Performance testing device for dual turbocharged engine intake system and testing method thereof

Abstract

The application relates to a performance testing device for a double-turbocharged engine air intake system, which is used for testing the performance of a double-turbocharged engine air intake system and comprises an air inlet pipeline unit connected with an air inlet end of the tested air intake system, a first air outlet pipeline unit and a second air outlet pipeline unit connected with air outlet ends of the tested air intake system, the air inlet pipeline unit is used for air inlet, the first air outlet pipeline unit and the second air outlet pipeline unit are used for air outlet, and the first air outlet pipeline unit and the second air outlet pipeline unit are respectively provided with a pressure gauge, an absolute filter assembly, a flowmeter, a flow controller and a flow fan. The device can simultaneously measure the system pressure values of the double air inlet pipelines, more accurately reflects the performance of the system in the actual situation, provides more real simulation test, and can more accurately provide reliable data support for actual design.

Description

Technical Field

[0001] This invention relates to a testing device, specifically to a performance testing device and method for a twin-turbocharged engine intake system. Background Technology

[0002] Twin-turbocharging technology improves engine power while mitigating turbo lag. With the rapid development of the automotive industry, more and more automakers are adopting twin-turbocharging technology for models requiring high power output. This has led to the development of dual-exit intake systems.

[0003] However, current air filter test benches are mainly designed for single-outlet intake systems and cannot meet the testing performance requirements of twin-turbocharged engine intake systems. Summary of the Invention

[0004] The purpose of this invention is to provide a testing device and method for evaluating the performance of a twin-turbocharged engine intake system in order to solve the above-mentioned problems. This device can realize the performance evaluation of a dual-pipe intake system. By simultaneously testing the pressure of the two intake pipes at the rated flow rate, the static pressure value and pressure loss of the intake system can be evaluated. Furthermore, by performing an ash addition test on the intake system under this device, the aging condition that is more in line with actual conditions can be obtained.

[0005] The objective of this invention is achieved through the following technical solution:

[0006] A performance testing device for a twin-turbocharged engine intake system is provided for testing the performance of the twin-turbocharged engine intake system. It includes an intake port pipe unit connected to the intake end of the intake system under test, a first outlet pipe unit and a second outlet pipe unit connected to the outlet end of the intake system under test. The intake port pipe unit is used to introduce air, and the first and second outlet pipe units are used to discharge air. Each of the first and second outlet pipe units is equipped with a pressure gauge, an absolute filter assembly, a flow meter, a flow controller, and a flow fan.

[0007] Furthermore, the first air outlet pipeline unit includes a first system air outlet pressure measuring pipe, on which a first pressure gauge, a first absolute filter component, a first flow meter, and a first flow controller are sequentially arranged along the air outlet direction.

[0008] Furthermore, the first flow controller is connected to the first air outlet pipe, and the first air outlet pipe is equipped with a first flow fan.

[0009] Furthermore, the second outlet pipeline unit includes a second system outlet pressure measuring pipe, on which a second pressure gauge, a second absolute filter assembly, a second flow meter, and a second flow controller are sequentially arranged along the outlet direction.

[0010] Furthermore, the second flow controller is connected to the second air outlet pipe, and the second air outlet pipe is equipped with a second flow fan.

[0011] Furthermore, the air inlet pipeline unit includes an air inlet measuring tube for introducing air, and a third pressure gauge is provided on the air inlet measuring tube.

[0012] Furthermore, the flow controller is connected to an automatic control program to automatically adjust the flow rate of the flow controller.

[0013] Furthermore, the absolute filter assembly is a filtration device equipped with a filter element, used for ash addition testing.

[0014] A method for testing the performance of a twin-turbocharged engine intake system, using the aforementioned testing apparatus, includes the following steps:

[0015] (1) Connect and install the object to be tested onto the testing device;

[0016] (2) Set the test parameters, input the required flow rate value, input the absolute filter component weight and the area of ​​the filter element to be tested;

[0017] (3) Start the device to ensure that the equipment is running normally and the flow rate reading is stable. Record the pressure gauge reading when the flow rate reaches the required value.

