Настройки

Укажите год
-

Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

Подробнее
-

Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 17. Отображено 17.
14-06-2012 дата публикации

EXHAUST SYSTEM HAVING DOC REGENERATION STRATEGY

Номер: US20120144802A1
Автор: Arrowsmith Duncan J., DRISCOLL James J.
Принадлежит:

An exhaust system for use with a combustion engine is disclosed. The exhaust system may have an exhaust passage configured to receive a flow of exhaust from the combustion engine, and an oxidation catalyst disposed within the exhaust passage. The exhaust system may also have a fuel injector configured to selectively inject fuel into the exhaust at a location upstream of the oxidation catalyst, a temperature sensor configured to generate a signal indicative of a temperature of exhaust flowing through the exhaust passage, and a controller in communication with the fuel injector and the temperature sensor. The controller may be configured to make a determination based on the signal that an oxide layer has formed on the oxidation catalyst, and to regulate operation of the fuel injector to inject fuel and reduce the oxide layer based on the determination. 1. An exhaust system for a combustion engine , comprising:an exhaust passage configured to receive a flow of exhaust from the combustion engine;an oxidation catalyst disposed within the exhaust passage;a fuel injector configured to selectively inject fuel into the exhaust at a location upstream of the oxidation catalyst;a temperature sensor configured to generate a signal indicative of a temperature of exhaust flowing through the exhaust passage; and make a determination based on the signal that an oxide layer has formed on the oxidation catalyst; and', 'regulate operation of the fuel injector to inject fuel and reduce the oxide layer based on the determination., 'a controller in communication with the fuel injector and the temperature sensor, the controller being configured to2. The exhaust system of claim 1 , wherein the controller is configured to make the determination that an oxide layer has formed when the signal indicates a temperature of exhaust flowing through the exhaust passage has exceeded a threshold temperature.3. The exhaust system of claim 2 , wherein the controller is configured to make the ...

Подробнее
Номер записи: 1
22-01-2015 дата публикации

REDUCTANT SUPPLY SYSTEM

Номер: US20150023843A1
Автор: Cole Brian M., DRISCOLL James J., Sun Jinhui
Принадлежит: CATERPILLAR INC.

An aftertreatment system is disclosed. The aftertreatment system includes an exhaust conduit and a selective catalytic reduction module. The aftertreatment system also includes a reductant supply system. The reductant supply system includes a reductant tank, a reductant injector, and a pump assembly. The pump assembly includes a reversing valve assembly and a pump unit. The pump assembly also includes a plurality of check valves, a pressure sensor, and a filter. Further, the reductant supply system includes a back flow valve assembly. The reductant supply system also includes at least two header units associated with the pump assembly. The at least two header units include a reductant draw conduit and at least one heat exchanger. The at least two header units also include a bag filtration assembly. 1an exhaust conduit;a selective catalytic reduction module configured to receive an exhaust gas flow from the exhaust conduit; and a reductant tank;', 'a reductant injector;', a reversing valve assembly;', 'a pump unit;', 'a plurality of check valves associated with the pump unit;', 'a pressure sensor; and', 'a filter;, 'a pump assembly in fluid communication with the reductant tank and the reductant injector, the pump assembly comprising, 'a back flow valve assembly in fluid communication with the pump assembly and the reductant tank;', a reductant draw conduit configured to supply the reductant from the reductant tank to the pump assembly; and', 'at least one heat exchanger; and, 'at least two header units associated with the pump assembly, each of the at least two header units comprising, 'a bag filtration assembly provided on each of the at least two header units., 'a reductant supply system configured to supply a reductant into the exhaust conduit upstream of the selective catalytic reduction module, the reductant supply system comprising. An aftertreatment system comprising: The present disclosure relates to an aftertreatment system, and more particularly to a ...

Подробнее
Номер записи: 2
21-03-2019 дата публикации

AFTERTREATMENT SYSTEM

Номер: US20190085746A1
Автор: Anderson Colleen J, DRISCOLL James J., Gireesh Guruprasad, Malo Guillermo A. H., Park Paul W., Rodman Anthony, Smith Cory A.
Принадлежит: CATERPILLAR INC.

