A secondary oil tank detection device
Patent Information
- Application Number
- CN202522505797.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-26
- Publication Date
- 2026-10-13
- Estimated Expiration
- 2035-11-26
AI Technical Summary
[0002]现有的副油箱在安装使用前，应按要求检查副油箱完好情况，重点要检查油尽信号传感器和输油泵，油尽信号传感器故障会导致副油箱油尽之后燃油增压泵继续工作进入干运转状态，易导致油泵电机故障；输油泵故障会导致副油箱内燃油无法输出使用
实际应用中，操作人员检查连接电缆完好后，将连接电缆两端分别与副油箱线缆插头和控制面板上检测接口相连，打开S1电源开关，多功能数显表自检后，先进行连接电缆接通信号的测试，接通S4通断开关后，L1油泵工作指示灯燃亮则说明通断电路工作正常；当副油箱内燃油耗尽时，接通S3油尽开关，三分钟后L2通断指示灯亮，则说明油尽信号传感器工作正常；本实用新型无需多人协同就能完成副油箱的检测，使得副油箱的检测过程更省时省力，工作质效更高。
Smart Images
Figure CN224848110U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aviation maintenance technology, specifically to an auxiliary fuel tank testing device. Background Technology
[0002] Before installation and use, existing auxiliary fuel tanks should be inspected for their integrity, with particular attention to the fuel low-fuel signal sensor and the fuel delivery pump. A faulty fuel low-fuel signal sensor can cause the fuel booster pump to continue operating in a dry-running state after the auxiliary fuel tank is empty, potentially leading to pump motor failure. A faulty fuel delivery pump will prevent the fuel in the auxiliary fuel tank from being delivered for use. However, current testing methods require multiple people to complete, making the auxiliary fuel tank inspection time-consuming, labor-intensive, and inefficient. Utility Model Content
[0003] The purpose of this invention is to address the above-mentioned shortcomings by providing a secondary fuel tank testing device that can complete the testing of secondary fuel tanks without the need for multiple people to work together, making the testing process more time-saving, labor-saving, and efficient.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: A secondary fuel tank testing device includes a testing equipment box and a connecting cable. A control panel is located at the opening of the testing equipment box. The control panel includes a FU1 fuse, an S1 power switch, a testing interface, an S2 oil pump switch, an S3 oil low switch, an S4 on / off switch, an L3 oil low indicator light, an L2 on / off indicator light, an L1 oil pump indicator light, and a multi-function digital display. The FU1 fuse and the S1 power switch are connected in series. The current output terminal of the S1 power switch is connected to the multi-function digital display for detecting current and voltage. The multi-function digital display has multiple branches. The first branch S2 includes the oil pump switch and the L1 oil pump indicator light connected in series. The second branch includes the S3 oil low switch. The third branch includes the S4 on / off switch and the L2 on / off indicator light connected in series. The fourth branch includes the L3 oil low indicator light. The first, second, third, and fourth branches are respectively connected to the corresponding ports of the testing interface.
[0005] Furthermore, a storage battery is installed inside the testing equipment box.
[0006] Furthermore, the control panel is also equipped with a battery charging port, which is used to charge the battery.
[0007] Furthermore, a cover is rotatably connected to the testing equipment box.
[0008] The beneficial effects of this utility model are: In practical applications, after checking that the connecting cable is intact, the operator connects both ends of the connecting cable to the auxiliary fuel tank cable plug and the detection interface on the control panel, respectively. After turning on the S1 power switch and performing a self-test on the multi-function digital display, the operator first tests the connection signal of the connecting cable. If the L1 fuel pump working indicator light illuminates after turning on the S4 on / off switch, it indicates that the on / off circuit is working normally. When the fuel in the auxiliary fuel tank is exhausted, the S3 fuel depletion switch is turned on. After three minutes, the L2 on / off indicator light illuminates, indicating that the fuel depletion signal sensor is working normally. This utility model can complete the detection of the auxiliary fuel tank without the need for multiple people to cooperate, making the detection process more time-saving, labor-saving, and efficient. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the control panel structure in this utility model; Figure 3 This is the circuit schematic diagram of this utility model; Attached reference numerals: 1. Testing equipment box; 2. Control panel; 2.1. FU1 fuse; 2.2. S1 power switch; 2.3. Battery charging port; 2.4. Testing interface; 2.5. S2 oil pump switch; 2.6. S3 oil low switch; 2.7. S4 on / off switch; 2.9. L3 oil low indicator light; 2.8. L1 oil pump working indicator light; 2.10. Multifunctional digital display; 2.11. Detailed Implementation
[0010] like Figure 1 , Figure 2 and Figure 3 As shown, a secondary fuel tank testing device includes a testing device box 1 and a connecting cable. A control panel 2 is located at the opening of the testing device box 1. The control panel 2 is equipped with the following components: FU1 fuse 2.1, S1 power switch 2.2, testing interface 2.4, S2 fuel pump switch 2.5, S3 fuel low switch 2.6, S4 on / off switch 2.7, L3 fuel low indicator light 2.9, L2 on / off indicator light 2.8, L1 fuel pump working indicator light 2.10, and a multi-function digital display 2.11. The FU1 fuse 2.1 and the S1 power switch 2.2 are connected in series. The current output terminal of power switch 2.2 is connected to a multi-function digital display meter 2.11 for detecting current and voltage. The multi-function digital display meter 2.11 is connected to multiple branches. The first branch S2 includes an oil pump switch 2.5 connected in series with an L1 oil pump working indicator light 2.10. The second branch includes an S3 oil depletion switch 2.6. The third branch includes an S4 on / off switch 2.7 connected in series with an L2 on / off indicator light 2.8. The fourth branch includes an L3 oil depletion working indicator light 2.9. The first, second, third, and fourth branches are respectively connected to the corresponding ports of the detection interface 2.4.
