Oil sprayer detection equipment

Abstract

The invention provides fuel injector detection equipment which is used for being arranged in a light-proof environment, and the fuel injector detection equipment comprises a storage structure which is provided with a storage cavity and a liquid outlet, the storage cavity communicates with the liquid outlet, the storage cavity is used for storing a to-be-injected medium, and the to-be-injected medium comprises a marking medium; the spraying assembly is arranged outside the storage structure, and a liquid suction part of the spraying assembly communicates with the liquid outlet so that the to-be-sprayed medium can be driven to flow from the storage cavity to a spraying part of the spraying assembly and be sprayed out; the adjusting assembly is arranged on the jetting assembly and used for adjusting the pressure of the to-be-jetted medium flowing in the jetting assembly; the light source structure is used for irradiating the to-be-jetted medium jetted by the jetting part and enabling the marking medium to emit detection light; and the camera shooting structure is used for shooting the to-be-jetted medium jetted by the jetting part and sending a shooting result to the control device. The problem that in the prior art, evaluation accuracy of the injection performance of the oil injector is low is effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of fuel injectors, and in particular to a fuel injector detection device. Background Art

[0002] At present, in the field of research and development and maintenance of internal combustion engines, the injector is a core component, and its injection effect is directly related to the combustion efficiency of the fuel and the exhaust emission standards. Therefore, it is particularly important to evaluate the performance of the injector.

[0003] In the existing technology, the injector performance evaluation method mainly relies on the measurement of macro parameters such as injection quantity, injection pressure, and injection pattern by precision instruments, supplemented by manual observation and empirical inference to evaluate micro parameters such as the size and distribution of oil droplets during the injection process and the atomization quality of the injector.

[0004] However, manual observation is time-consuming and laborious, and cannot achieve rapid multiple tests and analysis. Moreover, due to the staff's work experience and subjective judgment, the results of each test may be different, which reduces the comparability and credibility of the test data and affects the accuracy of the injector performance evaluation. At the same time, it is difficult to capture the details of the oil droplet atomization process through naked eye observation and simple optical measurement, and it is impossible to conduct a comprehensive and high-precision evaluation of the injector's injection performance, which reduces the accuracy of the injector's injection performance evaluation. Summary of the invention

[0005] The main purpose of the present invention is to provide a fuel injector detection device to solve the problem of low accuracy in evaluating the injection performance of the fuel injector in the prior art.

[0006] In order to achieve the above-mentioned purpose, according to the present invention, there is provided an injector detection device for being arranged in a light-proof environment, the injector detection device comprising: a storage structure having a storage chamber and a liquid outlet, the storage chamber being connected to the liquid outlet, the storage chamber being used to store a medium to be sprayed, the medium to be sprayed comprising a marking medium; an injection assembly being arranged outside the storage structure, the liquid suction portion of the injection assembly being connected to the liquid outlet, so as to drive the medium to be sprayed to flow from the storage chamber to the injection portion of the injection assembly and spray out; an adjustment assembly being arranged on the injection assembly, the adjustment assembly being used to adjust the pressure of the medium to be sprayed flowing in the injection assembly; a light source structure being used to irradiate the medium to be sprayed sprayed by the injection portion, and to make the marking medium emit a detection light; and a camera structure being used to photograph the medium to be sprayed sprayed by the injection portion, and to send the photographing result to the control device.

[0007] Furthermore, the fuel injector detection device also includes a stirring assembly, which includes a stirring structure. The stirring structure is rotatably disposed on the storage structure and is located in the storage cavity to stir the medium to be injected.

[0008] Furthermore, the stirring assembly also includes a driving structure, which is arranged on the storage structure and located outside the storage cavity. The driving structure is drivingly connected to the stirring structure to drive the stirring structure to rotate.

[0009] Further, the injection assembly includes: a pump body structure; a connecting structure, which is arranged between the pump body structure and the injection part; the two ends of the pump body structure are respectively connected to the liquid outlet and the injection part through the connecting structure; or, one end of the pump body structure is connected to the liquid outlet and one of the injection part, and the other end of the pump body structure is connected to the liquid outlet and the other of the injection part through the connecting structure; wherein the liquid suction part is arranged on the pump body structure and / or the connecting structure.

