Lawn care equipment, such as riding tractors, require easy-to-use transmissions that can be shifted smoothly between forward and reverse speeds.
For the outdoor power equipment market, hydromechanical devices have traditionally been the only viable option when it has come to CVT/IVT options. Other types of mechanical CVT/IVTs are simply not durable enough to meet the needs of this market – and are often expensive, complex, difficult to scale and tend to be very noisy. The NuVinci® CVP fully addresses these issues for the lawn and garden market. It is more durable, more scalable, less costly to manufacture and mechanically less complex than hydromechanical IVTs.
An IVT is a type of continuously variable transmission that includes forward, reverse and zero output speeds all within its range of ratios of input to output speeds. For applications such as lawn and garden equipment, an IVT is a good choice because the mower must be able to move quickly in both forward and backward directions without manual shifting. The NuVinci CVP technology provides a mechanical IVT that is quieter and uses dramatically fewer parts than other mechanical IVT designs.
Fallbrook is seeking development partners to use NuVinci IVT technology in lawn care equipment. For information, use the contact form in the right-hand column of this page.
- Seamless shifting over an infinite number of ratios
- More durable and significantly quieter
- Supports multiple power outlets for power take off (PTO) applications
- Lighter, less complex than hydromechanical IVTs
- Easier and less costly to manufacture
- Greater scalability across product lines with potential to reuse tooling
The NuVinci® CVP optimizes system operation by using the company's patented continuously variable planetary (CVP) technology. Instead of the traditional gear and clutch mechanisms found in conventional transmissions, these products leverage a set of rotating spheres that are arranged around a central "sun" that transfers torque between two "rings." Tilting the spheres changes their contact diameters on the rings, permitting an infinite progression of speed ratios. The result is a smooth, seamless and continuous transition to any ratio within its range, maximizing overall powertrain efficiency and ride quality.