GB631231A - Improvements relating to cased screw fans - Google Patents

Improvements relating to cased screw fans

Info

Publication number
GB631231A
GB631231A GB32554/47A GB3255447A GB631231A GB 631231 A GB631231 A GB 631231A GB 32554/47 A GB32554/47 A GB 32554/47A GB 3255447 A GB3255447 A GB 3255447A GB 631231 A GB631231 A GB 631231A
Authority
GB
United Kingdom
Prior art keywords
vanes
improvements relating
screw fans
edges
guide vanes
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
GB32554/47A
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.)
AEREX Ltd
FRANK SHULTESS HAIGH
Original Assignee
AEREX Ltd
FRANK SHULTESS HAIGH
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 AEREX Ltd, FRANK SHULTESS HAIGH filed Critical AEREX Ltd
Priority to GB32554/47A priority Critical patent/GB631231A/en
Publication of GB631231A publication Critical patent/GB631231A/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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F04D29/542—Bladed diffusers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D9/00—Stators
    • F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
    • F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
    • F01D9/042—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector fixing blades to stators
    • 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
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F04D29/542—Bladed diffusers
    • F04D29/544—Blade shapes

Landscapes

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

Abstract

631,231. Screw fans. AEREX, Ltd., REEVES, H. C., and HAIGH, F. S. Dec. 10, 1947, No. 32554. [Class 110(i)] The delivery guide vanes a have straight leading edges d which in a radially outward direction are inclined rearwardly relatively to the direction of rotation of the impeller. The vanes are of laminar section, rounded at the leading edge and tapered at the trailing edge. Alternatively, they may be of solid or hollow aerofoil shape. The vanes are attached at their outer and inner ends to the casing and fairing respectively, either by eyed lugs or by welding. The trailing edges of the impeller blades b and the leading edges d of the guide vanes are oppositely inclined, so that they pass each other progressively, thus reducing noise due to syren effect.
GB32554/47A 1947-12-10 1947-12-10 Improvements relating to cased screw fans Expired GB631231A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB32554/47A GB631231A (en) 1947-12-10 1947-12-10 Improvements relating to cased screw fans

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB32554/47A GB631231A (en) 1947-12-10 1947-12-10 Improvements relating to cased screw fans

Publications (1)

Publication Number Publication Date
GB631231A true GB631231A (en) 1949-10-28

Family

ID=10340417

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32554/47A Expired GB631231A (en) 1947-12-10 1947-12-10 Improvements relating to cased screw fans

Country Status (1)

Country Link
GB (1) GB631231A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3012709A (en) * 1955-05-18 1961-12-12 Daimler Benz Ag Blade for axial compressors
US3300123A (en) * 1964-05-29 1967-01-24 Ventilator A G Vane for an axial ventilator and method for producing the same
US3764225A (en) * 1970-05-27 1973-10-09 Bbc Brown Boveri & Cie Technique and blade arrangement to reduce the serpentine motion of a mass particle flowing through a turbomachine
US3995970A (en) * 1974-09-10 1976-12-07 Mitsubishi Jukogyo Kabushiki Kaisha Axial-flow fan
US4131387A (en) * 1976-02-27 1978-12-26 General Electric Company Curved blade turbomachinery noise reduction
EP1369595A3 (en) * 2002-06-03 2004-09-08 Hans Güntner GmbH Stator for fans, particularly for air coolers
WO2013017577A3 (en) * 2011-08-04 2013-07-25 Novenco A/S An axial blower

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3012709A (en) * 1955-05-18 1961-12-12 Daimler Benz Ag Blade for axial compressors
US3300123A (en) * 1964-05-29 1967-01-24 Ventilator A G Vane for an axial ventilator and method for producing the same
US3764225A (en) * 1970-05-27 1973-10-09 Bbc Brown Boveri & Cie Technique and blade arrangement to reduce the serpentine motion of a mass particle flowing through a turbomachine
US3995970A (en) * 1974-09-10 1976-12-07 Mitsubishi Jukogyo Kabushiki Kaisha Axial-flow fan
US4131387A (en) * 1976-02-27 1978-12-26 General Electric Company Curved blade turbomachinery noise reduction
EP1369595A3 (en) * 2002-06-03 2004-09-08 Hans Güntner GmbH Stator for fans, particularly for air coolers
WO2013017577A3 (en) * 2011-08-04 2013-07-25 Novenco A/S An axial blower
CN103717909A (en) * 2011-08-04 2014-04-09 诺克有限公司 An axial blower
US9926943B2 (en) 2011-08-04 2018-03-27 Novenco A/S Axial blower

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