GB190928866A - Improvements in Multiple Centrifugal Fans. - Google Patents

Improvements in Multiple Centrifugal Fans.

Info

Publication number
GB190928866A
GB190928866A GB190928866DA GB190928866A GB 190928866 A GB190928866 A GB 190928866A GB 190928866D A GB190928866D A GB 190928866DA GB 190928866 A GB190928866 A GB 190928866A
Authority
GB
United Kingdom
Prior art keywords
impellers
fitted
centrifugal fans
stage
similar
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
Inventor
Edmund Allday
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of GB190928866A publication Critical patent/GB190928866A/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
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/16—Centrifugal pumps for displacing without appreciable compression
    • F04D17/164—Multi-stage fans, e.g. for vacuum cleaners

Landscapes

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

Abstract

28,866. Allday, E. Dec. 10. Multi-stage centrifugal fans; balancing moving parts; casings.-A multi-stage fan is built up of a number of similar sections supported on a frame d on a motor casing h and fitted with an end plate c provided with an inverted annular trough of increasing depth terminating in an endwise exit opening c<2>. The impellers have teeth or similar engaging portions on the hubs so that the whole set rotate as one. By this means the impellers may be arranged so that there is no resultant centrifugal force. Alternatively each impeller may be constructed as described in Specification 8672/09, and keyed to the shaft. Each section is fitted to the next by a bead a<4> and has an internal oblique flange a<1> provided with usual vanes a<3>.
GB190928866D 1909-12-10 1909-12-10 Improvements in Multiple Centrifugal Fans. Expired GB190928866A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190928866T 1909-12-10

Publications (1)

Publication Number Publication Date
GB190928866A true GB190928866A (en) 1910-11-03

Family

ID=32447363

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190928866D Expired GB190928866A (en) 1909-12-10 1909-12-10 Improvements in Multiple Centrifugal Fans.

Country Status (1)

Country Link
GB (1) GB190928866A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2970234A (en) * 1958-01-24 1961-01-31 Westinghouse Electric Corp Ventilating system for a dynamo-electric machine
EP0797004A1 (en) * 1996-03-23 1997-09-24 Pierburg Aktiengesellschaft Electric motor driven air pump

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2970234A (en) * 1958-01-24 1961-01-31 Westinghouse Electric Corp Ventilating system for a dynamo-electric machine
EP0797004A1 (en) * 1996-03-23 1997-09-24 Pierburg Aktiengesellschaft Electric motor driven air pump
US5797727A (en) * 1996-03-23 1998-08-25 Pierburg Ag Impeller mounting for electrically driven air pump to reduce vibration

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