Torque Amplification: Is It Over Unity?

[Machinekraft]

In torque amplification, torque is multiplied without change in its input speed. Then this amplifier if coupled inbetween a motor and gene
rator would it not be a over unity machine?

 

[billy_joule]

No, that is not correct,
P=T*theta
If power is constant then torque decreases as RPM increases.
Pay attention next time you ride a bike and change gears.

http://en.m.wikipedia.org/wiki/Torque

 

[Machinekraft]

No, that is not correct,
P=T*theta
If power is constant then torque decreases as RPM increases.
Pay attention next time you ride a bike and change gears.

http://en.m.wikipedia.org/wiki/Torque

Thank you for your reply. What you have said is true for torque multiplication using speed reduction gear box. In case of torque amplification, torque alone is amplified without change in speed. Please look for mechanical torque amplifier in your search, you would understand my query. Thank you.

 

[jh0]

Torque amplifiers rely on a motor; it is the torque of the motor with its own source of energy that drives the output shaft.
http://en.wikipedia.org/wiki/Torque_amplifier

 

[Machinekraft]

Torque amplifiers rely on a motor; it is the torque of the motor with its own source of energy that drives the output shaft.
http://en.wikipedia.org/wiki/Torque_amplifier

 

[Machinekraft]

Thank you,