Recent Topics
1997 Ford Explorer 4.0 sohc Castrol Edge 0w40
by jfug97
21 minutes 49 seconds ago
2008 Trailblazer SS - second UOA with high Fe
by Fulton 1
44 minutes 14 seconds ago
Valvoline Blue 15w40 - 11,410 miles - 2014 RAM HD
by Artem
52 minutes 57 seconds ago
AW - Concentration or Total Amount Available?
by Peter_M
Today at 05:16 PM
1996 Dodge 5.9L Cummins | T6 5w-40| 9,830 Miles
by madibob
Today at 05:09 PM
2002 Tacoma 3.4L 5VZFE | M1 5W40 TDT |9,764 Miles
by madibob
Today at 04:48 PM
4 Ball Test...
by 1bioguy
Today at 04:26 PM
Bought a used truck. Oil recommendation :)
by 2012AccentSE
Today at 03:06 PM
Which oil would you choose?
by Noobie
Today at 03:03 PM
what are the different names for a tow truck?
by Vikas
Today at 02:50 PM
2004 Expedition trans fluid and diff oil
by Thebuckaman
Today at 02:48 PM
Big News!! The chicken is safe!
by andrewg
Today at 02:40 PM
Newest Members
gg1, kosoku, fireaxxe, studmann04, Damspele
52202 Registered Users
Who's Online
107 registered (1bioguy, AandPDan, abycat, 2010_FX4, 19jacobob93, 2009Edge, 13 invisible), 1408 Guests and 186 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
52202 Members
66 Forums
223572 Topics
3544583 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG
Topic Options
#3256421 - 01/22/14 03:02 PM MIT future lubrication direction preso.
Shannow Online   content


Registered: 12/12/02
Posts: 27265
Loc: a prisoner 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: 15403
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 Offline


Registered: 12/07/03
Posts: 6843
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: 4548
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 Online   content


Registered: 12/12/02
Posts: 27265
Loc: a prisoner island
JAG, I was thinking the same in the shower this morning...about shear thinning that is.

Top