A new electric engine oil filling vehicle

Abstract

The application relates to the technical field of oil injection, and discloses a novel electric engine lubricating oil injection vehicle, which is a test bench, the front of the test bench is provided with a space and is closed through a cabinet door, the inside of the test bench comprises electrical elements and hydraulic elements, the electrical elements and the hydraulic elements are regionally isolated, and are placed according to the factors of size, weight and use frequency. The novel electric engine lubricating oil injection vehicle can provide space utilization rate through regional isolation and reasonable placement of the electrical elements and the hydraulic elements, can balance the bearing of the equipment as much as possible, can enable an operator to quickly locate required elements during maintenance, can reduce operation time, can improve work efficiency, can centrally arrange instruments and meters that need to be regularly detected, and can place the instruments and meters in a relatively front position, so that regular maintenance and calibration are facilitated, a principle diagram and operation instruction can provide ideas for workers, and maintenance personnel can quickly find the positions of elements that need to be regularly maintained.

Description

Technical Field

[0001] This invention relates to the field of oil filling technology, specifically a novel electric engine lubricating oil filling vehicle. Background Technology

[0002] Lubricating oil is a liquid or semi-solid lubricant used in various types of automobiles and mechanical equipment to reduce friction and protect machinery and processed parts. Its main functions include lubrication, auxiliary cooling, rust prevention, cleaning, sealing, and buffering.

[0003] This novel electric engine oil filling truck is used to fill the oil systems of A5 aircraft engines, APUs, and generators. Existing oil filling truck technologies typically involve simply installing and placing components of different sizes and weights in a single, sequential manner. This unreasonable equipment layout leads to maintenance difficulties, chaotic piping, and difficulty in locating leaks, increasing maintenance costs and reducing equipment lifespan. Furthermore, while oil filling trucks usually strive to avoid accidents due to the nature of the medium and typically include safety protection measures, they lack warning mechanisms in the event of an accident. Therefore, a new type of electric engine oil filling truck is urgently needed. Summary of the Invention

[0004] The purpose of this invention is to provide a novel electric motor lubricating oil filling vehicle to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a novel electric engine lubricating oil filling vehicle, the lubricating oil filling vehicle being a test bench, the front of the test bench having a space that is enclosed by a cabinet door, the interior of the test bench including electrical components and hydraulic components, and the electrical components and hydraulic components being isolated in different areas and arranged according to factors such as size, weight and frequency of use; The electrical components include an oil tank assembly and a motor-oil pump assembly. The oil tank assembly and the motor-oil pump assembly are located at the left cabinet door of the test bench, with the oil tank assembly positioned above the motor-oil pump assembly. The electrical components also include instruments that require periodic inspection, including filters, pressure sensors, and flow meters. These instruments require periodic inspection are located at the right cabinet door of the test bench. The hydraulic components are adjustable hydraulic components, including a direct-acting relief valve, an adjustment switch N1, and a sampling switch N2, which are located on the test bench panel. The test bench panel is located at the top of the center of the front of the lubricating oil filling vehicle and is displayed in a flat manner. The lubricating oil filling vehicle also includes electrical buttons, indicator lights, schematic diagrams, and operating instructions placed on the observation panel, which is located above the test bench panel and is displayed at an angle.

[0006] Preferably, the pipeline is laid in the same direction as the pipeline, and at least 10mm gaps are left between parallel or intersecting pipelines. Pipelines with greater vibration are fixed with brackets. After the pipeline is connected, a pressure test is conducted at the working pressure, and no leakage is required within five minutes.

[0007] Preferably, the lubricating oil filling truck also includes a work inspection method: to check the pressure sensor reading before using the equipment, confirm that the reading is zero, check the condition of the hose, and have the operator confirm that the hose is not damaged, cracked, or delaminated.

[0008] Preferably, the lubricating oil filling vehicle also includes a test bench self-circulation method: for the system to perform self-circulation and cleaning, the test bench panel is equipped with start and stop buttons, used to start the motor oil pump group to make the system perform self-circulation and cleaning until the system medium reaches GJB420B6 ​​level, and then stop self-circulation.

