GB1488604A - Centrifugal pump with variable impeller - Google Patents

Centrifugal pump with variable impeller

Info

Publication number
GB1488604A
GB1488604A GB4141/75A GB414175A GB1488604A GB 1488604 A GB1488604 A GB 1488604A GB 4141/75 A GB4141/75 A GB 4141/75A GB 414175 A GB414175 A GB 414175A GB 1488604 A GB1488604 A GB 1488604A
Authority
GB
United Kingdom
Prior art keywords
impeller
impellers
spring
centrifugal pump
flow area
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
GB4141/75A
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.)
Chandler Evans Inc
Original Assignee
Chandler Evans Inc
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 Chandler Evans Inc filed Critical Chandler Evans Inc
Publication of GB1488604A publication Critical patent/GB1488604A/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
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0027—Varying behaviour or the very pump
    • F04D15/0038—Varying behaviour or the very pump by varying the effective cross-sectional area of flow through the rotor
    • 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
    • F04D29/04—Shafts or bearings, or assemblies thereof
    • F04D29/042—Axially shiftable rotors
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)

Abstract

1488604 Centrifugal pumps CHANDLER EVANS Inc 30 Jan 1975 [8 Feb 1974] 4141/75 Heading F1C A centrifugal pump comprises a driver impeller 10 driven by a shaft 14 and bearing vanes 34' which mate with and entrain corresponding vanes 36' on a driven impeller 12 to define flow channels 34, 36 the flow area of which varies in response to changes in back pressure in order to maintain substantially constant pump output pressure. Fluid which passes through inlet 22 is induced into the impellers by the rotation of a spring 26 and is subsequently passed into a toriodal collector 32. Increase in back pressure is compensated by increased separation of impellers 10, 12 against the force in spring 26, resulting in a corresponding flow area increase, the pump output pressure thereby being maintained constant.
GB4141/75A 1974-02-08 1975-01-30 Centrifugal pump with variable impeller Expired GB1488604A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US439845A US3918831A (en) 1974-02-08 1974-02-08 Centrifugal pump with variable impeller

Publications (1)

Publication Number Publication Date
GB1488604A true GB1488604A (en) 1977-10-12

Family

ID=23746365

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4141/75A Expired GB1488604A (en) 1974-02-08 1975-01-30 Centrifugal pump with variable impeller

Country Status (5)

Country Link
US (1) US3918831A (en)
JP (1) JPS50110103A (en)
CA (1) CA1004082A (en)
DE (1) DE2460282A1 (en)
GB (1) GB1488604A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2226081A (en) * 1988-12-14 1990-06-20 Rolls Royce Plc Fluid friction pump or turbine

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4150916A (en) * 1975-03-13 1979-04-24 Nikkiso Co., Ltd. Axial flow inducers for hydraulic devices
US4070132A (en) * 1976-11-02 1978-01-24 Baltimore Aircoil Company, Inc. Variable performance pump
US4213735A (en) * 1979-02-01 1980-07-22 Chandler Evans Inc. Constant flow centrifugal pump
US4417849A (en) * 1981-09-15 1983-11-29 The United States Of America As Represented By The Secretary Of The Navy Variable geometry centrifugal pump
FR2552168B1 (en) * 1983-09-21 1985-12-20 Dejoux Andre ROTARY PUMP WITH VARIABLE STEP SINGLE PROPELLER
JPS62228699A (en) * 1986-03-31 1987-10-07 Aisin Seiki Co Ltd Water pump
US4828454A (en) * 1986-06-06 1989-05-09 The United States Of America As Represented By The Secretary Of The Navy Variable capacity centrifugal pump
US5211530A (en) * 1992-04-20 1993-05-18 The United States Of America As Represented By The Secretary Of The Navy Variable breadth impeller that provides a specific shutoff head
US5368438A (en) * 1993-06-28 1994-11-29 Baxter International Inc. Blood pump
US5800120A (en) * 1995-11-07 1998-09-01 A. W. Chesterton Co. Pump impeller with adjustable blades
US6139274A (en) * 1998-08-06 2000-10-31 Tcg Unitech Aktiengesellschaft Radial impeller for a centrifugal pump
US6074167A (en) * 1999-02-05 2000-06-13 Woodward Governor Company Variable geometry centrifugal pump
US6364605B1 (en) * 2000-08-25 2002-04-02 Corken, Inc. Regenerative turbine pump
US6419450B1 (en) 2001-05-21 2002-07-16 Grundfos Pumps Manufacturing Corporation Variable width pump impeller
US8267645B2 (en) * 2009-07-31 2012-09-18 Baker Hughes Incorporated Shaftless centrifugal pump
US9874088B2 (en) 2014-08-15 2018-01-23 Baker Hughes, A Ge Company, Llc Wellbore flowmeter
WO2016115641A1 (en) * 2015-01-22 2016-07-28 Litens Automotive Partnership Multi-stage impeller assembly for pump
EP3076020B1 (en) 2015-03-31 2020-12-30 Magna Powertrain FPC Limited Partnership Spring regulated variable flow electric water pump
DE102015119095B4 (en) * 2015-11-06 2019-03-21 Pierburg Gmbh Coolant pump for an internal combustion engine
CA3007469C (en) 2015-12-07 2021-06-29 Fluid Handling Llc Opposed impeller wear ring undercut to offset generated axial thrust in multi-stage pump
US11459958B2 (en) * 2019-03-22 2022-10-04 Pratt & Whitney Canada Corp. Rotodynamic pump having a body defining a body cavity with a first and second housing portion defining a portion of an impeller cavity and disposed within the body cavity wherein the body cavity extends at least in part around the second housing portion and the housing portions defining an impeller clearance

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US180612A (en) * 1876-08-01 Improvement in water-wheels
US2358744A (en) * 1943-09-06 1944-09-19 Ingersoll Rand Co Centrifugal pump
US3788762A (en) * 1972-02-22 1974-01-29 Avco Corp Self-lubricated pump with means for lubricant purification

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2226081A (en) * 1988-12-14 1990-06-20 Rolls Royce Plc Fluid friction pump or turbine

Also Published As

Publication number Publication date
DE2460282A1 (en) 1975-08-14
CA1004082A (en) 1977-01-25
JPS50110103A (en) 1975-08-29
US3918831A (en) 1975-11-11

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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: 19950129