GB1523893A - Pump with axial flow inducer - Google Patents

Pump with axial flow inducer

Info

Publication number
GB1523893A
GB1523893A GB34529/75A GB3452975A GB1523893A GB 1523893 A GB1523893 A GB 1523893A GB 34529/75 A GB34529/75 A GB 34529/75A GB 3452975 A GB3452975 A GB 3452975A GB 1523893 A GB1523893 A GB 1523893A
Authority
GB
United Kingdom
Prior art keywords
inducer
diameter
impeller
pump
fluid flowing
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.)
Expired
Application number
GB34529/75A
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.)
Nikkiso Co Ltd
Original Assignee
Nikkiso Co Ltd
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 JP3058775A external-priority patent/JPS51105602A/en
Priority claimed from JP50030588A external-priority patent/JPS51105603A/en
Priority claimed from JP3058975A external-priority patent/JPS51105604A/en
Application filed by Nikkiso Co Ltd filed Critical Nikkiso Co Ltd
Publication of GB1523893A publication Critical patent/GB1523893A/en
Expired 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
    • F04D29/2261—Rotors specially for centrifugal pumps with special measures
    • F04D29/2277—Rotors specially for centrifugal pumps with special measures for increasing NPSH or dealing with liquids near boiling-point
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/71—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with propellers
    • B01F27/711—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with propellers co-operating with stationary guiding means, e.g. baffles

Abstract

1523893 Centrifugal pumps NIKKISO CO Ltd 20 Aug 1975 [13 March 1975 (3)] 34529/75 Heading F1C In a pump comprising an impeller preceded by an axial-flow inducer coaxial with the impeller, axial counterflows in the fluid flowing from the pump inlet to the impeller are confined to the downstream side of the inlet so as to reduce noise caused by such counterflows. The first part 16a, Fig. 6, of the inducer is of smaller pitch than the second part 16b whereby fluid flowing back from the main impeller 14 is recirculated through the second part. An annular barrier 22 may be provided to cause fluid flowing back past the first inducer part 16a to be recirculated via the inducer. The axial distance between the inducer parts 16a, 16b, is equal to 0À85 to 0À95 times the inducer diameter. In the pump shown in Fig. 7, the inducer parts differ in diameter, the diameter of the part 16b being 0À9 to 0À97 times the diameter of the part 16a. As before fluid flowing back from the main impeller 14 is recirculated through the inducer part 16b. A sleeve 26 may be secured to the front end of the inducer part 16a, return flow originating in front of the inducer being deflected as shown by an annular flange 28. The part 16b of smaller diameter may be omitted, Figs. 1-3 (not shown).
GB34529/75A 1975-03-13 1975-08-20 Pump with axial flow inducer Expired GB1523893A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP3058775A JPS51105602A (en) 1975-03-13 1975-03-13 INDEYUUSATSUKI SUIRYOKUSOCHINO SOONBOSHIHOHO
JP50030588A JPS51105603A (en) 1975-03-13 1975-03-13 Jikuryuindeyuusanokairyo
JP3058975A JPS51105604A (en) 1975-03-13 1975-03-13 JIKURYUINDEYUUSANOKAIRYO

Publications (1)

Publication Number Publication Date
GB1523893A true GB1523893A (en) 1978-09-06

Family

ID=27287023

Family Applications (1)

Application Number Title Priority Date Filing Date
GB34529/75A Expired GB1523893A (en) 1975-03-13 1975-08-20 Pump with axial flow inducer

Country Status (9)