[0009] Preferably, the lubricating oil filling vehicle also includes a product filling method: the hose is connected to the product, the electric oil pump group is turned on by the start button on the test bench panel, at which time the solenoid reversing valve D2 is energized, the system flow rate is adjusted by adjusting the speed of the motor oil pump group and the two-way flow control valve, the system pressure is adjusted by adjusting the direct-acting overflow valve A1, the product is tested according to the corresponding process specifications, after the test is completed, the motor oil pump group is turned off, the shut-off valve N1 is fully opened, the system is depressurized, and the hose is removed.

[0010] Preferably, before starting work, all switches except N3 are turned off, including electrical switches, which are all in the de-energized state. The medium is lubricating oil, the working pressure is 0.016~0.4Mpa, the flow rate is 0.5~3L / min, the solenoid valve D1 is de-energized and turned on when the pressure sensor P1 or P2 ≥ 0.4Mpa, the relief valve A1 allows the pressure to be adjusted from 0~0.4Mpa, and the solenoid valve D1 is opened when the pressure exceeds 0.45Mpa.

[0011] Preferably, the oil tank assembly is equipped with a filler cap on top for concealment, and an air filter is also provided on top to filter the air in the oil tank. The air filter has a capacity of 260L / min. The oil suction port of the oil tank assembly is equipped with an 80μm oil suction filter to coarsely filter the test medium. The bottom of the oil tank assembly is equipped with an oil drain switch for equipment maintenance and repair.

[0012] Preferably, a 3μm fine filter is installed at the outlet end of the motor oil pump unit to filter system impurities and prevent contaminants from entering the product. A sampling valve is installed in the return oil circuit. A sound control component and an LED bulb are installed on the top of the lubricating oil filling vehicle. A pressure sensor and a flow meter are installed at the outlet end of the lubricating oil filling vehicle to observe the system pressure and flow. When the set value is exceeded, the sound control component and the LED bulb are activated to produce sound and light.

[0013] Preferably, the entire oil tank assembly is welded from high-quality stainless steel 06Cr19Ni10, and can be filled with a maximum of 50L of test medium. It is equipped with a liquid level detector to confirm the liquid level. The bottom frame of the oil tank assembly is welded from Q235-AF, and the system conduits are bent from 1Cr18Ni9Ti. The oil suction line is Φ10 diameter, the pressure line is Φ6 diameter, and the oil return line is Φ8 diameter.

[0014] Compared with the prior art, the beneficial effects achieved by the present invention are: First, this invention improves space utilization by isolating and rationally arranging electrical and hydraulic components, ensuring a balanced load-bearing capacity and preventing uneven weight distribution. During maintenance, operators can quickly locate required components, reducing operation time and improving efficiency. Instruments requiring regular testing are centrally located and placed relatively forward for easy periodic inspection and calibration. Schematic diagrams and operating instructions provide guidance and facilitate quick location of components requiring maintenance. Pressure testing under operating pressure ensures the sealing and stability of the pipeline system, providing reliable lubricant filling. This invention solves the problem of haphazardly installing and placing components of different sizes and weights in a single order, leading to maintenance difficulties, chaotic pipeline layouts, and difficulty in locating leaks.

[0015] Secondly, the method of using this invention is as follows: After the test medium is loaded into the oil tank, the power is turned on, the motor oil pump group is started, and the system flow rate is adjusted by adjusting the speed of the motor oil pump group and the two-way flow control valve. The system pressure is set by adjusting the direct-acting overflow valve A1. The product is tested according to the process specifications. At the same time, the system can be self-circulated and cleaned through the solenoid reversing valve D1 to improve the cleanliness of the system. The reel inlet and outlet are equipped with M14X1... The 74° external tapered stainless steel connector and hose allow for lubricating oil flow. Specifications include 1MPa, 10m, and a 6mm diameter. Made of TPU material, it is wear-resistant, oil-resistant, and highly flexible, preventing oil corrosion. By checking the pressure sensor and hose condition, potential safety hazards can be detected and eliminated promptly, preventing lubricating oil leaks or inaccurate filling due to equipment malfunction. The self-circulating cleaning function periodically removes impurities and contaminants from the system, ensuring the quality of the lubricating oil and preventing fatal errors caused by system contamination or engine malfunction. Adjusting the motor oil pump speed, two-way flow control valve, and direct-acting relief valve allows for flexible control of the filling flow and pressure to meet the filling requirements of different products. The solenoid valve D1 and relief valve A1 form a comprehensive protection mechanism. When the pressure exceeds the set value, the solenoid valve D1 automatically opens or is de-energized, while the overflow valve A1 limits the system pressure to prevent equipment damage or safety accidents caused by excessive pressure. By setting a clear working pressure and flow range, the filling process can be precisely controlled to ensure the accuracy and stability of filling. After the test is completed, the test bench should be cleaned and covered with a plug. When storing for a long time, it should be covered with a rainproof cloth and exposed to high temperature or humid environment.

