GB1271808A - Centrifugal fan - Google Patents

Centrifugal fan

Info

Publication number
GB1271808A
GB1271808A GB57356/69A GB5735669A GB1271808A GB 1271808 A GB1271808 A GB 1271808A GB 57356/69 A GB57356/69 A GB 57356/69A GB 5735669 A GB5735669 A GB 5735669A GB 1271808 A GB1271808 A GB 1271808A
Authority
GB
United Kingdom
Prior art keywords
housing
air
centrifugal fan
wall
impeller
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
GB57356/69A
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.)
Electrolux Household Appliances Ltd
Original Assignee
Electrolux Ltd
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 Electrolux Ltd filed Critical Electrolux Ltd
Publication of GB1271808A publication Critical patent/GB1271808A/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
    • F04D29/42—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
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • 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
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations

Landscapes

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

Abstract

1,271,808. Centrifugal fans. ELECTROLUX Ltd. Nov. 24, 1969 [Dec. 20, 1968], No.57356/69. Heading F1C. [Also in Division A4] A centrifugal fan unit has one or more stages each including a housing having an axial outlet and containing an impeller 13 which delivers air to the outlet via an annular passage formed between the housing and the periphery of wall 14, and via a coiled spring-shaped element 18. Substantially the whole of the air delivered by the impeller passes through the turns of the element 18 so that the air-flow slows down and thereby increases in pressure. The element may be arranged in several windings around the axial outlet. Stationary radial guide vanes may be arranged between the wall 14 and the housing.
GB57356/69A 1968-12-20 1969-11-24 Centrifugal fan Expired GB1271808A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE17526/68A SE330061B (en) 1968-12-20 1968-12-20

Publications (1)

Publication Number Publication Date
GB1271808A true GB1271808A (en) 1972-04-26

Family

ID=20303704

Family Applications (1)

Application Number Title Priority Date Filing Date
GB57356/69A Expired GB1271808A (en) 1968-12-20 1969-11-24 Centrifugal fan

Country Status (8)

Country Link
US (1) US3628882A (en)
CH (1) CH505298A (en)
DE (1) DE6942947U (en)
DK (1) DK125109B (en)
FR (1) FR2026620A1 (en)
GB (1) GB1271808A (en)
NL (1) NL160915C (en)
SE (1) SE330061B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4798518A (en) * 1982-03-09 1989-01-17 Wilhelm Gebhardt Gmbh Fan unit for use with duct systems
WO2007134405A1 (en) * 2006-05-24 2007-11-29 Resmed Ltd Compact low noise efficient blower for cpap devices

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3028606A1 (en) * 1980-07-28 1982-03-04 Wilhelm Gebhardt Gmbh, 7112 Waldenburg FOR INSTALLATION IN PIPELINES, CHANNELS OR CHANNEL-LIKE HOUSINGS OR. FAN UNIT DETERMINED IN VENTILATION AND AIR CONDITIONING
US4749332A (en) * 1982-04-21 1988-06-07 General Electric Company Method and apparatus for degrading antimisting fuel
US5296769A (en) * 1992-01-24 1994-03-22 Electrolux Corporation Air guide assembly for an electric motor and methods of making
EP3992565B1 (en) * 2020-10-28 2024-03-13 B/E Aerospace, Inc. Heat exchanger manifold

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1361107A (en) * 1920-12-07 Centrifugal fltjid-pressure-generating apparatus
DE499586C (en) * 1930-06-10 Aeg Device for dampening the noise of the air exiting vacuum cleaners
GB190629457A (en) * 1906-12-27 1907-10-10 Louis Bertram Cousans Improvements in Centrifugal Fans.
US993985A (en) * 1909-09-07 1911-05-30 Electric Renovator Mfg Co Pneumatic pumping-machine.
US1991529A (en) * 1930-05-17 1935-02-19 Charles M Veach Centrifugal pump
NL35012C (en) * 1932-07-05
FR971515A (en) * 1940-09-03 1951-01-18 Pierre Remy & Cie Ets Centrifugal compressor-scrubber for gasifiers
US2744466A (en) * 1952-09-25 1956-05-08 Thompson Prod Inc Pump inlet guard

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4798518A (en) * 1982-03-09 1989-01-17 Wilhelm Gebhardt Gmbh Fan unit for use with duct systems
WO2007134405A1 (en) * 2006-05-24 2007-11-29 Resmed Ltd Compact low noise efficient blower for cpap devices
CN101449064A (en) * 2006-05-24 2009-06-03 雷斯梅德有限公司 Compact low noise efficient blower for CPAP devices
US7866944B2 (en) 2006-05-24 2011-01-11 Resmed Motor Technologies Inc Compact low noise efficient blower for CPAP devices
US8267648B2 (en) 2006-05-24 2012-09-18 Resmed Motor Technologies Inc. Compact low noise efficient blower for CPAP devices
CN101449064B (en) * 2006-05-24 2013-04-03 雷斯梅德电动科技有限公司 Compact low noise efficient blower for CPAP devices
CN103174661A (en) * 2006-05-24 2013-06-26 雷斯梅德电动科技有限公司 Compact low noise efficient blower for cpap devices
US8734097B2 (en) 2006-05-24 2014-05-27 Resmed Motor Technologies Inc Compact low noise efficient blower for CPAP devices
CN103174661B (en) * 2006-05-24 2015-10-28 瑞思迈发动机及马达技术股份有限公司 For the compact low noise efficient blower of CPAP device
US9677563B2 (en) 2006-05-24 2017-06-13 Resmed Motor Technologies Inc. Compact low noise efficient blower for CPAP devices
US10605246B2 (en) 2006-05-24 2020-03-31 Resmed Motor Technologies Inc. Compact low noise efficient blower for CPAP devices
US11353030B2 (en) 2006-05-24 2022-06-07 Resmed Motor Technologies Inc. Compact low noise efficient blower for CPAP devices
US11892000B2 (en) 2006-05-24 2024-02-06 Resmed Motor Technologies Inc. Compact low noise efficient blower for CPAP devices

Also Published As

Publication number Publication date
DE6942947U (en) 1973-06-20
CH505298A (en) 1971-03-31
NL160915B (en) 1979-07-16
NL160915C (en) 1979-12-17
US3628882A (en) 1971-12-21
FR2026620A1 (en) 1970-09-18
DE1955585A1 (en) 1970-06-25
NL6917313A (en) 1970-06-23
DK125109B (en) 1972-12-27
SE330061B (en) 1970-11-02
DE1955585B2 (en) 1972-08-24

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years