10-28-2011, 02:12 PM
|
#31 (permalink)
|
|
Master EcoModder
Join Date: Feb 2011
Location: Phillips, WI
Posts: 1,016
Thanks: 188
Thanked 467 Times in 287 Posts
|
|
|
|
|
 Today
|
|
|
|
Other popular topics in this forum...
|
|
|
|
|
10-28-2011, 02:28 PM
|
#32 (permalink)
|
|
Quasi-Modder
Join Date: May 2010
Location: DeForest, Wisconsin
Posts: 144
Thanks: 23
Thanked 25 Times in 12 Posts
|
Quote:
Originally Posted by CFECO
For a simple differential just put a overrunning clutch at each wheel.
|
Would you trust you life to a set of these going 70MPH? |
|
|
|
|
10-28-2011, 02:33 PM
|
#33 (permalink)
|
|
(:
Join Date: Jan 2008
Location: up north
Posts: 12,762
Thanks: 1,585
Thanked 3,555 Times in 2,218 Posts
|
Quote:
Originally Posted by JRMichler
|
Neato! How do I attach that to my wheels? |
|
|
|
|
10-28-2011, 10:00 PM
|
#34 (permalink)
|
|
Master EcoModder
Join Date: Feb 2011
Location: Phillips, WI
Posts: 1,016
Thanks: 188
Thanked 467 Times in 287 Posts
|
Beats me. I'm not about to waste time trying to invent around a differential. But if somebody really wants to build something using overrunning clutches, they are available.
|
|
|
|
|
10-28-2011, 11:07 PM
|
#35 (permalink)
|
|
CFECO
Join Date: May 2008
Location: Vail, AZ.
Posts: 552
Thanks: 174
Thanked 60 Times in 56 Posts
|
I figured I'd get a comment on that! I would hope a professional automotive engineer would not have a problem solving a small detail like that? Hilliard Corp. has bi-directional, industrial overrunning clutches. Building a drive setup with these will also produce a locking diff. action, much like a Detroit Locker. If my drawings were not lost off my previous computer, I'd show you in detail how to mount them too.
|
|
|
|
|
10-28-2011, 11:19 PM
|
#36 (permalink)
|
|
(:
Join Date: Jan 2008
Location: up north
Posts: 12,762
Thanks: 1,585
Thanked 3,555 Times in 2,218 Posts
|
Splicing it into the CV shafts probably isn't too big a deal.
I do like the one-way overrunning clutch though- imagine the nice effortless glides! IIRC the old 2-stroker Saabs had them.
Last edited by Frank Lee; 10-29-2011 at 12:57 AM..
|
|
|
|
|
10-29-2011, 08:41 AM
|
#37 (permalink)
|
|
Master EcoModder
Join Date: May 2008
Location: Maynard, MA Eaarth
Posts: 7,907
Thanks: 3,475
Thanked 2,950 Times in 1,844 Posts
|
Are these essentially ratchets; like in bicycles? Would this eliminate the need for the differential, and how would the efficiency compare?
|
|
|
|
|
10-29-2011, 09:11 AM
|
#38 (permalink)
|
|
Master EcoModder
Join Date: Sep 2009
Posts: 5,927
Thanks: 877
Thanked 2,024 Times in 1,304 Posts
|
Quote:
Originally Posted by Frank Lee
Splicing it into the CV shafts probably isn't too big a deal.
I do like the one-way overrunning clutch though- imagine the nice effortless glides! IIRC the old 2-stroker Saabs had them.
|
Plymouth had freewheeling in the 1930s. Caused most of the archaic laws about illegal coasting in neutral passed late in the 1930s.
The problem was you had to be stopped to disengage the freewheeling and the period braking systems were pitiful compared to modern discs.
regards
Mech |
|
|
|
|
10-29-2011, 09:41 AM
|
#39 (permalink)
|
|
CFECO
Join Date: May 2008
Location: Vail, AZ.
Posts: 552
Thanks: 174
Thanked 60 Times in 56 Posts
|
They use rollers which ride up ramps to lock the inner drive member to the outer driven member. This one works in either direction. Efficiency should be better than a normal right angle differential using gears.
|
|
|
|
|
10-29-2011, 10:13 AM
|
#40 (permalink)
|
|
Eco-ventor
Join Date: Oct 2010
Location: sweden
Posts: 1,645
Thanks: 76
Thanked 709 Times in 450 Posts
|
Quote:
|
Efficiency should be better than a normal right angle differential using gears.
|
Are you referring to normal driving or coasting?
I ask because the gears inside the differential don't move that much, and consequently can't be a source of significant losses. During coasting however, you'd have fewer parts moving with freewheeling clutches far out in the drive line.
__________________
2016: 128.75L for 1875.00km => 6.87L/100km (34.3MPG US)
2017: 209.14L for 4244.00km => 4.93L/100km (47.7MPG US)
|
|
|
|
|
