Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative.
This standard is prepared in accordance with the rules given in GB/T 1.1-2009.
This standard was proposed by the Ministry of Industry and Information Technology of the People's Republic of China.
This standard is under the jurisdiction of the National Technical Committee of Auto Standardization (SAC/TC 114).
Technical specification of LNG vehicle
1 Scope
This standard specifies the terms and definitions, technical requirements, inspection rules, marking, transportation, storage and ex-factory documents of liquefied natural gas (hereinafter referred to as "LNG") vehicles.
This standard is applicable to M2, M3, N2, and N3 vehicles which can use liquefied natural gas fuel.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated reference, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
GB 3836.1 Explosive atmospheres—Part 1: Equipment—General requirements
GB 7258-2017 Technical specifications for safety of power-driven vehicles operating on roads
GB/T 9969 General principles for preparation of instructions for use of industrial products
GB 11567 Motor vehicles and trailers-lateral and rear underrun protection requirements
GB/T 17676-1999 Natural gas vehicle and liquefied petroleum gas vehicle—Identification marks
GB/T 17895 Natural gas vehicle and liquefied petroleum gas vehicle—Vocabulary
GB/T 20734-2006 Mounting requirements for liquefied natural gas vehicle special equipment
GB/T 25986 Filling device of natural gas vehicles
QC/T 471 Specifications for auto diesel engines
QC/T 691 Technical specification of single-fuel natural gas vehicle engine
QC/T 755 Technology requirements of special equipment for LNG vehicle
3 Terms and definitions
For the purposes of this standard, the following terms and definitions given in GB/T 17895 and QC/T 755 and the following apply.
3.1
special equipment for LNG vehicles
equipment for storing and supplying LNG to the vehicle, composed of components for gas storage and supply component, filling and safety
3.2
liquid signal system
system for measuring the liquid level in the vehicle gas cylinders, converting the level to liquid volume and displaying it
4 Technical requirements
4.1 General requirements
4.1.1 The vehicle shall be manufactured according to the drawings and technical documents approved through the established procedures. All parts and components shall have product certificates and be re-inspected before assembly.
4.1.2 All performances of the LNG vehicle shall meet the requirements of GB 7258-2017 and other compulsory national standards.
4.1.3 The LNG vehicle shall be equipped with independent special equipment for LNG vehicles, which is the only equipment allowed to output LNG vehicle fuel.
4.1.4 The LNG vehicle shall be provided with a gas leakage alarm device.
4.1.5 The LNG vehicle shall be provided with a rubber belt of electrostatic conductivity.
4.1.6 The LNG vehicle cab shall be provided with a dry powder fire extinguisher.
4.1.7 Other components installed on the LNG vehicle shall not affect the operations of filling and valves and other devices.
4.1.8 The technical conditions of the ignition engine shall comply with the specifications of QC/T 691; the technical conditions of the compression-ignition engine shall comply with the specifications of QC/T 471.
4.1.9 The automobile manufacturer shall fill the engine oil meeting the requirements of the engine manufacturer, which can be temporarily replaced by diesel engine oil with quality grade higher than CH-4.
4.1.10 All components shall be made of materials with high temperature resistance and corrosion resistance according to engine exhaust temperature and exhaust composition.
4.2 Special equipment for LNG vehicles
The safety protection shall meet the requirements of GB 7258-2017. The special equipment for LNG vehicles shall comply with the requirements of QC/T 755 and the requirements as follows:
a) The pressure and temperature of the output gas of the special equipment for LNG vehicles shall meet the requirements of the engine.
b) The special equipment for LNG vehicles shall automatically cut off the LNG output under any of the following conditions:
1) Ignition switch is off;
2) The engine is not working;
3) The fuel lines are broken, fall off, etc.
c) All electrical components of special equipment for LNG vehicles shall comply with the requirements of GB 3836.1.
d) The filling device shall meet the requirements of GB/T 25986.
e) The liquid signal system shall meet the following requirements:
1) The liquid volume display of LNG vehicle shall be instrument display, in liter (L) or percentage (scale).
2) LNG vehicles shall be able to give an alarm signal when the liquid volume in the gas cylinders is low: give the first alarm when the remaining liquid volume is not enough for the driving range of 100 km, and give the second alarm when the remaining liquid volume is not enough for the driving range of 50 km.
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Technical requirements
5 Inspection rules
6 Marking, transportation and storage
7 Ex-factory documents
Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative.