[0016] Third, this invention effectively removes impurities and contaminants from the lubricating oil through dual filtration at the oil suction port and the outlet of the motor oil pump assembly, preventing large particles from entering the system and causing damage to system components. This ensures the cleanliness of the lubricating oil added to the engine, extending engine life. The real-time monitoring function of the pressure sensor and flow meter, combined with the alarm mechanism of the sound control component and LED bulb, automatically alarms when the set value is exceeded, reminding the operator to perform inspection and maintenance. The system uses automated components such as pressure sensors, flow meters, and electromagnetic reversing valves to automatically monitor and measure test parameters. Test data is observed and adjusted via the display screen, and the background automatically summarizes and stores the test data to ensure the stability and repeatability of the test. In case of overpressure or overflow... In case of insufficient flow, the system automatically issues an alarm signal to prompt operators for maintenance. Simultaneously, multi-stage protection via direct-acting overflow valves and solenoid directional valves ensures safe operation. The test bench is equipped with safety devices such as emergency stop switches, allowing for immediate response to emergencies. The oil tank assembly is welded from high-quality stainless steel, offering strong corrosion resistance and a long service life. The system conduits are made of bent stainless steel, ensuring smooth fluid flow and reducing corrosion and wear. The drain switch at the bottom of the oil tank assembly facilitates oil drainage during equipment maintenance and repair, reducing maintenance difficulty and labor intensity. The oil filler cap and air filter effectively prevent impurities from entering the oil tank, keeping the tank clean and reducing maintenance frequency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the circuit structure of the present invention; The components include: 1. Motorized oil pump assembly; 2. GPL low-pressure filter; 3. Pressure transmitter; 4. Turbine dosimeter; 5. Solenoid directional valve D1; 6. Two-way flow control valve; 7. Panel-mounted manual shut-off valve; 8. Solenoid directional valve D2; 9. Hydraulic hose assembly; 10. Reel; 11. Lubricating oil filling connector; 12. Low-pressure ball valve; 13. Panel-mounted manual shut-off valve; 14. Oil tank assembly; 15. Connector; 16. Gasket; 17. First tee connector; 18. Second tee connector; 19. Third tee connector; 20. Fourth tee connector; 21. First combined conduit; 22. Second combined conduit; 23. Third combined conduit; 24. Fourth combined conduit; 25. Direct-acting relief valve. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] This invention provides the following technical solutions: Example 1 Please see Figure 1 A new type of electric engine lubricating oil filling vehicle, the lubricating oil filling vehicle is a test bench. The front of the test bench has a space and is closed by a cabinet door. The interior of the test bench includes electrical components and hydraulic components, and the electrical components and hydraulic components are isolated in different areas and arranged according to factors such as size, weight and frequency of use. The electrical components include an oil tank assembly and a motor-oil pump assembly. The oil tank assembly and the motor-oil pump assembly are located at the left cabinet door of the test bench, with the oil tank assembly positioned above the motor-oil pump assembly. The electrical components also include instruments that require periodic inspection, including filters, pressure sensors, and flow meters. These instruments require periodic inspection are located at the right cabinet door of the test bench. The hydraulic components are adjustable hydraulic components, including a direct-acting relief valve, an adjustment switch N1, and a sampling switch N2, which are located on the test bench panel. The test bench panel is located at the top of the center of the front of the lubricating oil filling vehicle and is displayed in a flat manner. The motor-driven oil pump unit has the following specifications: 4.5L / min, 0.5MPa, 4-pole motor, 200W, inlet equipped with M18X1.5 74° external tapered stainless steel connector, outlet equipped with M14X1 74° external tapered stainless steel connector, motor: 1 / 4HP-380V oil pump + relief valve: TOP-12AVB, relief valve: 0.45MPa.

