由江汉油田三机厂、北京通用机械研究所、华中理工大学合作研制的CNG压缩机系列产品（即汽车加气机），最近验证定型。　　该产品排气量、密封性能、风冷适应性等指标，均可与国外同类产品相媲美，其价格仅为国际产品的四分之一。国产汽车加气机研制成功 The CNG compressor series (ie, automobile air-filling machine) developed by Jianghan Oilfield Third Machinery Factory, Beijing General Machinery Research Institute and Huazhong University of Science and Technology recently verified and finalized the model. The product displacement, sealing performance, air-conditioning and other indicators of adaptability, comparable with similar foreign products, the price is only a quarter of international products. Domestic car filling machine developed successfully