An aftertreatment system for treating a high-volume exhaust flow is provided. The aftertreatment system includes a filter module. The aftertreatment system also includes a conduit in fluid communication with the filter module. The aftertreatment system further includes at least one aftertreatment module in fluid communication with the conduit. The filter module is adapted to selectively receive at least one filter element therein. The at least one filter element is adapted to reduce a backpressure within the aftertreatment system. The filter module is also adapted to provide incremental levels of particulate matter reduction from the exhaust flow based, at least in part, on a number of filter elements therein. 1. An aftertreatment system for treating a high-volume exhaust flow , the aftertreatment system comprising:a filter module;a conduit in fluid communication with the filter module; andat least one aftertreatment module in fluid communication with the conduit, wherein the filter module is adapted to selectively receive at least one filter element therein, wherein the at least one filter element is adapted to reduce a backpressure within the aftertreatment system, and wherein the filter module is adapted to provide incremental levels of particulate matter reduction from the exhaust flow based, at least in part, on a number of filter elements therein.2. The aftertreatment system of claim 1 , wherein the at least one filter element is a partial flow filter.3. The aftertreatment system of claim 1 , wherein the at least one filter element is any one of a partially catalyzed claim 1 , a fully catalyzed claim 1 , and a zone catalyzed.4. The aftertreatment system of claim 1 , wherein the filter module is further adapted to include a free flow segment in fluid communication with the at least one filter element.5. The aftertreatment system of claim 1 , wherein the at least one filter element is plugged on an upstream end thereof.6. The aftertreatment system of claim 1 , ...

Подробнее
Номер записи: 3
25-08-2016 дата публикации

REDUCTANT INJECTOR MOUNT

Номер: US20160245142A1
Автор: Akers David A., DRISCOLL James J., Venkataraghavan Jayaraman
Принадлежит: CATERPILLAR INC.

A reductant injector mount is provided. The reductant injector mount includes a mounting region configured to connect to an exhaust conduit. The reductant injector also includes a contoured region formed in the mounting region. The contoured region is configured to increase a velocity of an exhaust gas flow through the contoured region. The contoured region is also configured to reduce a recirculation of the exhaust gas flow through the contoured region. Further, the reductant injector mount includes a cut out portion provided on the contoured region. The cut out portion is configured to receive a reductant injector tip therethrough. 1. A reductant injector mount comprising:a mounting region configured to connect to an exhaust conduit; increase a velocity of an exhaust gas flow through the contoured region; and', 'reduce a recirculation of the exhaust gas flow through the contoured region; and, 'a contoured region formed in the mounting region, the contoured region configured toa cut out portion provided on the contoured region, the cut out portion configured to receive a reductant injector tip therethrough.2. The reductant injector mount of claim 1 , wherein the contoured region includes a first lobe and a second lobe provided on either side of the cut out portion claim 1 , wherein the first lobe is positioned at a location upstream of the cut out portion and the second lobe is positioned downstream of the cut out portion claim 1 , with respect to an exhaust gas flow direction.3. The reductant injector mount of claim 2 , wherein the cut out portion is positioned in a throat portion of the contoured region claim 2 , the throat portion connecting the first and second lobes of the contoured region.4. The reductant injector mount of claim 2 , wherein a ratio of a width of the first lobe with respect to a diameter of the cut out portion is from 0.75 to 5 claim 2 , wherein the width of the first lobe is measured along an axis of the reductant injector mount perpendicular ...

Подробнее
Номер записи: 4
29-12-2016 дата публикации

HEADER UNIT FOR REDUCTANT TANK

Номер: US20160376968A1
Автор: Cassidy Theron, Cole Brian M., DEA Kevin L., DRISCOLL James J., Fahrenkrug Matthew F., Herold Shawn R., Long Douglas A., Tan Dongming
Принадлежит: CATERPILLAR INC.

A header unit for a reductant tank is provided. The header unit includes a reductant draw conduit extending into an interior space of the reductant tank. The reductant draw conduit is configured to draw a reductant from the reductant tank. The reductant draw conduit includes at least one expansion opening provided along a length thereof. The header unit also includes a valve element coupled to the reductant draw conduit. The valve element includes a main body member defining a channel therethrough. The main body member circumferentially surrounds at least a portion of the reductant draw conduit corresponding to the at least one expansion opening. The main body member is made of an elastomeric material configured to accommodate an expansion thereof. 1. A header unit for a reductant tank , the header unit comprising:a reductant draw conduit extending into an interior space of the reductant tank, the reductant draw conduit configured to draw a reductant from the reductant tank, wherein the reductant draw conduit includes at least one expansion opening provided along a length thereof; and a main body member defining a channel therethrough, the main body member circumferentially surrounding at least a portion of the reductant draw conduit corresponding to the at least one expansion opening,', 'wherein the main body member is made of an elastomeric material configured to accommodate an expansion thereof., 'a valve element coupled to the reductant draw conduit, the valve element comprising2. The header unit of claim 1 , wherein the reductant draw conduit includes a plurality of expansion openings provided along the length thereof.3. The header unit of claim 1 , wherein the elastomeric material of the valve element is configured to exert a radially inward restoring force on an outer wall of the reductant draw conduit with respect to a central axis of the valve element.4. The header unit of claim 1 , wherein the valve element is configured to exert a radially inward force on ...