[0020] The lubricating oil filling vehicle also includes electrical buttons, indicator lights, schematic diagrams, and operating instructions placed on the observation panel, which is located above the test bench panel and is displayed at an angle.

[0021] Pipelines should be laid in the same direction as the pipeline, with at least a 10mm gap between parallel or intersecting pipelines. Pipelines should be fixed with supports where there is significant vibration. After the pipeline connection is completed, a pressure test should be conducted at the working pressure, and no leakage is required within five minutes.

[0022] The above technical solution improves space utilization by isolating and rationally arranging electrical and hydraulic components, ensuring a balanced load-bearing capacity and preventing uneven weight distribution. During maintenance, operators can quickly locate required components, reducing operation time and improving efficiency. Instruments requiring regular testing are centrally located and placed relatively close to the front for easy periodic inspection and calibration. Schematic diagrams and operating instructions provide guidance and facilitate quick location of components requiring regular maintenance. Pressure testing under operating pressure ensures the sealing and stability of the pipeline system, providing reliable assurance for lubricating oil filling. This solution addresses the problem of haphazard installation and placement of components of different sizes and weights, which often results in difficult maintenance due to unbalanced equipment layout, chaotic pipeline installation, and difficulty in locating leaks.

[0023] Example 2 Please see Figure 1 A new type of electric motor lubricating oil filling vehicle, the lubricating oil filling vehicle also includes a working inspection method: to check the pressure sensor reading before the equipment is used, to confirm that the reading is zero, to check the condition of the hose, and to have the operator confirm that the hose is not damaged, cracked, or delaminated.

[0024] The lubricating oil filling vehicle also includes a test bench self-circulation method: the system is used to circulate and clean itself. The test bench panel is equipped with start and stop buttons to start the motor oil pump group and make the system circulate and clean itself until the system medium reaches GJB420B6 ​​grade, at which point the self-circulation stops.

[0025] The lubricating oil filling vehicle also includes the product filling method: connect the hose to the product, turn on the electric oil pump group through the start button on the test bench panel, at this time the solenoid reversing valve D2 is in the energized state, adjust the system flow by adjusting the speed of the motor oil pump group and the two-way flow control valve, adjust the system pressure by adjusting the direct-acting overflow valve A1, test the product according to the corresponding process specifications, after the test is completed, turn off the motor oil pump group, fully open the shut-off valve N1, depressurize the system, and disconnect the hose.

[0026] Before starting work, turn off all switches except N3, including electrical switches, and ensure they are in the de-energized state. Use lubricating oil as the medium, with a working pressure of 0.016~0.4Mpa and a flow rate of 0.5~3L / min. Solenoid valve D1 is de-energized and activated when pressure sensor P1 or P2 ≥ 0.4Mpa. Relief valve A1 allows for pressure adjustment of 0~0.4Mpa. Solenoid valve D1 opens when the pressure exceeds 0.45Mpa.

[0027] The above technical solution is used as follows: After the test medium is loaded into the oil tank, the power is turned on, and the motor-driven oil pump unit is started. The system flow rate is adjusted by regulating the speed of the motor-driven oil pump unit and the two-way flow control valve. The system pressure is set by adjusting the direct-acting overflow valve A1. The product is tested according to the process specifications. The system can also be self-circulated and cleaned through the solenoid directional valve D1 to improve the cleanliness of the system. The reel inlet and outlet are equipped with M14X1... The 74° external tapered stainless steel connector and hose allow for lubricating oil flow. Specifications include 1MPa, 10m, and a 6mm diameter. Made of TPU material, it is wear-resistant, oil-resistant, and highly flexible, preventing oil corrosion. By checking the pressure sensor and hose condition, potential safety hazards can be detected and eliminated promptly, preventing lubricating oil leaks or inaccurate filling due to equipment malfunction. The self-circulating cleaning function periodically removes impurities and contaminants from the system, ensuring the quality of the lubricating oil and preventing fatal errors caused by system contamination or engine malfunction. Adjusting the motor oil pump speed, two-way flow control valve, and direct-acting relief valve allows for flexible control of the filling flow and pressure to meet the filling requirements of different products. The solenoid valve D1 and relief valve A1 form a comprehensive protection mechanism. When the pressure exceeds the set value, the solenoid valve D1 automatically opens or is de-energized, while the overflow valve A1 limits the system pressure to prevent equipment damage or safety accidents caused by excessive pressure. By setting a clear working pressure and flow range, the filling process can be precisely controlled to ensure the accuracy and stability of filling. After the test is completed, the test bench should be cleaned and covered with a plug. When storing for a long time, it should be covered with a rainproof cloth and exposed to high temperature or humid environment.