[0018] (4) Calculate the corresponding resistance value of the tested component according to the pressure values ​​of the inlet pressure test tube and the outlet pressure test tube, in accordance with the ISO5011 or the test standard of the OEM.

[0019] (5) Start the air filter test bench ash addition equipment, adjust the ash according to the rated flow rate, and start the ash addition step after the ash adjustment is completed. Stop adding ash when the pressure rises to a certain value as required. The system automatically reads the ash addition weight, re-weighs the absolute filter element weight, and calculates the efficiency and its ash holding capacity based on the ash addition weight and the absolute filter element weight increase.

[0020] The device of this invention can evaluate the performance of a dual-pipe air intake system. It evaluates the static pressure and pressure loss of the air intake system by simultaneously testing the pressure of the two air intake pipes at the rated flow rate. Furthermore, by performing an ash addition test on the air intake system under this device, the aging condition can be obtained in a more realistic manner.

[0021] Compared with the prior art, the present invention has the following advantages:

[0022] 1. This device can simultaneously measure the system pressure value of dual air intake pipes, which more closely reflects the actual situation and provides a more realistic simulation test, thus providing more accurate and reliable data support for actual design.

[0023] 2. This testing device is constructed from commonly used laboratory parts, significantly reducing testing costs. It also offers greater operability, whereas existing air filter testing systems can only provide a single flow rate, increasing testing limitations.

[0024] 3. This testing method is easy to operate. It can run automatically by inputting the set parameters, saving manpower. The real-time test data output by the test program can better guide the system design. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the measuring device of the present invention. Detailed Implementation

[0026] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0027] like Figure 1 A performance testing device for a twin-turbocharged engine intake system is provided for testing the intake system 3 of a twin-turbocharged engine. The device includes an intake port pipe unit connected to the intake end of the intake system 3, a first outlet pipe unit and a second outlet pipe unit connected to the outlet end of the intake system 3. The intake port pipe unit is used to introduce air, and the first outlet pipe unit and the second outlet pipe unit are used to discharge air. Each of the first outlet pipe unit and the second outlet pipe unit is equipped with a pressure gauge, an absolute filter assembly, a flow meter, a flow controller and a flow fan.

[0028] The first outlet pipeline unit includes a first system outlet pressure measuring pipe 5. A first pressure gauge 4, a first absolute filter assembly 6, a first flow meter 7 and a first flow controller 8 are sequentially arranged on the first system outlet pressure measuring pipe 5 along the outlet direction. The first flow controller 8 is connected to the first outlet pipe 9. A first flow fan 10 is provided on the first outlet pipe 9.

[0029] The second air outlet pipeline unit includes a second system air outlet pressure measuring pipe 16. A second pressure gauge 17, a second absolute filter component 15, a second flow meter 14 and a second flow controller 13 are sequentially arranged on the second system air outlet pressure measuring pipe 16 along the air outlet direction. The second flow controller 13 is connected to the second air outlet pipe 12, and a second flow fan 11 is provided on the second air outlet pipe 12.

[0030] The air inlet piping unit includes an air inlet measuring tube 1 for introducing air, and a third pressure gauge 2 is provided on the air inlet measuring tube 1.

[0031] The flow controller is connected to an automatic control program to automatically adjust the flow rate. The absolute filter assembly is a filtration device with a filter element, used for ash addition testing.

[0032] This device can evaluate the performance of a dual-pipe air intake system. By simultaneously testing the pressure of the two air intake pipes at the rated flow rate, it can assess the static pressure and pressure loss of the air intake system. Furthermore, by conducting an ash addition test on the air intake system using this device, it can obtain aging results that are more consistent with actual conditions.