Подробнее
Номер записи: 5
28-08-2008 дата публикации

Exhaust treatment system

Номер: WO2008103230A1
Автор: Cho Y. Liang, James J. Driscoll, Michael L. Woods, Wade J. Robel
Принадлежит: CATERPILLAR INC.

An exhaust gas treatment system (10, 100, 200, 300) of an internal combustion engine (12) includes a selective catalytic reduction catalyst (19) fluidly connected to the internal combustion engine (12), a particulate filter (16, 36) fluidly connected downstream of the selective catalytic reduction catalyst (19), and an induction line (24) configured to direct a portion of a filtered exhaust flow of the internal combustion engine (12) toward an inlet (21) of the engine (12).

Подробнее
Номер записи: 6
09-10-2012 дата публикации

Exhaust system having thermophoretic particulate agglomerator

Номер: US8281579B2
Автор: James J. Driscoll, Praveen S. Chavannavar, Wade J. Robel
Принадлежит: Caterpillar Inc

An exhaust system for use with a combustion engine is disclosed. The exhaust system may have a passage connected to receive exhaust from the combustion engine, and a cooling device located external to the passage to create a thermal gradient across a flow area of the passage that causes particulates within the exhaust to agglomerate on a wall of the passage. The exhaust system may also have a filtration device located to separate agglomerated particulates from the exhaust.

Подробнее
Номер записи: 7
05-11-2009 дата публикации

Exhaust system implementing scr and egr

Номер: WO2009099528A3
Автор: James J. Driscoll, Wade J. Robel
Принадлежит: CATERPILLAR INC.

An exhaust system (18) for use with an engine (10) is disclosed. The exhaust system may have an exhaust passageway (26), a reduction catalyst (38) located within the exhaust passageway, and a particulate filter (34) located within the exhaust passageway upstream of the reduction catalyst. The exhaust system may also have an oxidation catalyst (44) located within the exhaust passageway upstream of the reduction catalyst to provide a desired ratio of NO:NO2 to the reduction catalyst, and an exhaust gas recirculation loop (22). The exhaust gas recirculation loop may be situated to receive exhaust from the exhaust passageway at a location upstream of the oxidation catalyst and downstream of the particulate filter.

Подробнее
Номер записи: 8
11-12-2008 дата публикации

Selective homogeneous compression ignition system

Номер: DE112007000248T5
Автор: James J. Dunlap Driscoll, Wade J. Peoria Robel, William L. Dunlap Easley jun.
Принадлежит: Caterpillar Inc

Verfahren zum Betrieb eines Verbrennungsmotors 12, welches Folgendes aufweist: selektives Betreiben des Motors im ersten Betriebszustand, wobei Brennstoff in komprimiertes Strömungsmittel eingespritzt wird, um eine im Wesentlichen homogene Mischung aus Brennstoff und komprimiertem Strömungsmittel zu erzeugen, und wobei der Brennstoff durch die Wärme des komprimierten Strömungsmittels gezündet wird; selektives Betreiben des Motors in einem zweiten Betriebszustand, in dem Brennstoff in ein Gas eingespritzt wird, um eine im Wesentlichen homogene Mischung aus Gas und Brennstoff zu erzeugen, wobei die im Wesentlichen homogene Mischung komprimiert wird und der Brennstoff durch die Wärme des komprimierten Gases gezündet wird; und Bestimmen, ob der Motor im ersten oder zweiten Betriebszustand zu betreiben ist, und zwar gemäß Motorbedingungen. A method of operating an internal combustion engine 12, comprising: selectively operating the engine in the first mode of operation, wherein fuel is injected into compressed fluid to produce a substantially homogeneous mixture of fuel and compressed fluid, and wherein the fuel is ignited by the heat of the compressed fluid; selectively operating the engine in a second mode of operation, wherein fuel is injected into a gas to produce a substantially homogeneous mixture of gas and fuel, wherein the substantially homogeneous mixture is compressed and the fuel is ignited by the heat of the compressed gas ; and Determining whether to operate the engine in the first or second operating condition according to engine conditions.