[0010] Furthermore, the regulating component is arranged on the connecting structure and connected to the control device, and the regulating component includes: a pressure detection structure, the detection end of the pressure detection structure extends into the connecting structure to detect the pressure of the medium to be sprayed, and sends the detection data to the control device; the regulating structure is arranged on the connecting structure, and the control device controls the start of the regulating structure according to the detection data to adjust the flow rate of the medium to be sprayed in the connecting structure.

[0011] Furthermore, the injector detection device also includes a containing structure, which is arranged above the storage structure; the containing structure has a containing cavity and a liquid flow portion, the containing cavity and the liquid flow portion are connected, and the containing cavity is used to contain the marking medium; the storage structure also has a liquid inlet, which is connected to the liquid flow portion to allow the marking medium to flow from the containing cavity to the storage cavity.

[0012] Furthermore, the liquid-flowing portion is tubular, and the containing structure includes a control valve, which is arranged on the liquid-flowing portion to control the flow rate of the marking medium in the liquid-flowing portion.

[0013] Furthermore, the light source structure includes: a light emitting part, which is used to emit a light beam of a specific wavelength so that the light beam can be absorbed by the marking medium by making it contact with the marking medium; a filtering part, which is arranged on the light emitting part to filter the light source outside the light beam; wherein, there are multiple light source structures, and the multiple light source structures are arranged at intervals around the central axis of the injection part.

[0014] Furthermore, the fuel injector detection device also includes a filter, which is arranged on the camera structure to filter light other than the detection light.

[0015] Furthermore, there are multiple camera structures, which are arranged at intervals around the central axis of the spraying part to be used for shooting the medium to be sprayed at multiple angles.

[0016] By applying the technical solution of the present invention, the injector detection device is used to be arranged in an opaque environment. The storage structure of the injector detection device has a storage chamber and a liquid outlet. The storage chamber is connected to the liquid outlet. The storage chamber is used to store the medium to be sprayed, and the medium to be sprayed includes a marking medium. The spray assembly is arranged outside the storage structure. The liquid suction part of the spray assembly is connected to the liquid outlet to drive the medium to be sprayed from the storage chamber to flow to the spray part of the spray assembly and spray out. The adjustment assembly is arranged on the spray assembly, and the adjustment assembly is used to adjust the pressure of the medium to be sprayed flowing in the spray assembly. The light source structure is used to irradiate the medium to be sprayed sprayed by the spray part, and make the marking medium emit a detection light. The camera structure is used to shoot the medium to be sprayed sprayed by the spray part, and send the shooting result to the control device. In this way, when the staff evaluates the performance of the fuel injector, the above setting, on the one hand, improves the contrast and clarity of the trajectory of the medium to be sprayed in the image through the light source structure and the marking medium, making the detection and analysis of the medium to be sprayed more intuitive and accurate; on the other hand, the above setting of the camera structure can capture and record the dynamic changes of the medium to be sprayed at the moment of spraying, including the key characteristics of the medium to be sprayed, such as the spray angle, spray distance and distribution uniformity, thereby improving the observation accuracy of the medium to be sprayed. At the same time, the control device evaluates the key characteristics and spray performance of the fuel injector in an all-round and high-precision manner according to the shooting structure provided by the camera structure, thereby improving the accuracy of the evaluation of the injection performance of the fuel injector, and thus solving the problem of low accuracy of the evaluation of the injection performance of the fuel injector in the prior art. At the same time, the above setting of the adjustment component, on the one hand, ensures that the injection part sprays under the set pressure conditions, ensures the operating stability of the medium to be sprayed, and improves the detection accuracy and repeatability of the fuel injector detection equipment; on the other hand, it can also control the pressure of the medium to be sprayed, and can simulate the actual working environment of the fuel injector under different working conditions, so as to achieve the comparability and repeatability of the test results, and provide a reliable basis for the design optimization and quality control of the fuel injector. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 A schematic structural diagram of an embodiment of a fuel injector detection device according to the present invention is shown.