[0028] Example 3 Please see Figure 1 A novel electric engine lubricating oil filling vehicle is provided. The oil tank assembly is equipped with a filler cap on top for concealment, and an air filter is also provided on top to filter the air in the oil tank. The air filter has a capacity of 260L / min. The oil suction port of the oil tank assembly is equipped with an 80μm oil suction filter to coarsely filter the test medium. The bottom of the oil tank assembly is equipped with an oil drain switch for equipment maintenance and repair.

[0029] The outlet of the motor oil pump unit is equipped with a 3μm fine filter to filter system impurities and prevent contaminants from entering the product. A sampling valve is installed in the return oil circuit. A sound control component and an LED bulb are installed on the top of the lubricating oil filling vehicle. A pressure sensor and a flow meter are installed at the outlet of the lubricating oil filling vehicle to observe the system pressure and flow. When the set value is exceeded, the sound control component and the LED bulb are activated to produce sound and light.

[0030] The entire oil tank assembly is welded from high-quality stainless steel 06Cr19Ni10, and can be filled with a maximum of 50L of test medium. It is equipped with a liquid level detector to confirm the liquid level. The bottom frame of the oil tank assembly is welded from Q235-AF, and the system conduits are bent from 1Cr18Ni9Ti. The oil suction line is Φ10, the pressure line is Φ6, and the oil return line is Φ8.

[0031] Through the above technical solution, dual filtration at the oil suction port and the outlet of the motor oil pump group effectively removes impurities and contaminants from the lubricating oil, preventing large particles from entering the system and causing damage to system components. This ensures the cleanliness of the lubricating oil added to the engine, extending engine life. Real-time monitoring by pressure sensors and flow meters, combined with an alarm mechanism using sound control components and LED bulbs, automatically triggers an alarm when set values ​​are exceeded, reminding operators to perform inspection and maintenance. The system uses automated components such as pressure sensors, flow meters, and electromagnetic reversing valves to automatically monitor and measure test parameters. Test data is observed and adjusted via a display screen, and the background automatically summarizes and stores the test data to ensure the stability and repeatability of the test. In case of overpressure or excessive pressure... The system automatically issues alarm signals to prompt operators for maintenance based on flow conditions. Simultaneously, multi-stage protection via direct-acting overflow valves and solenoid directional valves ensures safe operation. The test bench is equipped with emergency stop switches and other safety devices, allowing for immediate response to emergencies. The oil tank assembly is welded from high-quality stainless steel, offering strong corrosion resistance and a long service life. System conduits are made of bent stainless steel, ensuring smooth fluid flow and reducing corrosion and wear. The drain switch at the bottom of the oil tank assembly facilitates oil drainage during maintenance and repair, reducing maintenance difficulty and labor intensity. The oil filler cap and air filter effectively prevent impurities from entering the oil tank, keeping the tank clean and reducing maintenance frequency.

