Product InformationBenefitsVehicle and engine manufacturers worldwide are striving to improve the fuel efficiency and performance of diesel engines while meeting NOx, soot particle mass, and soot particle number emissions limits under real-world driving conditions. Integrating SCR catalysts on diesel particulate filters is a leading approach to meet emerging challenges with a compact, fuel-efficient, high-performance solution.

Corning® DuraTrap® AT HP filters are designed with a higher porosity and optimized microstructure. This enables low backpressure at high washcoat loads and excellent filtration efficiency under all driving conditions.

Corning® DuraTrap® AT HP Filters/ Product Information Sheet / April 2014

Exhaust in

Cleaner air out

Diesel exhaust flowCell detail

Low Backpressure

Norm

. Pre

ssur

e Dro

p in

kPa a

t 200

˚C

00 1 2 3 4 5 6 7

5

10

15

20

25 SiC (coated)Corning DuraTrap AT HP (coated)

~30% lower

Soot Load (g/l)

Corning’s high-porosity filters showed significant pressure drop benefits over commercially available silicon carbide products with similar coatings and coating levels.

Excellent Filtration Efficiency1.E+12

1.E+11

1.E+10

1.E+09

1.E+08

PN, #

/km

Euro 6 Limit

1.22E+09

(coated)DuraTrap AT LP

1.94E+09

(coated)DuraTrap AT HP

1.28E+11

(coated)SiC

Particle number filtration efficiency for Corning DuraTrap AT HP filters is in line with current generation DuraTrap AT LP filters.

Corning® DuraTrap® AT HP Filters

DuraTrap AT LP(existing low porosity

product line)

DuraTrap AT HP(new high porosity

product line)

Porosity ~45% ~60%

Washcoat load at equivalent ýp

Base >5x

Filtration efficiency Base =

Corning® DuraTrap® AT HP Filters

Global Supply: DuraTrap AT HP Filters

Corning, NYKaiserslautern, Germany

Port Elizabeth,South Africa

Shanghai,China

Standard Cell Geometry and Sizes• 350 cells per square inch/ 12 mil wall thickness• 300 cells per square inch/ 13 mil wall thickness• Wide range of sizes available

Innovative DesignFilter shape can be optimized for systems with space constraints and diverse configurations.

Corning’s innovative asymmetric cell technology (ACT) option can help manage lifetime pressure drop requirements and provides ash storage benefits through larger inlet channels.

Asymmetric Cell TechnologyLarger inlet, smaller outletUnplugged to highlight ACT design. Filters will have alternating plugs.

Monolithic AdvantageCorning’s aluminum titanate material provides low thermal expansion to enable durable monolithic construction. Our monolithic design allows:

• Low pressure drop and excellent regeneration efficiency to help improve fuel consumption• Increased ash storage capacity and about 12% larger filtration surface area compared to segmented filters• More effective utilization of washcoat

Contact us today to learn more. Environmental@corning.comwww.corning.com/EnvironmentalTechnologies

The charts and graphs used in this publication are based on data from experimental and limited tests conducted under controlled laboratory conditions, measurements, and calculations sponsored by Corning. Corning can provide additional calculations or test results based on specific operating conditions.

Corning and DuraTrap are registered trademarks of Corning Incorporated.

© 2014 Corning Incorporated. All Rights Reserved.

Supporting automotive manufacturers worldwide

Corning® DuraTrap® AT HP Filters/ Product Information Sheet / April 2014