Method for reducing pressure drop through filters, and filter exhibiting reduced pressure drop

Sappok, Alexander; Wong, Victor

Advanced Search OptionsAdvanced Search queries use a traditional Term Search. For more info, see our FAQ.

All Fields:

Patent Title:

Abstract:

Assignee:

Inventor(s):

Patent Number:

Patent Classification (CPC):

All Classifications
A - human necessities
A01 - agriculture
A21 - baking
A22 - butchering
A23 - foods or foodstuffs
A24 - tobacco
A41 - wearing apparel
A42 - headwear
A43 - footwear
A44 - haberdashery
A45 - hand or travelling articles
A46 - brushware
A47 - furniture
A61 - medical or veterinary science
A62 - life-saving
A63 - sports
A99 - subject matter not otherwise provided for in this section
B - performing operations
B01 - physical or chemical processes or apparatus in general
B02 - crushing, pulverising, or disintegrating
B03 - separation of solid materials using liquids or using pneumatic tables or jigs
B04 - centrifugal apparatus or machines for carrying-out physical or chemical processes
B05 - spraying or atomising in general
B06 - generating or transmitting mechanical vibrations in general
B07 - separating solids from solids
B08 - cleaning
B09 - disposal of solid waste
B21 - mechanical metal-working without essentially removing material
B22 - casting
B23 - machine tools
B24 - grinding
B25 - hand tools
B26 - hand cutting tools
B27 - working or preserving wood or similar material
B28 - working cement, clay, or stone
B29 - working of plastics
B30 - presses
B31 - making articles of paper, cardboard or material worked in a manner analogous to paper
B32 - layered products
B33 - additive manufacturing technology
B41 - printing
B42 - bookbinding
B43 - writing or drawing implements
B44 - decorative arts
B60 - vehicles in general
B61 - railways
B62 - land vehicles for travelling otherwise than on rails
B63 - ships or other waterborne vessels
B64 - aircraft
B65 - conveying
B66 - hoisting
B67 - opening, closing {or cleaning} bottles, jars or similar containers
B68 - saddlery
B81 - microstructural technology
B82 - nanotechnology
B99 - subject matter not otherwise provided for in this section
C - chemistry
C01 - inorganic chemistry
C02 - treatment of water, waste water, sewage, or sludge
C03 - glass
C04 - cements
C05 - fertilisers
C06 - explosives
C07 - organic chemistry
C08 - organic macromolecular compounds
C09 - dyes
C10 - petroleum, gas or coke industries
C11 - animal or vegetable oils, fats, fatty substances or waxes
C12 - biochemistry
C13 - sugar industry
C14 - skins
C21 - metallurgy of iron
C22 - metallurgy
C23 - coating metallic material
C25 - electrolytic or electrophoretic processes
C30 - crystal growth
C40 - combinatorial technology
C99 - subject matter not otherwise provided for in this section
D - textiles
D01 - natural or man-made threads or fibres
D02 - yarns
D03 - weaving
D04 - braiding
D05 - sewing
D06 - treatment of textiles or the like
D07 - ropes
D10 - indexing scheme associated with sublasses of section d, relating to textiles
D21 - paper-making
D99 - subject matter not otherwise provided for in this section
E - fixed constructions
E01 - construction of roads, railways, or bridges
E02 - hydraulic engineering
E03 - water supply
E04 - building
E05 - locks
E06 - doors, windows, shutters, or roller blinds in general
E21 - earth drilling
E99 - subject matter not otherwise provided for in this section
F - mechanical engineering
F01 - machines or engines in general
F02 - combustion engines
F03 - machines or engines for liquids
F04 - positive - displacement machines for liquids
F05 - indexing schemes relating to engines or pumps in various subclasses of classes f01-f04
F15 - fluid-pressure actuators
F16 - engineering elements and units
F17 - storing or distributing gases or liquids
F21 - lighting
F22 - steam generation
F23 - combustion apparatus
F24 - heating
F25 - refrigeration or cooling
F26 - drying
F27 - furnaces
F28 - heat exchange in general
F41 - weapons
F42 - ammunition
F99 - subject matter not otherwise provided for in this section
G - physics
G01 - measuring
G02 - optics
G03 - photography
G04 - horology
G05 - controlling
G06 - computing
G07 - checking-devices
G08 - signalling
G09 - education
G10 - musical instruments
G11 - information storage
G12 - instrument details
G16 - information and communication technology [ict] specially adapted for specific application fields
G21 - nuclear physics
G99 - subject matter not otherwise provided for in this section
H - electricity
H01 - basic electric elements
H02 - generation
H03 - basic electronic circuitry
H04 - electric communication technique
H05 - electric techniques not otherwise provided for
H99 - subject matter not otherwise provided for in this section
Y - new / cross sectional technologies
Y02 - technologies or applications for mitigation or adaptation against climate change
Y04 - information or communication technologies having an impact on other technology areas
Y10 - technical subjects covered by former uspc

More Options ...

Title: Method for reducing pressure drop through filters, and filter exhibiting reduced pressure drop

Abstract

Methods for generating and applying coatings to filters with porous material in order to reduce large pressure drop increases as material accumulates in a filter, as well as the filter exhibiting reduced and/or more uniform pressure drop. The filter can be a diesel particulate trap for removing particulate matter such as soot from the exhaust of a diesel engine. Porous material such as ash is loaded on the surface of the substrate or filter walls, such as by coating, depositing, distributing or layering the porous material along the channel walls of the filter in an amount effective for minimizing or preventing depth filtration during use of the filter. Efficient filtration at acceptable flow rates is achieved.

