| 摘要 |
<p>A molten metal pump includes an impeller, a pump base housing at least partiallyenclosing the impeller, a shaft connected to the impeller, a motor connectedto the shaft, a motor mount plate for supporting the motor; and a post for connectingthe motor mount plate to the pump base housing. The molten metal pump can includea connector that connects the post to the motor mount plate. The molten metal pumpcan include a socket for connecting the shaft to the motor. The shaft can comprisean assembly including an elongated metal rod having a first end and a second endand a metal non-circular drive member attached at the second end of the elongatedmetal rod. The impeller can include a cap member having a plurality of generallypolygonally shaped inlet openings communicating with internal passages ofthe impeller, each inlet opening having an inner wall and an outer wall, the outerwall being longer than the inner wall, each inlet opening also including a leadingwall and a trailing wall, the leadi ng wall and the trailing wall each interconnectingthe inner wall and the outer wall and each being inclined such that an uppermostedge of each wall precedes a lowermost edge of each wall in a first rotational direction.</p> |
