Approval Details

Valid E.O.

Validity

This Executive Order approved the specified parts on on May 31, 2000.
As of Monday, June 24th, 2019 this Executive Order has not been overturned or superceeded.

Approved Parts

Part NumberModelsModification
000416088 000416909 000415808 001991-2000 Cummins B-series and ISB diesel engines (all horsepower)This exemption is applicable to 1991-2000 model-year engines originally certified to meet a particulate matter emission standard of 0.10 g/bhp-hr or lower. Use of the DPX Catalyzed Soot Filter requires that the diesel engines must be operated using diesel fuel with a maximum sulfur content of 50 ppm by weight.

This Executive Order may be listed as:
  • C.A.R.B.E.O. D-384-5
  • Executive Order 384-5 / D384-5
  • ARB # D-384-5
  • Executive Order No: D-384-5
  • C.A.R.B. No. D-384-5
  • Resolution D-384-5
For Free CARB Executive Order Status verification, email an image of the device Executive Order label as well as the Year/Make/Model and Test Group # of the vehicle to [email protected]

Download: Executive Order D-384-5 PDF

D-384-5 Document:



                                       State of California
                                  AIR RESOURCES BOARD


                             EXECUTIVE ORDER D—384—5
                      Relating to Exemptions Under Section 27156
                                      of the Vehicle Code

                                 ENGELHARD CORPORATION
                                DPX CATALYZED SOOT FILTER


Pursuant to the authority vested in the Air Resources Board (ARB) by Section 27156 of
the Vehicle Code; and

Pursuant to the authority vested in the undersigned by Sections 39515 and 39516 of the
Health and Safety Code and Executive Order G—45—9;

IT IS ORDERED AND RESOLVED: That installation of the DPX Catalyzed Soot Filter,
manufactured by Engelhard Corporation of 101 Wood Avenue, P.O. Box 770, Iselin,
New Jersey 08830—0770, has been found not to reduce the effectiveness of the
applicable vehicle pollution control system, and therefore, the DPX Catalyzed Soot Filter
is exempt from the prohibitions of Section 27156 of the Vehicle Code for installation on
heavy—duty vehicles equipped with the diesel engines listed below.

This exemption is applicable to 1991 through 2000 model—year engines originally
certified to meet a particulate matter emission standard of 0.10 grams per brake—
horsepower—hour or lower. Use of the DPX Catalyzed Soot Filter requires that the
diesel engines must be operated using dlesel fuel with a maximum sulfur content of 50
parts per million by weight.




                                                                       000416088, 000416909,
    1991—2000    Cummins           B—Series, ISB (all horsepower)
                                                                       000415808, 000416182

    1993—2000    Cummins         M11, C—Series, ISC (all horsepower)   %%%i}%%%% %%%‘;11%91%%
    1998—2000     Cummins               ISM (all horsepower)           %%%fl%%%% %%%?1%3%%
    1993—2000       poc              Series 50 (all horsepower)        %%%‘;11%%%88' %%%111%3%92'
    1994—2000       DC               Series 60 (all horsepower)        000415808, 000416650

                                                                       000416088, 000416909,
    1994—2000   International          530E (all horsepower)           000415808, 000418182


 ENGELHARD CORPORATION                                        EXECUTIVE ORDER D—384—5
 DPX CATALYZED SOOT FILTER                                    (Page 2 of 3)


 This exemption is based on emission tests conducted by Engelhard Corporation with
 the DPX Catalyzed Soot Filter. Engethard Corporation submitted the following results:




        1    1999     Cummins              ISB    ~63      ~87        0        —96

        2    1998       DDC          Series 60    ~100     —96        —6       —99

        3    1998    International    530E       . —100    —93       ~10       ~100



— The test data show that the DPX Catalyzed Soot Filter does not adversely affect the
  exhaust emissions of the test engines. The same emission impact is expected when
  the DPX Catalyzed Soot Filter is installed on heavy—duty vehicles equipped with any of
 the engines listed above.             ‘

 This Executive Order is valid provided that installation instructions for the DPX
 Catalyzed Soot Filter do not recommend tuning the vehicle to specifications different
 from those of the vehicle manufacturer.