Подробнее
Номер записи: 9
02-02-2016 дата публикации

System implementing low-reductant engine operation mode

Номер: US9249752B2
Автор: George E. Donaldson, James J. Driscoll
Принадлежит: Caterpillar Inc

A control system for a power unit having a supply of fuel and a supply of reductant is disclosed. The control system may have a first sensor associated with the supply of fuel to generate a signal indicative of a quantity of fuel remaining. The control system may also have a second sensor associated with the supply of reductant to generate a signal indicative of a quantity of the reductant remaining. The control system may further have a controller in communication with the first and second sensors. The controller may be configured to affect operation of the power unit such that the remaining fuel is consumed before consumption of the remaining reductant.

Подробнее
Номер записи: 10
19-07-2012 дата публикации

NOx-Verminderungssystem mit einem Separator

Номер: DE112009003760T5
Автор: James J. Driscoll, Jonathan P. Jackson, LIU Yafeng, Michael S. Bond
Принадлежит: Caterpillar Inc

Es ist ein NOx-Verminderungssystem mit einem Separator zur Verwendung mit einem Verbrennungsmotorabgas offenbart. Das System umfasst einen Verbrennungsmotor mit einem Abgaskrümmer. Ein Separator ist stromabwärts von dem Motorabgaskrümmer in einem Abgassystem angeordnet. Der Separator ist so aufgebaut, dass er Dampf von dem Abgas in dem Abgassystem extrahiert und ein Element ist so aufgebaut, dass es den extrahierten Dampf aufnimmt und ein NOx-verminderndes Mittel erzeugt, das zur Verminderung der Menge von NOx in dem Abgas verwendet wird, bevor es in die Luft freigesetzt wird.

Подробнее
Номер записи: 11
14-01-2009 дата публикации

Exhaust treatment system

Номер: EP2013453A1
Автор: Aaron D. Strauser, James J. Driscoll, Jr. William L. Easley, Maarten Verkiel, Wade J. Robel
Принадлежит: Caterpillar Inc

An exhaust treatment system (20) is provided. The system may include a particulate trap (34) configured to remove one or more types of particulate matter from an exhaust flow of an engine (18). The system may also include a catalyst (32) configured to chemically alter at least one component of the exhaust flow. Further, the system may include an exhaust conduit (26) configured to direct the exhaust flow from the engine to the particulate trap and the catalyst. In addition, the exhaust treatment system may include a heating system (38) configured to maintain the temperature of the catalyst above a first predetermined temperature. The heating system may also be configured to periodically raise the temperature of the particulate trap above a higher, second predetermined temperature to thereby effectuate a regeneration of the particulate trap by oxidizing particulate matter accumulated in the particulate trap.

Подробнее
Номер записи: 12
06-07-2006 дата публикации

排気ガス濃度を監視するためのシステム

Номер: JP2006177366A
Автор: Bryan A Silletti, J Driscoll James, M Faas Julie, Maarten Verkiel, エー．シレッティ ブライアン, エム．ファース ジュリー, ジェイ．ドリスコル ジェイムス, バーキール マールテン
Принадлежит: Caterpillar Inc

【課題】排気ガス濃度を監視するためのシステムを提供する。 【解決手段】エンジンからの排気流中の排気ガス濃度を監視するためのシステムが提供される。システムは、エンジンによって生成された排気流を運ぶように構成された排気系を含み得る。システムは、排気に連通する少なくとも１つのセンサであって、排気流中のＮＯｘの濃度と少なくとも１つの硫黄含有化合物の濃度とを示す出力を生成するように構成された少なくとも１つのセンサをさらに含み得る。システムは、排気流におけるリッチ条件及びリーン条件のうちの１つを選択的に生成し、リッチ条件中に、少なくとも１つのセンサからの出力に基づいて、排気流中の少なくとも１つの硫黄含有化合物の濃度を決定し、リーン条件中に、少なくとも１つのセンサからの出力に基づいて、排気流中のＮＯｘの濃度を決定するように構成された制御装置をさらに含み得る。 【選択図】図２

Подробнее
Номер записи: 13
08-11-2007 дата публикации

Exhaust treatment system

Номер: WO2007126592A1
Автор: Aaron D. Strauser, James J. Driscoll, Jr. William L. Easley, Maarten Verkiel, Wade J. Robel
Принадлежит: CATERPILLAR INC.

