Register free!

The Green Industry's Resource Center



Reply
 
Thread Tools   Display Modes
  #1  
Old 06-04-2009, 05:45 PM
nosparkplugs's Avatar
nosparkplugs nosparkplugs is offline
LawnSite Gold Member
 
Join Date: Mar 2007
Location: Memphis, TN
Posts: 3,445
Allison IVT transmission

Allison & British based Torotrak have joined together as of March 2009 to offer a new Heavy Duty IVT transmission.


(IVT) infinity variable transmission. Unlike continuously variable transmissions (CVT) found in snowmobiles and some cars already on the market, the IVT can handle much more torque. If its good enough for the latest severe-duty tractors and heavy earth moving equipment, it should hold up to anything we can dish out.

Instead of having a few fixed gear ratio's like a conventional transmission, the IVT uses a variator, effectivley giving the transmission an infinite number of seamless speeds. Geared Neutral Feature means their will be no need for a clutch or torque converter. The engine is connected directley to the transmission or the tires. The IVT be it on a hill or stopped it will not require braking or a gear shifter the IVT can hold its own position.

http://www.torotrak.com/IVT/works/variator.htm
http://www.torotrak.com/

Last edited by nosparkplugs; 06-04-2009 at 05:52 PM.
Reply With Quote
  #2  
Old 06-04-2009, 06:00 PM
JDiepstra JDiepstra is offline
LawnSite Bronze Member
 
Join Date: Dec 2008
Location: Grand Rapids MI
Posts: 1,512
Probably a good idea to try it out in a Duramax first. No sense slamming it right into a real engine.
Reply With Quote
  #3  
Old 06-04-2009, 10:50 PM
bobcat_ron's Avatar
bobcat_ron bobcat_ron is online now
LawnSite Fanatic
 
Join Date: Nov 2007
Location: Abbotsford, British Columbia
Posts: 9,952
I think Fendt uses them in their tractors, it's almost like a Hydrostatic transmission, they are extremely smooth under torque and heavy accelerating.
__________________
The amount of energy necessary to refute bullsh*t is an order of magnitude bigger than to produce it


http://www.youtube.com/user/69rd96
Reply With Quote
  #4  
Old 06-04-2009, 11:45 PM
Duffster's Avatar
Duffster Duffster is offline
LawnSite Bronze Member
 
Join Date: Mar 2009
Location: Midwest
Posts: 1,181
Quote:
Originally Posted by bobcat_ron View Post
I think Fendt uses them in their tractors, it's almost like a Hydrostatic transmission, they are extremely smooth under torque and heavy accelerating.
You can get them in Deere's to0.

Doesn't rob hp and make heat like a hydro



ps Dipstra if it can hold up in tractors it should be able to handle your "real" engine
__________________


Quote:
Originally Posted by Mark Oomkes
Your argument falls flatter than a 3 day old roadkill squirrel.
Reply With Quote
  #5  
Old 06-04-2009, 11:48 PM
ProTouch Groundscapes's Avatar
ProTouch Groundscapes ProTouch Groundscapes is offline
LawnSite Silver Member
 
Join Date: Nov 2007
Location: OH
Posts: 2,136
this will be nice, cvt's are uncanny for thier ability to be in the right "gear" (i know they dont have gears) for any given load/speed.

i remember reading in an ATV magazine a guy was riding his quad in the mountains on some national trails. and we all know that you have to carb your bikes properly for the altitude you ride at, well since he was gaining altitude his engine was not putting out enough power but b/c of the cvt he said it found a sweet spot and was able to make it the rest of the way up there b/c it had found the perfect speed for the amount of power he had putting out.

he said the sport quads with manual trans couldnt make it to the top b/c of only having a set amount of gear ratios.
__________________
ProTouch Groundscapes LLC.
"Creativity Inspired By The World We Live In."
Reply With Quote
  #6  
Old 06-06-2009, 02:50 PM
Gravel Rat Gravel Rat is offline
LawnSite Member
 
Join Date: Jul 2002
Location: British Columbia
Posts: 9,544
A fancy transmission that will cost you big money to repair when it blows up.
Reply With Quote
  #7  
Old 06-06-2009, 03:15 PM
bobcat_ron's Avatar
bobcat_ron bobcat_ron is online now
LawnSite Fanatic
 
Join Date: Nov 2007
Location: Abbotsford, British Columbia
Posts: 9,952
Quote:
Originally Posted by Gravel Rat View Post
A fancy transmission that will cost you big money to repair when it blows up.
Not really, Fendt is using a similar system, and a pig farmer I worked for has 4 of them, not one has problems, and the dairy farmers here use them now too.
__________________
The amount of energy necessary to refute bullsh*t is an order of magnitude bigger than to produce it


http://www.youtube.com/user/69rd96
Reply With Quote
  #8  
Old 06-06-2009, 08:11 PM
doubleedge's Avatar
doubleedge doubleedge is offline
LawnSite Senior Member
 
Join Date: Mar 2008
Location: ND
Posts: 912
That looks really nice. I hope that they eventually release some for the 1/2 ton to 1 ton trucks, also.
__________________


Cummins isn't spelled with a g!!!!!
Reply With Quote
  #9  
Old 06-07-2009, 12:30 AM
nosparkplugs's Avatar
nosparkplugs nosparkplugs is offline
LawnSite Gold Member
 
Join Date: Mar 2007
Location: Memphis, TN
Posts: 3,445
I will agree that the IVT would be expensive to repair, you obviuolsy did not read what the IVT does, increase production, better fuel economy and infinate gear ratio's. The EPA may burden the newer gasoline & diesel truck engines with emission hardware, but the IVT transmission will do more work with torque be it more or less.

Might be better to say you cannot afford a truck with the IVT when I comes to market, neither can most of us.

GR your always negative, this is not even a Dodge product.


Quote:
Originally Posted by Gravel Rat View Post
A fancy transmission that will cost you big money to repair when it blows up.
Reply With Quote
  #10  
Old 06-07-2009, 01:04 AM
TXNSLighting's Avatar
TXNSLighting TXNSLighting is offline
LawnSite Fanatic
 
Join Date: Feb 2007
Location: DFW, TX
Posts: 6,460
Quote:
Originally Posted by nosparkplugs View Post
I will agree that the IVT would be expensive to repair, you obviuolsy did not read what the IVT does, increase production, better fuel economy and infinate gear ratio's. The EPA may burden the newer gasoline & diesel truck engines with emission hardware, but the IVT transmission will do more work with torque be it more or less.

Might be better to say you cannot afford a truck with the IVT when I comes to market, neither can most of us.

GR your always negative, this is not even a Dodge product.
__________________
Ryan

Always a lesson, never a failure.

www.meangreenlawncare.com
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump





Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ©1998 - 2012, LawnSite.comô - Moose River Media
All times are GMT -4. The time now is 11:14 PM.

Page generated in 0.09491 seconds with 7 queries