A high pressure fuel testing apparatus

Abstract

The utility model relates to high pressure fuel test technical field, and disclose a kind of high pressure fuel test equipment, including workbench, support leg, the bottom of the workbench is fixedly installed with two groups of mutually parallel support leg, the bottom of the support leg is fixedly installed with rubber antiskid pad, the corner of the one side of workbench top is fixedly installed with fuel tank, the one side of the top of fuel tank is fixedly installed with fuel delivery structure, the side of fuel delivery structure is fixedly installed with connecting pipe, the other end is fixedly connected with fuel mass flowmeter, the other corner of the one side of fuel tank is provided with fuel backflow structure in the top of workbench, the top of fuel tank is provided with fuel extraction structure corresponding to fuel backflow side, the utility model can accurately simulate various dynamic conditions of high pressure fuel system in actual operation, such as fuel injection process under different pressure, temperature, flow conditions.

Description

Technical Field

[0001] This utility model relates to the field of high-pressure fuel testing technology, specifically a high-pressure fuel testing device. Background Technology

[0002] In modern industry and transportation, high-pressure fuel systems are being used more and more widely. In automobile engines, to meet increasingly stringent emission regulations and higher requirements for fuel economy and power performance, high-pressure fuel injection technology is constantly being innovated. For example, the injection pressure of diesel engines has increased from tens of megapascals in the early days to 200 megapascals or even higher today. Gasoline engines are also developing towards high-pressure direct injection. In the aerospace field, aircraft engines have extremely high requirements for fuel injection accuracy and pressure stability to ensure efficient combustion under different flight conditions.

[0003] As the pressure of high-pressure fuel systems continues to increase and their structural complexity grows, the difficulty of testing their performance has also increased significantly. Traditional fuel testing equipment has obvious limitations in terms of pressure output range, precision control, and the ability to simulate complex fuel injection patterns. Previous equipment could not accurately simulate the dynamic operating conditions of high-pressure fuel systems in actual operation, resulting in the inability to comprehensively and accurately evaluate the performance and reliability of high-pressure fuel systems and related components.

[0004] Meanwhile, to ensure the safety and stability of high-pressure fuel systems after they are put into use, a large number of rigorous tests need to be conducted during the research and development and production stages. This urgently requires a testing device that can accurately simulate the actual working environment of high-pressure fuel, and has high-precision pressure and flow control as well as reliable data acquisition and analysis functions, in order to meet the industry's growing demand for performance testing of high-pressure fuel systems and promote the further development and application of high-pressure fuel technology.

[0005] Traditional testing equipment has a low degree of automation and usually requires manual operation of pressure pumps, valves and other equipment to control the testing process. This is not only labor-intensive, but also makes it difficult to ensure the consistency and stability of the testing conditions and is prone to human error. Therefore, we propose a high-pressure fuel oil testing device. Utility Model Content

[0006] Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this invention provides a high-pressure fuel testing device that solves the aforementioned problems.

[0008] (II) Technical Solution

[0009] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a high-pressure fuel oil testing device, including a workbench and support legs. Two sets of parallel support legs are fixedly installed on the bottom of the workbench, and rubber anti-slip pads are fixedly installed on the bottom of each support leg. A fuel tank is fixedly installed at a corner on one side of the top of the workbench. A fuel delivery structure is fixedly installed on one side of the top of the fuel tank. A connecting pipe is fixedly installed on the side of the fuel delivery structure. A fuel mass flow meter is fixedly connected to the other end of the connecting pipe. The side of the fuel mass flow meter is fixedly connected to the fuel testing structure through the connecting pipe. A fuel return structure is provided at another corner on the top of the workbench corresponding to the side of the fuel tank. A fuel extraction structure is provided on the top of the fuel tank corresponding to the fuel return side.

[0010] Preferably, the fuel tank has an inlet hole near the corner on one side of the top, and a fuel tank cap is fixedly installed on the inlet hole on the top of the fuel tank. A fuel level detector is fixedly installed on the side of the fuel tank corresponding to the fuel tank cap near the bottom, and a detector indicator light is fixedly installed on the side of the fuel level detector.

[0011] Preferably, the fuel delivery structure includes a fuel pump, a flow regulating valve, and a flow regulating handle. The fuel pump is fixedly installed on the top of the fuel tank on the other side corresponding to the fuel tank cap. The fuel pump is L-shaped. The other side of the fuel pump is fixedly connected to the flow regulating valve through a connecting pipe. The flow regulating handle is rotatably installed on the top of the flow regulating valve. The bottom two sides of the flow regulating handle are connected to the inner wall of the flow regulating valve.