 Changes made to the design or operating conditions of the DPX Catalyzed Soot Filter,
 as exempt by the ARB, which adversely affect the performance of the vehicle‘s pollution
 control system, shall invalidate this Executive Order.

 Marketing of the DPX Cétalyzed Soot Filter using identification other than that shown in
 this Executive Order or for an application other than that listed in this Executive Order
 shall be prohibited unless prior approval is obtained from the ARB.

 This Executive Order shall not apply to any DPX Catalyzed Soot Filter advertised,
 offered for sale, sold with, or installed on a motor vehicle prior to or concurrent with
 transfer to an ultimate purchaser.

 This Executive Order does not constitute any opinion as to the effect the use of the
 DPX Catalyzed Soot Filter may have on any warranty either expressed or implied by the
 vehicle manufacturer,

 No claim of any kind, such as "Approved by the Air Resources Board," may be made
 with respect to the action taken herein in any advertising or other oral or written
 communication.


ENGELHARD CORPORATION                                      EXECUTIVE ORDER D—384—5
DPX CATALYZED SOOT FILTER               j                  (Page 3 of 3)


In addition to the foregoing, the ARB reserves the right in the future to review this
Executive Order and the exemption provided herein to assure that the exempted add—on
or modified part continues to meet the standards and procedures of California Code of
Regulations, Title 13, Section 2222, et seq.

THIS EXECUTIVE ORDER DOES NOT CONSTITUTE A CERTIFICATION,
ACCREDITATION, APPROVAL, OR ANY OTHER TYPE OF ENDORSEMENT BY THE
AIR RESOURCES BOARD OF ANY CLAIMS OF THE APPLICANT CONCERNING
ANTI—POLLUTION BENEFITS OR ANY ALLEGED BENEFITS OF ENGELHARD
CORPORATION‘S DPX CATALYZED SOOT FILTER.

Violation of any of the above conditions shall be grounds for revocation of this Executive
Order. The Executive Order may be revoked only after a ten—day written notice of
intention to revoke the Executive Order, in which period the holder of the Executive
Order may request in writing a hearing to contest the proposed revocation. If a hearing
is requested, it shall be held within ten days of receipt of the request, and the Executive
Order may not be revoked until a determination after a hearing that grounds for
revocation exist.                                                         ©

Executed at El Monte, California, this _3 121     day of May 2000.



                                      @« %«\/ Lor.
                                       R. B. Summerfield, Chief
                                       Mobile Source Operations Division


                                   State of California
                              AIR RESOURCES BOARD




              EVALUATION OF ENGELHARD CORPORATION‘S
                      DPX CATALYZED SOOT FILTER
       FOR EXEMPTION FROM THE PROHIBITIONS OF VEHICLE CODE
    SECTION 27156 IN ACCORDANCE WITH SECTION 2222, TITLE 13 OF THE
                   CALIFORNIA CODE OF REGULATIONS




                                       May 2000




                                           by
                          Mobile Source Operations Division
                               Aftermarket Parts Section
                                 9528 Telstar Avenue
                               El Monte, CA 91731—2990


(This report has been reviewed and approved for publication by the staff of the
California Air Resources Board. Approval does not signify that the contents necessarily
reflect the views and policies of the Air Resources Board. Mention of trade names or
commercial products does not constitute endorsement or recommendation for use.)


                                       SUMMARY

          Engelhard Corporation of 101 Wood Avenue, P. O. Box 770, Iselin, New Jersey

08830—0770 has applied for an exemption from the prohibitions of Section 27156 of the

California Vehicle Code for their DPX Catalyzed Soot Filter. The DPX Catalyzed Soot

Filter is designed for installation on heavy—duty vehicles equipped with various model

Cummins Engine Company, Inc., Detroit Diesel Corporation, and International Truck

and Engine Corporation diesel engines. This exemption is applicable to 1991 through

2000 model—year engines originally certified to meet a particulate matter.emission

standard of 0.10 grams per brake—horsepower—hour or lower. Use of the DPX —Catalyzed

Soot Filter requires that the diesel engines must be operated using diesel fuel with a

maximum sulfur content of 50 parts per million by weight.