This standard is prepared in accordance with the rules given in GB/T 1.1-2009.
This standard was proposed by the Ministry of Industry and Information Technology of the People's Republic of China.
This standard is under the jurisdiction of the National Technical Committee of Auto Standardization (SAC/TC 114).
Technical specification of LNG vehicle
1 Scope
This standard specifies the terms and definitions, technical requirements, inspection rules, marking, transportation, storage and ex-factory documents of liquefied natural gas (hereinafter referred to as "LNG") vehicles.
This standard is applicable to M2, M3, N2, and N3 vehicles which can use liquefied natural gas fuel.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated reference, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
GB 3836.1 Explosive atmospheres—Part 1: Equipment—General requirements
GB 7258-2017 Technical specifications for safety of power-driven vehicles operating on roads
GB/T 9969 General principles for preparation of instructions for use of industrial products
GB 11567 Motor vehicles and trailers-lateral and rear underrun protection requirements
GB/T 17676-1999 Natural gas vehicle and liquefied petroleum gas vehicle—Identification marks
GB/T 17895 Natural gas vehicle and liquefied petroleum gas vehicle—Vocabulary
GB/T 20734-2006 Mounting requirements for liquefied natural gas vehicle special equipment
GB/T 25986 Filling device of natural gas vehicles
QC/T 471 Specifications for auto diesel engines
QC/T 691 Technical specification of single-fuel natural gas vehicle engine
QC/T 755 Technology requirements of special equipment for LNG vehicle
3 Terms and definitions
For the purposes of this standard, the following terms and definitions given in GB/T 17895 and QC/T 755 and the following apply.
3.1
special equipment for LNG vehicles
equipment for storing and supplying LNG to the vehicle, composed of components for gas storage and supply component, filling and safety
3.2
liquid signal system
system for measuring the liquid level in the vehicle gas cylinders, converting the level to liquid volume and displaying it
4 Technical requirements
4.1 General requirements
4.1.1 The vehicle shall be manufactured according to the drawings and technical documents approved through the established procedures. All parts and components shall have product certificates and be re-inspected before assembly.
4.1.2 All performances of the LNG vehicle shall meet the requirements of GB 7258-2017 and other compulsory national standards.
4.1.3 The LNG vehicle shall be equipped with independent special equipment for LNG vehicles, which is the only equipment allowed to output LNG vehicle fuel.
4.1.4 The LNG vehicle shall be provided with a gas leakage alarm device.
4.1.5 The LNG vehicle shall be provided with a rubber belt of electrostatic conductivity.
4.1.6 The LNG vehicle cab shall be provided with a dry powder fire extinguisher.
4.1.7 Other components installed on the LNG vehicle shall not affect the operations of filling and valves and other devices.
4.1.8 The technical conditions of the ignition engine shall comply with the specifications of QC/T 691; the technical conditions of the compression-ignition engine shall comply with the specifications of QC/T 471.
4.1.9 The automobile manufacturer shall fill the engine oil meeting the requirements of the engine manufacturer, which can be temporarily replaced by diesel engine oil with quality grade higher than CH-4.
4.1.10 All components shall be made of materials with high temperature resistance and corrosion resistance according to engine exhaust temperature and exhaust composition.
4.2 Special equipment for LNG vehicles
The safety protection shall meet the requirements of GB 7258-2017. The special equipment for LNG vehicles shall comply with the requirements of QC/T 755 and the requirements as follows:
a) The pressure and temperature of the output gas of the special equipment for LNG vehicles shall meet the requirements of the engine.
b) The special equipment for LNG vehicles shall automatically cut off the LNG output under any of the following conditions:
1) Ignition switch is off;
2) The engine is not working;
3) The fuel lines are broken, fall off, etc.
c) All electrical components of special equipment for LNG vehicles shall comply with the requirements of GB 3836.1.
d) The filling device shall meet the requirements of GB/T 25986.
e) The liquid signal system shall meet the following requirements:
1) The liquid volume display of LNG vehicle shall be instrument display, in liter (L) or percentage (scale).
2) LNG vehicles shall be able to give an alarm signal when the liquid volume in the gas cylinders is low: give the first alarm when the remaining liquid volume is not enough for the driving range of 100 km, and give the second alarm when the remaining liquid volume is not enough for the driving range of 50 km.
Contents of GB/T 36883-2018
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Technical requirements
5 Inspection rules
6 Marking, transportation and storage
7 Ex-factory documents
