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1. 发明申请

WO1994016804A1 EROSION RESISTANT MIXING IMPELLER 审中-公开
标题翻译：耐腐蚀混合叶轮
公开(公告)号：WO1994016804A1
公开(公告)日：1994-08-04
申请号：PCT/US1994000318
申请日：1994-01-10
申请人： GENERAL SIGNAL CORPORATION
发明人： GENERAL SIGNAL CORPORATION , WEETMAN, Ronald, J. , KEHR, Frederick, William, III , TAYLOR, Thomas, Alfred , EVERDYKE, Jonathan, C.
IPC分类号： B01F05/12
CPC分类号： B01F7/00016 , B01F7/00033 , B01F7/00341 , B01F7/00358
摘要： In order to extend the life of mixing impellers which circulate materials, the blades are constructed from plates (40, 42) into an airfoil configuration which does not limit the thickness of the plates and thereby allows the use of thick plates having extended life. An erosion resistant layer (66) is located at least over the leading edge (44) region of the blade and the shape of the blade reduces velocity of flow over the leading edge; the camber of the blade (50) being maximized midway between the leading and trailing edge (46). The suction surface of the blade in the region subject to erosion is continuous thereby avoiding discontinuities which form vortices which enhance erosion. Fins (32), which may be at the tip on the suction side of the blade from midway between the leading and trailing egdes to the trailing edge reduces tip vortices thereby further extending blade life.
摘要翻译：为了延长使材料循环的搅拌叶轮的寿命，叶片由板（40,42）构成为翼型构造，其不限制板的厚度，从而允许使用具有延长寿命的厚板。防侵蚀层（66）至少位于叶片的前缘（44）区域的上方，并且叶片的形状减小了前缘上的流动速度; 刀片（50）的弯度在前缘和后缘（46）之间的中间最大。在受到侵蚀的区域中的叶片的吸力表面是连续的，从而避免形成涡流的不连续性，这增加侵蚀。可以在叶片的吸入侧的尖端处的叶片（32）从前缘和后缘到后缘之间的中间减小尖端涡流，从而进一步延长叶片寿命。

2. 发明公开

EP0651672A1 EROSION RESISTANT MIXING IMPELLER 失效
标题翻译：耐侵蚀的混合转子。
公开(公告)号：EP0651672A1
公开(公告)日：1995-05-10
申请号：EP94906061.0
申请日：1994-01-10
申请人： GENERAL SIGNAL CORPORATION
发明人： WEETMAN, Ronald, J. , KEHR, Frederick, William, III , TAYLOR, Thomas, Alfred , EVERDYKE, Jonathan, C.
IPC分类号： B01F7 , B01F15
CPC分类号： B01F7/00016 , B01F7/00033 , B01F7/00341 , B01F7/00358
摘要： In order to extend the life of mixing impellers which circulate materials, the blades are constructed from plates (40, 42) into an airfoil configuration which does not limit the thickness of the plates and thereby allows the use of thick plates having extended life. An erosion resistant layer (66) is located at least over the leading edge (44) region of the blade and the shape of the blade reduces velocity of flow over the leading edge; the camber of the blade (50) being maximized midway between the leading and trailing edge (46). The suction surface of the blade in the region subject to erosion is continuous thereby avoiding discontinuities which form vortices which enhance erosion. Fins (32), which may be at the tip on the suction side of the blade from midway between the leading and trailing egdes to the trailing edge reduces tip vortices thereby further extending blade life.

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