Variator

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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]

• Beier variable-ratio gear
• Continuously variable transmission
• Evans friction cone
• NuVinci continuously variable transmission
• Variator (variable valve timing)
• Variomatic
• VANOS

• Epicyclic gearing

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