GB/T 44723-2024Hydrogen internal combustion engines - General technical specification (English PDF)
氢燃料内燃机 通用技术条件
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
September 29, 2024
Implementation date
April 1, 2025
Scope
GB/T 44723-2024 is the English-translated version of 氢燃料内燃机 通用技术条件.
GB/T 44723-2024 is the Chinese general specification for hydrogen internal combustion engines.
The hydrogen ICE is the pragmatic half of the hydrogen transport case: it burns hydrogen in a modified conventional engine, so it uses the existing manufacturing base and tolerates a fuel purity that would poison a fuel cell, and China is putting it into heavy trucks and off-road machinery.
It also brings problems a diesel does not have: pre-ignition and backfire from hydrogen's very wide flammability range and low ignition energy, hydrogen embrittlement of the components, crankcase hydrogen accumulation, and nitrogen oxides that behave differently from those of any other fuel.
The standard sets the classification and the parameters, the requirements on the engine and its fuel system, on the ignition and combustion control, on the leak detection and the ventilation, on the materials and on the safety devices, the performance requirements including power, fuel consumption and emissions, the reliability requirements, and the test methods and the marking.
For an engine builder, a vehicle manufacturer or a testing house in China, this is the governing text.
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Document preview — GB/T 44723-2024
National Standard of the People's Republic of China
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- ForewordIII
- 1 Scope1
- 2 Normative references1
- 3 Terms and Definitions2
- 4 Technical Requirements2
- 4.1 General requirements2
- 4.2 Material requirements3
- 4.3 General performance requirements3
- 4.4 Conformance Requirements3
- 4.5 Emission requirements4
- 4.6 Reliability Requirements4
- 4.7 Durability requirements4
- 4.8 Noise requirements4
- 4.9 Electromagnetic compatibility (EMC) requirements4
- 4.10 Airtightness requirements4
- 4.11 Vibration requirements4
- 5 Test methods4
- 6 Safety requirements and protective measures5
- 6.1 General5
- 6.2 Safety requirements for the whole machine6
- 6.3 Safety requirements for related systems and components7
- 7 Inspection Rules7
- 7.1 Inspection category7
- 7.2 Type test7
- 7.3 Factory Inspection7
- 7.4 Random inspection7
- 8 Marking, packaging, transportation and storage8
- 8.1 Signs8
- 8.2 Packaging9
- 8.3 Transportation9
- 8.4 Storage9
- Appendix A (Informative) Main technical specifications and parameters of hydrogen internal combustion engines10
- Appendix B (Informative) Specifications for hydrogen internal combustion engine fuel12
- Reference13
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 for standardization documents" Drafting.
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document was proposed by the China Machinery Industry Federation.
This document is under the jurisdiction of the National Technical Committee for Standardization of Internal Combustion Engines (SAC/TC177).
This document was drafted by: China First Automobile Group Co., Ltd., Beijing Institute of Technology, Shanghai Motor Vehicle Inspection and Certification Technology Research Center
Co., Ltd., Guangxi Yuchai Machinery Co., Ltd., Harbin Dongan Automotive Power Co., Ltd., Weichai Power Co., Ltd.,
Zhejiang Hexia Technology Co., Ltd., China Automotive Research Institute Automotive Inspection Center (Tianjin) Co., Ltd., Kunming Yunnei Power Co., Ltd., Shanghai
New Energy Automobile Technology Co., Ltd., Suzhou Intemodel Technology Co., Ltd., Beijing Foton Cummins Engine Co., Ltd., FAW
Jiefang Automobile Co., Ltd. Wuxi Diesel Engine Factory, Jiangling Motors Co., Ltd., Ningbo Geely Luoyou Engine Parts Co., Ltd., China
Beijing Research Institute of Sinopec Lubricant Co., Ltd., Tongji University, Tianjin Internal Combustion Engine Research Institute (Tianjin Motorcycle Technology Center), Chongqing Changan Automobile
Co., Ltd., China Automotive Engineering Research Institute Co., Ltd., Kailong High-Tech Co., Ltd., Cummins (China) Investment Co., Ltd.