[0019] The above drawings include the following reference numerals:

[0020] 1. Medium to be sprayed;

[0021] 10. Storage structure; 11. Storage cavity; 12. Liquid outlet; 13. Liquid inlet;

[0022] 20. Spraying assembly; 21. Liquid suction part; 22. Spraying part; 23. Pump body structure; 24. Communication structure;

[0023] 30. Adjustment components;

[0024] 40. light source structure; 41. light emitting part;

[0025] 50. Camera structure;

[0026] 60. Control device;

[0027] 70. stirring assembly; 71. stirring structure; 72. driving structure;

[0028] 80. accommodating structure; 81. accommodating chamber; 82. liquid flow part; 83. control valve. DETAILED DESCRIPTION

[0029] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0031] In the present invention, unless otherwise specified, the directional words used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above directional words are not used to limit the present invention.

[0032] In order to solve the problem of low accuracy in evaluating the injection performance of a fuel injector in the prior art, the present application provides a fuel injector detection device.

[0033] like Figure 1As shown, the fuel injector detection device is used to be arranged in a light-proof environment, and the fuel injector detection device includes a storage structure 10, a spray assembly 20, an adjustment assembly 30, a light source structure 40 and a camera structure 50. The storage structure 10 has a storage chamber 11 and a liquid outlet 12, and the storage chamber 11 is connected to the liquid outlet 12. The storage chamber 11 is used to store the medium 1 to be sprayed, and the medium 1 to be sprayed includes a marking medium. The spray assembly 20 is arranged outside the storage structure 10, and the liquid suction part 21 of the spray assembly 20 is connected to the liquid outlet 12, so as to drive the medium 1 to be sprayed to flow from the storage chamber 11 to the spray part 22 of the spray assembly 20 and spray out. The adjustment assembly 30 is arranged on the spray assembly 20, and the adjustment assembly 30 is used to adjust the pressure of the medium 1 to be sprayed flowing in the spray assembly 20. The light source structure 40 is used to irradiate the medium 1 to be sprayed sprayed by the spray part 22, and make the marking medium emit a detection light. The camera structure 50 is used to shoot the medium 1 to be sprayed sprayed by the spray part 22, and send the shooting result to the control device 60.

[0034] The technical solution of this embodiment is applied, and the injector detection device is used to be arranged in an opaque environment. The storage structure 10 of the injector detection device has a storage chamber 11 and a liquid outlet 12. The storage chamber 11 is connected to the liquid outlet 12. The storage chamber 11 is used to store the medium 1 to be sprayed, and the medium 1 to be sprayed includes a marking medium. The spray assembly 20 is arranged outside the storage structure 10, and the liquid suction part 21 of the spray assembly 20 is connected to the liquid outlet 12, so as to drive the medium 1 to be sprayed to flow from the storage chamber 11 to the spray part 22 of the spray assembly 20 and spray out. The adjustment component 30 is arranged on the spray assembly 20, and the adjustment component 30 is used to adjust the pressure of the medium 1 to be sprayed flowing in the spray assembly 20. The light source structure 40 is used to irradiate the medium 1 to be sprayed sprayed by the spray part 22, and make the marking medium emit detection light. The camera structure 50 is used to shoot the medium 1 to be sprayed sprayed by the spray part 22, and send the shooting result to the control device 60. In this way, when the staff evaluates the performance of the fuel injector, the above setting improves the contrast and clarity of the trajectory of the medium 1 to be sprayed in the image through the light source structure 40 and the marking medium, making the detection and analysis of the medium 1 to be sprayed more intuitive and accurate; on the other hand, the above setting of the camera structure 50 can capture and record the dynamic changes of the medium 1 to be sprayed at the moment of spraying, including the key characteristics of the spray angle, spray distance and distribution uniformity of the medium 1 to be sprayed, thereby improving the accuracy of observing the medium 1 to be sprayed. At the same time, the control device 60 evaluates the key characteristics and spray performance of the fuel injector in an all-round and high-precision manner according to the shooting structure provided by the camera structure 50, thereby improving the accuracy of the injection performance evaluation of the fuel injector, thereby solving the problem of low accuracy of the injection performance evaluation of the fuel injector in the prior art. At the same time, the above-mentioned setting of the adjustment component 30, on the one hand, ensures that the injection part 22 is sprayed under the set pressure conditions, ensures the operating stability of the medium 1 to be sprayed, and improves the detection accuracy and repeatability of the injector detection equipment; on the other hand, it can also control the pressure of the medium 1 to be sprayed, and can simulate the actual working environment of the injector under different working conditions, thereby achieving the comparability and repeatability of the test results, and providing a reliable basis for the design optimization and quality control of the injector.

