V12 TDI might live on in Bentleys
- Thread starter TDIMeister
- Start date
pleopard
Veteran Member
In large part thanks to CR fuel systems, piezo injectors, and DPFs. Thank you Siemens and Bosch!
http://www.greencarcongress.com/2005/11/siemens_and_bos.html
- and even more precise injectors are on the way http://www.conti-online.com/generator/www/com/en/continental/pressportal/themes/press_releases/3_automotive_group/powertrain/press_releases/pr_20110316_iku_innovationspreis_en.html
http://www.greencarcongress.com/2005/11/siemens_and_bos.html
- and even more precise injectors are on the way http://www.conti-online.com/generator/www/com/en/continental/pressportal/themes/press_releases/3_automotive_group/powertrain/press_releases/pr_20110316_iku_innovationspreis_en.html
TDIMeister
Phd of TDIClub Enthusiast, Moderator at Large
Cylinder deactivation would be a perfect complementing technology.
pleopard
Veteran Member
in a 4 cylinder TDI? 
TDIMeister
Phd of TDIClub Enthusiast, Moderator at Large
Last I created this thread, it was about the V12.
pleopard
Veteran Member
Yes, you created it. Sorry for being a jokester.
wolfskin
Veteran Member
Ahem, Continental, since a few years. We're not supposed to speak that name anymore, y'now.
To the point, I'm not sure about a diesel Continental (the car model, now), but the Mulsanne could definetely use that monster torque. That thing's a cruiseship of a car, and even the low rumbling of a big TDI would suit it well.
wolfskin
Veteran Member
I'm told they do that already in the Mulsanne's engine (petrol V8).
So if they fit a diesel, they might want to keep that catchy marketing line.
TDIMeister
Phd of TDIClub Enthusiast, Moderator at Large
Cylinder deactivation benefits Diesels in ways that are different than petrol ones. A conventional petrol engine running at low loads has the throttle almost closed, incurring a great deal of pumping losses. Diesels don't (conventionally) have throttles, so pumping losses at low load are not such an issue and therefore there's little to be gained there. However, with half the cylinders disabled, those remaining cylinders that are firing operate at higher load. Some savings can be achieved by having more beneficial conditions for aftertreatment (higher EGT, higher EGR tolerance, less exhaust oxygen content), which result in requiring less frequent active DPF regeneration cycles (better fuel efficiency) and lower AdBlue consumption for the SCR.
MonsterTDI09
TDIClub Enthusiast, Veteran Member
- Joined
- Jul 3, 2009
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- TDI
- 2010 Jetta DSG/ up keep on 2009 Jetta DSG 2006 Jetta Pag 2 in North SEA Green
Does the CR already have a type cylinder deactivation? Where It monitors the compression and temp then it adjust how much and when to inject fuel into each cylinder?
TDIMeister
Phd of TDIClub Enthusiast, Moderator at Large
As described above, this is not cylinder deactivation. It can be readily realized with the CR injection system, but to get the full benefits, cylinder deactivation must include a valvetrain that will keep all the valves of the deactivated cylinders completely closed throughout the cycle.