| 摘要 |
A centrifugal pump and method of making the same. The pump includes a casing having at least one impeller, an axial fluid inlet opening, and an outlet opening of a predetermined area. The impeller has a plurality of radially disposed impeller blades which may be straight or curved, and the circumferential area at the end of the blade tips is equal to the discharge area in the casing at the tips of the blades, and the last two mentioned areas are equal to the outlet opening area. In a multi-stage pump the width of the blades are successively larger.
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