Diesel Particulate Filter

[Mark.Smith]

What does one look like? Do the 2005s have them? The reason I'd like to know is the latest issue of TDR has an interesting article on oil and ULSD.

 

[TSpecht]

They should not appear on vehicles produced before Jan 1 2007, since that's when the new regs kick in. Just one more item in the list of things I'm thankful for...

 

[Prairie Dog]

If I understand correctly, these things use the engine oil to filter out soot particles. Can you imagine how fast this will dirty your eng oil? It's going to be especially bad for those running any extra fueling. I'll bet the P-trap is gonna be the first thing to go on bombed trucks!



Scotty

 

[redram]

If I understand correctly, these things use the engine oil to filter out soot particles. Can you imagine how fast this will dirty your eng oil? It's going to be especially bad for those running any extra fueling. I'll bet the P-trap is gonna be the first thing to go on bombed trucks!



Scotty

I don't think so not motor oil - it will inject diesel fuel to 'burn' or turn to ash asny trapped particulate... ... at least not if it's anything like a Class 5 or Class 8 particulate diesel filter.



Here is the info on a catalyst diesel exhaust filter

Diesel Oxidation Catalyst







Engineered for retrofit to meet tough clean air standards, the Diesel Oxidation Catalyst breathes new life into diesel engine exhaust systems with EPA-verified technology and proven on-the-road success.



Efficient Emission Control



Reducing emissions from diesel exhaust doesn't have to be complicated. Cummins Emission Solutions makes it simple with a Diesel Oxidation Catalyst (DOC) designed to retrofit existing vehicles. Easy to install and maintenance-free, the DOC is reducing emissions from on-road vehicles and off-road equipment around the globe, cost-effectively and efficiently.



The DOC may either replace or be added to the existing vehicle muffler, and may be applied to a wide variety of diesel engines. Versatile and flexible, the DOC:



* Easily installs

* Needs no maintenance

* Requires no monitoring

* Can be used with low-sulfur (<500 ppm) or ultra-low sulfur diesel fuels (<50 ppm)

* Is available in a variety of shapes and sizes

* Readily adapts to many applications

* Cannot be used with lube oil blending systems

* May be used in a catalytic exhaust muffler to reduce noise as well as emissions



Retro Fits!

Emission Solutions has vast experience in retrofitting a variety of applications:



Retro Fits

* Urban Transit Buses

* School Buses

* Refuse Collection Vehicles

* Government Fleets

* Off-highway Equipment

* Private Fleets



Connect to a World of Diesel Expertise

Emission Solutions provides technologies to protect your engine and keep it running clean and strong. We are committed to developing superior products that meet or surpass emission regulations. Supported by the Cummins North American distributor network and Fleetguard worldwide, our systems bring real value to you -- from installation through the life of the product. From funding options for retrofit projects to providing support years down the road, we're with you for the long haul.



Choose the emission-reduction leader backed by a legacy of technology for your complete fleet needs. Choose Emission Solutions.



For more information contact Customer Assistance at 1-800-22-Filter(1-800-223-4583) or fax 1-800-999-8664







Here is the diesel particulate filter

Diesel Particulate Filter







Designed for retrofit, Cummins Emission Solutions diesel particulate filter uses EPA-verified Continuously Regenerating Technology® that removed up to 85% of particulate matter emissions.



Designed for retrofit, Emission Solutions diesel particulate filter uses EPA-verified Continuously Regenerating Technology® that removed up to 85% of particulate matter emissions.



Meeting Tomorrow's Air Quality Standards Today

The road to clean air regulation compliance is crowded with options that promise to help you meet them. Emission Solutions can guide you to verified technologies proven to reduce allowable diesel emissions.



Our diesel particulate filter uses Johnson Matthey's patented Continuously Regenerating Technology (CRT®), among the first verified for the EPA's voluntary retrofit program. It has become the industry standard for heavy-duty diesel retrofit technology. The next generation Catalyzed Continuously Regenerating Technology (CCRT®) retrofit system works for lower-temperature application, where other systems stop cold.



Performance Engineered

The CRT and CCRT systems trap and oxidize soot before turning it to ash. Designed as a complete muffler replacement unit, our modular system is easy to install and maintain.



To ensure optimum performance of the filter and engine, the diesel particulate filter system monitors engine pressure and temperature. Controls in the cab alert operators when backpressure is high and the filter needs cleaning.



The CRT and CCRT retrofit systems are fully engineered and tested, and include:





* Filter

* Monitor

* Engine derate logic option

* Sensors

* Wiring loom

* Noise control

* Exhaust piping

* Mounting brackets

* Water Protection



Technology that Works

Our CRT and CCRT filter products are verified retrofit technologies that deliver results for a wide range of diesel engines. They are easy to install and are designed within the original engine maximum backpressure limits.



