Feng Jianmei,Qu Zongchang,Wang Disheng,Zhan Zhenqian
(Compressor Engineering Research Center,Xi'an Jiaotong University,Xi'an 710049,China)
Abstract:The influence of area of discharge port on the performance and efficiency of scroll compressor is discussed.The boundary curve equation of the maximum area of discharge port is theoretically deduced£® Considering the characteristics of a discharge process,the regularity that how the height and pitch of profile influence dynamic areas of discharge port is comparatively analyzed for arcª²shaped port and kidney-shaped ports.The results show that area of discharge port decreases with the height or pitch of profile increasing,and the influence of pitch is more obvious. For different basic parameters,arc-shaped port performs always better than kidney-shaped port and the improved effect of the arc-shaped port is more apparent with height and pitch of profile decreasing,which provides a criterion to determine the height and pitch of profile£®
Keywords:scroll compressor;profile height;profile pitch;discharge port