SE309082B - - Google Patents

Info

Publication number
SE309082B
SE309082B SE939465A SE939465A SE309082B SE 309082 B SE309082 B SE 309082B SE 939465 A SE939465 A SE 939465A SE 939465 A SE939465 A SE 939465A SE 309082 B SE309082 B SE 309082B
Authority
SE
Sweden
Prior art keywords
length
blade
blades
impeller
main
Prior art date
Application number
SE939465A
Inventor
A Josefsson
Original Assignee
Bahco Ab
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 Bahco Ab filed Critical Bahco Ab
Priority to SE939465A priority Critical patent/SE309082B/xx
Priority to NO16388066A priority patent/NO119036B/no
Priority to FI185266A priority patent/FI42741C/en
Priority to BE684071D priority patent/BE684071A/xx
Priority to DE19661628190 priority patent/DE1628190A1/en
Priority to DK365966A priority patent/DK121774B/en
Priority to GB3197566A priority patent/GB1129370A/en
Publication of SE309082B publication Critical patent/SE309082B/xx

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
    • 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
    • F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers

Landscapes

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

Abstract

1,129,370. Centrifugal fans. BAHCO AB. July 15, 1966 [July 15, 1965], No. 31975/66. Heading F1C. In a centrifugal fan impeller having less than sixteen blades of full length, each channel formed between the blades is provided with at least one short blade uniformly dividing a portion of the channel into partial channels, each short blade being 40% to 80% (preferably 50% to 70%) as long as a main blade and having its outer edge located at a radical distance from the impeller axis less than that of the outer edge of a main blade and its inner edge spaced from the impeller axis by a radial distance equal to or greater than that of the inner edge of a main blade. This increases the efficiency and reduces the noise. In the case of curved blades, the length measured is the chordal length. Where the main blades are continued radially inwards and attached to the impeller hub, the length considered is the length (or chordal length) of the blade portion lying outside the impeller eye.
SE939465A 1965-07-15 1965-07-15 SE309082B (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
SE939465A SE309082B (en) 1965-07-15 1965-07-15
NO16388066A NO119036B (en) 1965-07-15 1966-07-11
FI185266A FI42741C (en) 1965-07-15 1966-07-11 The device radiates on the fan wheel
BE684071D BE684071A (en) 1965-07-15 1966-07-13
DE19661628190 DE1628190A1 (en) 1965-07-15 1966-07-14 Impeller for radial fan
DK365966A DK121774B (en) 1965-07-15 1966-07-14 Radial fan wheel.
GB3197566A GB1129370A (en) 1965-07-15 1966-07-15 Improvements in or relating to a radial flow fan wheel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE939465A SE309082B (en) 1965-07-15 1965-07-15

Publications (1)

Publication Number Publication Date
SE309082B true SE309082B (en) 1969-03-10

Family

ID=20276570

Family Applications (1)

Application Number Title Priority Date Filing Date
SE939465A SE309082B (en) 1965-07-15 1965-07-15

Country Status (7)

Country Link
BE (1) BE684071A (en)
DE (1) DE1628190A1 (en)
DK (1) DK121774B (en)
FI (1) FI42741C (en)
GB (1) GB1129370A (en)
NO (1) NO119036B (en)
SE (1) SE309082B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4904158A (en) * 1988-08-18 1990-02-27 Union Carbide Corporation Method and apparatus for cryogenic liquid expansion
DE202004012015U1 (en) 2004-07-31 2005-12-22 Ebm-Papst Landshut Gmbh radial impeller
FR2874241A1 (en) * 2004-08-16 2006-02-17 Max Sardou Centrifugal impeller for pump and centrifugal blower, has hub and ring including trailing edge radii greater than trailing edge radii of truncated blade for closing of slipstream and detent of circulating fluid
US8997486B2 (en) * 2012-03-23 2015-04-07 Bullseye Power LLC Compressor wheel
JP6295009B2 (en) * 2015-03-26 2018-03-14 三菱重工業株式会社 Turbine blade and variable capacity turbine
JP2018040275A (en) * 2016-09-06 2018-03-15 株式会社 ソーシン Turbo pump
CN107869033B (en) * 2016-09-26 2020-10-02 青岛胶南海尔洗衣机有限公司 Forward and reverse rotating fan for clothes dryer and clothes dryer
CN108953223B (en) * 2018-08-16 2021-02-12 泛仕达机电股份有限公司 Centrifugal impeller
CN109989943B (en) * 2019-04-18 2021-06-22 江苏大学 Design method of multi-stage pump reverse guide vane splitter blade

Also Published As

Publication number Publication date
DK121774B (en) 1971-11-29
DE1628190A1 (en) 1970-04-23
GB1129370A (en) 1968-10-02
FI42741B (en) 1970-06-30
NO119036B (en) 1970-03-16
FI42741C (en) 1970-10-12
BE684071A (en) 1966-12-16

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