An exhaust treatment system (20) is provided. The system may include a particulate trap (34) configured to remove one or more types of particulate matter from an exhaust flow of an engine (18). The system may also include a catalyst (32) configured to chemically alter at least one component of the exhaust flow. Further, the system may include an exhaust conduit (26) configured to direct the exhaust flow from the engine to the particulate trap and the catalyst. In addition, the exhaust treatment system may include a heating system (38) configured to maintain the temperature of the catalyst above a first predetermined temperature. The heating system may also be configured to periodically raise the temperature of the particulate trap above a higher, second predetermined temperature to thereby effectuate a regeneration of the particulate trap by oxidizing particulate matter accumulated in the particulate trap.

Подробнее
Номер записи: 14
24-05-2006 дата публикации

Abgasreinigung mit an Bord befindlicher Ammoniakproduktion

Номер: DE102005037030A1
Автор: Gerald N. Dunlap Coleman, James J. Dunlap Driscoll, Kevin J. Peoria Knox, Wade J. Peoria Robel
Принадлежит: Caterpillar Inc

Es wird eine Leistungsquelle (12) zur Verwendung mit selektiven katalytischen Reduktionssystemen für die Abgasreinigung vorgesehen. Die Leistungsquelle umfasst eine erste Zylindergruppe (14) mit einem ersten Lufteinlassdurchlass (18) und einem ersten Abgasdurchlass (20) und ferner mit einer zweiten Zylindergruppe (16) mit einem zweiten Lufteinlassdurchlass (22) und einem zweiten Abgasdurchlass (24). Der zweite Lufteinlassdurchlass ist strömungsmittelmäßig vom ersten Lufteinlassdurchlass isoliert. Eine Kraftstoffliefervorrichtung (28) kann derart konfiguriert sein, dass sie Kraftstoff in den ersten Abgasdurchlass liefert und ein Katalysator (26) kann stromabwärts gegenüber der Kraftstoffliefervorrichtung angeordnet sein, um mindestens einen Teil des Abgasstromes in dem ersten Abgasdurchlass in Ammoniak umzuwandeln.

Подробнее
Номер записи: 15
25-05-2006 дата публикации

車上におけるアンモニア生成を伴う排気清浄化

Номер: JP2006132528A
Автор: Gerald N Coleman, James J Driscoll, Kevin J Knox, Wade J Robel, エヌ．コールマン ジェラルド, ジェイ．ドリスコル ジェームス, ジェイ．ノックス ケビン, ジェイ．ローベル ウェイド
Принадлежит: Caterpillar Inc

【課題】 車上におけるアンモニア生成を伴う排気清浄化を提供する。 【解決手段】 排気ガス清浄化用の選択的触媒還元システムに使用するための動力源が提供される。動力源は、第１の吸気通路と第１の排気通路とを有する第１のシリンダ群と、第２の吸気通路と第２の排気通路とを有する第２のシリンダ群とを含む。第２の吸気通路は第１の吸気通路から流体的に隔離される。燃料供給装置は、燃料を第１の排気通路内に供給するように構成可能であり、また触媒を燃料供給装置の下流に配置して、第１の排気通路内の排気ストリームの少なくとも一部分をアンモニアに変換することが可能である。 【選択図】 図１

Подробнее
Номер записи: 16
23-09-2010 дата публикации

Nox reduction system having a separator

Номер: WO2010075205A3
Автор: James J. Driscoll, Jonathan P. Jackson, LIU Yafeng, Michael S. Bond
Принадлежит: CATERPILLAR INC.

A NOx reduction system having a separator is disclosed for use with combustion engine exhaust. The system includes a combustion engine having an exhaust manifold. A separator is positioned downstream of the engine exhaust manifold in an exhaust system. The separator is configured to extract steam from the exhaust in the exhaust system and an element is configured to receive the extracted steam and produce a NOx reducing agent that is used to reduce the amount of NOx in the exhaust before release into the atmosphere.

Подробнее
Номер записи: 17