[0032] During use, the regional isolation and rational placement of electrical and hydraulic components can improve space utilization and ensure that the load-bearing capacity of the equipment is as balanced as possible, preventing one side of the equipment from being unbalanced. During maintenance, operators can quickly locate the required components, reducing operation time and improving work efficiency. Among them, instruments that require regular testing are centrally located and placed in a relatively forward position for easy regular inspection and calibration. Schematic diagrams and operating instructions are used to provide staff with a clear understanding and facilitate maintenance personnel to quickly locate the components that require regular maintenance. Pressure holding tests under working pressure ensure the sealing and stability of the pipeline system, providing reliable protection for lubricating oil filling. This solves the problem of difficult maintenance and messy pipeline laying caused by the unreasonable installation and placement of components of different sizes and weights, which are usually done in a single order. The operating procedure is as follows: After the test medium is loaded into the oil tank, connect the power supply and start the motor-driven oil pump unit. Adjust the system flow rate by regulating the motor-driven oil pump unit speed and the two-way flow control valve. Set the system pressure by adjusting the direct-acting overflow valve A1. Test the product according to the process specifications. The system can also be self-circulated and cleaned through the solenoid directional valve D1 to improve the cleanliness of the system. The reel inlet and outlet are equipped with M14X1... The 74° external tapered stainless steel connector and hose allow for lubricating oil flow. Specifications include 1MPa, 10m, and a 6mm diameter. Made of TPU material, it is wear-resistant, oil-resistant, and highly flexible, preventing oil corrosion. By checking the pressure sensor and hose condition, potential safety hazards can be detected and eliminated promptly, preventing lubricating oil leaks or inaccurate filling due to equipment malfunction. The self-circulating cleaning function periodically removes impurities and contaminants from the system, ensuring the quality of the lubricating oil and preventing fatal errors caused by system contamination or engine malfunction. Adjusting the motor oil pump speed, two-way flow control valve, and direct-acting relief valve allows for flexible control of the filling flow and pressure to meet the filling requirements of different products. The solenoid valve D1 and relief valve A1 form a comprehensive protection mechanism. When the pressure exceeds the set value, the solenoid valve D1 automatically opens or is de-energized, while the overflow valve A1 limits the system pressure to prevent equipment damage or safety accidents caused by excessive pressure. By setting a clear working pressure and flow range, the filling process can be precisely controlled to ensure the accuracy and stability of filling. After the test is completed, the test bench should be cleaned and covered with a plug. When storing for a long time, it should be covered with a rainproof cloth and exposed to high temperature or humid environment.The system employs dual filtration at both the oil suction port and the outlet of the motor-driven oil pump assembly to effectively remove impurities and contaminants from the lubricating oil, preventing large particles from entering the system and causing damage to system components. This ensures the cleanliness of the lubricating oil supplied to the engine, extending engine life. Real-time monitoring by pressure sensors and flow meters, combined with an alarm mechanism using a sound control component and LED bulbs, automatically triggers an alarm when set values ​​are exceeded, alerting operators for inspection and maintenance. The system uses automated components such as pressure sensors, flow meters, and solenoid directional valves to automatically monitor and measure test parameters. Test data is displayed on a screen for adjustment, and the system automatically summarizes and stores test data in the background to ensure test stability and repeatability. In case of overpressure or overflow... Furthermore, the system automatically issues alarm signals to prompt operators for maintenance. Simultaneously, multi-stage protection via direct-acting overflow valves and solenoid directional valves ensures safe operation. The test bench is equipped with safety devices such as emergency stop switches, allowing for immediate response to emergencies. The oil tank assembly is welded from high-quality stainless steel, offering strong corrosion resistance and a long service life. System conduits are made of bent stainless steel, ensuring smooth fluid flow and reducing corrosion and wear. The drain switch at the bottom of the oil tank assembly facilitates oil drainage during equipment maintenance and repair, reducing maintenance difficulty and labor intensity. The oil filler cap and air filter effectively prevent impurities from entering the oil tank, keeping the tank clean and reducing maintenance frequency.

[0033] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel electric engine lubricating oil filling vehicle, characterized in that: The lubricating oil filling truck serves as a test bench. The front of the test bench has a space that is enclosed by a cabinet door. The interior of the test bench includes electrical and hydraulic components, which are separated into different areas and arranged according to factors such as size, weight, and frequency of use. The electrical components include an oil tank assembly and a motor-oil pump assembly. The oil tank assembly and the motor-oil pump assembly are located at the left cabinet door of the test bench, with the oil tank assembly positioned above the motor-oil pump assembly. The electrical components also include instruments that require periodic inspection, including filters, pressure sensors, and flow meters. These instruments require periodic inspection are located at the right cabinet door of the test bench. The hydraulic components are adjustable hydraulic components, including a direct-acting relief valve, an adjustment switch N1, and a sampling switch N2, which are located on the test bench panel. The test bench panel is located at the top of the center of the front of the lubricating oil filling vehicle and is displayed in a flat manner. The lubricating oil filling vehicle also includes electrical buttons, indicator lights, schematic diagrams, and operating instructions placed on the observation panel, which is located above the test bench panel and is displayed at an angle.

