CN109612737B - Turbocharger acceleration performance testing device and method - Google Patents
Turbocharger acceleration performance testing device and method Download PDFInfo
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- CN109612737B CN109612737B CN201811519556.6A CN201811519556A CN109612737B CN 109612737 B CN109612737 B CN 109612737B CN 201811519556 A CN201811519556 A CN 201811519556A CN 109612737 B CN109612737 B CN 109612737B
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- 230000001133 acceleration Effects 0.000 title claims abstract description 32
- 238000012360 testing method Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims description 6
- 239000000446 fuel Substances 0.000 claims abstract description 27
- 238000002485 combustion reaction Methods 0.000 claims abstract description 12
- 238000011056 performance test Methods 0.000 claims abstract description 12
- 238000011160 research Methods 0.000 claims abstract description 7
- 230000001105 regulatory effect Effects 0.000 claims description 17
- 239000002828 fuel tank Substances 0.000 claims description 4
- 238000010998 test method Methods 0.000 claims description 2
- 230000001052 transient effect Effects 0.000 abstract description 7
- 230000008859 change Effects 0.000 abstract description 3
- 230000004044 response Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/04—Testing internal-combustion engines
- G01M15/042—Testing internal-combustion engines by monitoring a single specific parameter not covered by groups G01M15/06 - G01M15/12
- G01M15/046—Testing internal-combustion engines by monitoring a single specific parameter not covered by groups G01M15/06 - G01M15/12 by monitoring revolutions
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- Chemical & Material Sciences (AREA)
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- Combustion & Propulsion (AREA)
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- General Physics & Mathematics (AREA)
- Supercharger (AREA)
Abstract
The invention provides a turbocharger acceleration performance testing device, which is additionally provided with a device capable of adjusting transient change of fuel entering a combustion chamber on the premise of not changing the adjusting function of a fuel system in the original turbocharger performance test. The test device can realize the acceleration performance test research of the turbocharger, is suitable for superchargers with different specifications, and can ensure the repeatability of test results.
Description
Technical Field
The invention belongs to the technical field of exhaust gas turbocharging, and particularly relates to a turbocharger acceleration performance test device and a measurement method.
Background
The turbocharger is an important part of a power system of a vehicle engine, and the acceleration of the turbocharger is key to influencing the transient response of the engine. The rotational inertia of the rotor of the turbocharger is a determining factor of the acceleration response capability of the turbocharger, so on the premise of not influencing the efficiency and the strength of the turbocharger, the research directions at home and abroad at present concentrate on reducing the rotational inertia of the rotor of the turbocharger and adopting a smaller turbine flow area as much as possible to improve the acceleration performance of the rotor of the turbocharger, and mainly adopt a turbine rotor with low inertia, a ball bearing with small damping and a turbocharger with a variable cross section.
At present, the evaluation method of the acceleration of the supercharger in books related to the supercharger at home and abroad is not explicitly and uniformly discussed, and the related test research is rarely mentioned. Therefore, it is common practice to measure the transient characteristics of the engine to evaluate the transient characteristics of the supercharger, but this method is time-consuming, laborious and troublesome and has many disturbing factors. Therefore, it is important to conduct an acceleration test study of the supercharger and evaluate the acceleration performance from a quantitative point of view.
Disclosure of Invention
In view of this, the present invention is directed to provide a turbocharger acceleration performance testing apparatus, which can accurately obtain the acceleration performance of a turbocharger to judge the transient characteristics thereof, so as to guide the application of new structures and new materials.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a set of device capable of adjusting transient change of fuel entering a combustion chamber is added on the premise of not changing the adjusting function of a fuel system during the performance test of the original turbocharger so as to realize the acceleration performance test of the turbocharger.
The turbocharger acceleration performance testing device comprises a supply adjusting device of a test bed fuel system, wherein the supply adjusting device comprises an oil tank, a fuel pressure pump, an adjusting valve, a combustion chamber, a conveying pipeline, a turbocharger, a parameter measuring instrument and a data acquisition system; and a fuel quantity adjusting branch pipeline is arranged between the fuel tank and the position of the delivery pipeline before entering the combustion chamber, and a switch stop valve and a branch adjusting valve are arranged on the fuel quantity adjusting branch pipeline.
The test method of the turbocharger acceleration performance test device comprises the following steps:
when the acceleration performance test research of the turbocharger is carried out, the opening degree of the regulating valve is ensured to be always kept in the oil supply quantity state under the working condition of the highest stable rotating speed, the switch stop valve is opened at the moment, and then the rotating speed of the turbocharger is slowly reduced from the highest stable rotating speed to the lowest stable rotating speed by regulating the opening degree of the branch regulating valve;
after the previous step is completed, the supply in the test pipeline is in the maximum state, the switch stop valve is closed suddenly at the moment, the rotating speed of the turbocharger is accelerated from the lowest stable rotating speed to the highest stable rotating speed under the drive of the maximum supply energy, the acceleration time is calculated through the data acquired by the data acquisition system, and the acceleration performance is analyzed.
Compared with the prior art, the invention has the following advantages:
(1) the device has simple structure and is easy to realize;
(2) the device and the method can realize the acceleration performance test research of the turbocharger, are suitable for superchargers with different specifications, and can ensure the repeatability of test results.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic diagram of an acceleration performance testing apparatus according to an embodiment of the present invention.
