GB488781A - Improvements in or relating to centrifugal fans - Google Patents

Improvements in or relating to centrifugal fans

Info

Publication number
GB488781A
GB488781A GB919738A GB919738A GB488781A GB 488781 A GB488781 A GB 488781A GB 919738 A GB919738 A GB 919738A GB 919738 A GB919738 A GB 919738A GB 488781 A GB488781 A GB 488781A
Authority
GB
United Kingdom
Prior art keywords
centrifugal fans
side plate
relating
revolution
plate
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
GB919738A
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.)
BF Sturtevant Co
Original Assignee
BF Sturtevant Co
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 BF Sturtevant Co filed Critical BF Sturtevant Co
Priority to GB919738A priority Critical patent/GB488781A/en
Publication of GB488781A publication Critical patent/GB488781A/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
    • F04D29/30—Vanes

Landscapes

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

Abstract

488,781. Centrifugal fans. STEVENS, A. H. (Sturtevant Co., B. F.) March 25, 1938, No. 9197. [Class 110 (i)] Centrifugal fans have a plurality of inclined blades 10, Fig. 2, with straight outer edges 14 in contact with a curved side plate 13. The contact portion of plate 13 is formed as a surface of a hyperboloid of revolution, and is continued as a lip 13a to co-operate with the inlet 12. The blades are carried by a back plate 11. The curvature 20, Fig. 6, of the side plate is produced by the revolution, about an axis 22 but spaced therefrom, of a line 21 representing the edge 14 which therefore contacts with the side plate along its entire length.
GB919738A 1938-03-25 1938-03-25 Improvements in or relating to centrifugal fans Expired GB488781A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB919738A GB488781A (en) 1938-03-25 1938-03-25 Improvements in or relating to centrifugal fans

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB919738A GB488781A (en) 1938-03-25 1938-03-25 Improvements in or relating to centrifugal fans

Publications (1)

Publication Number Publication Date
GB488781A true GB488781A (en) 1938-07-13

Family

ID=9867266

Family Applications (1)

Application Number Title Priority Date Filing Date
GB919738A Expired GB488781A (en) 1938-03-25 1938-03-25 Improvements in or relating to centrifugal fans

Country Status (1)

Country Link
GB (1) GB488781A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9636617B2 (en) 2014-02-18 2017-05-02 Blueair Ab Air purifier device with fan duct
US9694369B2 (en) 2014-02-18 2017-07-04 Blueair Ab Air purifier device with ionizing means
US9919252B2 (en) 2014-02-18 2018-03-20 Blueair Ab Air purifier device with coupling mechanism

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9636617B2 (en) 2014-02-18 2017-05-02 Blueair Ab Air purifier device with fan duct
US9694369B2 (en) 2014-02-18 2017-07-04 Blueair Ab Air purifier device with ionizing means
US9919252B2 (en) 2014-02-18 2018-03-20 Blueair Ab Air purifier device with coupling mechanism

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