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1983年9月17日至21日,机械工业部合肥通用机械研究所在青岛主持召开了《螺秆式制冷压缩机技术鉴定会》参加这次会议的有华中工学院、上海机械学院、武汉、大连、烟台冷冻机厂、岳阳制冷设备总厂、上海五一电机厂及铁道部上海、成都铁路局、石家庄车辆工厂等14个单位。BF10—2.1(原型号 BF10×10),BF10—2.5(原型号 BF10×12 L)螺杆式制冷压缩机是从1977年至1982年由铁道部四方车辆研究所设计试制的喷油螺杆半封闭式制冷压缩机。转子采用单边非对称(园弧—摆线)齿型,全部采用滚动轴承。机体内没有油泵,利用系统压差进行喷油冷却、密封和轴承润滑,简化了供油系统。卸载起动装置是一轴向简易滑阀,
From September 17 to September 21, 1983, Hefei General Machinery Research Institute of the Ministry of Machinery Industry hosted the “Technical Appraisal Conference of Spirulina Refrigeration Compressor” in Qingdao. The conference included Huazhong University of Science and Technology, Shanghai Mechanical Engineering Institute, Wuhan University, Dalian, Yantai Freezer Factory, Yueyang Refrigeration Equipment Factory, Shanghai 51 Motor Factory and the Ministry of Railways in Shanghai, Chengdu Railway Bureau, Shijiazhuang vehicle factories and other 14 units. BF10-2.1 (former model BF10 × 10), BF10-2.5 (former model BF10 × 12 L) screw refrigeration compressor is from 1977 to 1982 by the Ministry of Railways Sifang Vehicle Research Institute trial design of the semi-closed spray screw Refrigeration Compressors. Rotor using unilateral asymmetrical (Park Arc - cycloid) tooth type, all with rolling bearings. No pump body, the use of system pressure injection cooling, sealing and bearing lubrication, simplifying the fuel supply system. Unloading start device is an axial simple slide valve,