GB1182847A - Fan. - Google Patents

Fan.

Info

Publication number
GB1182847A
GB1182847A GB40249/68A GB4024968A GB1182847A GB 1182847 A GB1182847 A GB 1182847A GB 40249/68 A GB40249/68 A GB 40249/68A GB 4024968 A GB4024968 A GB 4024968A GB 1182847 A GB1182847 A GB 1182847A
Authority
GB
United Kingdom
Prior art keywords
impeller
frame
blades
guide wall
fan
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
GB40249/68A
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.)
Ebm Papst St Georgen GmbH and Co KG
Original Assignee
Papst Motoren GmbH and Co KG
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 Papst Motoren GmbH and Co KG filed Critical Papst Motoren GmbH and Co KG
Publication of GB1182847A publication Critical patent/GB1182847A/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
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
    • 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
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38—Blades
    • F04D29/384—Blades characterised by form
    • 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
    • F04D29/545—Ducts
    • F04D29/547—Ducts having a special shape in order to influence fluid flow

Landscapes

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

Abstract

1,182,847. Axial-flow fans. PAPSTMOTOREN K. G. Aug. 22, 1968 [Aug. 23, 1967], No.40249/68. Heading F1C. A fan driven by an electric motor comprises a frame with an aperture of circular cross-section for the passage of air and at least one spoke supporting the motor, a guide wall of the frame surrounding the air stream, and an impeller within the aperture and having blades projecting upstream of the guide wall axially beyond the guide wall and outside the guide wall in a radial direction freely beyond the diameter of the aperture. The fan shown in Fig. 2 comprises impeller blades 11 carried by the external rotor 10 of the electric driving motor, the motor stator 8 being supported by spokes 6. A frame 3 of square external shape has a circular opening forming a guide wall 3a surrounding the impeller. As shown, the impeller blades 11 extend beyond the frame 3 in an upstream direction, with a maximum diameter 7% greater than the diameter of the circular opening of the frame 3. As shown by arrows, air enters the impeller not only along the front edges of the blades 11 but also along the outer edges 12, whereby 30% more air is drawn into the fan. The impeller blades 11 also extend beyond the frame 3 in a downstream direction and this extension may also have a maximum diameter greater the diameter of the opening in the frame 3. In this case, to enable the impeller to be inserted through the opening, the impeller blades may be made of resilient synthetic material so that they can be deformed during the insertion. Alternatively, the frame 3 may be made in two parts, or the downstream part of the impeller may be a separate member carrying separate blades (19, Fig. 8, not shown), or extensions 20, Fig. 9, may be fastened to the blades 11 either at the downstream end as shown or at the upstream end. The extensions may also be used for balancing the impeller. The guide wall 3a may be continued by a funnel-shaped ring 3b, with rings 3c to subdivide the flow. The leading edge of each blade 11 may be inclined backwardly or forwardly in relation to a radial plane through the impeller axis. The motor may be reversed in position, with the supporting spokes 6 at the inlet end of the fan.
GB40249/68A 1967-08-23 1968-08-22 Fan. Expired GB1182847A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1628353 1967-08-23

Publications (1)

Publication Number Publication Date
GB1182847A true GB1182847A (en) 1970-03-04

Family

ID=5683157

Family Applications (1)

Application Number Title Priority Date Filing Date
GB40249/68A Expired GB1182847A (en) 1967-08-23 1968-08-22 Fan.

Country Status (4)

Country Link
US (1) US3531221A (en)
JP (1) JPS4818526B1 (en)
FR (1) FR1576254A (en)
GB (1) GB1182847A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133082A (en) * 1982-11-09 1984-07-18 Papst Motoren Gmbh & Co Kg Miniaturized direct current fan
CN110869618A (en) * 2017-07-11 2020-03-06 日本电产株式会社 Air supply device

