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公开(公告)号：EP1693573A3
公开(公告)日：2011-03-23
申请号：EP06002052.6
申请日：2006-02-01
发明人： Yoshida, Tetsuya , Chiba, Yoshimasa
CPC分类号： F04D29/628 , F04D29/108 , F04D29/588 , Y10T29/49243 , Y10T29/49865
摘要： The invention relates to an industrial pump, comprising a bearing (12) provided in the pump main body (1) and rotatably supporting both end sides of a rotating shaft (6) to which an impeller (7) is attached. A shaft seal device (16) is arranged adjacent to the bearings (12). The shaft seal device (16) is cooled by cooling water introduced from an external portion. The shaft seal case (16a) is fitted to the inner peripheral surface of a bracket (13) accommodating the shaft seal device (16) through shrink-fitting. Cooling water is circulated in the boundary portion between the bracket (13) and the shaft seal case (16a). This construction avoids O-ring sealings between the bracket (13) and the shaft seal case (16a) and thus avoids repair work due to O-ring wear and allows an easy manufacture of the pumps at reduced costs.
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公开(公告)号：EP1555439A3
公开(公告)日：2006-03-15
申请号：EP04018955.7
申请日：2004-08-10
CPC分类号： F04D1/063 , F04D29/047
摘要： A single-shaft multistage pump is provided to make small-sized and space-saved possible. The single-shaft multistage pump includes a rotary shaft (1) on which impellers (2) are disposed at multiple stages, bearings (31) and (43) for supporting the rotary shaft, and a balance device (8) adapted to apply, to the rotary shaft, a balance thrust force opposing an impeller thrust force. A water-lubricated bearing is used as each of the radial bearings, and the rotary shaft is supported by the water-lubricated bearings with a balance member (21) of the balance device interposed therebetween.
摘要翻译： 提供单轴多级泵可以实现小型化和节省空间。 单轴多级泵包括旋转轴（1），叶轮（2）在多级上设置，用于支撑旋转轴的轴承（31）和（43）以及平衡装置（8） 相对于旋转轴的平衡推力与叶轮推力相反。 使用水润滑轴承作为每个径向轴承，并且旋转轴由水润滑轴承支撑，平衡装置的平衡构件（21）插入其间。
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3.发明公开
公开(公告)号：EP1693573A2
公开(公告)日：2006-08-23
申请号：EP06002052.6
申请日：2006-02-01
发明人： Yoshida, Tetsuya , Chiba, Yoshimasa
IPC分类号： F04D29/10
CPC分类号： F04D29/628 , F04D29/108 , F04D29/588 , Y10T29/49243 , Y10T29/49865
摘要： The invention relates to an industrial pump, comprising a bearing (12) provided in the pump main body (1) and rotatably supporting both end sides of a rotating shaft (6) to which an impeller (7) is attached. A shaft seal device (16) is arranged adjacent to the bearings (12). The shaft seal device (16) is cooled by cooling water introduced from an external portion. The shaft seal case (16a) is fitted to the inner peripheral surface of a bracket (13) accommodating the shaft seal device (16) through shrink-fitting. Cooling water is circulated in the boundary portion between the bracket (13) and the shaft seal case (16a). This construction avoids O-ring sealings between the bracket (13) and the shaft seal case (16a) and thus avoids repair work due to O-ring wear and allows an easy manufacture of the pumps at reduced costs.
摘要翻译： 本发明涉及一种工业泵，其包括设置在泵主体（1）中的轴承（12），并可旋转地支撑安装有叶轮（7）的旋转轴（6）的两端。 轴密封装置（16）布置成与轴承（12）相邻。 轴封装置（16）由从外部引入的冷却水冷却。 轴密封壳体16a通过收缩配合装配到容纳轴封装置（16）的托架（13）的内周面上。 冷却水在支架（13）和轴封壳体（16a）之间的边界部分中循环。 这种结构避免了支架（13）和轴密封壳体（16a）之间的O形环密封，从而避免了由于O型圈磨损造成的维修工作，并且可以以较低的成本容易地制造泵。
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公开(公告)号：EP1555439A2
公开(公告)日：2005-07-20
申请号：EP04018955.7
申请日：2004-08-10
CPC分类号： F04D1/063 , F04D29/047
摘要： A single-shaft multistage pump is provided to make small-sized and space-saved possible. The single-shaft multistage pump includes a rotary shaft (1) on which impellers (2) are disposed at multiple stages, bearings (31) and (43) for supporting the rotary shaft, and a balance device (8) adapted to apply, to the rotary shaft, a balance thrust force opposing an impeller thrust force. A water-lubricated bearing is used as each of the radial bearings, and the rotary shaft is supported by the water-lubricated bearings with a balance member (21) of the balance device interposed therebetween.
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