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GB/T 41770-2022: Test method for liquid fuel injection using backlit imaging
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 41770-2022 | English | 339 |
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Test method for liquid fuel injection using backlit imaging
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GB/T 41770-2022
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Basic data | Standard ID | GB/T 41770-2022 (GB/T41770-2022) | | Description (Translated English) | Test method for liquid fuel injection using backlit imaging | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | F04 | | Classification of International Standard | 27.010 | | Word Count Estimation | 18,155 | | Date of Issue | 2022-10-14 | | Date of Implementation | 2022-10-12 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 41770-2022: Test method for liquid fuel injection using backlit imaging---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Test method for liquid fuel injection using backlit imaging
ICS 27.010
CCSF04
National Standards of People's Republic of China
Liquid fuel injection characteristics based on backlight imaging technology
testing method
Published on 2022-10-12
2022-10-12 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration
directory
Preface I
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Test equipment 3
4.1 Liquid fuel injection characteristic test system 3
4.2 Test Environment 3
4.3 Fuel injection system 5
4.4 Image acquisition system 5
4.5 Synchronous Control System 5
5 Test Condition 6
5.1 Test environmental conditions 6
5.2 Tank Fuel Temperature 6
5.3 Injector fuel temperature 6
5.4 System Preparation Conditions 6
5.5 Injection control parameters 7
6 Test Step 7
6.1 Arrange and install test equipment 7
6.2 Adjusting the shooting area 7
6.3 Adjust light source, lens and camera parameters 7
6.4 Taking scale images 7
6.5 Checking the synchronization control signal 7
6.6 Camera recording 7
6.7 Test Record 7
6.8 Cleaning Optical Components 7
6.9 Repeat Test 8
7 Data processing 8
7.1 Determination of spray penetration distance and spray cone angle 8
7.2 Image processing 8
7.3 Obtaining spray penetration distance and spray cone angle 9
7.4 Data representation 9
8 Test records9
Appendix A (Informative) Principle of Otsu's Method for Calculating Threshold 11
Appendix B (informative) Fog beam image program processing method 13
Appendix C (Informative) Test Record Format 14
Reference 15
foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents"
drafted.
Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents.
This document is proposed and managed by the National Standardization Technical Committee of Combustion Energy Conservation and Purification (SAC/TC441).
This document was drafted by. Beijing Institute of Technology, Hefei Shunchang Distributed Energy Comprehensive Application Technology Co., Ltd., University of Science and Technology of China,
Tsinghua University, Weichai Power Co., Ltd., Zhejiang University, Hefei Product Quality Supervision and Inspection Institute, Huazhong University of Science and Technology, Shanghai Communications
University, Anhui Institute of Quality and Standardization, Anhui Fengxing New Material Technology Co., Ltd., China Institute of Testing Technology, Southwest Jiaotong University
Science, North China Engine Research Institute, Dongfeng Commercial Vehicle Co., Ltd., Dalian University of Technology, Anhui Special Equipment Inspection Institute, Anhui Guoxingsheng
Physical Chemistry Co., Ltd., BYD Automobile Industry Co., Ltd., FAW Jiefang Automobile Co., Ltd., Anhui Quanchai Power Co., Ltd., Bengbu
Tianyi Boiler Manufacturing Co., Ltd., National Coal Chemical Product Quality Supervision and Inspection Center (Anhui), System Engineer of the Academy of Military Sciences of the Chinese People's Liberation Army
Cheng Research Institute, Nanjing Golden Hammer Machinery Equipment Co., Ltd., Suzhou Anhongtai New Materials Co., Ltd.
The main drafters of this document. He Xu, Lin Qizhao, Wu Yue, Ma Xiao, Li Yanfei, Li Zhijie, Ye Taohong, Gu Chaoguang, Cheng Leming, Ling Fei, Jin Shiping,
He Liqun, Zhou Yuegui, Zhang Wenqiu, Chen Weixin, Cao Jiangping, Zhu Minhao, Li Yaozong, Yin Yong, Qiao Xinqi, Su Qingyun, Yang Biying, Ding Shengbin, Jiang Wei,
Ge Dazhong, Lu Guoxiang, Yu Liu, Wang Shaoyou, Yao Jie, Liu He, Wang Jinyong, Liu Kehua, Wang Huibin, Qin Zhengbing.
Liquid fuel injection characteristics based on backlight imaging technology
testing method
1 Scope
This document specifies the test equipment, test conditions, and test procedures for liquid fuel injection characteristics testing using backlight imaging technology.
The requirements for data processing and test recording were confirmed.
This document applies to injection testing of various liquid fuels.
2 Normative references
The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations
documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to
this document.
GB/T 27418-2017 Evaluation and representation of measurement uncertainty
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
injector
A device that sprays a certain amount of liquid fuel at a higher pressure to disperse it into droplets.
[Source. GB/T 10826.2-2008, 2.1, with modifications]
3.2
injector hole nozzlehole
A hole in the injector head for injecting liquid fuel into the environment.
[Source. GB/T 6809.11-2018, 3.3.101, with modifications]
3.3
Inlet socket fuelinletconnection
The part of the injector body used to install the high-pressure fuel line.
[Source. GB/T 10826.2-2008,7.15]
3.4
Intermittently supplied fuel injection of liquid fuel.
3.5
continuous-flowinjection
Fuel injection with continuous supply of liquid fuel.
[Source. GB/T 6809.11-2018, 3.3.5, with modifications]
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