Country Link
BR (1) BR7507097A (en)
CA (1) CA1041834A (en)
CH (1) CH606804A5 (en)
DE (1) DE2538162C3 (en)
FR (1) FR2303975A1 (en)
GB (1) GB1523893A (en)
IT (1) IT1043574B (en)
NL (1) NL175093C (en)
SE (1) SE418890B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2312929A (en) * 1996-05-07 1997-11-12 Inst Francais Du Petrole Axial flow and centrifugal combination pumping system
WO1999054026A1 (en) * 1998-04-22 1999-10-28 Irish & Associates A flow directing device for a medium consistency pump
US6210105B1 (en) 1998-11-27 2001-04-03 Irish & Asssociates Flow directing device for a medium consistency pump
US10371151B2 (en) 2014-01-12 2019-08-06 Alfa Corporate Ab Self-priming centrifugal pump
US10422337B2 (en) * 2014-01-12 2019-09-24 Alfa Laval Corporate Ab Self-priming centrifugal pump
CN112206409A (en) * 2020-11-10 2021-01-12 山东大学 Magnetic suspension mixed flow heart pump

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2558840C2 (en) * 1975-12-27 1983-03-24 Klein, Schanzlin & Becker Ag, 6710 Frankenthal Device to reduce cavitation wear
US4275988A (en) * 1978-12-18 1981-06-30 Kalashnikov L F Axial or worm-type centrifugal impeller pump
US4884943A (en) * 1987-06-25 1989-12-05 A. Ahlstrom Corporation Method and apparatus for pumping high-consistency fiber suspension
US5304033A (en) * 1992-07-20 1994-04-19 Allied-Signal Inc. Rotary compressor with stepped cover contour
FR2765639B1 (en) * 1997-07-04 2004-11-26 Europ Propulsion INDUCER EQUIPMENT FOR PUMP WITH LARGE SUCTION CAPACITY
FI111023B (en) 1998-12-30 2003-05-15 Sulzer Pumpen Ag Method and apparatus for pumping material and rotor used in connection with the apparatus
DE19918286A1 (en) * 1999-04-22 2000-10-26 Ksb Ag Inducer for centrifugal pump is assembled from individual parts, and has blades fitted into and welded to grooves in inducer hub

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3299821A (en) 1964-08-21 1967-01-24 Sundstrand Corp Pump inducer
DE1931527U (en) 1965-11-26 1966-01-27 Steinebrunner & Co Maschinenfa DEVICE FOR TRIMMING BRUSHES WITH A CENTRAL FIELD DETACHED FROM THE OUTSIDE FIELD.
US3384022A (en) 1966-04-27 1968-05-21 Ebara Mfg Centrifugal pump

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2312929A (en) * 1996-05-07 1997-11-12 Inst Francais Du Petrole Axial flow and centrifugal combination pumping system
GB2312929B (en) * 1996-05-07 2000-08-23 Inst Francais Du Petrole Axial-flow and centrifugal pump system
WO1999054026A1 (en) * 1998-04-22 1999-10-28 Irish & Associates A flow directing device for a medium consistency pump
US6210105B1 (en) 1998-11-27 2001-04-03 Irish & Asssociates Flow directing device for a medium consistency pump
US10371151B2 (en) 2014-01-12 2019-08-06 Alfa Corporate Ab Self-priming centrifugal pump
US10422337B2 (en) * 2014-01-12 2019-09-24 Alfa Laval Corporate Ab Self-priming centrifugal pump
CN112206409A (en) * 2020-11-10 2021-01-12 山东大学 Magnetic suspension mixed flow heart pump

Also Published As

Publication number Publication date
NL175093B (en) 1984-04-16
DE2538162B2 (en) 1979-04-26
DE2538162C3 (en) 1980-01-03
BR7507097A (en) 1976-09-21
SE418890B (en) 1981-06-29
DE2538162A1 (en) 1976-09-23
FR2303975B1 (en) 1982-07-30
NL7509973A (en) 1976-09-15
NL175093C (en) 1984-09-17
IT1043574B (en) 1980-02-29
CH606804A5 (en) 1978-11-15
CA1041834A (en) 1978-11-07
FR2303975A1 (en) 1976-10-08
SE7509953L (en) 1976-09-14

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years

Effective date: 19950819