Recent Topics
Impala 2008 recall
by Durango
04/20/14 10:50 AM
Issues with simple mp3/wma player.
by mrsilv04
04/20/14 09:26 AM
Finally installed Lifeliner GLS on the Focus
by Miller88
04/20/14 08:42 AM
My PYB expierence
by Georgiaboy2109
04/20/14 08:24 AM
Any GM L-76 (LS-X variant) V8 owners out there?
by SuperEd73
04/20/14 07:52 AM
THE BATHTUB TEST
by Charlie1935
04/20/14 07:15 AM
My First OC in my 2006 Volvo XC90
by Toros
04/20/14 07:05 AM
Lubegard in p/s pump
by Bob_E
04/20/14 05:56 AM
How do you say it?
by GreeCguy
04/20/14 04:24 AM
Oil recommendation
by TIUSER
04/20/14 04:18 AM
A Slew Of Choices
by Red91
04/20/14 01:48 AM
Two Shops, One Septic Tank
by Red91
04/20/14 12:20 AM
Newest Members
loneryder, MNbiker, Amercanzer0, BobCos, rdm101
49632 Registered Users
Who's Online
78 registered (AandPDan, beast3300, 147_Grain, Bandito440, bigblumer, 77GrandPrix, 4 invisible), 1835 Guests and 160 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
49632 Members
64 Forums
212146 Topics
3325263 Posts

Max Online: 2605 @ 04/19/14 12:41 PM
Donate to BITOG

Topic Options
#3256421 - 01/22/14 03:02 PM MIT future lubrication direction preso.
Shannow Offline


Registered: 12/12/02
Posts: 25320
Loc: a prison island
Presentation on the early stages of a lubricant optimisation programme from the MIT.

I'm impressed with the mid stroke viscosity optimisation concept to keep the viscosity up at the stroke ends (reduced boundary lubrication), while reducing the viscosity mid stroke where full hydrodynamic is in play.

Interesting (obvious 'though) on additive concentration in aras of oil volatising off...explains why volatility is important, and why the tests ARE representative of whathappens in an engine (hint, it's not about crankcase ventilation).

http://www1.eere.energy.gov/vehiclesandfuels/pdfs/deer_2012/friday/presentations/deer12_wong.pdf

Top
#3256490 - 01/22/14 04:09 PM Re: MIT future lubrication direction preso. [Re: Shannow]
SteveSRT8 Offline


Registered: 10/10/08
Posts: 13656
Loc: Sunny Florida
Why wouldn't we eventually end up with something like Delphi/GM's patented magnetorheological fluid one day?
_________________________
"In a democracy, dissent is an act of faith."
J. William Fulbright
Best ET-12.79 @ 111 mph
4340 pounds, Street tires
Just like we go to Publix

Top
#3256493 - 01/22/14 04:10 PM Re: MIT future lubrication direction preso. [Re: Shannow]
Eddie Online   happy


Registered: 12/07/03
Posts: 6408
Loc: Florida, Cape Coral
tHANKS SHANNOW. a LARGE AMOUNT OF INFORMATION/DATA IN THE PAPER. Ops caps were on. Ed
_________________________
CX5 Touring 2.5L :-)

Top
#3256535 - 01/22/14 05:22 PM Re: MIT future lubrication direction preso. [Re: Shannow]
JAG Offline


Registered: 10/23/05
Posts: 4468
Loc: Fredericksburg, VA
I too liked the concept of differentially altering liner temps. so viscosity is increased at the ends. Polymer VIIs can have a similar effect, at least qualitatively, since temporary shear thinning is greater mid-stroke than near the ends due to the piston velocity profiles. Keep HTHS constant by lowering base oil viscosity and increasing polymer concentration. That would increase temporary shear thinning, maintain true viscosity mid-stroke and increase true viscosity near stroke ends. Thanks Shannow.

Top
#3256545 - 01/22/14 05:37 PM Re: MIT future lubrication direction preso. [Re: Shannow]
Shannow Offline


Registered: 12/12/02
Posts: 25320
Loc: a prison island
JAG, I was thinking the same in the shower this morning...about shear thinning that is.

Top