[0035] In this embodiment, the marking medium is a fluorescent agent.

[0036] Specifically, the labeling medium is one of rhodamine B and fluorescein.

[0037] In this embodiment, the medium 1 to be sprayed includes fuel and fluorescent agent.

[0038] In this embodiment, the injection portion 22 is a fuel injector.

[0039] In this embodiment, the camera structure 50 is a high-speed camera.

[0040] like Figure 1As shown, the fuel injector detection device also includes a stirring assembly 70, and the stirring assembly 70 includes a stirring structure 71. The stirring structure 71 is rotatably arranged on the storage structure 10 and is located in the storage chamber 11 to stir the medium to be sprayed 1. In this way, the above arrangement ensures the uniformity of the mixing of the fuel and the fluorescent agent in the storage chamber 11 through the stirring structure 71, and ensures that the oil droplets sprayed by the injection part 22 have the same fluorescent characteristics, thereby improving the consistency of image acquisition and the accuracy of analysis. At the same time, the above arrangement avoids the precipitation of the fluorescent agent in the fuel, eliminates the fluctuation of the injection performance caused by the unevenness of the medium to be sprayed 1, and ensures the consistency of the injection conditions, thereby improving the comparability and reliability of the detection data, and further improving the detection accuracy and reliability of the fuel injector detection device.

[0041] like Figure 1 As shown, the stirring assembly 70 also includes a driving structure 72, which is arranged on the storage structure 10 and outside the storage chamber 11. The driving structure 72 is connected to the stirring structure 71 to drive the stirring structure 71 to rotate. In this way, the above-mentioned arrangement realizes the rotation of the stirring structure 71 through the driving structure 72, ensures the stirring reliability of the medium 1 to be sprayed, and improves the mixing uniformity of the fluorescent agent in the fuel. At the same time, the arrangement of the driving structure 72 outside the storage chamber 11 not only ensures the cleanliness of the storage chamber 11, avoids impurities generated during the operation of the driving structure 72 from falling into the medium 1 to be sprayed and contaminating the medium 1 to be sprayed, but also facilitates the installation and maintenance of the driving structure 72, reducing the difficulty of installation and maintenance by the staff.

[0042] In this embodiment, the driving structure 72 is a motor.

[0043] In this embodiment, the stirring structure 71 is a propeller.

[0044] Optionally, the stirring component 70 is one of a stirrer and an ultrasonic cleaner.

