FR2335983A1 - SEMI-AXIAL WRAPPING FAN FOR SURFACE VENTILATION OF ELECTRIC MACHINES - Google Patents

SEMI-AXIAL WRAPPING FAN FOR SURFACE VENTILATION OF ELECTRIC MACHINES

Info

Publication number
FR2335983A1
FR2335983A1 FR7622880A FR7622880A FR2335983A1 FR 2335983 A1 FR2335983 A1 FR 2335983A1 FR 7622880 A FR7622880 A FR 7622880A FR 7622880 A FR7622880 A FR 7622880A FR 2335983 A1 FR2335983 A1 FR 2335983A1
Authority
FR
France
Prior art keywords
fan
hub
whose
fan blades
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.)
Granted
Application number
FR7622880A
Other languages
French (fr)
Other versions
FR2335983B3 (en
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.)
Felten and Guilleaume Carlswerk AG
Original Assignee
Felten and Guilleaume Carlswerk AG
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 Felten and Guilleaume Carlswerk AG filed Critical Felten and Guilleaume Carlswerk AG
Publication of FR2335983A1 publication Critical patent/FR2335983A1/en
Application granted granted Critical
Publication of FR2335983B3 publication Critical patent/FR2335983B3/fr
Granted 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
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F04D25/082—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit having provision for cooling the motor
    • 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
    • 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
    • F04D29/30—Vanes
    • 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
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/5806—Cooling the drive system
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/14—Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle

Abstract

The fan has an impeller which consists of a hub (3) and a plurality of fan blades (1) whose outline forms an irregular quadrilateral, whose one edge is in each case connected to the hub and whose edge facing away from the hub is in each case connected over its entire length to an air-guidance element (5) which surrounds all the fan blades and is in the form of a casing. In this case, it is intended to improve the efficiency by reducing the gap losses and hence to achieve a reduction in noise in the process. This is achieved in that the edges (4), which face away from the hub (3), of the fan blades (1) are straight or curved in an angle range from 30 DEG to 60 DEG with respect to the fan axis, and in that the air-guidance element (5) starts with its radially inner end in the immediate vicinity of the air inlet opening (air inlet grid) (9) and its radially outer end extends to the fan shroud except for a separation (s) which is as small as possible.
FR7622880A 1975-12-20 1976-07-27 SEMI-AXIAL WRAPPING FAN FOR SURFACE VENTILATION OF ELECTRIC MACHINES Granted FR2335983A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2557620A DE2557620B2 (en) 1975-12-20 1975-12-20 Fan with fan cover for a surface-ventilated, closed electrical machine

Publications (2)

Publication Number Publication Date
FR2335983A1 true FR2335983A1 (en) 1977-07-15
FR2335983B3 FR2335983B3 (en) 1979-04-13

Family

ID=5965031

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7622880A Granted FR2335983A1 (en) 1975-12-20 1976-07-27 SEMI-AXIAL WRAPPING FAN FOR SURFACE VENTILATION OF ELECTRIC MACHINES

Country Status (6)

Country Link
BE (1) BE849611A (en)
CH (1) CH611086A5 (en)
DE (1) DE2557620B2 (en)
FR (1) FR2335983A1 (en)
NL (1) NL7614102A (en)
SE (1) SE7609409L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2489226A1 (en) * 1980-08-29 1982-03-05 Jidosha Denki Kogyo Kk WIPER MOTOR FOR VEHICLE

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3207448C2 (en) * 1982-03-02 1985-11-07 Siemens AG, 1000 Berlin und 8000 München Fan arrangement for an externally ventilated electrical machine
DE3720464C3 (en) * 1987-06-20 1993-09-30 Abb Patent Gmbh Fan arrangement for an externally ventilated electrical machine
WO2010145785A2 (en) 2009-06-17 2010-12-23 Sew-Eurodrive Gmbh & Co. Kg Blower arrangement and electric machine, particularly electric motor
US8888450B2 (en) * 2011-09-23 2014-11-18 Brett W. Degner Sculpted fan housing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2489226A1 (en) * 1980-08-29 1982-03-05 Jidosha Denki Kogyo Kk WIPER MOTOR FOR VEHICLE

Also Published As

Publication number Publication date
DE2557620B2 (en) 1978-08-03
FR2335983B3 (en) 1979-04-13
SE7609409L (en) 1977-06-21
CH611086A5 (en) 1979-05-15
DE2557620A1 (en) 1977-06-30
BE849611A (en) 1977-04-15
NL7614102A (en) 1977-06-22

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Legal Events

Date Code Title Description
ST Notification of lapse