www.tdiclub.com

Economy - Longevity - Performance
The #1 Source of TDI Information on the Web!
Forums Articles Links Meets
Orders TDI Club Cards TDIFest 2016 Gone, but not forgotten VAG-Com List Unit Conversions TDIClub Chat Thank You

Order your TDIClub merchandise and help support TDIClub


Go Back   TDIClub Forums > VW TDI Discussion Areas > TDI News/Tech

TDI News/Tech This Forum is for the posting of TDI news related items.

Reply
 
Thread Tools
Old June 24th, 2008, 05:58   #1
buckeye96
Veteran Member
 
Join Date: Aug 2005
Location: Alexandria, VA
TDI(s): 2005 Jetta ?
Default BorgWarner develops new turbocharger to help reduce diesel emissions

http://www.autobloggreen.com/2008/06...-diesel-emiss/

BorgWarner develops new turbocharger to help reduce diesel emissions

BorgWarner has developed a new turbocharger design that it claims will help reduce diesel emissions. One of the methods used to reduce emissions of nitrogen oxides from diesel engines is to recirculate some of the exhaust gases (EGR). Low pressure EGR helps to reduce the combustion temperatures and thus the production of NOx. However injecting the exhaust gases upstream of the turbo compressor has caused problems in the past as the exhaust particles and high temperature of the exhaust have caused metal fatigue. Downstream injection requires higher pressures. BorgWarner has developed new materials and coatings that can better withstand low pressure EGR and resist particulate deposits on the compressor wheels. Two European manufacturers are expected to introduce the new turbochargers on their U.S. diesel engines in 2008. Volkswagen, BMW and Mercedes Benz are introducing new clean diesels this year.
buckeye96 is offline   Reply With Quote
Old June 24th, 2008, 17:33   #2
bikegeek
Veteran Member
 
bikegeek's Avatar
 
Join Date: Jun 2008
Location: Greenville,NC
Default

Good article...thanks!
__________________
Original owner of a 2000 GLS 5-speed 102k, ventectomy, panzer full metal jacket
bikegeek is offline   Reply With Quote
Old June 24th, 2008, 19:05   #3
oscarmv
Member
 
Join Date: Jan 2008
Location: West of Spookland
Default

Quote:
Originally Posted by drwho
This is all nice and everything, but I want to hear more about improving economy on diesels. Seems like a lot of sacrifices have been made in economy on some diesels for all of these new emission devices. The 6.4 Ford Powerstroke and the 6.7 Cummins diesel both have less fuel economy than the previous engines due to the extra emissions. That sophisticated exhaust on the new Jetta is probably why the economy ratings are so dismal.
Note that the dismal economy ratings for the new clean TDI are about the same as the dismal economy ratings for the previous 1.9 TDI with the new EPA testing procedure.

Still, it's nice to see with all the people sounding the alarm bells that gasoline engines will soon be the bees knees that the oil burner engineers don't stand still.
oscarmv is offline   Reply With Quote
Old June 25th, 2008, 12:15   #4
Lug_Nut
TDIClub Enthusiast
Pre-Forum Veteran Member
 
Lug_Nut's Avatar
 
Join Date: Jun 1998
Location: Sterling, Massachusetts. USA
Fuel Economy: 116 mpg(e), 36 mpg gas, 100 mpg combined
Default

Quote:
Originally Posted by buckeye96
...However injecting the exhaust gases upstream of the turbo compressor has caused problems in the past as the exhaust particles and high temperature of the exhaust have caused metal fatigue.
Their remedy to high particulates and high temperature is different turbocharger materials? Why aren't the causes being addressed instead of the resultant effect?
Seems simple enough to me, reduce the particulate and reduce the temperature by using Biodiesel.
__________________
If the quantity of carbonic acid increases in geometric progression,
the augmentation of the temperature will increase nearly in arithmetic progression.

Svante Arrhenius 1896

Cogito ergo soy (I think, therefore: Biodiesel)
Lug_Nut is offline   Reply With Quote
Old June 25th, 2008, 17:18   #5
TurbinePower
Veteran Member
 
Join Date: Dec 2005
Location: Upstate SC
TDI(s): None
Default

Quote:
Originally Posted by Lug_Nut
Their remedy to high particulates and high temperature is different turbocharger materials? Why aren't the causes being addressed instead of the resultant effect?
Seems simple enough to me, reduce the particulate and reduce the temperature by using Biodiesel.
It's probably in conjunction with DPF technology for the particulate handling capacity. Combine some materials that can handle a bit more abrasive particles than standard filtered air has with the ability to withstand higher heats... I can see it.

