GB1171001A - Axial Flow Propeller Fan. - Google Patents

Axial Flow Propeller Fan.

Info

Publication number
GB1171001A
GB1171001A GB024/67A GB12467A GB1171001A GB 1171001 A GB1171001 A GB 1171001A GB 024/67 A GB024/67 A GB 024/67A GB 12467 A GB12467 A GB 12467A GB 1171001 A GB1171001 A GB 1171001A
Authority
GB
United Kingdom
Prior art keywords
flow
internal surface
flow path
hub
air
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
GB024/67A
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.)
Rotron Inc
Original Assignee
Rotron Inc
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 Rotron Inc filed Critical Rotron Inc
Publication of GB1171001A publication Critical patent/GB1171001A/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
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow 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
    • F04D29/26—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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S416/00—Fluid reaction surfaces, i.e. impellers
    • Y10S416/02—Formulas of curves

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

1,171,01. Axial-flow fans. ROTRON Inc. Jan.2, 1967 [March 28, 1966], No.124/67. Heading F1C. In an encased axial-flow fan, the blades 55 and/ or the flow path 51 within the casing 54a are shaped to impart to the air a radially outward component of flow greater than that due to the centrifugal effect of rotation of the flow. Moreover, the internal surface 53 of the casing has a discontinuity substantially level with the downstream ends of the blades so that the flow path 51 opens suddenly into an unobstructed zone extending radially outwards and downstream of the flow path, to allow the air leaving the flow path to develop freely the flow patterns it contains. Thus, as shown, spirals 72, 73 of discharged air can flow freely within the theoretical envelope formed by rotating the line 10 about the rotational axis. The radially outer edge of each blade follows closely the contour of the internal surface 53. A mounting ring 69 can be connected to a wall as shown or to a duct. The ring 69 may be omitted, the air leaving the flow path then discharging directly into the ambient. A preswirler may be arranged in the inlet. An electric driving motor is mounted in the rotor hub 52 which is supported by the casing through spider arms 56. The hub 52 and internal surface 53 may both diverge in the direction of flow to form a flow passage of substantially constant cross-sectional area, the angle of divergence of the internal surface being between 10 and 20 degrees. Alternatively the hub, or the hub and internal surface, may be cylindrical. Each fan blade has a generally transversely concave leading surface 61 with its trailing end curved sharply forwardly of the surface in the direction of air-flow. The radially outer portion of the blade, generally over about one-third of its radial length, is inclined rearwardly by an increasing amount from the leading end to the trailing end. The trailing end is inclined rearwardly over most of its radial length, e.g. by 30 degrees at its radially outer portion.
GB024/67A 1966-03-28 1967-01-02 Axial Flow Propeller Fan. Expired GB1171001A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US537800A US3334807A (en) 1966-03-28 1966-03-28 Fan

Publications (1)

Publication Number Publication Date
GB1171001A true GB1171001A (en) 1969-11-19

Family

ID=24144143

Family Applications (1)

Application Number Title Priority Date Filing Date
GB024/67A Expired GB1171001A (en) 1966-03-28 1967-01-02 Axial Flow Propeller Fan.

Country Status (5)

Country Link
US (1) US3334807A (en)
DE (1) DE1628363A1 (en)
FR (1) FR1513882A (en)
GB (1) GB1171001A (en)
NL (1) NL6702305A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2339740A1 (en) * 1976-01-28 1977-08-26 Torin Corp AXIAL FLOW TURBINE WHEEL
EP0084868A1 (en) * 1982-01-27 1983-08-03 MAN Nutzfahrzeuge Aktiengesellschaft Flow advantageous construction of an enclosure for the reduction of the fan and engine noise of an internal-combustion engine with liquid cooling
EP0143235A1 (en) * 1983-09-30 1985-06-05 Siemens Aktiengesellschaft Axial ventilator without guide ring, especially for ventilating heat exchangers
EP0259061A2 (en) * 1986-09-01 1988-03-09 Seiko Electronic Components Ltd. Axial flow fan and fan blade therefor
EP0583091A2 (en) * 1992-07-22 1994-02-16 Valeo Thermique Moteur A fan

