exhaust in (soot, carbon monoxide, hydrocarbons)

trapped soot

exhaust out

ceramic honeycomb with wall support catalyst

E M I S S I O N S C O M P O N E N T

diesel particulate Filter (dpF)

aFtertreatment system

enGine

cell pluGs

demand support. anywhere.Detroit Diesel goes above and beyond to make sure you’re covered. With unmatched parts availability, factory-certified technicians and more than 800 authorized service outlets in North America, you’re never alone out there.

learn more about our unparalleled support by visiting www.detroitdiesel.com today.

aFtertreatment system

aFtertreatment system

E M I S S I O N S C O M P O N E N T

ddc-emc-bro-0007-1207. Specifications are subject to change without notice. Detroit Diesel Corporation is registered to ISO 9001:2001. Copyright © Detroit Diesel Corporation. All rights reserved. Detroit Diesel Corporation is a Daimler company.

For more information, call 1-800-445-1980. www.detroitdiesel.com

aFtertreatment system

EXTENSIVE CLEANING. SUPERIOR MAINTENANCE. reman exchange program

What if the DPF needs extensive service or it’s time for a more rigorous cleaning? That’s where the reliabilt® Reman Exchange program comes in. Your DPF is replaced with our signature reliabilt® brand, while the old core is sent back to our factory for a proprietary, environmentally-friendly, extensive washing service. Because our product design allows ash removal using a liquid washing process, the cleaning is a proprietary washing process that’s available only with Detroit Diesel Particulate Filters. The necessary time, equipment and facilities required to complete this type of cleaning lend themselves to availability as a remanufactured product, so you have all the benefits of a genuine Detroit Diesel remanufactured part.

EPA EMISSIONS LAWS ARE IN PLACE. WE’RE READY. When EPA ’07 requirements grew more stringent to protect the environment, Detroit Diesel shifted into high gear. We enhanced our Exhaust Gas Recirculation system. We developed an innovative Aftertreatment System. And, with both, we significantly reduced exhaust emissions.

an aftertreatment system based on proven technology

Detroit Diesel’s new Aftertreatment System relies on the history of an already proven controller: the Detroit Diesel Electronic Control (DDEC®) VI. DDEC

VI manages the engine and Aftertreatment System, which consists of the Aftertreatment Device (ATD), Fuel Doser Valve, Intake Throttle Valve and Doser Block Assembly. It creates an integrated system that replaces the traditional muffler and significantly reduces particulate emissions.

the workhorse aftertreatment device

The workhorse behind our clean emissions technology is the exhaust ATD, a two-part filter comprised of the Diesel Oxidation Catalyst (DOC) and the Diesel Particulate Filter (DPF). The primary role of the Aftertreatment System is to capture and burn off (regenerate) the particulate matter (soot) in the engine exhaust gas. It does this by capturing exhaust gas when it first enters the DOC, and oxidizing it before it flows through the DPF, a ceramic honeycomb that traps soot. Clean air then passes through the filter, and trapped soot is burned off, using exhaust heat. Sensors constantly monitor the exhaust gas temperature and system back pressure.

REGENERATION. WhATEVER IT TAkES TO GET ThE jOB DONE. passive/normal

The DOC and DPF capture and regenerate the soot on a passive or normal basis. But sometimes driving conditions won’t generate sufficient temperatures to burn off soot. That’s when active regeneration kicks in, using a tiny amount of fuel to burn off trapped soot.

active

When it’s needed, the DDEC VI activates two key upstream systems that assist in the active regeneration process. The first is an Intake Throttle Valve, activated to help increase the Aftertreatment Device temperature and speed regeneration. The second system is the Dosing System. The Dosing System injects a mist of diesel fuel into the exhaust system to increase and maintain the Aftertreatment Device temperature. The active regeneration process takes place during the normal operation cycle of the vehicle, and does not affect performance or control for the driver.

stationary

In a small number of specific engine duty cycles, DDEC VI may not be capable of completing an active regeneration. In these situations, a DPF dash lamp illuminates, indicating to the driver that a stationary regeneration may be needed. Since the driver initiates the process, the lamp gives a grace period, allowing the stationary regeneration to take place when it’s most convenient. Once initiated, the process takes about 30 minutes to complete.

detroit diesel: driVinG technoloGy.

MAINTENANCE REQUIREMENTS. FEW AND FAR BETWEEN.

ultra low sulfur diesel Fuel

When catalytic converters were added to passenger cars in the 1970’s, fuel requirements changed to protect the device by removing lead from gasoline.

In 2007, a similar change was required for diesel fuel to protect the Aftertreatment System. The new requirement lowered sulfur content to less than 15 parts per million. Today, Ultra Low Sulfur Diesel Fuel is in pumps across the nation.

cJ-4 oil

The Diesel Particulate Filter regenerates combustible soot, but the ash (a product of the oil lubricant package) slowly accumulates

in the channels of the filter. In 2007, oil manufacturers began producing a new oil formulation, Cj-4. With less than 1.0 wt. % sulfated ash, Cj-4 oil helps extend Diesel Particulate Filter maintenance intervals to get the most from your engine and Aftertreatment System.

diesel particulate Filter maintenance

Ash that accumulates in the filter eventually will cause an increase in exhaust back pressure. The DDEC VI constantly monitors this accumulation, and forecasts the approximate time until DPF ash

cleaning is required. DDEC VI stores this information and makes it accessible via the Detroit Diesel Diagnostic link, allowing you to plan for the DPF ash-cleaning interval. If you don’t perform ash cleaning proactively and the back pressure increases beyond the system limit, DDEC VI flags the amber warning lamp on the dash to notify that it’s time for an ash cleaning. how often is Diesel Particulate Filter maintenance required? For most vehicle applications and duty cycles, after approximately 150,000 to 400,000 miles of operation.

Detroit Diesel’s experience servicing and cleaning Diesel Particulate Filters began when we sold the first retrofit filters in 2000. Since then, our organization has emphasized the importance of integrating maintenance and product design for our Diesel Particulate Filter. With the support of the Daimler network of research and development partners, we work hard to make sure you have the comfort of a proven maintenance strategy. And our Aftertreatment Device is designed for easy maintenance. just remove the two bands on either side of the Diesel Particulate Filter section and remove it to clean or exchange. That’s it. Studies have shown the best cleaning results and the lowest overall service time are gained by removing the Diesel Particulate Filter from the vehicle, and it takes about 30 minutes for most vehicle applications.

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