Nothing Special   »   [go: up one dir, main page]

FR2256684A5 - Centrifugal fan with curved blades - has cylindrical blade portions on ends of blades - Google Patents

Centrifugal fan with curved blades - has cylindrical blade portions on ends of blades

Info

Publication number
FR2256684A5
FR2256684A5 FR7346806A FR7346806A FR2256684A5 FR 2256684 A5 FR2256684 A5 FR 2256684A5 FR 7346806 A FR7346806 A FR 7346806A FR 7346806 A FR7346806 A FR 7346806A FR 2256684 A5 FR2256684 A5 FR 2256684A5
Authority
FR
France
Prior art keywords
blades
centrifugal fan
blade portions
cylindrical blade
blade
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
FR7346806A
Other languages
French (fr)
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.)
Sev Marchal
Original Assignee
Sev Marchal
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 Sev Marchal filed Critical Sev Marchal
Priority to FR7346806A priority Critical patent/FR2256684A5/en
Application granted granted Critical
Publication of FR2256684A5 publication Critical patent/FR2256684A5/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
    • F04D29/28—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

The fan rotor is made from a cut-out sheet of metal, with a hole in the centre for the driving shaft, and blades formed along the edge. The blades have right-angle sections on their ends and the end of each blade in the plane of the wheel is a curve, the folded portion of the blade forming part of a cylinder coinciding with this curve, the axis of which is parallel to that of the rotor. The radius of the blade end can be between half and twice that of the maximum rotor radius.
FR7346806A 1973-12-28 1973-12-28 Centrifugal fan with curved blades - has cylindrical blade portions on ends of blades Expired FR2256684A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7346806A FR2256684A5 (en) 1973-12-28 1973-12-28 Centrifugal fan with curved blades - has cylindrical blade portions on ends of blades

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7346806A FR2256684A5 (en) 1973-12-28 1973-12-28 Centrifugal fan with curved blades - has cylindrical blade portions on ends of blades

Publications (1)

Publication Number Publication Date
FR2256684A5 true FR2256684A5 (en) 1975-07-25

Family

ID=9129875

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7346806A Expired FR2256684A5 (en) 1973-12-28 1973-12-28 Centrifugal fan with curved blades - has cylindrical blade portions on ends of blades

Country Status (1)

Country Link
FR (1) FR2256684A5 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2606465A1 (en) * 1986-11-06 1988-05-13 Ducellier & Cie ROTATING ELECTRIC MACHINE FAN
US5021696A (en) * 1989-09-14 1991-06-04 Ford Motor Company Cooling fan with reduced noise for variable speed machinery
DE102005046056A1 (en) * 2005-09-27 2007-03-29 Robert Bosch Gmbh Fan e.g. radial fan, propeller for delivering cooling air for e.g. motor vehicle generator, has disk part from which blades run out, where blades have rear edge with height, and ratio of length of distance to height lies in specific range
CN103967836A (en) * 2013-01-24 2014-08-06 宏碁股份有限公司 Fan assembly
WO2018091822A1 (en) * 2016-11-15 2018-05-24 Valeo Equipements Electriques Moteur Fan for a rotor for a rotating electrical machine

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2606465A1 (en) * 1986-11-06 1988-05-13 Ducellier & Cie ROTATING ELECTRIC MACHINE FAN
EP0270393A2 (en) * 1986-11-06 1988-06-08 Equipements Electriques Moteur Ventilator of a rotating electrical machine
EP0270393A3 (en) * 1986-11-06 1988-06-15 Equipements Electriques Moteur Ventilator of a rotating electrical machine
US5021696A (en) * 1989-09-14 1991-06-04 Ford Motor Company Cooling fan with reduced noise for variable speed machinery
DE102005046056A1 (en) * 2005-09-27 2007-03-29 Robert Bosch Gmbh Fan e.g. radial fan, propeller for delivering cooling air for e.g. motor vehicle generator, has disk part from which blades run out, where blades have rear edge with height, and ratio of length of distance to height lies in specific range
CN103967836A (en) * 2013-01-24 2014-08-06 宏碁股份有限公司 Fan assembly
CN103967836B (en) * 2013-01-24 2016-04-27 宏碁股份有限公司 Fan component
WO2018091822A1 (en) * 2016-11-15 2018-05-24 Valeo Equipements Electriques Moteur Fan for a rotor for a rotating electrical machine
CN109690919A (en) * 2016-11-15 2019-04-26 法雷奥电机设备公司 The fan of rotor for rotating electric machine
CN109690919B (en) * 2016-11-15 2022-05-03 法雷奥电机设备公司 Fan for rotor of rotating electric machine

Similar Documents

Publication Publication Date Title
US3951611A (en) Blank for fan blade
GB1266585A (en)
GB1149857A (en) Alternators
KR830006590A (en) Blower
GB1477056A (en) Centrifugal fan wheel
GB1490778A (en) Blower wheel assembly and method of making same
FR2256684A5 (en) Centrifugal fan with curved blades - has cylindrical blade portions on ends of blades
GB1474644A (en) Fan blade and root assembly
GB1112058A (en) Variable-configuration turbo machine blades
FR2282548A1 (en) Blade for rotary fluid press. machine - is relieved on surface subject to depression to give centrifugal flow
US2524869A (en) Guide vane for axial flow screw fans, propellers, pumps, and the like
GB1379701A (en) Engine cooling fans
US2962207A (en) Blower wheel
GB1149130A (en) Flexible blade engine cooling fan
US3053438A (en) Rotary blowers
FR2386706A1 (en) Axial flow ventilator fan - has motor mounted by flat radial vanes with leading edges at 45 degrees to fan axis to reduce swirl
GB864645A (en) Improvements in or relating to rotors of centrifugal fans, compressors, superchargers, pumps and the like, provided with a rotary diffuser
GB1271782A (en) Improvements in or relating to fans
US2026689A (en) Blower
GB1121194A (en) Bladed rotor for a fluid flow machine
KR830005492A (en) Centrifugal Blower
ES185248U (en) Bomba centrifuga. (Machine-translation by Google Translate, not legally binding)
GB876620A (en) Improvements relating to machines for inducing movement of fluids
GB1290009A (en)
US2375220A (en) Fan wheel

Legal Events

Date Code Title Description
CD Change of name or company name
ST Notification of lapse