Direct-drive system for cooling system fans, exhaust blowers and pumps
AssigneePrime Datum Development Company, LLC
InventorsPatrick M. Rollins, George M. Lucas
Life of this patent
Estimating the term…
Abstract
The present invention is directed to a load bearing direct-drive system and a variable process control system for efficiently managing the operation of fans in a cooling system such as a wet-cooling tower, air-cooled heat exchanger (ACHE), HVAC system, blowers and centrifugal blowers, mechanical towers or chiller systems. In one embodiment, the load bearing direct-drive system comprises a load bearing torque multiplier device having an output rotatable shaft connected to a fan, and a load bearing motor comprising a rotatable shaft that drives the load bearing torque multiplier device.
Claims20
A drive system for rotating a load, comprising:
- a torque multiplier device having a rotatable output shaft connected to the load, the torque multiplier device comprising a constant ratio epicyclic traction drive device;
- and
- an electric motor comprising a rotatable shaft that is connected to the constant ratio epicyclic traction drive device so that the rotatable shaft of the motor drives the constant ratio epicyclic traction drive device.
A drive system for rotating a load, comprising:
- a torque multiplier device having a rotatable output shaft connected to the load, the torque multiplier device comprising an epicyclic traction drive device;
- a variable speed electric motor comprising a rotatable shaft that is connected to the epicyclic traction drive device so that the rotatable shaft of the motor drives the epicyclic traction drive device;
- a motor controller that is configured to measure one or more of the following:
- the load speed and the electrical current draw, electrical voltage draw and torque of the electric motor and output signals representing the measured load speed, electrical current draw, electrical voltage draw and torque, the motor controller being further configured to receive a feedback signal to adjust the speed and/or torque of the electric motor;
- and
- a computer to process the signals representing the measured load speed, electrical current draw, electrical voltage draw and torque and generate the feedback signal for input into the motor controller.
Dependencies are inferred from the claim text.