CN219956901U - Engine bench test system based on gas mixing system - Google Patents
Engine bench test system based on gas mixing system Download PDFInfo
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- CN219956901U CN219956901U CN202321489349.7U CN202321489349U CN219956901U CN 219956901 U CN219956901 U CN 219956901U CN 202321489349 U CN202321489349 U CN 202321489349U CN 219956901 U CN219956901 U CN 219956901U
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- 238000012360 testing method Methods 0.000 title claims abstract description 31
- 230000001133 acceleration Effects 0.000 claims abstract description 15
- 239000000523 sample Substances 0.000 claims abstract description 15
- 238000002485 combustion reaction Methods 0.000 claims abstract description 13
- 238000012545 processing Methods 0.000 claims abstract description 12
- 239000003550 marker Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000009838 combustion analysis Methods 0.000 claims 2
- 239000007789 gas Substances 0.000 abstract description 53
- 238000011056 performance test Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
An engine bench test system based on a gas mixing system belongs to the technical field of engines. Not only can the performance test of multiple mixed gases be carried out, but also the knocking data test can be carried out, and the test performance is more comprehensive and accurate. The gas in the gas cylinder is filled by the gas mixing device, the corner mark instrument and the spark plug cylinder pressure sensor transmit signals for the combustion analyzer, the combustion analyzer transmits collected information to the control system, the knocking sensor transmits signals to the signal processing unit, the signal processing unit transmits collected information to the control system, the sound intensity probe and the acceleration sensor respectively collect engine noise and engine vibration acceleration, and transmit signals to the noise vibration tester, and the noise vibration tester transmits information to the control system. The bench test system of the utility model can accurately test the combustion data and the gas emission data of the engine, and can test the knocking data of the engine through the noise vibration tester and the knocking sensor.
Description
Technical Field
The utility model belongs to the technical field of engines, and particularly relates to an engine bench test system based on a gas mixing system.
Background
In the development and upgrading stage of the engine, a large amount of bench test work needs to be carried out, various data tests need to be carried out, the air inlet function of the conventional engine bench test is single, only one or two mixed gases can be provided, the subsequent test of the engine is easy to limit, and in addition, the provision of an engine bench with more comprehensive test performance is a technical problem to be solved urgently by those skilled in the art.
Disclosure of Invention
The utility model aims to provide an engine bench test system based on a gas mixing system, which not only can perform performance test of multiple mixed gases, but also can perform knock data test, and has more comprehensive and accurate test performance.
The technical scheme adopted by the utility model is as follows:
the engine bench test system based on the gas mixing device comprises a gas cylinder, a control system, a signal processing unit, a knocking sensor, an angle indicator, a combustion analyzer, a spark plug cylinder pressure sensor, an acceleration sensor, a sound intensity probe and a noise vibration tester; the gas in the gas cylinder is filled by the gas mixing device, a gas nozzle of the gas cylinder is communicated with a gas inlet channel of an engine cylinder to supply gas for the engine, a measuring probe of the angle marker is arranged on a cavity of the engine cylinder, the angle marker and a pressure sensor of the spark plug cylinder transmit signals to the combustion analyzer, the combustion analyzer transmits collected information to a control system, the knock sensor is arranged on the engine cylinder, the knock sensor transmits signals to a signal processing unit, the signal processing unit transmits collected information to the control system, and the sound intensity probe and the acceleration sensor respectively collect engine noise and engine vibration acceleration and transmit the signals to the noise vibration tester which transmits the information to the control system.
Compared with the prior art, the utility model has the following beneficial effects:
the bench test system of the utility model can accurately test the combustion data and the gas emission data of the engine, and can test the knocking data of the engine through the noise vibration tester and the knocking sensor. The test gas is controlled by the gas mixing device, so that the influence of mixed data of various gases on the engine can be better tested.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of the structure of the gas mixing device of the utility model;
FIG. 3 is a schematic diagram of the principles of the present utility model;
wherein: 1. a gas cylinder; 2. a control system; 3. a signal processing unit; 5. an engine cylinder; 6. a knock sensor; 7. an angle marker instrument; 8. a combustion analyzer; 9. a gas emission detector; 10. a spark plug cylinder pressure sensor; 11. an acceleration sensor; 12. a gas nozzle; 13. an intake valve; 14. a sound intensity probe; 15. a noise vibration tester; 16. a pressure regulator; 17. an electromagnetic valve; 18. a pressure sensor; 19. an air source bottle; 20. a heat exchanger; 21. a filter; 22. a mass flow controller.
Detailed Description
For a better understanding of the objects, structures and functions of the present utility model, reference should be made to the following detailed description of the utility model with reference to the accompanying drawings.
Referring to fig. 1 and 3, the engine bench test system based on the gas mixing device of the utility model comprises a gas cylinder 1, a control system 2, a signal processing unit 3, a knock sensor 6, a corner mark instrument 7, a combustion analyzer 8, a spark plug cylinder pressure sensor 10, an acceleration sensor 11, a sound intensity probe 14 and a noise vibration tester 15; the gas in the gas cylinder 1 is filled by the gas mixing device, the gas nozzle 12 of the gas cylinder 1 is communicated with the gas inlet channel of the engine cylinder 5 to supply gas for the engine, the measuring probe of the angle indicator 7 is arranged on the cavity of the engine cylinder 5 and is used for collecting angle indicator signals of the engine cylinder 5, the spark plug cylinder pressure sensor 10 is arranged at the spark plug of the engine cylinder 5, the angle indicator 7 and the spark plug cylinder pressure sensor 10 transmit signals to the combustion analyzer 8, the combustion analyzer 8 transmits collected information to the control system 2, the knock sensor 6 is arranged on the engine cylinder 5 and is used for collecting knock information of the engine cylinder 5, the knock sensor 6 transmits signals to the signal processing unit 3, the signal processing unit 3 transmits the collected information to the control system 2, the sound intensity probe 14 is arranged close to the engine cylinder 5, the acceleration sensor 11 is arranged on the engine cylinder 5, the sound intensity probe 14 and the acceleration sensor 11 respectively collect engine noise and engine vibration acceleration, and transmit the signals to the noise vibration tester 15, and the noise vibration tester 15 transmits the information to the control system 2.
