NO20002390L - Centrifugal pump with side channel - Google Patents

Centrifugal pump with side channel

Info

Publication number
NO20002390L
NO20002390L NO20002390A NO20002390A NO20002390L NO 20002390 L NO20002390 L NO 20002390L NO 20002390 A NO20002390 A NO 20002390A NO 20002390 A NO20002390 A NO 20002390A NO 20002390 L NO20002390 L NO 20002390L
Authority
NO
Norway
Prior art keywords
side channel
impeller
centrifugal pump
circumferential direction
blades
Prior art date
Application number
NO20002390A
Other languages
Norwegian (no)
Other versions
NO20002390D0 (en
Inventor
Peter Fandrey
Original Assignee
Sterling Fluid Sys Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from PCT/EP1997/006236 external-priority patent/WO1999024719A1/en
Application filed by Sterling Fluid Sys Gmbh filed Critical Sterling Fluid Sys Gmbh
Priority to NO20002390A priority Critical patent/NO20002390L/en
Publication of NO20002390D0 publication Critical patent/NO20002390D0/en
Publication of NO20002390L publication Critical patent/NO20002390L/en

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  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

Oppfinnelsen vedrører en sidekanalsentrifugalpumpe med et hus som danner en sidekanal (1). Husflaten nær sidekanalen danner en forside (13) som ligger nær impelleren. Overgangskanten (2, 3, 7) mellom sidekanalen (1) og forsiden (3) er avrundet i områdene der den avviker fra den omkretsmessige retningen. I forplanet har bladene (16) til impelleren en gitt ribbebredde i den omkretsmessige retningen. Ifølge oppfinnelsen er radien (15) til overgangskanten (7) større enn 0,25 (sek. /m) ganger produktet av ribbebredden x bladhastigheten der impellerbladene (16) går ut fra forsiden (13, 14) og overlapper inn i området til sidekanalen (1). Dette reduserer kavitasjon og støy.The invention relates to a side channel centrifugal pump having a housing forming a side channel (1). The housing surface near the side channel forms a front face (13) which is close to the impeller. The transition edge (2, 3, 7) between the side channel (1) and the front side (3) is rounded in the areas where it deviates from the circumferential direction. In the front plane, the blades (16) of the impeller have a given rib width in the circumferential direction. According to the invention, the radius (15) of the transition edge (7) is greater than 0.25 (sec / m) times the product of the rib width x blade speed at which the impeller blades (16) exit from the front (13, 14) and overlap in the area of the side channel. (1). This reduces cavitation and noise.

NO20002390A 1997-11-10 2000-05-08 Centrifugal pump with side channel NO20002390L (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NO20002390A NO20002390L (en) 1997-11-10 2000-05-08 Centrifugal pump with side channel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/EP1997/006236 WO1999024719A1 (en) 1997-11-10 1997-11-10 Side channel centrifugal pump
NO20002390A NO20002390L (en) 1997-11-10 2000-05-08 Centrifugal pump with side channel

Publications (2)

Publication Number Publication Date
NO20002390D0 NO20002390D0 (en) 2000-05-08
NO20002390L true NO20002390L (en) 2000-07-05

Family

ID=19911117

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20002390A NO20002390L (en) 1997-11-10 2000-05-08 Centrifugal pump with side channel

Country Status (1)

Country Link
NO (1) NO20002390L (en)

Also Published As

Publication number Publication date
NO20002390D0 (en) 2000-05-08

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Legal Events

Date Code Title Description
FC2A Withdrawal, rejection or dismissal of laid open patent application