Posted On: 02/08/2016 12:16:04 AM
Post# of 3601
On the Coates website, they identify the advantages of their CSRV system. Just looking at the emissions aspect, I have concerns regarding their claims/suggestions, as the diesel engine (and diesel fuel) for US and Europe has gone through a series of emissions of improvements. The particle size and content has been reduced through government initiatives by ~90% over the last 15-20 years. Engine manufacturers must meet Tier IV requirements in Europe/US. Link to a Cummins website for some Tier IV details....
http://cumminsengines.com/tier-4-above-173-faq
Other industrial areas may not be as aggressive in their requirements (ie - India/China, etc) and this may be where Coates is suggesting they'll have massive emissions improvements. Also, they were comparing their test results against an engine without an EGR system (which plays a prominent role in emissions reductions).
I'm not calling Coates' claims untrue, but I think the basis for comparison needs to be clearly identified from where they get their figures and whether their system would allow the engine to meet the Tier IV requirements without the need for an EGR system. If yes, that is a significant win as EGR systems are costly.
There's certainly other areas where their system seems to be a significant improvement (fuel economy, reduction in number of valve train components, etc) from what their website details.
Regards,
-kbulldog.
http://cumminsengines.com/tier-4-above-173-faq
Other industrial areas may not be as aggressive in their requirements (ie - India/China, etc) and this may be where Coates is suggesting they'll have massive emissions improvements. Also, they were comparing their test results against an engine without an EGR system (which plays a prominent role in emissions reductions).
I'm not calling Coates' claims untrue, but I think the basis for comparison needs to be clearly identified from where they get their figures and whether their system would allow the engine to meet the Tier IV requirements without the need for an EGR system. If yes, that is a significant win as EGR systems are costly.
There's certainly other areas where their system seems to be a significant improvement (fuel economy, reduction in number of valve train components, etc) from what their website details.
Regards,
-kbulldog.
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