultaneously. Specifically, the main oil passage is centrally located along the length of the oil rail 41, and the inlet of the oil rail 41 is connected in the middle. Branch oil passages branch vertically downward from the main oil passage, and the end of each branch oil passage corresponds to an outlet of the oil rail 41, consistent with the number of glass tubes 21. All branch oil passages have the same length and inner diameter, ensuring that the pressure loss of the oil from the main oil passage to each outlet is consistent, thus achieving uniform distribution.

[0047] Furthermore, both the oil distribution assembly 4 and the glass tube 21 are plugged into the fuel injector 5. In this embodiment, the outlet of the oil distribution assembly 4 and the inlet of the glass tube 21 are used to plug into the fuel injector 5, and are adapted to the size of the fuel injector 5. During assembly, installation can be completed by direct plugging, and during disassembly, it can be directly pulled out, which greatly improves the efficiency of installation and disassembly and solves the inefficiency problem of traditional threaded or flanged connections.

[0048] Furthermore, to avoid the problem of test oil leakage due to insufficient sealing of the nozzle 5 insertion structure, in this embodiment, the end of the nozzle 5 used to insert with the oil distribution assembly 4 and the glass tube 21 is fitted with a sealing ring. The sealing ring can fill the gap between the insertion structures through elastic deformation to form a reliable sealing surface, preventing test oil from leaking from the connection between the nozzle 5 and the oil rail 41 and the nozzle 5 and the glass tube 21. This not only prevents test oil waste but also avoids oil pollution of the equipment and the testing environment, ensuring the airtightness of the oil circuit.

[0049] Furthermore, the oil tank 1 has an oil filling hole 11, and a sealing plug 12 is installed inside the oil filling hole 11. In this embodiment, the oil filling hole 11 provides a dedicated channel for adding test oil to the oil tank 1, solving the cumbersome problem of traditional oil tanks 1 requiring the removal of the cover or connection of pipelines to add oil. Operators can directly add test oil to the oil tank 1 through the oil filling hole 11 without the need for professional tools or complicated steps, significantly improving the efficiency of oil replenishment. The cooperation between the sealing plug 12 and the oil filling hole 11 can completely seal the oil tank 1 when not being filled, which not only avoids test oil leakage caused by tilting or vibration of the oil tank 1 during transportation, but also prevents external dust, moisture and other impurities from entering the oil tank 1 and contaminating the test oil, ensuring the purity of the test oil, thereby ensuring the accuracy of the test results of the fuel injector 5.

[0050] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A combined automotive fuel injector testing apparatus, characterized by, include: The oil tank is used to store the testing oil. A glass tube assembly includes a bracket and a plurality of glass tubes mounted on the bracket. The bracket has connecting parts that connect to both sides of an oil tank. Each connecting part has a plurality of screw through holes. The side wall of the oil tank has threaded holes corresponding to the screw through holes. The plurality of screw through holes are arranged in a circular pattern. The glass tubes have liquid outlets that communicate with the oil tank. An oil delivery assembly is installed in the oil tank, and the inlet of the oil delivery assembly is connected to the oil tank. An oil-liquid separator is installed on the top of the bracket. The oil-liquid separator has several outlets that are connected to the glass tubes one by one. An oil nozzle is connected between the outlet of the oil-liquid separator and the glass tube. The inlet of the oil-liquid separator is connected to the outlet of the oil conveying assembly.

2. The combined automotive fuel injector testing apparatus of claim 1, wherein, The support includes a top plate and a bottom plate. The glass tubes are installed side by side between the top plate and the bottom plate. Two side plates are symmetrically installed between the bottom plate and the bottom plate. The connecting parts are located at the ends of the two side plates respectively.

3. The modular automotive fuel injector testing apparatus of claim 2, wherein, A sealing gasket is added between the glass tube and the base plate.

4. The combination automotive fuel injector testing apparatus of claim 1 wherein, An oil drain valve is connected between the liquid outlet of the glass tube and the oil tank.

5. The combination automotive fuel injector testing apparatus of claim 1 wherein, The oil delivery assembly includes an oil delivery pipe, the first end of which is connected to the oil tank via an oil pump, and the second end of which is connected to the oil separation assembly.

6. The modular automotive fuel injector testing apparatus of claim 1, wherein, The oil separation assembly includes an oil rail, and the oil rail has an oil passage inside for connecting the inlet and outlet of the oil separation assembly.

7. The modular automotive fuel injector testing apparatus of claim 1, wherein, Both the oil separation assembly and the glass tube are connected to the fuel injector.

8. The modular automotive fuel injector testing apparatus of claim 7, wherein, The end of the fuel injector that is used to connect with the oil distribution assembly and the glass tube is fitted with a sealing ring.

9. The modular automotive fuel injector testing apparatus of claim 1, wherein, The oil tank has an oil filling hole, and a sealing plug is installed inside the oil filling hole.

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