SE7609409L - FLEK WITH HOUSE FOR COAT-COOLED ELECTRICAL MACHINES - Google Patents

FLEK WITH HOUSE FOR COAT-COOLED ELECTRICAL MACHINES

Info

Publication number
SE7609409L
SE7609409L SE7609409A SE7609409A SE7609409L SE 7609409 L SE7609409 L SE 7609409L SE 7609409 A SE7609409 A SE 7609409A SE 7609409 A SE7609409 A SE 7609409A SE 7609409 L SE7609409 L SE 7609409L
Authority
SE
Sweden
Prior art keywords
hub
fan
whose
fan blades
air
Prior art date
Application number
SE7609409A
Other languages
Unknown language ( )
Swedish (sv)
Inventor
H-G Halt
Original Assignee
Felten & Guilleaume Carlswerk
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 & Guilleaume Carlswerk filed Critical Felten & Guilleaume Carlswerk
Publication of SE7609409L publication Critical patent/SE7609409L/en

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Power Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Motor Or Generator Cooling System (AREA)

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. <IMAGE>
SE7609409A 1975-12-20 1976-08-25 FLEK WITH HOUSE FOR COAT-COOLED ELECTRICAL MACHINES SE7609409L (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 (1)

Publication Number Publication Date
SE7609409L true SE7609409L (en) 1977-06-21

Family

ID=5965031

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7609409A SE7609409L (en) 1975-12-20 1976-08-25 FLEK WITH HOUSE FOR COAT-COOLED ELECTRICAL 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)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4399380A (en) * 1980-08-29 1983-08-16 Jidosha Denki Kogyo Kabushiki Kaisha Air cooled wiper motor
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
EP2443725B1 (en) 2009-06-17 2016-08-10 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

Also Published As

Publication number Publication date
DE2557620B2 (en) 1978-08-03
BE849611A (en) 1977-04-15
CH611086A5 (en) 1979-05-15
FR2335983A1 (en) 1977-07-15
FR2335983B3 (en) 1979-04-13
NL7614102A (en) 1977-06-22
DE2557620A1 (en) 1977-06-30

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