[0045] like Figure 1As shown, the injection assembly 20 includes a pump body structure 23 and a connecting structure 24. The connecting structure 24 is arranged between the pump body structure 23 and the injection part 22. The two ends of the pump body structure 23 are respectively connected with the liquid outlet 12 and the injection part 22 through the connecting structure 24. Alternatively, one end of the pump body structure 23 is connected with one of the liquid outlet 12 and the injection part 22, and the other end of the pump body structure 23 is connected with the other of the liquid outlet 12 and the injection part 22 through the connecting structure 24. Among them, the liquid suction part 21 is arranged on the pump body structure 23 and / or the connecting structure 24. In this way, the above arrangement makes the structure of the injection assembly 20 simpler while realizing the function of the injection assembly 20 driving the flow of the medium 1 to be injected through the pump body structure 23, thereby reducing the processing cost of the injection assembly 20 and the processing difficulty of the staff. At the same time, the arrangement of the connecting structure 24 makes the setting position of the pump body structure 23 more flexible and diverse, so as to adapt to different working conditions and use requirements, and improve the installation flexibility of the staff. At the same time, the above-mentioned setting of the liquid suction part 21 can not only optimize the flow path of the medium to be sprayed, reduce flow resistance and turbulence, ensure that the medium to be sprayed enters the injector smoothly and continuously from the storage chamber, improve the stability and uniformity of the spraying process of the medium to be detected, but also improve the installation flexibility of the liquid suction part 21.

[0046] In this embodiment, one end of the pump body structure 23 is connected to the liquid outlet 12 , and a connecting structure 24 is provided between the other end of the pump body structure 23 and the injection portion 22 .

[0047] In other embodiments not shown in the drawings, a communication structure is provided between one end of the pump body structure and the liquid outlet, and a communication structure is also provided between the other end of the pump body structure and the injection portion.

[0048] like Figure 1As shown, the regulating assembly 30 is arranged on the connecting structure 24 and connected to the control device 60, and the regulating assembly 30 includes a pressure detection structure and a regulating structure. The detection end of the pressure detection structure extends into the connecting structure 24 to detect the pressure of the medium 1 to be sprayed, and sends the detection data to the control device 60. The regulating structure is arranged on the connecting structure 24, and the control device 60 controls the start of the regulating structure according to the detection data to adjust the flow of the medium 1 to be sprayed in the connecting structure 24. In this way, the above-mentioned setting realizes the real-time monitoring function of the pressure of the medium 1 to be sprayed through the pressure detection structure, ensures that the injection part 22 is sprayed under the set pressure conditions, thereby improving the detection accuracy and repeatability of the injector detection equipment. At the same time, the control device 60 controls the start of the regulating structure in real time according to the detection data of the pressure detection structure, ensures the precise control of the flow of the medium 1 to be sprayed, ensures the running stability of the medium 1 to be sprayed, and then ensures the spraying stability of the injection part 22, and further improves the detection accuracy of the detection equipment. At the same time, the above arrangement can also control the pressure of the medium 1 to be injected by adjusting the component 30, thereby simulating the actual working environment of the injector under different working conditions to adapt to different working conditions and usage requirements, thereby improving the versatility of the injector detection equipment.

[0049] like Figure 1 As shown, the fuel injector detection device further includes a containing structure 80. The containing structure 80 is arranged above the storage structure 10. The containing structure 80 has a containing cavity 81 and a liquid flow portion 82, the containing cavity 81 and the liquid flow portion 82 are connected, and the containing cavity 81 is used to contain the marking medium. The storage structure 10 also has a liquid inlet 13, the liquid inlet 13 is connected to the liquid flow portion 82, and is used to allow the marking medium to flow from the containing cavity 81 to the storage cavity 11. In this way, the above arrangement realizes the storage of the marking medium through the containing cavity 81, realizes the separation of the marking medium from other media, and avoids the contamination of the marking medium. At the same time, the arrangement of the containing structure 80, on the one hand, enables the marking medium to be added to the storage cavity 11 under the action of gravity, without the need to use additional equipment, thereby reducing the production cost; on the other hand, it makes the structure of the fuel injector detection device more compact, reduces the occupied space of the fuel injector detection device, and further reduces the production cost.

[0050] Specifically, the liquid flow portion 82 is tubular, and the accommodating structure 80 includes a control valve 83, which is arranged on the liquid flow portion 82 to control the flow rate of the marking medium in the liquid flow portion 82. In this way, the above arrangement realizes the precise control of the flow rate of the marking medium through the control valve 83, ensures the consistency of the amount of the marking medium added, and further improves the accuracy and reliability of the detection data. At the same time, the above arrangement enables the staff to control the addition of the marking medium by controlling the control valve 83, reduces the difficulty of the staff's operation, and improves the staff's work efficiency.