          Based on the test data submitted by Engelhard Corporation, the staff concludes

that the DPX Catalyzed Soot Filter will not adversely affect the exhaus@ emissions of the

heavy—duty diesel engines for which the exemption is requested.

          The staff recommends that Engelhard Corporation be granted an exemption for

their DPX Catalyzed Soot Filter as requested and that Executive Order No. D—384—5 be

issued.


                           CONTENTS


                                         Page Number


SUMMARY

CONTENTS

1.    INTRODUCTION

II.   CONCLUSION

1.    RECOMMENDATION

IV.   DEVICE DESCRIPTION AND OPERATION

V.    DEVICE EVALUATION AND DISCUSSION


                                   State of California
                                AIR RESOURCES BOARD

              EVALUATION OF ENGELHARD CORPORATION‘S
                       DPX CATALYZED SOOT FILTER
        FOR EXEMPTION FROM THE PROHIBITIONS OF VEHICLE CODE
     SECTION 27156 IN ACCORDANCE WITH SECTION 2222, TITLE 13 OF THE
                    CALIFORNIA CODE OF REGULATIONS




I.      INTRODUCTION

        Engelhard Corporation (Engelhard) of 101 Wood Avenue, P. 0. Box 770, Iselin,

New Jersey 08830—0770 has applied for an exemption from the prohibitions of Section

27156 of the California Vehicle Code for their DPX Catalyzed Soot Filter. The DPX

Catalyzed Soot Filter is designed for installation on heavy—duty vehicles equipped with

the following diesel engines:

        {1)    1991—2000 model—year Cummins B—series and 1SB, all horsepower
        (2)    1993—2000 model—year Cummins M11, C—series, and ISC, all horsepower
        (3)    1998—2000 model—year Cummins ISM, all horsepower
        (4)    1993—2000 model—year DDC Series 50, all horsepower
        (5)    1994—2000 model—year DDC Series 60, all horsepower
        (6)    1994—2000 model—year International (Navistar) 530E, all horsepower

This exemption is applicable to 1991 through 2000 model—year engines originally

certified to meet a particulate matter (PM) emission standard of 0.10 grams per brake—

horsepower—hour (g/bhp—hr) or lower. Use of the DPX Cataly;ed Soot Filter requires

that the diesel engines must be operated using diesel fuel with a maximum sulfur

content of 50 parts per million (ppm) by weight. This exemption includes five different

DPX filter sizes designed for engines with rated horsepowers between 100 and 600. All

of the filters are.coated with catalyst formulation MEX—003.


         Engelhard has submitted all the required information including emission test

data, vehicle operating temperature data, in—use durability information, installation and

maintenance procedures, and device identification label for evaluation.




I1.     CONCLUSION

         Based on evaluation of the test data submitted by Engelhard, the staff

concludes that the DPX Catalyzed Soot Filter will not adversely affect the exhaust

emissions of the heavy—duty diesel engines for which the exemption is requested.



I1.      RECOMMENDATION

        The staff recommends that Engelhard be granted an exemption as requested,

permitting advertisement, sale, and use of their DPX Catalyzed Soot Filter on the 1991

through 2000 model—year heavy—duty diesel engines listed above.



IV.      DEVICE DESCRIPTION AND OPERATION

         Engelhard‘s DPX Catalyzed Soot Filter is an exhaust emission control device

designed primarily to reduce PM emissions from diesel engines. In general, it is

instailed in place of the original equipment manufacturer (OEM) muffler. The DPX filter

consists of a cordierite wall—flow filter substrate coated with precious metal catalysts.

