DRAIN PUMP

DRAIN PUMP

PROBLEM TO BE SOLVED: To enable a sound pressure level of paddling sound to be reduced even in a low lift range, the paddling sound being caused by a pump rotor.SOLUTION: A pump rotor 11 comprises an annular porous body 20 and a support 12 supporting the annular porous body 20. The porous body 20 co...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: ONODERA YASUAKI
Format: Patent
Sprache:eng
Schlagworte:
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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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To enable a sound pressure level of paddling sound to be reduced even in a low lift range, the paddling sound being caused by a pump rotor.SOLUTION: A pump rotor 11 comprises an annular porous body 20 and a support 12 supporting the annular porous body 20. The porous body 20 confines bubbles inside during rotating, the bubbles generating in a fluid in a rotor housing chamber, and imparts a centrifugal force to the fluid.