ISO 14469-2:2007 道路车辆 压缩天然气（CNG）补给燃料接头 第2部分：20MPa（200巴）接头（尺寸2）
标准编号：ISO 14469-2:2007
中文名称：道路车辆 压缩天然气（CNG）补给燃料接头 第2部分：20MPa（200巴）接头（尺寸2）
英文名称：Road vehicles — Compressed natural gas (CNG) refuelling connector — Part 2: 20 MPa (200 bar) connector, size 2
发布日期：2007-12
标准范围
ISO 14469-2:20 07适用于压缩天然气(CNG)车辆喷嘴和容器，其完全由需要的新的、未使用的零件和材料构成，特别是对于加注时间相当于由常规柴油发动机驱动的城市公共汽车的大型CNG城市公共汽车。所提出的连接器尺寸2提供了比根据ISO 14469-1的连接器更大的横截面，因此允许在明显更短的时间内为车辆加油。研究表明，所提出的2号连接器提供的质量流量是ISO 14469-1中规定的连接器的两倍以上。CNG加注连接喷嘴由以下部件组成（如适用）:插座和保护帽（安装在车辆上）；喷嘴。ISO 14469-2:20 07仅适用于工作压力为20 MPa的设备。ISO 14469-2:20 07适用于具有标准化配合组件的器械。ISO 14469-2:20 07适用于以下连接器防止天然气车辆由服务压力高于车辆的加气站加油，以及允许天然气汽车由服务压力等于或低于车辆燃油系统服务压力的加气站加气。根据ISO 15403，ISO 14469-2:20 07适用于压缩天然气。
ISO 14469-2:2007 applies to compressed natural gas (CNG) vehicle nozzles and receptacles, constructed entirely of new, unused parts and materials for which there is a demand, in particular for large CNG urban buses of refuelling times equivalent to those of urban buses driven by conventional diesel engines. The proposed connector, size 2, offers a larger cross section than the connector in accordance with ISO 14469-1 and, therefore, permits refuelling of the vehicles within significantly shorter time periods. Studies have shown that the proposed connector, size 2, offers more than twice the mass flow of the connectors specified in ISO 14469-1. CNG fuelling connection nozzles consist of the following components, as applicable:
- receptacle and protective cap (mounted on vehicle);
- nozzle.
- prevent natural gas vehicles from being fuelled by dispenser stations with service pressures higher than the vehicle, and
- allow natural gas vehicles to be fuelled by dispenser stations with service pressures equal to or lower than the vehicle fuel system service pressure.
标准预览图