The filter substrate is porous and has alternating cells which are plugged, forcing the

exhaust gas to flow through the cell wall where the PM in the exhaust gas is captured or

trapped. The captured PM is then burned off or oxidized by the catalyst coating,

cleaning or regenerating the filter substrate.

        The DPX filter contains 100 cells per square inch substrate canned in a 304


stainless steet shell of 17—millimeter wall thickness. The filter is loaded with catalyst

formulation MEX—003 and is designed for use with diesel fuel with a maximum sulfur

content of 50 ppm by weight. The five DPX filter sizes in the application are:

        (1) 10.5 inch diameter by 12 inch length: part no. 000416088 (100—300 hp)
        (2) 11.25 inch diameter by 12 inch length: part no. 000416909 (200—400 hp)
        (3) 11.25 inch diameter by 14 inch length: part no. 000415808 (200—500 hp)
        (4) 12 inch diameter by 15 inch length: part no. 000416650 (300—600 hp)
        (5) 12 inch major axis and 8 inch minor axis by 15 inch length: part no.
            000416182 (100—400 hp)


        For the DPX filter to operate properly, it must be designed to correctly match

the specific engine and vehicle application. This entails sizing the filter based on

engine—out emissions (model—year), exhaust flow rate (engine size and rated

horsepower), engine exhaust temperature (vehicle application or duty cycle),

manufacturer specified backpressure requirements, and availability of space for the

filter. The critical issue in properfilter operation is its regenerétion—the exhaust

temperatures needed for regeneration must be achieved under various vehicle duty

cycles. In general, the exhaust temperatures at which the rate of PM collection equals

the rate of PM oxidation must be achieved for at least 40 to 50 percent of the duty cycle

to prevent plugging.

        The installation location of the DPX filter varies for different vehicle applications,

but on the average, the distance between the exhaust manifold or the turbocharger and

the filter inlet ranges from three to ten feet and may measure on the extreme from two

to 20 feet. For vehicles with dual exhaust system, a DPX filter is instailed on each of

the exhaust outlets. The installation procedures for the DPX filter are similar to the

removal and installation procedures for the muffler. Engelhard recommends that the


   DPX filter be cleaned every 12 months by blowing compressed dry air through the filter

   to remove the fubricant and oil ash. Engelhard will provide the applicable installation

   instructions and maintenance procedures for the various engine and vehicle

   applications to the vehicle operator.



   V.         DEVICE EVALUATION AND DISCUSSION

              To demonstrate that the DPX filter would not adversely affect exhaust

   emissions, Engelhard tested its filter on three different engines. Engelhard provided the

   following results:




1999     Cummins             ISB*        3 ppm        FTP**     0.30/0.11      1.510.2       3.7/3.7     0.094/0.004

1998       DDC            Series 604    15 ppm       CSHVR®      0.26/0.0°    6.81/0.29     34.5/32.4     0.211/0.003

1998    International       530E~       15 ppm       CSHVRA      ©0.48/0.0°   225/015       18.1/16.3     0.188/0.0°

   Note:      *         5.9 liter, 250 horsepower       **    Emissions in grams per brake—horsepower—hour
              A         12.7 liter, 430 horsepower      A*    Emissions in grams per mile
              ~         8.7 liter, 275 horsepower       *     Emissions were under the detectable limit of 0.000




              Test No. 1

              The Cummins ISB engine was testedvon an engine dynamometer using the

   heavy—duty diesel transient federal test procedure as set forth in Title 40, Part 86 of the

   Code of Federal Regulations. One baseline emission test was conducted with the

   engine in the OEM configuration, and one modified emission test was conducted with

   the DPX filter. The test fuel had a sulfur content of 3 ppm by weight.