Still with you on that last part, though.
__________________
Quote:
Originally Posted by FL2AK-tdi
I just wish that it would stop breaking. If I could go one OCI without something breaking, I would be a huge VW fan lol.
Small stable of VWs (projects)...
'80 Dasher Diesel, full restoration in the slow burner works
'82 Quantum "Coupe" 1.6 CIS gas power, daily driver
'89 Fox wagon (Korva!), the new back porch project. Suspension and interior work in progress!
TurbinePower is offline   Reply With Quote
Old June 26th, 2008, 07:50   #6
JamesBa
Veteran Member
 
Join Date: Mar 2006
Location: Maryland
TDI(s): GOLF '02
Default

I read articles like these and laugh. Technology for better diesel engines is already available. It's just a question of getting some manufacturer to apply it.
__________________
'02 GOLF TDI
JamesBa is offline   Reply With Quote
Old June 26th, 2008, 09:14   #7
KILOFINAL
Veteran Member
 
Join Date: Aug 2006
Location: Burlington
Default dismal economy ratings on the 1.9L TDI??????

Hello McFly???.......I'm getting 1300KM on a tank of diesel.
__________________
2006 JETTA TDI
280,000
Burlington
KILOFINAL is offline   Reply With Quote
Old June 26th, 2008, 16:33   #8
EddyKilowatt
Veteran Member
 
EddyKilowatt's Avatar
 
Join Date: Mar 2006
Location: Carmel Valley CA
Default

Quote:
Originally Posted by JamesBa
I read articles like these and laugh. Technology for better diesel engines is already available.
Um, controlled auto-ignition... is that a variation on the glow plug concept?
__________________
2003 Golf GL, 5-speed. Bosio .205 injectors, balanced by DbW. Mobil ESP 5W-30 oil.
EddyKilowatt is offline   Reply With Quote
Old June 27th, 2008, 05:42   #9
JamesBa
Veteran Member
 
Join Date: Mar 2006
Location: Maryland
TDI(s): GOLF '02
Default controlled auto-ignition

Quote:
Originally Posted by EddyKilowatt
Um, controlled auto-ignition... is that a variation on the glow plug concept?
Hey, if it works better, that's all I care about.
__________________
'02 GOLF TDI
JamesBa is offline   Reply With Quote
Old June 28th, 2008, 09:19   #10
DieselDub
Member
 
Join Date: Oct 2001
Location: Canada
Default

you thought intake manifold coking was irritating, now it's going to jam up the intercooler!
DieselDub is offline   Reply With Quote
Old July 10th, 2008, 10:35   #11
Ski in NC
Veteran Member
 
Join Date: Jul 2008
Location: Wilmington, NC USA
Fuel Economy: 48-52 typical
Default

I don't get it. Why not take egr supply from downstream of DPF? Then no particulates go into turbo, intercooler and engine. If heat is a problem, run it through a cooler before mixing with inlet air.

This must be for non-DPF engines, which does not apply to VW's. -Eric
__________________
2001 Jetta TDI 5sp Stock 201k mi
1981 Rabbit IDI 4sp Sold at 339k mi
1990 S-10 4.3 4wd 5sp 154k mi
1986 VW Pathfinder 1.6 45hp Marine 4700 Hrs
2001 Cummins 8.3 420hp Marine 1660Hrs..REFIT DONE!!
Ski in NC is offline   Reply With Quote
Old July 10th, 2008, 10:43   #12
linewarbr
Member
 
linewarbr's Avatar
 
Join Date: Dec 2007
Location: Friendswood, TX
Default

Quote:
Originally Posted by micky0604
Great!--------------------------------------------------------This is really fantastic.I have never seen such a good thing.You may be a genius.I am honoured to appreciate the excellent work.Feel very excited.warcraft power leveling warcraft power leveling world of warcraft power leveling wow power leveling wow powerleveling---------------------------------------------------------You will make a brilliant achievement!!!

What in the heck is all of this foolishness here?
__________________
In this war of lines, so many have been crossed. Where will it all stop?
2007 Jeep Grand Cherokee CRD (mine)
2014 Passat TDI SE DSG (wife's, bought back Feb 2017)
linewarbr is offline   Reply With Quote
Old July 10th, 2008, 11:04   #13
jvance
Veteran Member
 
Join Date: May 2008
Location: Private
Default

Quote:
Originally Posted by linewarbr
What in the heck is all of this foolishness here?
Comment spam. Can we get an IP ban here?
jvance is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

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


All times are GMT -7. The time now is 20:02.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
Copyright - TDIClub Online LTD - 2017
Contact Us | Privacy Statement | Forum Rules | Disclaimer
TDIClub Online Ltd (TDIClub.com) is not affiliated with the VWoA or VWAG and is supported by contributions from viewers like you.
1996 - 2020, All Rights Reserved
Page generated in 0.17858 seconds with 10 queries
[Output: 111.52 Kb. compressed to 92.96 Kb. by saving 18.56 Kb. (16.64%)]