GB1412680A - Fan shrouds particularly for fans for automobile engines - Google Patents

Fan shrouds particularly for fans for automobile engines

Info

Publication number
GB1412680A
GB1412680A GB4362673A GB4362673A GB1412680A GB 1412680 A GB1412680 A GB 1412680A GB 4362673 A GB4362673 A GB 4362673A GB 4362673 A GB4362673 A GB 4362673A GB 1412680 A GB1412680 A GB 1412680A
Authority
GB
United Kingdom
Prior art keywords
fan
projections
fans
shroud
automobile engines
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
GB4362673A
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.)
Ford Motor Co Ltd
Ford Motor Co
Original Assignee
Ford Motor Co Ltd
Ford Motor Co
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 Ford Motor Co Ltd, Ford Motor Co filed Critical Ford Motor Co Ltd
Publication of GB1412680A publication Critical patent/GB1412680A/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
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/522—Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps
    • F04D29/526—Details of the casing section radially opposing blade tips
    • 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
    • Y10S415/00—Rotary kinetic fluid motors or pumps
    • Y10S415/914—Device to control boundary layer

Landscapes

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

Abstract

1412680 Axial-flow fans FORD MOTOR CO Ltd 18 Sept 1973 [4 Oct 1972] 43626/73 Heading F1C A fan shroud, e.g. of an engine cooling fan, includes a generally cylindrical section adapted to surround and axially enclose a fan and having circumferentially spaced projections from its internal surface to provide a circumferentially undulating pattern to the axial flow of air past the shroud, thereby reducing noise. Instead of being square as shown, the cross-sectional shape of the projections 24 may be semi-circular. The projections are tapered in radial height at their leading edges.
GB4362673A 1972-10-04 1973-09-18 Fan shrouds particularly for fans for automobile engines Expired GB1412680A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00295048A US3832085A (en) 1972-10-04 1972-10-04 Automotive fan shroud

Publications (1)

Publication Number Publication Date
GB1412680A true GB1412680A (en) 1975-11-05

Family

ID=23135994

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4362673A Expired GB1412680A (en) 1972-10-04 1973-09-18 Fan shrouds particularly for fans for automobile engines

Country Status (6)

Country Link
US (1) US3832085A (en)
JP (1) JPS4971335A (en)
AU (1) AU470728B2 (en)
CA (1) CA996080A (en)
DE (1) DE2345506A1 (en)
GB (1) GB1412680A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2276672A (en) * 1993-03-27 1994-10-05 Deutsche Forsch Luft Raumfahrt Flow machine and method for the reduction of sound emission and improvement of the air output and efficiency therein

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4061188A (en) * 1975-01-24 1977-12-06 International Harvester Company Fan shroud structure
JPS5540342Y2 (en) * 1975-07-10 1980-09-20
US4152094A (en) * 1975-10-31 1979-05-01 Hitachi, Ltd. Axial fan
JPS53115914A (en) * 1977-03-18 1978-10-09 Matsushita Electric Ind Co Ltd Electric blower
JPS53115912A (en) * 1977-03-18 1978-10-09 Matsushita Electric Ind Co Ltd Electric blower
JPS53115913A (en) * 1977-03-18 1978-10-09 Matsushita Electric Ind Co Ltd Electric blower
DE3326650A1 (en) * 1983-07-23 1985-01-31 Standard Elektrik Lorenz Ag, 7000 Stuttgart CROSS-FLOW FAN WITH AIR EXHAUST SPEED INCREASED IN THE FRONT ZONES
JP2767045B2 (en) * 1988-10-31 1998-06-18 臼井国際産業 株式会社 Radiator shroud
US4927328A (en) * 1989-03-02 1990-05-22 Scoates William D Shroud assembly for axial flow fans
US5277541A (en) * 1991-12-23 1994-01-11 Allied-Signal Inc. Vaned shroud for centrifugal compressor
DE4223374C2 (en) * 1992-07-16 1994-09-15 Viscodrive Gmbh Differential gear
US6375416B1 (en) 1993-07-15 2002-04-23 Kevin J. Farrell Technique for reducing acoustic radiation in turbomachinery
DE69430488T2 (en) * 1993-08-30 2002-12-19 Bosch Robert Corp HOUSING WITH RECIRCULATION CONTROL FOR USE IN AXIAL FAN WITH FRAME
US6123051A (en) * 1998-08-12 2000-09-26 Chrysler Corporation Shroud for an engine cooling fan
US6264427B1 (en) 1999-02-10 2001-07-24 Shop-Vac Corporation Vaneless impeller housing for a vacuum cleaner
DE10155955C2 (en) * 2001-11-09 2003-10-30 Eppendorf Ag Vibratory rotor laboratory centrifuge with noise reduction device
US8777560B2 (en) * 2006-06-27 2014-07-15 Socpra—Sciences et Genie, S.E.C. Method and apparatus for controlling tonal noise from subsonic fans
FR2943000A1 (en) * 2009-03-12 2010-09-17 Peugeot Citroen Automobiles Sa Nozzle for motor-driven fan or fixed collar in motor vehicle e.g. hybrid vehicle, has rotation face whose fractal dimension is higher than specific value permitting localization of acoustic modes near of raised and/or hollow elements
ITTO20110362A1 (en) * 2011-04-26 2012-10-27 Denso Corp FAN ASSEMBLY FOR VEHICLES

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1693352A (en) * 1922-12-06 1928-11-27 Westinghouse Electric & Mfg Co Dredger pump
US1993158A (en) * 1930-09-08 1935-03-05 George D Roper Corp Air moving apparatus
US2202790A (en) * 1938-02-23 1940-05-28 Allis Chalmers Mfg Co Waste paper stock pump
US2558816A (en) * 1947-08-16 1951-07-03 United Aircraft Corp Fluid mixing device
US2650752A (en) * 1949-08-27 1953-09-01 United Aircraft Corp Boundary layer control in blowers
FR1104644A (en) * 1954-02-15 1955-11-22 Thomson Houston Comp Francaise Improvements to Fluid Flow Control Systems
US2944623A (en) * 1955-09-02 1960-07-12 Jr Albert G Bodine Jet engine noise reducer
DE1161481B (en) * 1960-03-19 1964-01-16 Voith Gmbh J M Device for stabilizing the characteristics of centrifugal machines with an axially flowed impeller
US3610262A (en) * 1969-10-07 1971-10-05 Boeing Co Stowable vane sonic throat inlet for jet aircraft noise suppression

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2276672A (en) * 1993-03-27 1994-10-05 Deutsche Forsch Luft Raumfahrt Flow machine and method for the reduction of sound emission and improvement of the air output and efficiency therein
US5518364A (en) * 1993-03-27 1996-05-21 Deutsche Forschungsanstalt For Luft-Und Raumfahrt E.V. Method for the reduction of sound emission as well as for the improvement of the air output and the efficiency in an axial flow machine, and flow machine
GB2276672B (en) * 1993-03-27 1996-07-03 Deutsche Forsch Luft Raumfahrt Flow machine and method for the reduction of sound emission and improvement of the air output and efficiency therein

Also Published As

Publication number Publication date
CA996080A (en) 1976-08-31
JPS4971335A (en) 1974-07-10
AU5936773A (en) 1975-02-20
DE2345506A1 (en) 1974-04-11
AU470728B2 (en) 1976-03-25
US3832085A (en) 1974-08-27

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees