GB733533A - Improvements in or relating to centrifugal blowers, compressors, pumps and the like - Google Patents

Improvements in or relating to centrifugal blowers, compressors, pumps and the like

Info

Publication number
GB733533A
GB733533A GB19548/53A GB1954853A GB733533A GB 733533 A GB733533 A GB 733533A GB 19548/53 A GB19548/53 A GB 19548/53A GB 1954853 A GB1954853 A GB 1954853A GB 733533 A GB733533 A GB 733533A
Authority
GB
United Kingdom
Prior art keywords
diffuser
impeller
intake
blades
volute
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
GB19548/53A
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.)
Neu SA
Original Assignee
Neu SA
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 Neu SA filed Critical Neu SA
Publication of GB733533A publication Critical patent/GB733533A/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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/288—Part of the wheel having an ejecting effect, e.g. being bladeless diffuser
    • 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
    • F04D29/2238—Special flow patterns
    • F04D29/2255—Special flow patterns flow-channels with a special cross-section contour, e.g. ejecting, throttling or diffusing effect
    • 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
    • F04D29/442—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps rotating diffusers

Landscapes

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

Abstract

733,533. Centrifugal pumps &c. SOC. ANON. DES ETABLISSEMENTS NEU. July 14, 1953 [Aug. 26, 1952], No. 19548/53. Class 110(1). In a centrifugal blower, compressor or pump, the impeller blades 2, Figs. 1 and 2, are enclosed between discs 3, 4 extending beyond the blades to form a rotary diffuser 5, and the impeller is contained in a volute 6, the sides 7, 8 of which are spaced from the discs by between one and two times the outlet width of the diffuser. Vortices are induced in the lateral spaces 11, 12 by friction and are stated to increase the pressure at low outputs. In addition, the pressure at the clearances 13, 14 is reduced, obviating the need for labyrinth packings. To reduce pumping action, the usual cut-off 18 is replaced by a curved portion 17, with a radius of the order of about <SP>1</SP>/ 10 of the radius of the impeller or the rotary diffuser. Instead of being rectangular, the cross-section of the volute may be circular or trapezoidal. The impeller blades, which may be of aerofoil or of laminar form, may each comprise an intake portion 42, Fig. 6, of cylindrical form with its axis disposed in the radial direction, merging tangentially at 44 into a flat portion 40. The impeller may be of the double-intake type, with either a single diffuser or a separate diffuser for each intake.
GB19548/53A 1952-08-26 1953-07-14 Improvements in or relating to centrifugal blowers, compressors, pumps and the like Expired GB733533A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE733533X 1952-08-26

Publications (1)

Publication Number Publication Date
GB733533A true GB733533A (en) 1955-07-13

Family

ID=6640760

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19548/53A Expired GB733533A (en) 1952-08-26 1953-07-14 Improvements in or relating to centrifugal blowers, compressors, pumps and the like

Country Status (1)

Country Link
GB (1) GB733533A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1145927B (en) * 1956-10-25 1963-03-21 Eta Corp G M B H Centrifugal wheel for pumps, blowers or the like with side blade limits narrowed to a nozzle in the meridional section
US3197124A (en) * 1962-04-03 1965-07-27 Sallou Jean Centrifugal pump impellers
US3229898A (en) * 1964-05-11 1966-01-18 Marvin D Shafer Power ventilator
US3824029A (en) * 1971-04-13 1974-07-16 Cit Alcatel Centrifugal supersonic compressor
FR2441722A1 (en) * 1978-11-16 1980-06-13 Sueddeutsche Kuehler Behr COOLING SYSTEM FOR INTERNAL COMBUSTION ENGINES, PARTICULARLY FOR VEHICLE ENGINES
EP0038597A1 (en) * 1980-04-23 1981-10-28 Shell Internationale Researchmaatschappij B.V. Centrifugal pump for feeding solid particles to a pressurized vessel and process for feeding solid fuel to a high pressure gasification reactor
US5352089A (en) * 1992-02-19 1994-10-04 Nippondenso Co., Ltd. Multi-blades fan device
CN100404878C (en) * 2003-06-05 2008-07-23 星光化工机株式会社 Centrifugal blower
US9157441B2 (en) 2011-10-20 2015-10-13 Henkel IP & Holding GmbH Double inlet centrifugal blower with peripheral motor
US9574568B2 (en) 2011-10-20 2017-02-21 Henkel IP & Holding GmbH Double inlet centrifugal blower with a solid center plate
US10655640B1 (en) 2011-10-20 2020-05-19 Lti Holdings, Inc. Double inlet centrifugal blower with PCB center plate

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1145927B (en) * 1956-10-25 1963-03-21 Eta Corp G M B H Centrifugal wheel for pumps, blowers or the like with side blade limits narrowed to a nozzle in the meridional section
US3197124A (en) * 1962-04-03 1965-07-27 Sallou Jean Centrifugal pump impellers
US3229898A (en) * 1964-05-11 1966-01-18 Marvin D Shafer Power ventilator
US3824029A (en) * 1971-04-13 1974-07-16 Cit Alcatel Centrifugal supersonic compressor
FR2441722A1 (en) * 1978-11-16 1980-06-13 Sueddeutsche Kuehler Behr COOLING SYSTEM FOR INTERNAL COMBUSTION ENGINES, PARTICULARLY FOR VEHICLE ENGINES
EP0038597A1 (en) * 1980-04-23 1981-10-28 Shell Internationale Researchmaatschappij B.V. Centrifugal pump for feeding solid particles to a pressurized vessel and process for feeding solid fuel to a high pressure gasification reactor
US5352089A (en) * 1992-02-19 1994-10-04 Nippondenso Co., Ltd. Multi-blades fan device
US5511939A (en) * 1992-02-19 1996-04-30 Nippondenso Co., Ltd. Multi-blades fan device
CN100404878C (en) * 2003-06-05 2008-07-23 星光化工机株式会社 Centrifugal blower
US9157441B2 (en) 2011-10-20 2015-10-13 Henkel IP & Holding GmbH Double inlet centrifugal blower with peripheral motor
US9574568B2 (en) 2011-10-20 2017-02-21 Henkel IP & Holding GmbH Double inlet centrifugal blower with a solid center plate
US10655640B1 (en) 2011-10-20 2020-05-19 Lti Holdings, Inc. Double inlet centrifugal blower with PCB center plate

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