Abstract
A centrifugal pump of a simplified and unorthodox design has been developed for the immediate satisfaction of special urgent requirements. The experiences gained were encouraging, and this type of pump has been successfully applied to a number of different purposes. Results of tests and recent investigations are given which suggest that some aspects of common centrifugal pump design practice are of lesser importance than are generally considered.
A few more items developed in connection with this pump are described, such as shaft seals especially suitable for high rotational speeds, means to reduce hydraulic friction losses of pump impellers, and a novel pump impeller designed to overcome cavitation difficulties.
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