The SM-15 IVT is infinitely variable. This means that any driven device can smoothly transition from forward speeds, to neutral, and to reverse with no need for a clutch. (Reversing gears may be needed for torque in reverse. See Torque Following below). 

The SM-15 IVT has a patented "Torque Following" feature that operates in the forward speed direction. This allows the transmissions to generate large torques.     For example, the SM-15 IVT, rated for 15 horsepower inputs can generate up to 300 ft-pounds of torque at full power. This is 17.6 times the torque output of a 15 HP motor running at 3500 rpm.

Microprocessor controlled VeriTran SM-15 IVT  transmissions can fully satisfy all the four torque-speed curves required for industrial applications: constant power; constant torque; linear torque with speed; and 2nd order increase in torque with speed. (See Torque Speed Curves) 

SM-15 IVT transmission efficiency is essentially constant throughout the entire speed/power range of operation. Transmission/power source efficiencies are comparable or significantly better than alternative variable speed drive technologies throughout the operating range.

The non-rotating design of the "variator" speed control mechanism contributes to a relatively simple device with minimum service and time-compliance maintenance requirements.

 

VeriTran SM-15 IVT transmissions can provide your applications and systems with cost-effective improvements in overall system performance  and energy utilization 

Torque Speed Curves

Electric Motors

Pumps

A key benefit is that the IVT allows the prime mover power source (engine, motor, etc.) to be started without load, then to be run up to the peak operating efficiency point, and operated in steady state at peak efficiency.  The IVT accommodates all the necessary changes in speed.