[0051] Optionally, the containing structure 80 is a transparent structure with a numerical value marked on it. The staff only needs to control the control valve 83 and observe the remaining value of the marking medium in the containing cavity 81 to control the amount of marking medium added.

[0052] Optionally, the control valve 83 is connected to the control device 60, and the control device 60 starts the control valve 83 to improve the automation level of the injector detection equipment.

[0053] Optionally, the driving structure 72, the pump structure 23 and the light source structure 40 are all connected to the control device 60 to improve the automation level of the injector detection equipment.

[0054] like Figure 1 As shown, the light source structure 40 includes a light emitting unit 41 and a filter unit. The light emitting unit 41 is used to emit a light beam of a specific wavelength so that the light beam is in contact with the marking medium so as to be absorbed by the marking medium. The filter unit is arranged on the light emitting unit 41 to filter the light source other than the light beam. There are multiple light source structures 40, and the multiple light source structures 40 are arranged at intervals around the central axis of the ejection unit 22. In this way, the light beam emitted by the light emitting unit 41 excites the luminous characteristics of the marking medium, so that the marking medium emits a light beam and is photographed by the camera structure 50 during the ejection process, which improves the shooting clarity of the camera structure 50 and is conducive to the image processing and data analysis of the control device 60. At the same time, the filter unit filters out the light source other than the light beam of a specific wavelength emitted by the light emitting unit 41, improves the purity of the light emitting unit 41 irradiating the marking medium, and also improves the energy utilization efficiency. At the same time, the arrangement of multiple light source structures 40 provides uniform and wide-angle illumination coverage, ensuring that the ejected medium 1 to be ejected can be effectively excited and recorded, avoiding blind spots in illumination, and improving the integrity and reliability of image data.

[0055] In this embodiment, the number of light source structures 40 is two.

[0056] It should be noted that the number of light source structures 40 is not limited thereto, and can be adjusted according to working conditions and usage requirements. Optionally, the number of light source structures 40 is three, four, six, seven, or more.

[0057] Specifically, the fuel injector detection device further includes a filter. The filter is disposed on the camera structure 50 to filter light other than the detection light. In this way, the filter can filter out other light sources except the detection light emitted by the marking medium, thereby avoiding interference from other light sources, improving the contrast and clarity of the captured image, making the features of the medium 1 to be sprayed during the spraying process more obvious, and facilitating subsequent image processing and analysis procedures, reducing the difficulty of later image processing, and thereby improving the quality of image data and the accuracy of data analysis.

[0058] Specifically, there are multiple camera structures 50, and the multiple camera structures 50 are arranged at intervals around the central axis of the ejection part 22 to shoot the medium to be ejected 1 at multiple angles. In this way, the above arrangement can simultaneously shoot the medium to be ejected 1 from different angles, and can fully capture the ejection characteristics of the medium to be ejected 1, reduce blind spots or data loss caused by a single viewing angle, and improve data integrity and reliability.

[0059] In this embodiment, the number of the camera structures 50 is two.

[0060] It should be noted that the number of camera structures 50 is not limited thereto, and can be adjusted according to working conditions and usage requirements. Optionally, the number of camera structures 50 is three, four, six, seven, or more.

[0061] Specifically, the specific use process of the injector detection equipment is as follows:

[0062] First, the staff places the injector detection equipment in a light-proof environment, such as a dark room or a light-proof environment created by light-shielding materials.

[0063] Then, the staff opens the control valve 83 to add the fluorescent agent from the containing chamber 81 into the storage chamber 11, and starts the stirring assembly 70 to stir the fuel and the fluorescent agent in the storage chamber 11 to improve the dispersion uniformity of the fluorescent agent.

[0064] Afterwards, the pump body structure 23 is started to draw the fuel mixed with the fluorescent agent from the storage structure 10 to the injector, and then spray it out through the injector. During this process, the regulating component 30 can control the pressure of the fuel to ensure the stability of the fuel injection.