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH611983A5 (en) * 1974-11-18 1979-06-29 Papst Motoren Kg
DE2940650A1 (en) * 1979-10-06 1981-04-16 Papst-Motoren Kg, 7742 St Georgen AXIAL FAN
US4564335A (en) * 1979-10-06 1986-01-14 Papst-Motoren Gmbh & Co. Kg Axial flow fan
US4460312A (en) * 1980-04-09 1984-07-17 Iem Ltd. Fan unit
CH654379A5 (en) * 1981-05-29 1986-02-14 Papst Motoren Kg SMALL BLOWER.
JPS59145396A (en) * 1982-11-09 1984-08-20 パプスト・モ−ト−レン・ゲ−エムベ−ハ−・ウント・コ−・カ−ゲ− Direct current small-sized ventilator
JPS59185898A (en) * 1983-04-08 1984-10-22 Aisin Seiki Co Ltd Fan blade
US4712977A (en) * 1984-07-02 1987-12-15 Gerfast Sten R Axial fan
JPS63124900A (en) * 1986-11-14 1988-05-28 Yasuaki Kohama Axial blower
EP1211426B1 (en) 2000-12-01 2006-06-07 ebm-papst St. Georgen GmbH & Co. KG Fan housing in particular for axial fan
TW540641U (en) * 2002-04-30 2003-07-01 Delta Electronics Inc Axial-flow fan with characteristics of increasing faxial-flow fan with characteristics of increasing flowing pressure and flowing amount of airflow
US7334988B2 (en) * 2003-08-19 2008-02-26 Sunonwealth Electric Machine Industry Co., Ltd. Airflow guiding structure varying in inclinations of air-guiding rings for a heat-dissipating fan
TWI236520B (en) * 2004-02-18 2005-07-21 Delta Electronics Inc Axial flow fan
TWM292888U (en) * 2005-12-30 2006-06-21 Sheng-An Yang Heat-dissipating fan
US20100247344A1 (en) * 2006-12-18 2010-09-30 Sheng-An Yang Heat dissipating fan
TWM423280U (en) * 2011-05-26 2012-02-21 Delta Electronics Inc Fan
TWM425950U (en) * 2011-08-29 2012-04-01 Zhen-Ming Su Improved fan cover structure of electric fan
US20130189129A1 (en) * 2012-01-23 2013-07-25 Lasko Holdings, Inc. Low Noise Air Movement Generator
GB2539131B (en) 2014-03-27 2018-11-28 Trane Int Inc Diffuser collar for a condenser fan in an HVAC system
JP2018159371A (en) * 2017-03-24 2018-10-11 パナソニックＩｐマネジメント株式会社 Air blower
US20200232468A1 (en) * 2019-01-18 2020-07-23 Asia Vital Components Co., Ltd. Fan frame structure

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US921744A (en) * 1908-05-12 1909-05-18 William D Scott Ventilating-fan for mines.
DE424680C (en) * 1924-01-01 1926-02-11 Theodor Froehlich Fa Screw fan system
US2435645A (en) * 1945-08-23 1948-02-10 Westinghouse Electric Corp Axial flow fan
US2936948A (en) * 1954-10-15 1960-05-17 Eck Bruno Christian Axial blower with cone-shaped hub
GB1043213A (en) * 1963-01-14 1966-09-21 Papst Hermann Ventilating fans driven by electric motors
US3385516A (en) * 1966-03-31 1968-05-28 Gen Electric Fan construction

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133082A (en) * 1982-11-09 1984-07-18 Papst Motoren Gmbh & Co Kg Miniaturized direct current fan
CN110869618A (en) * 2017-07-11 2020-03-06 日本电产株式会社 Air supply device

Also Published As

Publication number Publication date
FR1576254A (en) 1969-07-25
US3531221A (en) 1970-09-29
JPS4818526B1 (en) 1973-06-06

Similar Documents

Publication Publication Date Title
GB1182847A (en) Fan.
GB1060926A (en) Fan motor cooling arrangement
GB1279912A (en) Centrifugal fan
GB1171001A (en) Axial Flow Propeller Fan.
GB792369A (en) Improvements in axial flow fans
GB1033502A (en) Mixed flow blowers
GB1454630A (en) Axial-flow fan
GB1094125A (en) Improvements in or relating to ventilators
GB1178230A (en) Ventilating fan unit.
GB849744A (en) Improvements in fans
GB983469A (en) Axial flow fan
GB954369A (en) Drum-type fan rotor with forwardly curved blades
US3189260A (en) Axial blower
US3574480A (en) Semiaxial fan rotor
GB1363525A (en) Blower assembly
GB810909A (en) Centrifugal blowers
FR2292129A1 (en) Windmill with enclosed rotor - directs wind through tapered inlet to rotor shielding lower blades
GB858640A (en) Ventilating motor and fan
GB584657A (en) Improvements in or relating to axial flow screw fans and the like
GB1271782A (en) Improvements in or relating to fans
GB1129370A (en) Improvements in or relating to a radial flow fan wheel
GB1105320A (en) Improvements in or relating to heating and/or ventilating apparatus for vehicles
GB796696A (en) Improvements in or relating to centrifugal fans
GB1107270A (en) Improvements in and relating to a centrifugal fan comprising a drum impeller
US2956736A (en) Centrifugal fans

Legal Events

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