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GB811849A - Improvements relating to pump impellers - Google Patents

Improvements relating to pump impellers

Info

Publication number
GB811849A
GB811849A GB22710/55A GB2271055A GB811849A GB 811849 A GB811849 A GB 811849A GB 22710/55 A GB22710/55 A GB 22710/55A GB 2271055 A GB2271055 A GB 2271055A GB 811849 A GB811849 A GB 811849A
Authority
GB
United Kingdom
Prior art keywords
impeller
apex
inch
trailing
aug
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
GB22710/55A
Inventor
John Garfield Davies
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.)
Parkinson Cowan Ltd
Parkinson Cowan Appliances Ltd
Original Assignee
Parkinson Cowan Ltd
Parkinson Cowan Appliances 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
Application filed by Parkinson Cowan Ltd, Parkinson Cowan Appliances Ltd filed Critical Parkinson Cowan Ltd
Priority to GB22710/55A priority Critical patent/GB811849A/en
Publication of GB811849A publication Critical patent/GB811849A/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
    • F04D29/2205—Conventional flow pattern
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/083—Liquid discharge or recirculation arrangements
    • D06F39/085—Arrangements or adaptations of pumps
    • 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
    • F04D29/2205—Conventional flow pattern
    • F04D29/2222—Construction and assembly

Landscapes

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

Abstract

811,849. Centrifugal pumps. PARKINSON COWAN Ltd., [formerly PARKINSON & COWAN Ltd.]. Aug. 2, 1956 [Aug. 6, 1955], No. 22710/55. Class 110 (1). A closed impeller of a centrifugal pump comprises widely-spaced blades the leading and trailing faces of which meet in a rounded apex and diverge towards the periphery of the impeller, the trailing face being straight and, at least near the apex, substantially tangential to a circle struck from the centre of the impeller. A centrifugal pump for a washing machine comprises an impeller having widely spaced blades 23, Fig. 4, with straight leading and trailing faces 26, 27 which subtend an angle of 25 to 90 degrees, but preferably 30 to 45 degrees, at the apex 30, which has a radius of curvature of 1/18 to 5/16 inch, but preferably 3/16 inch, for impeller diameters greater than 4 inch, or 0.03 to 0.06 of the impeller diameter for smaller diameters. The blade passages increase in cross-sectional area radially outwardly and are of constant or increasing cross-sectional dimension as viewed in Fig. 3. These features reduce the tendency to clogging by the accumulation of fibres. Preferably the apex 30 extends, as shown, in the direction of rotation beyond a radius normal to the trailing edge 27. The impeller is formed from two die-castings fastened together by integral rivets 29.
GB22710/55A 1955-08-06 1955-08-06 Improvements relating to pump impellers Expired GB811849A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB22710/55A GB811849A (en) 1955-08-06 1955-08-06 Improvements relating to pump impellers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB22710/55A GB811849A (en) 1955-08-06 1955-08-06 Improvements relating to pump impellers

Publications (1)

Publication Number Publication Date
GB811849A true GB811849A (en) 1959-04-15

Family

ID=10183861

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22710/55A Expired GB811849A (en) 1955-08-06 1955-08-06 Improvements relating to pump impellers

Country Status (1)

Country Link
GB (1) GB811849A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3340813A (en) * 1965-06-11 1967-09-12 Itt Centrifugal pumps
US3358608A (en) * 1965-08-10 1967-12-19 Sta Rite Industries Pump
US3366068A (en) * 1965-09-13 1968-01-30 Smedegaard As Fluid circulation pump
US3536412A (en) * 1969-04-17 1970-10-27 Fedders Corp Single bearing pump
DE3332875A1 (en) * 1983-09-12 1985-03-28 Siemens AG, 1000 Berlin und 8000 München Radial impeller for flow machines
US9682348B2 (en) 2011-12-06 2017-06-20 Enevor Inc. Impeller apparatus and dispersion method
US9863423B2 (en) 2014-04-14 2018-01-09 Enevor Inc. Conical impeller and applications thereof

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3340813A (en) * 1965-06-11 1967-09-12 Itt Centrifugal pumps
US3358608A (en) * 1965-08-10 1967-12-19 Sta Rite Industries Pump
US3366068A (en) * 1965-09-13 1968-01-30 Smedegaard As Fluid circulation pump
US3536412A (en) * 1969-04-17 1970-10-27 Fedders Corp Single bearing pump
DE3332875A1 (en) * 1983-09-12 1985-03-28 Siemens AG, 1000 Berlin und 8000 München Radial impeller for flow machines
US9682348B2 (en) 2011-12-06 2017-06-20 Enevor Inc. Impeller apparatus and dispersion method
US9863423B2 (en) 2014-04-14 2018-01-09 Enevor Inc. Conical impeller and applications thereof

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