HYDROFOIL IMPELLER

A hydrofoil impeller includes a central hub connected to a shaft, and being in the form of a flat plate and being perpendicular to the central axis. The central hub has first bolt holes arranged to form a pattern, the number of groups of first bolt holes corresponding to a number of blades attached...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	LEHTONEN, Markus, STRÖMMER, Ville
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING HEATING LIGHTING MECHANICAL ENGINEERING MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING NON-POSITIVE DISPLACEMENT PUMPS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	A hydrofoil impeller includes a central hub connected to a shaft, and being in the form of a flat plate and being perpendicular to the central axis. The central hub has first bolt holes arranged to form a pattern, the number of groups of first bolt holes corresponding to a number of blades attached to the central hub. At least three blades extend radially outwardly from the central hub, and have a group of second bolt holes arranged in a corresponding pattern to the first bolt holes so that the group of second bolt holes can be aligned with the group of first bolt holes and bolts can be placed through the first and second bolt holes to form bolted joints. The pattern in which the first holes and second holes are arranged in each of the respective groups of holes has a form of a closed curved shape.