[0065] At the same time, the light-emitting part 41 is turned on. After the fuel is sprayed out from the injector, the ultraviolet light emitted by the light-emitting part 41 can excite the fluorescent agent in the fuel, causing the fluorescent agent to emit bright light. The synchronously started high-speed camera will capture the entire injection process in real time, record every detail, and upload the image data to the control device 60. The image processing unit in the control device 60 will perform data analysis and processing on the uploaded image, analyze the size, distribution, speed of the oil droplets and the uniformity of the overall injection pattern, and use a specific algorithm to track the trajectory of the oil droplets, evaluate the stability of the injector, convert the analysis results into multiple performance indicators, and display them on the user interface in the form of graphics and tables.

[0066] Finally, the system will compile the test results into a detailed report. The report content includes image data, performance curves and statistical analysis of key parameters, etc., which is convenient for staff to conduct further analysis and archiving, and provide scientific and accurate data support for the performance evaluation of the injector.

[0067] Optionally, the staff can also adjust the fuel pressure by adjusting the components to simulate the injection conditions under different working conditions.

[0068] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0069] The injector detection device is used to be arranged in an opaque environment. The storage structure of the injector detection device has a storage chamber and a liquid outlet. The storage chamber is connected to the liquid outlet. The storage chamber is used to store the medium to be sprayed, and the medium to be sprayed includes a marking medium. The spray assembly is arranged outside the storage structure. The liquid suction part of the spray assembly is connected to the liquid outlet to drive the medium to be sprayed from the storage chamber to the spray part of the spray assembly and spray it out. The adjustment component is arranged on the spray assembly, and the adjustment component is used to adjust the pressure of the medium to be sprayed flowing in the spray assembly. The light source structure is used to irradiate the medium to be sprayed sprayed by the spray part, and make the marking medium emit a detection light. The camera structure is used to shoot the medium to be sprayed sprayed by the spray part, and send the shooting result to the control device. In this way, when the staff evaluates the performance of the fuel injector, the above setting, on the one hand, improves the contrast and clarity of the trajectory of the medium to be sprayed in the image through the light source structure and the marking medium, making the detection and analysis of the medium to be sprayed more intuitive and accurate; on the other hand, the above setting of the camera structure can capture and record the dynamic changes of the medium to be sprayed at the moment of spraying, including the key characteristics of the medium to be sprayed, such as the spray angle, spray distance and distribution uniformity, thereby improving the observation accuracy of the medium to be sprayed. At the same time, the control device evaluates the key characteristics and spray performance of the fuel injector in an all-round and high-precision manner according to the shooting structure provided by the camera structure, thereby improving the accuracy of the evaluation of the injection performance of the fuel injector, and thus solving the problem of low accuracy of the evaluation of the injection performance of the fuel injector in the prior art. At the same time, the above setting of the adjustment component, on the one hand, ensures that the injection part sprays under the set pressure conditions, ensures the operating stability of the medium to be sprayed, and improves the detection accuracy and repeatability of the fuel injector detection equipment; on the other hand, it can also control the pressure of the medium to be sprayed, and can simulate the actual working environment of the fuel injector under different working conditions, so as to achieve the comparability and repeatability of the test results, and provide a reliable basis for the design optimization and quality control of the fuel injector.

[0070] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0071] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0072] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fuel injector detection device, used to be set in a light-proof environment, characterized in that: The injector detection device comprises: A storage structure (10) comprising a storage chamber (11) and a liquid outlet (12), wherein the storage chamber (11) is in communication with the liquid outlet (12), the storage chamber (11) is used to store a medium (1) to be sprayed, and the medium (1) to be sprayed comprises a marking medium; A spray assembly (20) is arranged outside the storage structure (10), and a liquid suction portion (21) of the spray assembly (20) is connected to the liquid outlet (12) to drive the medium (1) to be sprayed to flow from the storage chamber (11) to the spray portion (22) of the spray assembly (20) and spray out; an adjusting component (30), arranged on the injection component (20), the adjusting component (30) being used to adjust the pressure of the medium to be injected (1) flowing in the injection component (20); A light source structure (40) for irradiating the medium to be sprayed (1) sprayed by the spraying portion (22) and causing the marking medium to emit detection light; The camera structure (50) is used to photograph the medium to be sprayed (1) sprayed by the spraying part (22) and send the photographing result to the control device (60).

