CENTRIFUGAL PUMP

A centrifugal pump includes an impeller (28) rotatably disposed in a volute case (29) for forcing a fluid to flow along a volute internal flow channel (84) formed in the volute case, and first to fourth flow-channel recessed portions (56-59) opening to the volute internal flow channel. The first and...

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Bibliographic Details
Main Authors AKIYAMA, Masahiro, OKABE, Kaku, TSURUDA, Kouki
Format Patent
LanguageEnglish
French
German
Published 20.12.2017
Subjects
BLASTING
HEATING
LIGHTING
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT PUMPS
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
WEAPONS
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Summary:A centrifugal pump includes an impeller (28) rotatably disposed in a volute case (29) for forcing a fluid to flow along a volute internal flow channel (84) formed in the volute case, and first to fourth flow-channel recessed portions (56-59) opening to the volute internal flow channel. The first and fourth flow-channel recessed portions are formed so as to be recessed in a direction substantially orthogonal to a direction of flow of the fluid. In a self-priming operation, the fluid is introduced into the first and fourth recessed portions whereupon the prime fluid is stirred within internal spaces of the first and second flow-channel recessed portions.
Bibliography:Application Number: EP20150178822