Liu Xingru, Wang Baolong, Li Xianting, et al. Performance of Rotary Compressor with Vapor Injection Mechanism on Blade[J]. Journal of refrigeration, 2016, 37(2).
Liu Xingru, Wang Baolong, Li Xianting, et al. Performance of Rotary Compressor with Vapor Injection Mechanism on Blade[J]. Journal of refrigeration, 2016, 37(2). DOI: 10.3969/j.issn.0253-4339.2016.02.001.
A novel vapor injection structure on blade for rotary compressor is put forward. In the new mechanism
the inject port will keep close until the gas suction process is finished and the compression pocket is isolated from the suction tube
which avoids the back-flowing of the injection refrigerant into the suction tube and the decrease of the volumetric efficiency. Based on a verified numerical model
the performance of the new configuration is investigated. The results indicate that: (1) this vapor injection mechanism can well eliminate the back-flowing of the injected refrigerant; (2) compared with the traditional injection configuration
the novel structure can enhance the volumetric efficiency 2.62%~3.67%.