Recent Topics
79 ford ltd rear main
by sasha
11/01/14 05:48 AM
Mobil 1 HM or Maxlife full synthetic?
by oilmaven
11/01/14 04:56 AM
Mobil 5000 5w30 Or Super Tech 5w30
by crazyoildude
11/01/14 01:59 AM
5/32 enough for Winter?
by SumpChump
10/31/14 11:52 PM
Noise from front wheel area
by weebl
10/31/14 11:31 PM
Need advice.
by joyridin83
10/31/14 11:06 PM
Amsoil SVG or Valvoline synpower 75w90
by donnyj08
10/31/14 10:54 PM
Kia oil control valve
by Propflux01
10/31/14 10:16 PM
Avalanche power steering cooler
by spasm3
10/31/14 09:58 PM
Sharp 42" LED 1080p/120Hz - $299
by mrsilv04
10/31/14 09:50 PM
brake squeak left turn.
by wrcsixeight
10/31/14 09:40 PM
Sgt. Tamoressi released
by FL_Rob
10/31/14 09:09 PM
Newest Members
joyridin83, NH73, Blkflg, steam_soldier, Ben_SC
51763 Registered Users
Who's Online
29 registered (05LGTLtd, dishdude, Char Baby, CapriRacer, d00df00d, CB900F2, 2 invisible), 591 Guests and 165 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
51763 Members
64 Forums
221501 Topics
3502783 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: 26890
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: 15181
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: 6771
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: 4532
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: 26890
Loc: a prison island
JAG, I was thinking the same in the shower this morning...about shear thinning that is.

Top