2. The novel electric engine lubricating oil filling vehicle according to claim 1, characterized in that: Pipelines should be laid in the same direction as the pipeline, with at least a 10mm gap between parallel or intersecting pipelines. Pipelines should be fixed with supports where there is significant vibration. After the pipeline connection is completed, a pressure test should be conducted at the working pressure, and no leakage is required within five minutes.

3. The novel electric engine lubricating oil filling vehicle according to claim 1, characterized in that: The lubricating oil filling truck also includes a work inspection method: to check the pressure sensor reading before using the equipment, confirm that the reading is zero, check the condition of the hose, and have the operator confirm that the hose is not damaged, cracked, or delaminated.

4. The novel electric engine lubricating oil filling vehicle according to claim 1, characterized in that: The lubricating oil filling vehicle also includes a test bench self-circulation method: the system is used to circulate and clean itself. The test bench panel is equipped with start and stop buttons to start the motor oil pump group and make the system circulate and clean itself until the system medium reaches GJB420B6 ​​grade, at which point the self-circulation stops.

5. A novel electric engine lubricating oil filling vehicle according to claim 1, characterized in that: The lubricating oil filling vehicle also includes the product filling method: connect the hose to the product, turn on the electric oil pump group through the start button on the test bench panel, at this time the solenoid reversing valve D2 is in the energized state, adjust the system flow by adjusting the speed of the motor oil pump group and the two-way flow control valve, adjust the system pressure by adjusting the direct-acting overflow valve A1, test the product according to the corresponding process specifications, after the test is completed, turn off the motor oil pump group, fully open the shut-off valve N1, depressurize the system, and disconnect the hose.

6. A novel electric engine lubricating oil filling vehicle according to claims 3-6, characterized in that: Before starting work, turn off all switches except N3, including electrical switches, and ensure they are in the de-energized state. Use lubricating oil as the medium, with a working pressure of 0.016~0.4Mpa and a flow rate of 0.5~3L / min. Solenoid valve D1 is de-energized and activated when pressure sensor P1 or P2 ≥ 0.4Mpa. Relief valve A1 allows for pressure adjustment of 0~0.4Mpa. Solenoid valve D1 opens when the pressure exceeds 0.45Mpa.

7. A novel electric engine lubricating oil filling vehicle according to claim 1, characterized in that: The oil tank assembly is equipped with a filler cap on top for concealment, and an air filter is also installed on top to filter the air in the oil tank. The air filter has a capacity of 260L / min. The oil suction port of the oil tank assembly is equipped with an 80μm oil suction filter to coarsely filter the test medium. The bottom of the oil tank assembly is equipped with an oil drain switch for equipment maintenance and repair.

8. A novel electric engine lubricating oil filling vehicle according to claim 1, characterized in that: The outlet of the motor oil pump unit is equipped with a 3μm fine filter to filter system impurities and prevent contaminants from entering the product. A sampling valve is installed in the return oil circuit. A sound control component and an LED bulb are installed on the top of the lubricating oil filling vehicle. A pressure sensor and a flow meter are installed at the outlet of the lubricating oil filling vehicle to observe the system pressure and flow. When the set value is exceeded, the sound control component and the LED bulb are activated to produce sound and light.

9. A novel electric engine lubricating oil filling vehicle according to claim 1, characterized in that: The entire oil tank assembly is welded from high-quality stainless steel 06Cr19Ni10, and can be filled with a maximum of 50L of test medium. It is equipped with a liquid level detector to confirm the liquid level. The bottom frame of the oil tank assembly is welded from Q235-AF, and the system conduits are bent from 1Cr18Ni9Ti. The oil suction line is Φ10, the pressure line is Φ6, and the oil return line is Φ8.

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