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1. 发明授权

US5558502A Turbo pump and supply system with the pump 失效
标题翻译：涡轮泵和供油系统配有泵
公开(公告)号：US5558502A
公开(公告)日：1996-09-24
申请号：US359907
申请日：1994-12-20
申请人： Tetsuo Fukazawa , Chugen Chin
发明人： Tetsuo Fukazawa , Chugen Chin
IPC分类号： F03B3/12 , F04D13/04 , F04D15/02 , F04D29/24 , F04D29/66 , F04D31/00 , F04D29/22 , F04B9/10 , F04B49/00
CPC分类号： F04D15/0218 , F03B3/125 , F04D13/04 , F04D29/242 , F04D29/669 , F04D31/00 , Y02E10/223
摘要： In a turbo, pump according to the present invention, blades 3e and a shroud 3f are continuously formed with a boss 3c of a turbine wheel 3, a meridian plane configuration of the shroud 3f is formed as an concave arcing rotatable surface. A boss shroud 3f.sub.1 is formed substantially parallel to the axis of rotation O. A portion 3e.sub.2 of a blade outlet edge 3e.sub.1 is smoothly continuous to the boss shroud 3f.sub.1 and largely projects downstream. A portion 3e.sub.3 of the blade outlet edge 3e.sub.1 is formed substantially perpendicular to the axis of rotation O. The blade outlet edge 3e.sub.1 is formed with a smooth arc-like curve projecting convexly downstream between the portion 3e.sub.3 and the portion 3e.sub.2. An angle of the blade outlet edge 3e.sub.1 is set to an angle of substantially 0.degree. at the portion 3e.sub.2 of the blade outlet edge 3e.sub.1 and to substantially the conventional degree of angle at the portion 3e.sub.3 of the blade outlet edge 3e.sub.1. Further, the blade inlet 3a and the blade outlet 3b are connected there between by a curve.
摘要翻译：在根据本发明的涡轮泵中，叶片3e和护罩3f连续形成有涡轮机叶轮3的凸台3c，护罩3f的子午面构造形成为凹弧形旋转表面。凸起罩3f1基本上平行于旋转轴线O形成。叶片出口边缘3e1的部分3e2平滑地连续到凸台罩3f1并且大部分向下游突出。叶片出口边缘3e1的部分3e3基本上垂直于旋转轴线O形成。叶片出口边缘3e1形成有在部分3e3和部分3e2之间凸出下游的平滑的弧形曲线。叶片出口边缘3e1的角度在叶片出口边缘3e1的部分3e2处被设定为基本上为0°的角度，并且在叶片出口边缘3e1的部分3e3处被设定为基本上常规的角度。此外，叶片入口3a和叶片出口3b之间通过曲线连接。

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