[0012] Preferably, the fuel test structure includes a test platform, a fixing plate, and a test workpiece. The test platform is fixedly installed on the top of the workbench on the other side corresponding to the fuel tank. The test platform is table-shaped. A set of parallel and vertical fixing plates are fixedly installed on both sides of the top of the test platform. The test workpiece is fixedly connected between the inner sidewalls of the two sides of the fixing plates.

[0013] Preferably, the fuel return structure includes a return pipe, a return box, one end of the return pipe being fixedly connected to the outer side of the fixed plate on one side, and the return pipe passing through the fixed plate and being fixedly connected to the test workpiece. The other end of the return pipe is fixedly connected to the side of the return box. The bottom of the return box is fixedly installed on the top of the workbench on the side corresponding to the fuel tank. A filter screen is fixedly installed in the center of the inside of the return box.

[0014] Preferably, the fuel extraction structure includes a fuel extraction pipe, an extraction pump, and a fuel inlet pipe. The fuel extraction pipe is fixedly installed on the top of the return box on the side corresponding to the fuel tank. The bottom of the fuel extraction pipe enters the side of the filter screen inside the return box. The other end of the fuel extraction pipe is fixedly connected to the extraction pump. The other side of the extraction pump is fixedly connected to the fuel inlet pipe. The other end of the fuel inlet pipe is fixedly connected to the top of the fuel tank, and the fuel inlet pipe passes through the top of the fuel tank and enters the interior of the fuel tank.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a high-pressure fuel testing device, which has the following beneficial effects:

[0017] 1. This high-pressure fuel testing equipment uses advanced precision instrument components such as pressure sensors, flow sensors, and data acquisition and control systems, which can achieve high-precision measurement and monitoring of key parameters such as high-pressure fuel pressure and flow rate, providing reliable data support for accurately evaluating fuel system performance.

[0018] 2. This high-pressure fuel testing equipment can accurately simulate various dynamic operating conditions of a high-pressure fuel system in actual operation, such as the fuel injection process under different pressure, temperature, and flow conditions. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the fuel test structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the fuel extraction structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the fuel recirculation structure of this utility model.

[0023] In the diagram: 1. Workbench; 2. Support legs; 3. Fuel tank; 4. Fuel tank cap; 5. Fuel level detector; 6. Detector indicator light; 7. Fuel pump; 8. Flow control valve; 9. Flow control handle; 10. Connecting pipe; 11. Fuel mass flow meter; 12. Test platform; 13. Fixing plate; 14. Test workpiece; 15. Return pipe; 16. Return box; 17. Fuel extraction pipe; 18. Extraction pump; 19. Fuel inlet pipe. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-4 A high-pressure fuel oil testing device includes a workbench 1 and support legs 2. Two sets of parallel support legs 2 are fixedly installed on the bottom of the workbench 1, and rubber anti-slip pads are fixedly installed on the bottom of each support leg 2. A fuel tank 3 is fixedly installed at the corner of one side of the top of the workbench 1. A fuel delivery structure is fixedly installed on one side of the top of the fuel tank 3. A connecting pipe 10 is fixedly installed on the side of the fuel delivery structure. A fuel mass flow meter 11 is fixedly connected to the other end of the connecting pipe 10. The side of the fuel mass flow meter 11 is fixedly connected to the fuel testing structure through the connecting pipe 10. A fuel return structure is provided at the other corner of the top of the workbench 1 corresponding to one side of the fuel tank 3. A fuel extraction structure is provided at the top of the fuel tank 3 corresponding to the fuel return side.

[0026] Furthermore, a fuel inlet is provided on one side of the top of the fuel tank 3 near the corner. A fuel tank cap 4 is fixedly installed on the fuel inlet at the top of the fuel tank 3. A fuel level detector 5 is fixedly installed on the side of the fuel tank 3 corresponding to the fuel tank cap 4 near the bottom. A detector indicator light 6 is fixedly installed on the side of the fuel level detector 5. Fuel is stored in the fuel tank 3, and the fuel inlet at the top facilitates the addition of fuel. The fuel tank cap 4 ensures airtightness. The fuel level detector 5 can monitor the fuel level in real time, and the detector indicator light 6 displays the fuel level status.