[0011] like Figure 1 , Figure 2 and Figure 3 As shown, a storage battery is installed inside the testing equipment box 1. In this embodiment, after the multi-functional digital display 2.11 performs a self-test, it displays the current battery voltage. After confirming that the voltage is normal, the testing process can begin. The storage battery is used to supply power to the parallel branches.
[0012] like Figure 1 , Figure 2 and Figure 3 As shown, the control panel 2 is also provided with a battery charging port 2.3, which is used to charge the battery; in this embodiment, the battery can be charged through the battery charging port 2.3.
[0013] like Figure 1 , Figure 2 and Figure 3 As shown, a lid is rotatably connected to the testing equipment box 1; in this embodiment, opening and closing the lid can prevent external dust from entering the interior.
[0014] Working Principle: After the operator checks that the connecting cable is intact, connect both ends of the connecting cable to the auxiliary fuel tank cable plug and the detection interface 2.4 on the control panel 2 respectively. Turn on the S1 power switch 2.2. After the multi-function digital display 2.11 performs a self-test, it displays the current battery voltage. After confirming that the voltage is normal, the testing process can begin. First, test the connection signal of the connecting cable: after turning on the S4 on / off switch 2.7, if the L2 on / off indicator light 2.8 illuminates, it indicates that the on / off circuit is working normally. Then, test the fuel pump: before turning on the S2 fuel pump switch 2.5, ensure that the fuel tank outlet is unobstructed, and connect the turbine flow meter and fuel line to the outlet, and prepare... Prepare the waste oil drum for receiving oil, preventing oil spraying from the outlet. After preparation, turn on the S2 oil pump switch 2.5. The auxiliary oil tank indicator light will illuminate, and the oil pump will start working, with fuel flowing out of the outlet. After the fuel flow stabilizes, read the turbine flow counter value. If the value is within the specified range, it indicates that the fuel pump is working normally. When the fuel in the auxiliary oil tank is exhausted, turn on the S3 fuel depletion switch 2.6. After three minutes, the L3 fuel depletion indicator light 2.9 will illuminate, indicating that the fuel depletion signal sensor is working normally. This utility model can complete the auxiliary oil tank detection without the need for multiple people to cooperate, making the auxiliary oil tank detection process more time-saving, labor-saving, and with higher work efficiency.
[0015] The specific embodiments described herein are merely illustrative examples of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the scope defined by this utility model.
Claims
1. A secondary fuel tank testing device, characterized in that: The device includes a testing equipment box (1) and connecting cables, a control panel (2) located at the opening of the testing equipment box (1), and the following components installed on the control panel (2): FU1 fuse (2.1), S1 power switch (2.2), testing interface (2.4), S2 oil pump switch (2.5), S3 oil depletion switch (2.6), S4 on / off switch (2.7), L3 oil depletion indicator light (2.9), L2 on / off indicator light (2.8), L1 oil pump working indicator light (2.10), and a multi-function digital display (2.11). The FU1 fuse (2.1) and S1 power switch (2.2) are connected in series. The current output terminal of the power switch (2.2) is connected to a multi-function digital display meter (2.11) for detecting current and voltage. The multi-function digital display meter (2.11) is connected to multiple branches. The first branch S2 includes an oil pump switch (2.5) and an L1 oil pump working indicator light (2.10) connected in series. The second branch includes an S3 oil-out switch (2.6). The third branch includes an S4 on / off switch (2.7) and an L2 on / off indicator light (2.8) connected in series. The fourth branch includes an L3 oil-out working indicator light (2.9). The first branch, the second branch, the third branch, and the fourth branch are respectively connected to the corresponding ports of the detection interface (2.4).
2. The auxiliary fuel tank testing device according to claim 1, characterized in that, The testing equipment box (1) is equipped with a storage battery.
3. The auxiliary fuel tank testing device according to claim 2, characterized in that, The control panel (2) is also provided with a battery charging port (2.3), which is used to charge the battery.
4. The auxiliary fuel tank testing device according to claim 1, characterized in that, The testing equipment box (1) is rotatably connected to a box cover.