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3416725A (en) * 1967-10-12 1968-12-17 Acme Engineering And Mfg Corp Dihedral bladed ventilating fan
DE6801232U (en) * 1968-10-08 1969-01-16 Siemens Ag SEMI-AXIAL FAN IMPELLER
CH611983A5 (en) * 1974-11-18 1979-06-29 Papst Motoren Kg
JPS5949437B2 (en) * 1977-01-28 1984-12-03 川崎重工業株式会社 mixed flow blower impeller
DE2742734A1 (en) * 1977-09-22 1979-04-05 Mulfingen Elektrobau Ebm AXIAL FAN
US4564335A (en) * 1979-10-06 1986-01-14 Papst-Motoren Gmbh & Co. Kg Axial flow fan
DE3227698A1 (en) * 1982-07-24 1984-01-26 Papst-Motoren GmbH & Co KG, 7742 St Georgen AXIAL FAN
ZA839309B (en) * 1983-06-06 1985-09-14
DE3335648A1 (en) * 1983-09-30 1985-04-18 Siemens AG, 1000 Berlin und 8000 München STEERING WHEELLESS AXIAL FAN, ESPECIALLY FOR VENTILATING HEAT EXCHANGERS
DE3638282B4 (en) * 1985-11-08 2006-05-04 Papst Licensing Gmbh & Co. Kg Axialkleinstgebläse
US5197854A (en) * 1991-09-05 1993-03-30 Industrial Design Laboratories, Inc. Axial flow fan
US6254343B1 (en) * 1999-12-06 2001-07-03 Motorola, Inc. Low-noise cooling fan for electronic components and method of making the same
US7021895B2 (en) * 2002-11-13 2006-04-04 Hewlett-Packard Development Company, L.P. Fan module with integrated diffuser
DE10357289A1 (en) * 2003-12-05 2005-07-07 Minebea Co., Ltd. Compact diagonal fan
US20050281692A1 (en) * 2004-06-17 2005-12-22 Sunonwealth Electric Machine Industry Co., Ltd. Axial-flow type fan having an air inlet blade structure tipped with leading corners
ITBO20040468A1 (en) * 2004-07-23 2004-10-23 Spal Srl AXIAL FAN WITH INCREASED FLOW
US20060171804A1 (en) * 2005-01-07 2006-08-03 Brown Fred A Fluid moving device
US7095188B1 (en) * 2005-03-10 2006-08-22 Inventec Corporation Serial fan set and rotation speed-matching curve generation method thereof
TW200639327A (en) * 2005-05-13 2006-11-16 Delta Electronics Inc Heat-dissipating device and frame thereof
US7416386B2 (en) * 2005-09-21 2008-08-26 Delta Electronics, Inc. Heat dissipation apparatus
US20070297912A1 (en) * 2006-06-27 2007-12-27 Dry Air Technology Enhanced axial air mover system with enclosure profile
CN101526091B (en) * 2008-03-07 2012-01-04 台达电子工业股份有限公司 Fan and fan frame thereof
JP5728210B2 (en) * 2010-04-27 2015-06-03 ミネベア株式会社 Axial fan
ITMI20120451A1 (en) * 2012-03-22 2013-09-23 Elica Spa IMPELLER FOR AXIAL FLUID CONVEYANCE, IN PARTICULAR FOR REFRIGERATION SYSTEMS
TWI614412B (en) * 2015-12-02 2018-02-11 建準電機工業股份有限公司 Axial fan and impeller thereof
JP6802022B2 (en) * 2016-09-29 2020-12-16 山洋電気株式会社 Reversible fan
CN115523161B (en) * 2022-11-28 2023-03-10 佛山市南海九洲普惠风机有限公司 Low-pressure axial flow fan

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU128604B (en) * 1904-08-16 1905-08-15 Olds Motor Works Improvements in motor vehicles
US2427032A (en) * 1943-09-01 1947-09-09 Joy Mfg Co Fan and motor housing
US2742223A (en) * 1952-12-13 1956-04-17 Font Eduardo Soler Electric propeller fans and the like
US2991927A (en) * 1958-02-03 1961-07-11 Thomas E Quick Apparatus for moving fluids
US2926838A (en) * 1958-10-07 1960-03-01 Jacobus Constant Van Rijn Ventilating motor and fan
BE638547A (en) * 1962-10-29 1900-01-01

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2339740A1 (en) * 1976-01-28 1977-08-26 Torin Corp AXIAL FLOW TURBINE WHEEL
EP0084868A1 (en) * 1982-01-27 1983-08-03 MAN Nutzfahrzeuge Aktiengesellschaft Flow advantageous construction of an enclosure for the reduction of the fan and engine noise of an internal-combustion engine with liquid cooling
EP0143235A1 (en) * 1983-09-30 1985-06-05 Siemens Aktiengesellschaft Axial ventilator without guide ring, especially for ventilating heat exchangers
EP0259061A2 (en) * 1986-09-01 1988-03-09 Seiko Electronic Components Ltd. Axial flow fan and fan blade therefor
EP0259061A3 (en) * 1986-09-01 1989-02-22 Seiko Electronic Components Ltd. Axial flow fan and fan blade therefor
EP0583091A2 (en) * 1992-07-22 1994-02-16 Valeo Thermique Moteur A fan
EP0583091A3 (en) * 1992-07-22 1994-04-13 Valeo Thermique Moteur Sa

Also Published As

Publication number Publication date
DE1628363A1 (en) 1972-01-13
FR1513882A (en) 1968-02-16
NL6702305A (en) 1967-09-29
US3334807A (en) 1967-08-08

Similar Documents

Publication Publication Date Title
GB1171001A (en) Axial Flow Propeller Fan.
US3584968A (en) Fan construction
US4531890A (en) Centrifugal fan impeller
US4448573A (en) Single-stage, multiple outlet centrifugal blower
US4895489A (en) Axial flow fan
US3650633A (en) In-line centrifugal fan
US3515498A (en) Blower
US3444817A (en) Fluid pump
EP0971131A3 (en) Centrifugal blower assembly for an automotive vehicle
US2641191A (en) Guide means on impeller for centrifugal pumps or blowers
US3936223A (en) Compressor diffuser
FI89975B (en) Axial-flow fan
US3059833A (en) Fans
US3484039A (en) Fans and compressors
GB1206328A (en) Semi-axial flow fans
WO1990009524A1 (en) Centrifugal fan and diffuser with accumulating volute
US2335734A (en) Centrifugal fan
US2176325A (en) Fluid impelling means
US1843088A (en) Centrifugal fan
KR970000161A (en) cleaner
US2240653A (en) Fan
US3794443A (en) Wide dispersion fan impeller
US2441239A (en) Blower apparatus
KR970020018A (en) Vacuum cleaner
JPH04171299A (en) Air blower