[0027] Furthermore, the fuel delivery structure includes a fuel pump 7, a flow regulating valve 8, and a flow regulating handle 9. The fuel pump 7 is fixedly installed on the top of the fuel tank 3 on the other side corresponding to the fuel tank cap 4. The fuel pump 7 is L-shaped. The other side of the fuel pump 7 is fixedly connected to the flow regulating valve 8 through a connecting pipe 10. The flow regulating handle 9 is rotatably installed on the top of the flow regulating valve 8. The bottom two sides of the flow regulating handle 9 are connected to the inner wall of the flow regulating valve 8. After the fuel pump 7 is started, fuel is drawn from the fuel tank 3. The fuel flows through the connecting pipe 10 to the flow regulating valve 8. By rotating the flow regulating handle 9, the opening of the flow regulating valve 8 can be adjusted, thereby accurately controlling the fuel flow. The adjusted fuel continues to flow through the connecting pipe 10 to the fuel mass flow meter 11. The fuel mass flow meter 11 accurately measures the mass flow of the fuel and transmits the data to the relevant control system.

[0028] Furthermore, the fuel test structure includes a test platform 12, a fixing plate 13, and a test workpiece 14. The test platform 12 is fixedly installed on the top of the workbench 1 on the other side corresponding to the fuel tank 3. The test platform 12 is table-shaped. A set of parallel and vertical fixing plates 13 are fixedly installed on both sides of the top of the test platform 12. The test workpiece 14 is fixedly connected between the inner sidewalls facing each other on both sides of the fixing plates 13. The measured fuel enters the fuel test structure through the connecting pipe 10. In the fuel test structure, the test workpiece 14 is installed between the fixing plates 13. The fixing plates 13 are fixed on the test platform 12. Various simulation experiments are conducted on the fuel here, such as simulating the fuel injection process under different pressure, temperature, and flow conditions, to test the performance of the test workpiece 14.

[0029] Furthermore, the fuel return structure includes a return pipe 15, a return box 16, one end of the return pipe 15 is fixedly connected to the outer side of a fixing plate 13, and the return pipe 15 passes through the fixing plate 13 and is fixedly connected to the test workpiece 14. The other end of the return pipe 15 is fixedly connected to the side of the return box 16. The bottom of the return box 16 is fixedly installed on the top of the workbench 1, corresponding to the side of the fuel tank 3. A filter screen is fixedly installed in the center of the return box 16. After the experiment is completed, the fuel flows into the return box 16 through the return pipe 15. One end of the return pipe 15 is connected to the test workpiece 14 and passes through the fixing plate 13 to ensure smooth fuel return. The bottom of the return box 16 is installed on the workbench 1, and the filter screen in the center of the interior can filter impurities in the returned fuel.

[0030] Furthermore, the fuel extraction structure includes a fuel extraction pipe 17, an extraction pump 18, and a fuel inlet pipe 19. The fuel extraction pipe 17 is fixedly installed on the top of the return box 16 on the side corresponding to the fuel tank 3. The bottom of the fuel extraction pipe 17 enters the filter screen inside the return box 16. The other end of the fuel extraction pipe 17 is fixedly connected to the extraction pump 18. The other side of the extraction pump 18 is fixedly connected to the fuel inlet pipe 19. The other end of the fuel inlet pipe 19 is fixedly connected to the top of the fuel tank 3, and the fuel inlet pipe 19 passes through the top of the fuel tank 3 and enters the interior of the fuel tank 3. When the extraction pump 18 operates, it extracts fuel from the return box 16 through the fuel extraction pipe 17 and sends the fuel back to the fuel tank 3 through the fuel inlet pipe 19, realizing the recycling of fuel and ensuring the continuous operation of the experiment.

[0031] Working Principle: Fuel is stored in fuel tank 3, with an inlet at the top for easy refueling. Fuel tank cap 4 ensures a tight seal. Fuel level sensor 5 monitors the fuel level in real time, and indicator light 6 displays the level status. After the fuel pump 7 starts, fuel is drawn from fuel tank 3 and flows through connecting pipe 10 to flow regulating valve 8. The opening of flow regulating valve 8 can be adjusted by rotating flow regulating handle 9, thereby precisely controlling the fuel flow. The adjusted fuel continues to flow through connecting pipe 10 to fuel mass flow meter 11. Fuel mass flow meter 11 accurately measures the mass flow of fuel and transmits the data to the relevant control system. The measured fuel then enters the fuel test structure through connecting pipe 10. In the fuel test structure, the test workpiece... 14 is installed between fixed plates 13, which are fixed to the test platform 12. Various simulation experiments are conducted on the fuel here, such as simulating the fuel injection process under different pressure, temperature and flow conditions, to test the performance of the test workpiece 14. After the experiment, the fuel flows into the return box 16 through the return pipe 15. One end of the return pipe 15 is connected to the test workpiece 14 and passes through the fixed plate 13 to ensure smooth return of the fuel. The bottom of the return box 16 is installed on the workbench 1. The filter screen in the center of the box can filter impurities in the returned fuel. The extraction pump 18 works to extract fuel from the return box 16 through the fuel extraction pipe 17 and send the fuel back to the fuel tank 3 through the fuel inlet pipe 19 to realize the recycling of fuel and ensure the continuous operation of the experiment.