        Test No. 2

        Five grocery trucks equipped with the DDC Series 60 engines were tested on a

mobile chassis dynamometer operated by the West Virginia University (WVU) using the

transient City—Suburban Heavy Vehicle Route (CSHVR). The CSHVR represents

distance—based (city and highway) drive routes (speed ranges from 0 to 45 miles per

hour) and is approximately 6.7 miles long. The baseline and modified emission results

reported are averages of emissions from the five test vehicles. Each vehicle test

included a minimum of three CSHVR test runs where the vehicle underwent a ten—

minute warm—up before each test run (no cold—start run). it should be noted that two

different sets of five test vehicles were used for the baseline and modified emission

tests. The ten test engines and vehicles were determined to be nominally identical to

each other. To facilitate collection of sufficient PM for measurement for the modified

tests, each test run consisted of a double—length, or 13.4—mile, CSHVR drive cycle. The

test fuel had a sulfur content of 15 ppm by weight.

        Test   No. 3

        Two school buses equipped with the International 530E engines were also

tested on the mobile chassis dynamometer using the CSHVR test cycle. The baseline

and modified emission results reported are averages of emissions from the two test

vehicles. Each vehicle test included a minimum of three CSHVR test runs where the

vehicle underwent a ten—minute warm—up before each test run (no cold—start run). The

same two vehicles were tested for the baseline and modified emission tests. The two

test engines and vehicles were determined to be nominally identical to each other. To

facilitate collection of sufficient PM for measurement for the modified tests, each test run

consisted of a double—length, or 13.4—mile, CSHVR drive cycle. The test fuel had a

sulfur content of 15 ppm by weight.


        Emission Evaluation

        PM removal from the exhaust stream is fixed by the physical characteristics of

the filter medium and is relatively unaffected by engine operating conditions. The

engines for which the exemption is requested have been certified to PM emission

standards ranging from 0.05 to 0.10 g/bhp—hr. To demonstrate compliance with the

emission requirements, Engelhard tested three engines, one from each manufacturer.

All of the test engines were originally certified to meet the 0.10 g/bhp—hr PM emission

standard, representing worst case in terms of engine—out PM emissions., The emission

data showed that within the 3 and 15 ppm fuel sulfur content range, there was no

adverse impact on total hydrocarbons (THC), carbon monoxide (CO), oxides of nitrogen

(NOx), or PM emissions.

        However, Engelhard has requested the exemption to include the use of a DPX

filter on engines operated using diesel fuel with a maximum sulfur content of 50 ppm.

Earlier studies have indicated that there is a direct relationship between PM emissions

and fuel sulfur level. In catalyzed particulate filters such as the DPX filter, sulifur in the

exhaust is oxidized by the catalyst to form sulfates which are measured as PM on the

filter. As a result, higher sulfur content fuel will generate more sulfates and will require

higher temperatures for filter generation. However, Engelhard has indicated that the

DPX filter with the MEX—003 catalyst formulation has been designed specifically for use

with diesel fuel containing 50 ppm or less sulfur. To support that within the 50 ppm fuel

sulfur content, there would be no adverse emission impact, Engethard provided the

following test data:


                                  3 ppm       FTP**         0.30/0.11    1.510.2        3.7/3.7      0.094/0.004

1999   |Cummins        ISB*      15 ppm       FTP**          0. 12        A10.3          AB.T          10.002
                                 20 ppm        FTP"*         410.10       40.3           ~3.7          a10.005
1992   Cummins      B—Series~    50ppm       MLTB~~         3.06/0.49    3.0/0.4       10.719.9      0.557/0.048

   Note:   *        5.9 liter, 250 horsepower
           **     > Emissions in grams per brake—horsepower—hour
           A       Baseline emissions were not available.
           ~       5.9 liter, 145 horsepower
           ~~      Emissions in grams per kilometer;
                   The emissions were measured over the Millbrook London Transport Bus Cycle and are
                   averages of two test runs. Two different vehicles were tested for baseline and modified
                   emissions.



   Testing on the Cummins ISB engine showed that with the increase in fuel sulfur content

   from 3 ppm to 15 and 20 ppm, there was little change in the modified THC, CO, NOx,

   and PM emissions. The changes in PM emissions may be attributed to test—to—test

   variability. Testing on the 1992 model—year Cummins B—series engine showed that even

   with the 50 ppm sulfur content fuel, there was no adverse impact on THC, CO, NOx, or

   PM emissions. The supporting data indicate that use of the DPX filter on engines

   operated using diesel fuel with a maximum sulfur content of 50 ppm does not cause any

   negative effect on exhaust emissions. The same emission impact is expected when the

   DPX filter is installed on all of the engines included in the exemption.

