Variator
![](http://upload.wikimedia.org/wikipedia/commons/thumb/d/d2/EvansFrictionConeHagley01.jpg/150px-EvansFrictionConeHagley01.jpg)
![](http://upload.wikimedia.org/wikipedia/commons/thumb/6/6b/Evans_friction_cone_-_Hagley_Aug_2009.jpg/150px-Evans_friction_cone_-_Hagley_Aug_2009.jpg)
The Evans friction cone, a type of cone ring transmission. Moving the friction ring between the two cones varies the effective gear ratio
A variator is a device that can change its parameters, or can change parameters of other devices.[1]
Often a variator is a mechanical power transmission device that can change its gear ratio continuously (rather than in steps).[2]
Examples
- Beier variable-ratio gear
- Continuously variable transmission
- Evans friction cone
- NuVinci continuously variable transmission
- Variator (variable valve timing)
- Variomatic
- VANOS
See also
- Epicyclic gearing
![](http://upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/30px-Commons-logo.svg.png)
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References
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