[0033] The testing method steps are as follows:

[0034] (1) Press Figure 1 Connections: Two flow fans are connected to flow controllers C1 and C2 respectively via pipes. Flow meters Q1 and Q2 are connected to each flow controller. Adjust the flow rates of flow controllers C1 and C2 until the readings of flow meters Q1 and Q2 reach the required values. Absolute filters F1 and F2 are connected to the downstream side of the flow and pressure gauges respectively. They are connected to the two outlets of the tested air intake system via the system outlet pressure test pipe. The inlet of the tested air intake system is connected to the atmosphere via the inlet pressure test pipe. All connections must be sealed and leak-free. The flow controllers can be automatically controlled by the system program, and all pressure values ​​can be recorded in real time.

[0035] (2) Test parameter settings: Input the required flow rates Q1 and Q2 as required, and input other relevant test parameters, such as absolute filter element weight and the area of ​​the filter element being tested.

[0036] (3) Start the test device, ensure that the equipment is running normally and the flow reading is stable, and record the readings of P1, P2 and P3 when Q1 and Q2 reach the required values.

[0037] (4) According to ISO 5011 or other OEM testing standards, the corresponding resistance value of the tested component can be calculated based on the pressure values ​​of the inlet pressure test tube and the outlet pressure test tube.

[0038] (5) Start the air filter test bench ash-adding equipment and adjust the ash according to the rated flow rate. After the ash adjustment is completed, start the ash-adding process. Stop adding ash when the pressure rises to a certain value as required by the customer. The system will automatically read the weight of the added ash and re-weigh the absolute weight of the filter element.

[0039] (6) According to ISO 5011 or other OEM testing standards, the efficiency and ash holding capacity can be calculated based on the ash weight and absolute filter element weight gain.

[0040] The structure of the aforementioned inlet and outlet pressure test tubes and the location of the pressure test points must comply with the requirements of ISO 5011 or other OEM testing standards. The aforementioned absolute filters must meet the requirements of ISO 5011.

[0041] The specific working principle is as follows: the intake system 3 under test is configured according to... Figure 1 The components are connected as shown. The values ​​of Q1 and Q2 are set. The automatic control program will automatically adjust the flow of the flow controllers C1 and C2 so that the readings of the flow meters Q1 and Q2 reach the required values. The readings of P1, P2 and P3 when Q1 and Q2 reach the required values ​​are recorded to evaluate the static pressure and pressure loss of the system. If it is a dust addition test, the data of absolute filters F1 and F2 before and after the test need to be recorded to calculate the efficiency and dust holding capacity of the tested system. By setting the flow rate of the dual outlets, the actual vehicle operation conditions are more closely simulated, and reliable data support can be provided for actual design more accurately.

[0042] Example 1

[0043] Flow resistance test of a dual-pipe air intake system.

[0044] Conditions: Test flow rate Q1 = 8.0 m³ / min, Q2 = 8.0 m³ / min, 23℃ ± 5℃, (55 ± 15)% RH;

[0045] Requirement: Measure the flow resistance under the given flow rate conditions;

[0046] Objective: To determine whether the flow resistance of the intake system meets the customer's requirements based on the specified constraints;

[0047] The case study components include Figure 1 The components include: inlet and outlet measuring tubes, the dual inlet air intake system under test, pressure gauge, absolute filter, flow fan, connecting pipe, flow meter and flow controller, etc.

[0048] Method: Test steps 1-3 according to the plan;

[0049] Conclusion: This method offers convenient flow rate adjustment, accurate readings, good repeatability, complete result recording, good traceability, and more accurately reflects the actual vehicle operating conditions.

[0050] Example 2

[0051] Efficiency and dust holding capacity test of a dual-pipe air intake system for a certain vehicle model.

[0052] Conditions: Test flow rate Q1 = 8.0 m3 / min, Q2 = 8.0 m3 / min, 23℃ ± 5℃, (55 ± 15)%RH △P = +20 Pa;

[0053] Requirements: Measure the efficiency and dust holding capacity under the given flow rate conditions;

[0054] Objective: To determine whether the efficiency and dust holding capacity of the dual-pipe air intake system meet customer requirements based on the specified requirements, thereby determining whether the lifespan of the tested component meets the requirements.