Company, Daimler (China) Commercial Vehicle Investment Co., Ltd., Shanghai Automotive Group Co., Ltd., China Merchants Inspection Vehicle Technology Research Institute
Co., Ltd., Wuxi Advanced Internal Combustion Power Technology Innovation Center, China Automotive Research Institute Automobile Inspection Center (Kunming) Co., Ltd., China Automotive Research Institute Automobile Inspection Center
(Ningbo) Co., Ltd., Nanyue Electric Control (Hengyang) Industrial Technology Co., Ltd.
The main drafters of this document are: Li Jincheng, Qian Dingchao, Sun Baigang, Guo Hua, Han Linghai, Ji Weibin, Qin Yufeng, Zhang Xiaolong, Wang Decheng, Sun Yan,
Zheng Jian, Wu Chunling, Zhang Haifeng, Liu Jianyong, Qu Feng, Wang Yijiang, Hu Youming, Gong Yingli, Lou Diming, Zeng Xiaochun, Ma Junjie, Jia Bin, E Hongjun,
Luo Qinghe, Li Qian, Zhang Haimin, Mao Zhanxin, Zhou Ying, Zhao Luming, Li Yanhua, Shi Laihua, Xiao Gang, Xu Zhenbo, Qu Hanshi, Wu Taoyang, Peng Hu,
Liu Dianyun, Fan Zhenyang, Li Zhijie, Miao Ruigang, Ding Qianlan, Lu Shihao, Hua Weijie, Xiang Heping, and Mo Rui.
1 Scope
This document specifies the technical requirements, test methods, safety requirements and protective measures, inspection rules and marking, packaging,
Transportation and storage.
This document applies to reciprocating internal combustion engines with a power less than or equal to 560 kW using hydrogen as fuel.
2 Normative references
The contents of the following documents constitute essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to this document.
GB/T 191 Pictorial markings for packaging, storage and transportation
GB/T 1147.1 Small and medium power internal combustion engines Part 1: General technical requirements
GB/T 1147.2 Small and medium power internal combustion engines Part 2: Test methods
GB/T 1883.1 Reciprocating internal combustion engines - Vocabulary - Part 1: Engine design and operation terms
GB/T 3821 Cleanliness limits and determination methods for small and medium power internal combustion engines
GB/T 4556 Fire protection for reciprocating internal combustion engines
GB/T 6388 Shipping and receiving marks for transport packaging
GB/T 6994 Definitions and general provisions for marine electrical equipment
GB/T 7184 Vibration assessment method for reciprocating internal combustion engines
GB 7258 Technical conditions for motor vehicle operation safety
GB/T 10398 Small gasoline engine vibration rating and test methods
GB 14023 Radio disturbance characteristics of vehicles, ships and internal combustion engines - Limits and measurement methods for protecting off-board receivers
GB/T 14097 Noise limits for reciprocating internal combustion engines
GB 14622-2016 Motorcycle pollutant emission limits and measurement methods (China Phase IV)
GB 15097-2016 Emission limits and measurement methods for exhaust pollutants from marine engines (China Phase I and II)
GB/T 15371 Evaluation method for torsional vibration of crankshaft system of reciprocating internal combustion engine
Remaining clauses in the full document
- 3 Terms and Definitions
- 4 Technical Requirements
- 5 Test methods
- 6 Safety requirements and protective measures
- 7 Inspection Rules
- 8 Marking, packaging, transportation and storage
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 16 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 191Graphical symbols marking for handling and storage of packages
- GB/T 1147.1Small and medium power internal combustion engines - Part 1: General technical specifications
- GB/T 1147.2Small and medium power internal combustion engines - Part 2:Test methods
- GB/T 1883.1Reciprocating internal combustion engines - Vocabulary - Part 1: Terms for engine design and operation
- GB/T 3821Small and medium power internal combustion engines - Cleanliness limits and measurement methods
- GB/T 4556Reciprocating internal combustion engines - Fire protection
GB/T 28046
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Related Standards
GB 14023-2022 — Vehicles, boats and internal combustion engines - Radio disturbance characteristics - Limits and methods of measurement for the protection of off-board receivers
GB 14622-2016 — Limits and measurement methods for emissions from motorcycles (China stage IV)
GB 15097-2016 — Limits and measurement methods for exhaust pollutants from marine engines (China I, II)
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