north central Iowa, Hampton | The concept is similar on all of them. A hydrostatic pump pumps more or less oil to vary the groundspeed. Fendt (CVT) designed their own pump and it has a larger range of oil flow. Because of that, you can go from zero to full speed with just the pump. Everyone else including Deere's IVT uses at least a couple ranges-- zero mph is low range, the hydro pump swings and you build speed. At around 7 mph, the trans. shifts ranges automatically and the pump swings again.
It's all done by the tranny computers, but you may feel a little shift taking place, which you won't with the Fendt / AGCO.
This video will show you the parts on a Fendt. For anything else, add in a couple clutch packs and ranges... http://www.youtube.com/watch?v=dgtIKMAjvFI |
CVT and IVT the same?