The combustion analyzer 8 collects pressure signals in the engine cylinder 5 through the spark plug cylinder pressure sensor 10, and simultaneously collects angle mark signals through the angle mark instrument 7, and records the pressure signals in the cylinder according to the pulse of the angle mark. The noise vibration tester 15 collects vibration acceleration and engine noise of the engine cylinder 5 through the acceleration sensor 11 and the sound intensity probe 14. The test effect is more accurate by adopting the mode.
An air probe of a gas emission detector 9 is arranged on the exhaust passage of the engine cylinder 5, and the gas emission detector 9 is used for detecting and analyzing gas emitted by the engine and transmitting information to the control system 2.
The gas transmission pipeline of the gas cylinder 1 is sequentially provided with a pressure sensor 18, an electromagnetic valve 17 and a pressure regulator 16, and the pressure sensor 18, the electromagnetic valve 17 and the pressure regulator 16 are connected with the control system 2. The control system is also used to control the inlet valve 13 of the engine cylinder 5 and the gas nozzle 12 of the gas cylinder 1.
As shown in fig. 2, the air mixing device comprises a plurality of air source bottles 19, a plurality of heat exchangers 20, a plurality of filters 21 and a plurality of mass flow controllers 22; the air outlet end of each air source bottle 19 is respectively and sequentially connected with a corresponding heat exchanger 20, a corresponding filter 21 and a corresponding mass flow controller 22, and the outlet end of each mass flow controller 22 is respectively connected with the air bottle 1.
And electromagnetic valves are arranged on the pipelines of the gas mixing device, and each electromagnetic valve is controlled by a control center of the gas mixing device.
The gas mixing device can not only select the quantity of the mixed gas and accurately mix the components of the gas, but also can flush single gas into the gas cylinder 1, and is more convenient.
The multi-path gas is mixed accurately, and the engine performance test can be performed on an engine bench test system in the gas bottle 1.
The engine bench test system is also provided with a fuel consumption meter and a thermal management system, is connected with an engine cylinder 5, and is provided with a frequency converter and a transformer which are connected with a control system.
It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.
Claims (5)
1. An engine bench test system based on mixing gas device, its characterized in that: the device comprises a gas cylinder (1), a control system (2), a signal processing unit (3), a knock sensor (6), an angle marker (7), a combustion analyzer (8), a spark plug cylinder pressure sensor (10), an acceleration sensor (11), a sound intensity probe (14) and a noise vibration tester (15); the gas in gas cylinder (1) is filled by mixing gas device, gas nozzle (12) and the intake duct intercommunication of engine cylinder (5) of gas cylinder (1), for engine air feed, the measuring probe of angle indicator (7) is installed on the cavity of engine cylinder (5), angle indicator (7) and spark plug jar pressure sensor (10) are combustion analysis appearance (8) transmission signal, combustion analysis appearance (8) are with the information transfer who gathers control system (2), knock sensor (6) are installed on engine cylinder (5), knock sensor (6) are with signal transfer for signal processing unit (3), signal processing unit (3) are with the information transfer who gathers control system (2) again, engine noise and engine vibration acceleration that sound intensity probe (14) and acceleration sensor (11) gathered respectively to give noise vibration tester (15) with the signal transfer, noise vibration tester (15) are with information transfer for control system (2).
2. The air mixing device based engine bench test system of claim 1, wherein: an air probe of a gas emission detector (9) is arranged on an exhaust passage of the engine cylinder (5), and the gas emission detector (9) is used for detecting and analyzing gas emitted by the engine and transmitting information to the control system (2).
3. The air mixing device based engine bench test system of claim 2, wherein: the gas transmission pipeline of the gas cylinder (1) is sequentially provided with a pressure sensor (18), an electromagnetic valve (17) and a pressure regulator (16), and the pressure sensor (18), the electromagnetic valve (17) and the pressure regulator (16) are connected with the control system (2).
4. The air mixing device based engine bench test system of claim 3 wherein: the gas mixing device comprises a plurality of gas source bottles (19), a plurality of heat exchangers (20), a plurality of filters (21) and a plurality of mass flow controllers (22); the air outlet end of each air source bottle (19) is respectively and sequentially connected with a corresponding heat exchanger (20), a filter (21) and a mass flow controller (22), and the outlet end of each mass flow controller (22) is respectively connected with the air bottle (1).
5. The air mixing device based engine bench test system of claim 4, wherein: the control system is also used for controlling an inlet valve (13) of an engine cylinder (5) and a gas nozzle (12) of the gas bottle (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321489349.7U CN219956901U (en) | 2023-06-12 | 2023-06-12 | Engine bench test system based on gas mixing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321489349.7U CN219956901U (en) | 2023-06-12 | 2023-06-12 | Engine bench test system based on gas mixing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219956901U true CN219956901U (en) | 2023-11-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321489349.7U Active CN219956901U (en) | 2023-06-12 | 2023-06-12 | Engine bench test system based on gas mixing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219956901U (en) |
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2023
- 2023-06-12 CN CN202321489349.7U patent/CN219956901U/en active Active
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