JPS57195817A - Cooling fan of automobile engine - Google Patents

Cooling fan of automobile engine

Info

Publication number
JPS57195817A
JPS57195817A JP8004881A JP8004881A JPS57195817A JP S57195817 A JPS57195817 A JP S57195817A JP 8004881 A JP8004881 A JP 8004881A JP 8004881 A JP8004881 A JP 8004881A JP S57195817 A JPS57195817 A JP S57195817A
Authority
JP
Japan
Prior art keywords
fan
driving shaft
poles
eddy current
permanent magnets
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.)
Pending
Application number
JP8004881A
Other languages
Japanese (ja)
Inventor
Kenzo Takahashi
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.)
Mitsubishi Steel Magnetics KK
Original Assignee
Mitsubishi Steel Magnetics KK
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 Mitsubishi Steel Magnetics KK filed Critical Mitsubishi Steel Magnetics KK
Priority to JP8004881A priority Critical patent/JPS57195817A/en
Publication of JPS57195817A publication Critical patent/JPS57195817A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P7/00—Controlling of coolant flow
    • F01P7/02—Controlling of coolant flow the coolant being cooling-air
    • F01P7/08—Controlling of coolant flow the coolant being cooling-air by cutting in or out of pumps
    • F01P7/081—Controlling of coolant flow the coolant being cooling-air by cutting in or out of pumps using clutches, e.g. electro-magnetic or induction clutches

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)

Abstract

PURPOSE:To reduce a level of noise at high speed running of an automobile and save its energy, by rotatably supporting a fan on a driving shaft, coupling the driving shaft and the fan through an eddy current type joint with each other and allowing rotation of the fan to smoothly follow rotation of the engine. CONSTITUTION:A fan 3 is rotatably supported to the end part of a driving shaft 1 through a bearing 2. Then a grooved ring 4, made of ferromagnetic material, is coaxially fitted to the inside of a boss of the fan 3, and many permanent magnets 5, 5' are radially arranged to the inside of a groove with a distance apart in such a manner tha poles at a face-to-face position to each other are of different polarity further poles neighboring to each other are of reverse polarity. Further a conductive non-magnetic cup 6 is inserted into a gap of the permanent magents 5, 5' not to be contacted to their pole side, and its base part is fixed to the driving shaft 1 by a key 7. In this way, at operation, an eddy current is generated in said cup 6 of a portion interposed between N, S poles of a pair of the permanent magnets 5, 5' to cause damping torque, thus the desired end can be attained.
JP8004881A 1981-05-28 1981-05-28 Cooling fan of automobile engine Pending JPS57195817A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8004881A JPS57195817A (en) 1981-05-28 1981-05-28 Cooling fan of automobile engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8004881A JPS57195817A (en) 1981-05-28 1981-05-28 Cooling fan of automobile engine

Publications (1)

Publication Number Publication Date
JPS57195817A true JPS57195817A (en) 1982-12-01

Family

ID=13707349

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8004881A Pending JPS57195817A (en) 1981-05-28 1981-05-28 Cooling fan of automobile engine

Country Status (1)

Country Link
JP (1) JPS57195817A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5036107U (en) * 1973-07-26 1975-04-16

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5036107U (en) * 1973-07-26 1975-04-16

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