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Publication of DE1302982BpublicationCriticalpatent/DE1302982B/de
F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
F04D—NON-POSITIVE-DISPLACEMENT PUMPS
F04D29/00—Details, component parts, or accessories
F04D29/04—Shafts or bearings, or assemblies thereof
F04D29/042—Axially shiftable rotors
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Engineering & Computer Science
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Mechanical Engineering
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General Engineering & Computer Science
(AREA)
Structures Of Non-Positive Displacement Pumps
(AREA)
Description
Hierzu 1 Blatt Zeichnungen1 sheet of drawings
Claims (1)
Patentanspruch:Claim:Rohrleitungspumpe mit axial verschiebbarem Laufrad, das bei Stillstand der Pumpe einen
Durchströmungsquerschnitt freigibt, der gleich oder größer als der Querschnitt der angeschlossenen
Rohrleitung ist, dadurch gekennzeichnet, daß das Laufrad (1) am äußeren Umfang (4) der Einströmseite mit einem sich
konisch erweiternden Ring (2) verbunden ist, dessen konische Fläche bei laufender Pumpe bis an
die Rohrinnenwand (3) reicht.Pipeline pump with axially displaceable impeller which, when the pump is at a standstill, releases a flow cross-section which is equal to or greater than the cross-section of the connected pipeline, characterized in that the impeller (1) on the outer circumference (4) of the inflow side has a conically widening ring (2) is connected, the conical surface of which extends to the inner wall of the pipe (3) when the pump is running.