Inventors:: Sappok, Alexander; Wong, Victor

Issue Date:: Tue Nov 18 00:00:00 EST 2014

Research Org.:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1164034

Patent Number(s):: 8889221

Application Number:: 13/915,014

Assignee:: Massachusetts Institute of Technology (Cambridge, MA)

Patent Classifications (CPCs):: B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION

F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01N - GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL

Show more

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
B01D2239/0471 - Surface coating material
B01D2258/012 - Diesel engines and lean burn gasoline engines
B01D2273/12 - Influencing the filter cake during filtration using filter aids
B01D39/2093 - {Ceramic foam}
B01D46/2418 - {Honeycomb filters
B01D46/2455 - {of the whole honeycomb or segments, e.g. elliptic body, octagonal segment, centre of gravity}

F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01N - GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL
F01N2610/00 - Adding substances to exhaust gases
F01N2610/03 - the substance being hydrocarbons, e.g. engine fuel
F01N2610/12 - the substance being in solid form, e.g. pellets or powder
F01N2900/1606 - Particle filter loading or soot amount
F01N3/022 - characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
F01N3/023 - using means for regenerating the filters, e.g. by burning trapped particles
F01N3/029 - by adding non-fuel substances to exhaust
F01N3/0293 - {injecting substances in exhaust stream}
F01N3/0296 - {having means for preheating additional substances}

Show less

DOE Contract Number:: AC0500OR22725

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 54 ENVIRONMENTAL SCIENCES; 36 MATERIALS SCIENCE

Citation Formats


                    Sappok, Alexander, and Wong, Victor. Method for reducing pressure drop through filters, and filter exhibiting reduced pressure drop.  United States: N. p., 2014. 
        Web.

Copy to clipboard


                    Sappok, Alexander, & Wong, Victor. Method for reducing pressure drop through filters, and filter exhibiting reduced pressure drop.  United States.

Copy to clipboard


                    Sappok, Alexander, and Wong, Victor. Tue .  
        "Method for reducing pressure drop through filters, and filter exhibiting reduced pressure drop".  United States.  https://www.osti.gov/servlets/purl/1164034.

Copy to clipboard


                    
@article{osti_1164034,

  title        = {Method for reducing pressure drop through filters, and filter exhibiting reduced pressure drop},

  author       = {Sappok, Alexander and Wong, Victor},

  abstractNote = {Methods for generating and applying coatings to filters with porous material in order to reduce large pressure drop increases as material accumulates in a filter, as well as the filter exhibiting reduced and/or more uniform pressure drop. The filter can be a diesel particulate trap for removing particulate matter such as soot from the exhaust of a diesel engine. Porous material such as ash is loaded on the surface of the substrate or filter walls, such as by coating, depositing, distributing or layering the porous material along the channel walls of the filter in an amount effective for minimizing or preventing depth filtration during use of the filter. Efficient filtration at acceptable flow rates is achieved.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {Tue Nov 18 00:00:00 EST 2014},

  month        = {Tue Nov 18 00:00:00 EST 2014}

}

Copy to clipboard

Patent:

Save / Share:

Export Metadata

Save to My Library

Works referenced in this record:

Diesel particulate trap
patent, May 1982

Pitcher, Jr., Wayne H.
US Patent Document 4,329,162
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4329162

Process for producing porous ceramic filter for filtering of particulates from diesel exhaust gases
patent, October 1989

Helferich, Richard L.; Schenck, Robert C.
US Patent Document 4,871,495
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4871495

Back-flushable filtration device and method of forming and using same
patent, May 1992

Goldsmith, Robert L.; Bishop, Bruce
US Patent Document 5,114,581
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5114581

Ceramic-made filter and process for production thereof
patent, January 2005

Noda, Naomi; Yamada, Kanji; Kasai, Yoshiyuki
US Patent Document 6,837,911
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6837911

Porous ceramic filter and method for producing same
patent-application, January 2002

Blum, Yigal D.; Johnson, Sylvia M.; Chen, Huiyong
US Patent Application 09/794332; 20020011439
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20020011439

Ceramic filter and filter device
patent-application, October 2002

Noda, Naomi; Yamada, Kanji
US Patent Application 09/959836; 20020157358
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20020157358

Catalytic soot filter and use thereof in treatment of lean exhaust gases
patent-application, April 2004

Schafer-Sindlinger, Adolf; Pfeifer, Marcus; Hackbarth, Ulrich
US Patent Application 10/381295; 20040065078
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20040065078

Low pressure drop coated diesel exhaust filter
patent-application, June 2007

Beall, Douglas Munroe; Heibel, Achim Karl-Erich; Tao, Tinghong
US Patent Application 11/638899; 20070140928
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20070140928

Microwave sensing for determination of loading of filters
patent-application, March 2008

Bromberg, Leslie; Sappok, Alex; Parker, Ronald
US Patent Application 11/741832; 20080059093
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20080059093

Porous Honeycomb Filter
patent-application, April 2008

Otsuka, Aiko; Ichikawa, Shuichi
US Patent Application 11/659977; 20080092499
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20080092499

Honeycomb Filter
patent-application, June 2010

Mitzuno, Yukio; Noda, Naomi; Yamada, Toshio
US Patent Application 12/603338; 20100135866
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20100135866