           Regeneration
           Once the PM is captured in the filter element, there must be catalyst "light—off"

   to burn off or oxidize the PM, regenerating the filter. The condition for catalyst "light—off"

   or filter regeneration varies with vehicle operating conditions (engine speed and load)

   and engine exhaust temperatures. Engelhard has indicated that to get sufficient


  regeneration of the DPX filter (MEX—003 formulation for use with diesel fue! containing

  50 ppm or less sulfur), the average temperature of the exhaust gas entering the filter

  must be at least 250 degrees Ceisius (° C). The average exhaust temperature required

  for regeneration may be lower for an engine and vehicle application with a higher peak

  operating temperature. For an application where the average exhaust temperature is

      below this threshold for a prolonged period of time, there may not be enough PM

  oxidation, and the filter may become plugged. This will lead to excessively high

      backpressure and may cause damage to the turbocharger and/or the engine. Such

      unfavorable temperature conditions may be encountered in a large engine operating

      under low load and/or in an engine operated under a duty cycle that results in low

      exhaust temperatures.

                 To demonstrate that the temperature condition for sufficient regeneration would

      be met for the engines for which the exemption is requested, Engelhard measured the

      exhaust gas temperatures of two engines during on—road vehicle operations that

      represent typical heavy—duty vehicle duty cycles. Engelhard provided the following

      results:




1998      DDC         Series 60    12.7        430      Delivery Truck*       150            400             56

 **       DDC         Series 50     8.5     250—350"      City Bus"*          200            425             73

      Note:      *       All of the engines were tested with DPX filter, formulation MEX—003.
                 *       The temperatures are stabilized operating temperatures. They were extracted from real—
                         time temperature versus time graphs and are only estimates.
                         Temperatures were measured over a six—hour drive period.
                 kx
                         Model—year information was not available.
                         Horsepowerinformation was not available and is estimated based on certification
                         information.
                 AA      Temperatures were measured over a five—hour drive period.


The temperature data showed that for the two vehicles, the operating exhaust

temperatures were above the 250° C threshold for over 50 percent of the duty cycles.

With respect to exhaust temperatures, the city bus represents one of the worst case

conditions due to its frequent stop—and—go duty cycie, and under such a condition,

Engelhard showed that the exhaust temperature criterion for regeneration is met.

        To furtherillustrate that the DPX filter would operate property on—road,

Engelfmard cited test programs in which numerous units are currently or have been

operating without failure. Engelhard provided the following information to address the

long—term operability of the DPX filter formulated for use with diesel fuel containing 50

ppm or less sulfur:



            ARCO Tanker Trucs                      5    5 months

            LA Sanitation Trucks                   5     1 year             *

                   Paris/Renault       .          700       *             94,000

            Ralphs Grocery Trucks                  5    3 months            *

        San Diego School Buses                     5    8 months          20,000

     Sweden/UK Buses and Trucks                    *    1—2 years           *

    Note:      *       Data were not available.



        The displacement and horsepower rating of the engines for which the

exemption is requested range from 5.9 to 14.0 liters and 195 to 575 horsepower,

respectively. The staff concludes that the test engines above are representative of the

engines included in the exemption application and that similar emission and

temperature results will be achieved for the remaining engines and vehicle applications.

Based on the findings above, the staff concludes that Engelhard‘s DPX Catalyzed Soot


Filter will not have any adverse impact on the exhaust emissions of the engines

included in the exemption.




                                           10



Document Created: 2005-09-01 12:43:02
Document Modified: 2005-09-01 12:43:02

Previous E.O. D-384-4 | Previous E.O. D-383 | Next E.O. D-384-6 | Next E.O. D-385