JPS54137102A - Manufacturing method of semi-open type impeller - Google Patents

Manufacturing method of semi-open type impeller

Info

Publication number
JPS54137102A
JPS54137102A JP4416778A JP4416778A JPS54137102A JP S54137102 A JPS54137102 A JP S54137102A JP 4416778 A JP4416778 A JP 4416778A JP 4416778 A JP4416778 A JP 4416778A JP S54137102 A JPS54137102 A JP S54137102A
Authority
JP
Japan
Prior art keywords
blade
plate
semi
open type
side plate
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP4416778A
Other languages
Japanese (ja)
Other versions
JPS5759439B2 (en
Inventor
Kenichi Kajiwara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ebara Corp
Original Assignee
Ebara Corp
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
Application filed by Ebara Corp filed Critical Ebara Corp
Priority to JP4416778A priority Critical patent/JPS54137102A/en
Publication of JPS54137102A publication Critical patent/JPS54137102A/en
Publication of JPS5759439B2 publication Critical patent/JPS5759439B2/ja
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/24—Vanes
    • F04D29/242—Geometry, shape

Abstract

PURPOSE: To greatly reduce the leak loss of a semi-open type impeller, by bending a portion of a blade extended from a main plate of an impeller toward a side plate to form the second portion extended in parallel to the side plate and thus expanding the width of the blade's front rim.
CONSTITUTION: A main plate 1 and blade 2 are made of steel plate. A cylindrical body having the first portion 2a extended from the main plate 1 toward the side plate and also having the second portion 2b bent from the first portion 2a to the direction in parallel with the side plate is formed of the steel plate. This cylindrical body is divided, for example, into four to form a blade. A flange 2c is also formed at the moment of the working to the rim of the first portion 2a and welded to the main plate 1. The blade of such construction with the first and second portions 2a, 2b is very large in width and can greatly reduce the leak loss of the impeller.
COPYRIGHT: (C)1979,JPO&Japio
JP4416778A 1978-04-17 1978-04-17 Manufacturing method of semi-open type impeller Granted JPS54137102A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4416778A JPS54137102A (en) 1978-04-17 1978-04-17 Manufacturing method of semi-open type impeller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4416778A JPS54137102A (en) 1978-04-17 1978-04-17 Manufacturing method of semi-open type impeller

Publications (2)

Publication Number Publication Date
JPS54137102A true JPS54137102A (en) 1979-10-24
JPS5759439B2 JPS5759439B2 (en) 1982-12-14

Family

ID=12684023

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4416778A Granted JPS54137102A (en) 1978-04-17 1978-04-17 Manufacturing method of semi-open type impeller

Country Status (1)

Country Link
JP (1) JPS54137102A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2582746A1 (en) * 1984-08-16 1986-12-05 Sarlin Ab Oy E PUMP ROTOR, IN PARTICULAR CENTRIFUGAL PUMP ROTOR
EP0406788A2 (en) * 1989-07-05 1991-01-09 NOWAX S.r.l. Open bladed impeller, particularly for centrifugal pump
EP0496084A1 (en) * 1991-01-23 1992-07-29 Philipp Hilge GmbH Impeller for centrifugal pumps

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5186663U (en) * 1974-12-30 1976-07-12

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5186663U (en) * 1974-12-30 1976-07-12

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2582746A1 (en) * 1984-08-16 1986-12-05 Sarlin Ab Oy E PUMP ROTOR, IN PARTICULAR CENTRIFUGAL PUMP ROTOR
US4676718A (en) * 1984-08-16 1987-06-30 Oy E. Sarlin Ab Impeller for a pump, especially a vortex pump
EP0406788A2 (en) * 1989-07-05 1991-01-09 NOWAX S.r.l. Open bladed impeller, particularly for centrifugal pump
EP0406788A3 (en) * 1989-07-05 1991-06-26 Nowax S.R.L. Open bladed impeller, particularly for centrifugal pump
EP0496084A1 (en) * 1991-01-23 1992-07-29 Philipp Hilge GmbH Impeller for centrifugal pumps

Also Published As

Publication number Publication date
JPS5759439B2 (en) 1982-12-14

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