2. The fuel injector detection device according to claim 1, characterized in that: The fuel injector detection device further comprises a stirring assembly (70), wherein the stirring assembly (70) comprises a stirring structure (71), wherein the stirring structure (71) is rotatably arranged on the storage structure (10) and is located in the storage chamber (11) so as to stir the medium (1) to be sprayed.

3. The fuel injector detection device according to claim 2, characterized in that: The stirring assembly (70) further comprises a driving structure (72), wherein the driving structure (72) is arranged on the storage structure (10) and is located outside the storage cavity (11), and the driving structure (72) is drivingly connected to the stirring structure (71) to drive the stirring structure (71) to rotate.

4. The fuel injector detection device according to claim 1, characterized in that: The injection assembly (20) comprises: Pump structure (23); A communication structure (24) is arranged between the pump body structure (23) and the injection portion (22); The two ends of the pump body structure (23) are respectively connected to the liquid outlet (12) and the injection portion (22) through the communication structure (24); or, one end of the pump body structure (23) is connected to one of the liquid outlet (12) and the injection portion (22), and the other end of the pump body structure (23) is connected to the other of the liquid outlet (12) and the injection portion (22) through the communication structure (24); Wherein, the liquid suction part (21) is arranged on the pump body structure (23) and / or the connecting structure (24).

5. The fuel injector detection device according to claim 4, characterized in that: The regulating component (30) is arranged on the communication structure (24) and connected to the control device (60), and the regulating component (30) comprises: a pressure detection structure, wherein a detection end of the pressure detection structure extends into the communication structure (24) to detect the pressure of the medium to be sprayed (1) and send the detection data to the control device (60); The regulating structure is arranged on the connecting structure (24), and the control device (60) controls the activation of the regulating structure according to the detection data to adjust the flow rate of the medium (1) to be sprayed in the connecting structure (24).

6. The fuel injector detection device according to claim 1, characterized in that: The fuel injector detection device further comprises a containing structure (80), wherein the containing structure (80) is arranged above the storage structure (10); The containing structure (80) comprises a containing cavity (81) and a liquid flow portion (82), the containing cavity (81) and the liquid flow portion (82) are in communication, and the containing cavity (81) is used to contain the marking medium; The storage structure (10) further comprises a liquid inlet (13), wherein the liquid inlet (13) is in communication with the liquid flow portion (82) so as to allow the marking medium to flow from the accommodating cavity (81) into the storage cavity (11).

7. The fuel injector detection device according to claim 6, characterized in that: The liquid flow portion (82) is tubular, and the containing structure (80) comprises a control valve (83). The control valve (83) is arranged on the liquid flow portion (82) to control the flow rate of the marking medium in the liquid flow portion (82).

8. The fuel injector detection device according to claim 1, characterized in that: The light source structure (40) comprises: A light emitting unit (41) for emitting a light beam of a specific wavelength so as to be absorbed by the marking medium by bringing the light beam into contact with the marking medium; A filter portion, arranged on the light emitting portion (41) to filter light sources other than the light beam; There are a plurality of light source structures (40), and the plurality of light source structures (40) are arranged at intervals around the central axis of the injection portion (22).

9. The fuel injector detection device according to claim 8, characterized in that: The fuel injector detection device further comprises a filter element, which is arranged on the imaging structure (50) to filter light other than the detection light.

10. The fuel injector detection device according to claim 1, characterized in that: There are a plurality of camera structures (50), and the plurality of camera structures (50) are arranged at intervals around the central axis of the spraying portion (22) so as to be used for photographing the medium (1) to be sprayed at multiple angles.

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