JPS575596A - Cooling fan - Google Patents
Cooling fanInfo
- Publication number
- JPS575596A JPS575596A JP7897980A JP7897980A JPS575596A JP S575596 A JPS575596 A JP S575596A JP 7897980 A JP7897980 A JP 7897980A JP 7897980 A JP7897980 A JP 7897980A JP S575596 A JPS575596 A JP S575596A
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- pole
- eddy current
- magnetic
- boss
- 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
Links
- 238000001816 cooling Methods 0.000 title abstract 2
- 230000004907 flux Effects 0.000 abstract 3
- 239000000498 cooling water Substances 0.000 abstract 1
- 230000003993 interaction Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
PURPOSE: To heighten transmitted torque and reduce the size and weight of a cooling fan, by providing the fan with an eddy current generation part, rotatably supporting the part on a rotary body which is rotated by an engine or the like, and reducing the reluctance to efficiently utilize all magnetic flux extending from a magnetic pole mounted on the rotary body.
CONSTITUTION: A pulley 18, which is rotated by the crank pulley of an engine, is secured on a boss 16 at the end of the main shaft of a cooling water pump 12. A magnetic pole 22 and a slip ring 24 are secured on the boss 16 and electrically connected to each other. A fan 38 is secured on the peripheral surface of an eddy current rotor 40 made of a material which has at least one of the properties of a magnetic and an electroconductive substances. The rotor 40 is rotatably supported on the boss 16 and is opposed to the magnetic pole 22 across a small gap. Magnetic flux from the pole 22 is all conducted through the rotor 40. An electromotive force is induced in the rotor 40 due to the velocity difference between the pole 22 and the rotor 40 so that an eddy current flows. Transmitted torque is caused by the interaction between the eddy current and the magnetic flux from the pole 22.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7897980A JPS575596A (en) | 1980-06-13 | 1980-06-13 | Cooling fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7897980A JPS575596A (en) | 1980-06-13 | 1980-06-13 | Cooling fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS575596A true JPS575596A (en) | 1982-01-12 |
Family
ID=13677003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7897980A Pending JPS575596A (en) | 1980-06-13 | 1980-06-13 | Cooling fan |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS575596A (en) |
-
1980
- 1980-06-13 JP JP7897980A patent/JPS575596A/en active Pending
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