[0032] Although embodiments of the present 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 of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-pressure fuel oil testing device, comprising a workbench (1) and support legs (2), characterized in that: Two sets of parallel support legs (2) are fixedly installed at the bottom of the workbench (1). Rubber anti-slip pads are fixedly installed at the bottom of each support leg (2). A fuel tank (3) is fixedly installed at the corner of the top side of the workbench (1). A fuel delivery structure is fixedly installed on the top side of the fuel tank (3). A connecting pipe (10) is fixedly installed on the side of the fuel delivery structure. A fuel mass flow meter (11) is fixedly connected to the other end of the connecting pipe (10). The side of the fuel mass flow meter (11) is fixedly connected to the fuel test structure through the connecting pipe (10). A fuel return structure is provided at the other corner of the top of the workbench (1) corresponding to the side of the fuel tank (3). A fuel extraction structure is provided at the top of the fuel tank (3) corresponding to the fuel return side.

2. The high-pressure fuel oil testing equipment according to claim 1, characterized in that: The fuel tank (3) has an oil inlet hole on one side of the top near the corner. A fuel tank cover (4) is fixedly installed on the oil inlet hole at the top of the fuel tank (3). A fuel level detector (5) is fixedly installed on the side of the fuel tank (3) corresponding to the fuel tank cover (4) near the bottom. A detector indicator light (6) is fixedly installed on the side of the fuel level detector (5).

3. The high-pressure fuel oil testing equipment according to claim 2, characterized in that: The fuel delivery structure includes a fuel pump (7), a flow regulating valve (8), and a flow regulating handle (9). The fuel pump (7) is fixedly installed on the top of the fuel tank (3) on the other side corresponding to the fuel tank cap (4). The fuel pump (7) is L-shaped. The other side of the fuel pump (7) is fixedly connected to the flow regulating valve (8) through a connecting pipe (10). The flow regulating handle (9) is rotatably installed on the top of the flow regulating valve (8). The bottom sides of the flow regulating handle (9) are connected to the inner wall of the flow regulating valve (8).

4. The high-pressure fuel oil testing equipment according to claim 2, characterized in that: The fuel test structure includes a test platform (12), a fixing plate (13), and a test workpiece (14). The test platform (12) is fixedly installed on the top of the workbench (1) on the other side corresponding to the fuel tank (3). The test platform (12) is table-shaped. A set of parallel and vertical fixing plates (13) are fixedly installed on both sides of the top of the test platform (12). The test workpiece (14) is fixedly connected between the inner sidewalls facing each other on both sides of the fixing plate (13).

5. The high-pressure fuel oil testing equipment according to claim 4, characterized in that: The fuel return structure includes a return pipe (15) and a return box (16). One end of the return pipe (15) is fixedly connected to the outer side of the fixing plate (13) on one side, and the return pipe (15) passes through the fixing plate (13) and is fixedly connected to the test workpiece (14). The other end of the return pipe (15) is fixedly connected to the side of the return box (16). The bottom of the return box (16) is fixedly installed on the top of the workbench (1) on the side corresponding to the fuel tank (3). A filter screen is fixedly installed in the center of the return box (16).

6. The high-pressure fuel oil testing equipment according to claim 2, characterized in that: The fuel extraction structure includes a fuel extraction pipe (17), an extraction pump (18), and a fuel inlet pipe (19). The fuel extraction pipe (17) is fixedly installed on the top of the return box (16) on the side corresponding to the fuel tank (3). The bottom of the fuel extraction pipe (17) enters the side of the filter screen inside the return box (16). The other end of the fuel extraction pipe (17) is fixedly connected to the extraction pump (18). The other side of the extraction pump (18) is fixedly connected to the fuel inlet pipe (19). The other end of the fuel inlet pipe (19) is fixedly connected to the top of the fuel tank (3), and the fuel inlet pipe (19) passes through the top of the fuel tank (3) and enters the interior of the fuel tank (3).

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