Description of reference numerals:
the fuel tank 1, the fuel pressure pump 2, the regulating valve 3, the combustion chamber 4, the on-off stop valve 5, the branch regulating valve 6, the conveying pipeline 7 and the turbocharger 8.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
The device for testing the acceleration performance of the turbocharger of the embodiment is characterized in that an existing test bed fuel system is modified, namely a device capable of adjusting transient change of fuel entering a combustion chamber 4 is added on a supply adjusting device of the original test bed fuel system, so that the acceleration performance of the turbocharger 8 is tested.
Specifically, as shown in fig. 1, the supply adjusting device includes an oil tank 1, a fuel pressure pump 2, an adjusting valve 3, a combustion chamber 4, a conveying pipeline 7, a turbocharger 8, a parameter measuring instrument and a data collecting system, one end of the fuel pressure pump 2 is connected with the oil tank 1, the other end of the fuel pressure pump is communicated with the middle part of the conveying pipeline 7, one end of the conveying pipeline 7 is connected with the oil tank 1 through the adjusting valve 3, the other end of the conveying pipeline is communicated with the combustion chamber 4, the other end of the combustion chamber 4 is connected with the turbocharger 8, and the data collecting system collects data of the parameter measuring instrument and the;
a fuel quantity control branch line, in which a switching shut-off valve 5 and a branch control valve 6 are arranged, is added between the fuel tank 1 and a position on the delivery line 7 before entering the combustion chamber 4.
The fuel flow or the stop of the fuel in the fuel quantity control branch line can be controlled by opening and closing the shut-off valve 5, and a branch regulating valve 6 is provided in order to regulate the fuel quantity in the fuel quantity control branch line, and the function realized by the regulating valve 3 can be achieved by the branch regulating valve 6.
The measuring method for the acceleration test of the turbocharger 8 comprises the following testing steps:
the first step is as follows: closing each stop valve in the test bed fuel system, and adjusting the opening of each regulating valve to zero;
the second step is that: checking each instrument in the test bed fuel system to ensure normal operation;
the third step: and (5) starting the test system to ensure that the switch stop valve 5 and the branch regulating valve 6 are in a completely closed state. Starting a test system by ignition, switching the system to be tested to a self-circulation state after the system to be tested is stable, and slowly increasing the opening degree of the regulating valve 3 to enable the rotating speed of the turbocharger 8 to be slowly increased to the highest stable rotating speed after the rotating speed of the turbocharger 8 is stable under the lowest working condition;
the fourth step: when the acceleration performance test research of the turbocharger 8 is needed, the opening degree of the regulating valve 3 is ensured to be always kept in the oil supply quantity state under the working condition of the highest stable rotating speed, the on-off stop valve 5 is opened at the moment, and then the rotating speed of the turbocharger 8 is slowly reduced from the highest stable rotating speed to the lowest stable rotating speed by regulating the opening degree of the branch regulating valve 6.
The fifth step: after the first four steps are completed, the supply in the pipeline is in the maximum state in the performance test, the switch stop valve 5 is suddenly closed at the moment, the turbocharger 8 is driven by the maximum supply energy to rotate at a speed which can be accelerated from the lowest stable rotating speed to the highest stable rotating speed, the acceleration time is calculated through the data acquired by the data acquisition system, and the acceleration performance is analyzed.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (2)
1. The turbocharger acceleration performance testing device comprises a supply adjusting device of a test bed fuel system, wherein the supply adjusting device comprises an oil tank, a fuel pressure pump, an adjusting valve, a combustion chamber, a conveying pipeline, a turbocharger, a parameter measuring instrument and a data acquisition system; the method is characterized in that:
and a fuel quantity adjusting branch pipeline is arranged between the fuel tank and the position of the delivery pipeline before entering the combustion chamber, and a switch stop valve and a branch adjusting valve are arranged on the fuel quantity adjusting branch pipeline.
2. The turbocharger acceleration performance test apparatus according to claim 1, characterized in that: the test method of the test device comprises the following steps:
when the acceleration performance test research of the turbocharger is carried out, the opening degree of the regulating valve is ensured to be always kept in the oil supply quantity state under the working condition of the highest stable rotating speed, the switch stop valve is opened at the moment, and then the rotating speed of the turbocharger is slowly reduced from the highest stable rotating speed to the lowest stable rotating speed by regulating the opening degree of the branch regulating valve;
after the step is finished, the supply in the conveying pipeline is in the maximum state, the switch stop valve is closed suddenly at the moment, the rotating speed of the turbocharger is accelerated from the lowest stable rotating speed to the highest stable rotating speed under the drive of the maximum supply energy, the acceleration time is calculated through the data acquired by the data acquisition system, and the acceleration performance is analyzed.
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| CN201811519556.6A CN109612737B (en) | 2018-12-12 | 2018-12-12 | Turbocharger acceleration performance testing device and method |
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| CN201811519556.6A CN109612737B (en) | 2018-12-12 | 2018-12-12 | Turbocharger acceleration performance testing device and method |
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| CN109612737B true CN109612737B (en) | 2021-05-07 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3166658B2 (en) * | 1997-05-13 | 2001-05-14 | トヨタ自動車株式会社 | Variable nozzle turbocharger abnormality judgment system |
| JP4667346B2 (en) * | 2006-08-25 | 2011-04-13 | 本田技研工業株式会社 | Control device for internal combustion engine |
| CN101532910B (en) * | 2009-04-16 | 2011-05-25 | 北京理工大学 | Turbocharger acceleration performance evaluation test method and test device |
| CN101995337A (en) * | 2010-09-18 | 2011-03-30 | 中国兵器工业集团第七○研究所 | System and method for testing acceleration performance of turbocharger |
| CN203337378U (en) * | 2013-07-31 | 2013-12-11 | 博格华纳汽车零部件(宁波)有限公司 | Turbocharger on-line detection device |
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