[0055] The case study components include Figure 1The components include: inlet and outlet measuring tubes, the dual inlet air intake system under test, pressure gauge, absolute filter, flow fan, connecting pipe, flow meter and flow controller, etc.

[0056] Method: Follow the test steps in the plan (step 4 can be skipped);

[0057] Conclusion: This method offers convenient flow rate adjustment, accurate readings, good repeatability, complete result recording, good traceability, and more accurately reflects the actual vehicle operating conditions.

[0058] The above description of the embodiments is provided to enable those skilled in the art to understand and use the invention. It will be apparent to those skilled in the art that various modifications can be made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present invention is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the invention should be within the protection scope of the present invention.

Claims

1. A method for testing the performance of a twin-turbocharged engine intake system, characterized in that, The test apparatus for testing the performance of the intake system of a twin-turbocharged engine includes an intake port pipe unit connected to the intake end of the intake system under test, a first outlet pipe unit and a second outlet pipe unit connected to the outlet end of the intake system under test. The intake port pipe unit is used to introduce air, and the first outlet pipe unit and the second outlet pipe unit are used to discharge air. Each of the first outlet pipe unit and the second outlet pipe unit is equipped with a pressure gauge, an absolute filter assembly, a flow meter, a flow controller and a flow fan. The testing method uses the aforementioned testing device and includes the following steps: (1) Connect and install the object to be tested onto the testing device; (2) Set the test parameters, input the required flow rate value, input the absolute filter component weight and the area of ​​the filter element to be tested; (3) Start the device, ensure the equipment is running normally and the flow rate reading is stable, and record the pressure gauge reading when the flow rate reaches the required value; (4) Calculate the corresponding resistance value of the tested component according to the pressure values ​​of the inlet and outlet pressure measuring tubes, in accordance with ISO5011 or the test standards of the OEM. (5) Start the air filter test bench ash addition equipment, adjust the ash according to the rated flow rate, and start the ash addition step after the ash adjustment is completed. Stop adding ash when the pressure rises to a certain value as required. The system automatically reads the ash addition weight, re-weighs the absolute filter element weight, and calculates the efficiency and its ash holding capacity based on the ash addition weight and the absolute filter element weight increase.

2. The method for testing the performance of a twin-turbocharged engine intake system according to claim 1, characterized in that, The first air outlet pipeline unit includes a first system air outlet pressure measuring pipe, and a first pressure gauge, a first absolute filter component, a first flow meter and a first flow controller are sequentially arranged on the first system air outlet pressure measuring pipe along the air outlet direction.

3. The method for testing the performance of a twin-turbocharged engine intake system according to claim 2, characterized in that, The first flow controller is connected to the first air outlet pipe, and the first air outlet pipe is equipped with a first flow fan.

4. The method for testing the performance of a twin-turbocharged engine intake system according to claim 1, characterized in that, The second outlet pipeline unit includes a second system outlet pressure measuring pipe, on which a second pressure gauge, a second absolute filter assembly, a second flow meter, and a second flow controller are sequentially arranged along the outlet direction.

5. The method for testing the performance of a twin-turbocharged engine intake system according to claim 4, characterized in that, The second flow controller is connected to the second air outlet pipe, and the second air outlet pipe is equipped with a second flow fan.

6. The method for testing the performance of a twin-turbocharged engine intake system according to claim 1, characterized in that, The air inlet pipeline unit includes an air inlet measuring tube for introducing air, and a third pressure gauge is provided on the air inlet measuring tube.

7. The method for testing the performance of a twin-turbocharged engine intake system according to claim 1, characterized in that, The flow controller is connected to an automatic control program that automatically adjusts the flow rate of the flow controller.

8. The method for testing the performance of a twin-turbocharged engine intake system according to claim 1, characterized in that, The absolute filter assembly is a filtration device equipped with a filter element, used for ash addition testing.

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