CRT and CCRT System Application Guidelines

Achieves maximum emission reduction with ultra-low sulfur (<50 ppm) diesel fuel

Requires exhaust temperatures of 240° Celsius at least 40% of CRT filter operating time (data logging required to determine exhaust temperature)

Requires exhaust temperatures of 200° Celsius at least 40% of CCRT filter operating time (data logging required to determine exhaust temperature)

Applies to 1994 and newer diesel engines including some EGR engines

Applies to a wide range of diesel engines



Connect to a World of Diesel Expertise

Emission Solutions provides technologies to protect your fleet and keep it running clean and strong. We are committed to developing superior products that meet or surpass emission regulations. Supported by the Cummins North American distributor network and Cummins worldwide, our systems bring real value to you -- from installation through the life of the products. From funding options for retrofit projects to providing support years down the road, we're with you for the long haul.



Choose the emission-reduction leader back by the Cummins legacy of technology for your complete engine needs. Choose Emission Solutions.



For more information, contact Customer Assistance at 1-800-22-FILTER (1-800-223-4583) or fax 1-800-999-8664.



Here is Mack Trucks





EPA '07 Information



New emissions regulations for the trucking industry take effect in the U. S. in 2007. Emissions from diesel engines produced on or after January 1, 2007 must be reduced for nitrogen oxides (referred to as NOx) by 50% and particulate matter (PM) emissions must be reduced by 90%. PM is also known as soot.





A typical diesel-powered heavy-duty truck equipped with an engine that meets the 2007 emissions standards will emit approximately 1200 pounds less NOx and 90 pounds less PM each year than pre-2007 trucks.





These reductions are the latest in a string of increasingly strict emissions reductions the truck industry has met during the last two decades. The end result is significantly cleaner air for everyone, while still providing the efficient transportation our customers require.



Mack will meet the new emissions limits with two tested and proven technologies: High Efficiency Exhaust Gas Recirculation (HEGR) and a Diesel Particulate Filter (DPF).





Mack's Solution:



HEGR will be used to control and reduce NOx formation, while the DPF will trap PM. The end result will be significantly cleaner engines.





Mack is offering two arrangements of a catalyzed DPF - the Mack Capsule or Mack Cap DPF shown here, as well as a vertical back-of-cab (VBOC) arrangement. A noncatalyzed DPF is also available, primarily for refuse applications.





The third element of the 2007 diesel emissions reduction challenge is a new fuel formulation: ultra-low sulfur diesel fuel (ULSD). ULSD, with only 15 parts per million of sulfur, is necessary for the efficient functioning of the DPF. The new fuel will be required for use in all highway trucks in the U. S. and will be introduced in late 2006.

 

[gtobey]

What does one look like? Do the 2005s have them? The reason I'd like to know is the latest issue of TDR has an interesting article on oil and ULSD.

Here's a "nutshell" of info about DPFs:



The DPF looks like the catalytic converter, only it is different in that it is like a labyrinth of ceramic material with a coating to trap the soot in the exhaust after the converter. Sometimes, both are included in one unit, sometimes not. We have been selling MSHA approved units for years at our work for underground mining applications on diesel engines, and now they are coming out of the ground. In a vehicular application, they must be "regenerated" or "cleaned of soot" according to the amount of backpressure built up in the exhaust system as they get clogged up with soot. The regeneration process must be automatic and keep the engine within the emissions limits set forth. However, this regeneration process must use extra fuel to generate heat to "burn" the soot off of the DPF and return it to the proper backpressure in the exhaust system. The number of regeneration cycles required depends on the way the engine is run, the load, and a host of other factors. The sensors in the exhaust system along with the program in the ECM/PCM will tell it when and how to regenerate itself. If merely "loading" the engine via the variable geometry turbo does not create enough extra exhaust heat to regenerate the DPF, then an extra nozzle for spraying ignited fuel onto the filter inside the DPF would be required. Vehicle engines do not operate at constant speeds and constant loads like industrial engines do, so with all the up and down hills, acceleration and decelerations, idling, etc. , vehicle DPFs tend to clog more quickly. The regeneration process gets rather complicated... .



Does that help? If you need more info, I have pictures, etc at work, and if you want, you can PM or email me and I'll send what I have... . Best wishes...

 

[gtobey]

DPF link that may be easier

Here's a good link with lots of information:



Donaldson DPF

 

[Prairie Dog]

Well it's good to know my source was probably wrong, I hated the sund of the whole idea. Sounds like the new rigs may use a little more fuel to keep the P-trap clean though...

 

[Mark.Smith]

Thanks for the replies. I have a oval shaped buldge after the turbo and before the muffler that I thought was some sort of resanator, at least it doesn't look like any cat I've ever seen. The article said to use CJ4 oils if you don't have a DPF since there's more anti wear additives in it.