Market Applications - Current
Front End Accessory Drives
Because of its compact size and simplicity, the Orbital Traction MCVT is opening up new opportunities for fuel economy improvements for vehicle and engine manufacturers, not thought possible just a few years ago. These are called Front End Accessory Drives (FEAD’s). FEAD’s allow manufacturers decouple the rotating speed of any accessory on an engine and allow it to be designed for optimal efficiency; improving fuel economy and performance across the full operating spectrum of the vehicle or engine. Specific applications for our technology are:
The fan is the leading consumer of excess power in a large engine. By optimizing and controlling the fan speed to exactly match the needs of the engine, up to 6 % fuel economy savings can be realized.
Using an MCVT, boost can be optimized across the full operating spectrum of a vehicle, independent of temperature, engine speed and altitude. This allows engine manufacturers to downsize and optimize engine performance improving fuel economy as well as low engine speed performance. Additional benefits include the ability of truck manufacturers to design and build engines for duel fuel use.
Engine cooling can be optimized based on the demands on the engine. Additional benefits include quicker warm up of engines, all contributing to higher performance and fuel economy across the operating spectrum of the vehicle.
Full power can be produced at idle improving fuel economy for vehicles at rest as well as allowing vehicle manufacturers to design power generating systems that run at optimal power generating levels at all times. For specialty applications, multiple vehicle power sharing can be implemented, as well as full vehicle electrification.
AC and accessory compressors can be optimized for the full vehicle operating range downsizing compressor requirements and lowering initial costs as well as improving overall operating efficiency.
Industrial Speed Controller
Not every industrial control application lends itself to an electrical control solution. High inertia loads require over sizing of electric motors and associated controllers by as much as three to four times the base load. This drives up installation, maintenance and replacement costs. Operating costs are increased as well due to the lower efficiency of power electronics compared to mechanical gearboxes. Where precise speed control or “soft starting” of large loads is required, the MCVT provides a wide ratio range that continuously delivers power to the load. Since there are no gears in the MCVT, the power to the load remains constant during ratio (speed) adjustment.
Where hydraulic power is required, designers are continuously forced into a compromise between speed control, reliability and cost. Fixed displacement pumps are lower cost, offer greater durability and tolerate harsh environments better than variable displacement pumps. However, if the load speed needs to be controlled, they are inefficient because the fixed output needs to be regulated by holding back the output flow with dampers or control valves. Variable displacement pumps offer more efficient speed control, but are more expensive and more sensitive to operating conditions. These pumps require much cleaner fluid and thus require more diligent maintenance. The winning solution is to couple the robust fixed displacement pump with the speed control capability of the MCVT. This unit saves money by providing the best of efficiency, speed control and durability in a single package.
Auxillary Power Units
The high power density and efficiency of turbines make them ideal sources for energy on weight sensitive applications such as aircraft. Turbines combined with generators are called auxiliary power units (APUs) and provide the electrical power to aircraft. Because of the high speed and high inertia of turbines, they respond slowly to required speed changes in the load. APUs can benefit from the MCVT’s ability to make fast, accurate speed corrections under load variations. High rpm capacity coupled with high efficiency make the MCVT the ideal choice for speed control in critical turbine applications.