JP2006161572A - 排気浄化装置 - Google Patents
排気浄化装置 Download PDFInfo
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- JP2006161572A JP2006161572A JP2004350061A JP2004350061A JP2006161572A JP 2006161572 A JP2006161572 A JP 2006161572A JP 2004350061 A JP2004350061 A JP 2004350061A JP 2004350061 A JP2004350061 A JP 2004350061A JP 2006161572 A JP2006161572 A JP 2006161572A
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- Prior art keywords
- pipe
- upstream
- exhaust
- pressure
- particulate filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
- F01N11/002—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity the diagnostic devices measuring or estimating temperature or pressure in, or downstream of the exhaust apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
- F01N13/0097—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series the purifying devices are arranged in a single housing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N9/00—Electrical control of exhaust gas treating apparatus
- F01N9/002—Electrical control of exhaust gas treating apparatus of filter regeneration, e.g. detection of clogging
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
- F01N2560/08—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being a pressure sensor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Processes For Solid Components From Exhaust (AREA)
- Exhaust Gas After Treatment (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
【解決手段】排気ガス中の排気微粒子等を捕集するパティキュレートフィルタ(DPNR触媒)3と、パティキュレートフィルタ3の上流側3aと下流側3bとの差圧を検出する差圧センサ10を備えた排気浄化装置1において、差圧センサ10に圧力を導入する配管のうち、パティキュレートフィルタ3の上流側の圧力を差圧センサ10に導入する上流側配管5については、パティキュレートフィルタ5に近い側に、差圧センサ10側の部分に比べて内径が大きな拡管部50を設けることで、上流側配管5内部への排気微粒子、SOOT、SOFの堆積を抑制して上流側配管5の詰まりを防止する。
【選択図】図1
Description
SOOTは排気ガス中の未燃燃料であるHC(ハイドロカーボン)をバインダとしてデポジットとなる。さらに、排気の圧力は脈動しているため、上流側配管の圧力導入口から差圧センサ側に向けて排気ガスが繰り返して押し込まれるので、圧力導入口付近の曲り部が特に詰まりやすくなる。
まず、ディーゼルエンジンの概略構成を図1を参照しながら説明する。
ず)が配置される場合もある。
吸入空気に排気ガスの一部を導入することで気筒内の燃焼温度を低下させてNOxの発生量を低減させる装置であって、吸気管110と排気管120とを連通するEGR通路141、このEGR通路141に設けられたEGRクーラ142及びEGR弁143等によって構成されており、EGR弁143の開度を調整することにより、エキゾーストマニホールド106からインテークマニホールド105に導入されるEGR量(排気還流量)を調整することができる。
排気浄化装置1は、前段触媒2とDPNR触媒(パティキュレートフィルタ)3とを備えている。DPNR触媒3の上流側に配置された前段触媒2は、DPNR触媒3よりも容量が小さくて、エンジン始動時であっても排気ガスの熱により速やかに温度が上昇され活性状態となる。なお、前段触媒2は、酸化能力を有する触媒であればよく、例えば吸蔵還元型NOx触媒あるいは酸化触媒や三元触媒などが挙げられる。
ECU100は、図示はしないが、CPU、ROM、RAM及びバックアップRAMなどを備えている。ROMは、各種制御プログラムや、それら各種制御プログラムを実行する際に参照されるマップ等が記憶されている。CPUは、ROMに記憶された各種制御プログラムやマップに基づいて演算処理を実行する。また、RAMは、CPUでの演算結果
や各センサから入力されたデータ等を一時的に記憶するメモリであり、バックアップRAMは、エンジン101の停止時にその保存すべきデータ等を記憶する不揮発性のメモリである。そして、ECU100は、前記したエアフローメータ112、吸気温センサ、水温センサ、O2センサなどの各種センサの検出信号に基づいて、ディーゼルエンジン101
の各種制御を実行する。
次に、排気浄化装置1の上流側配管5及び下流側配管6について説明する。
a側の端部にフレア61aが加工されている。また、パイプ61の出口6b側の端部には管継手9への接続用のスプール61bが加工されている。
Va1>Vb1、Va2>Vb2)となる。従って、両者に同じ圧力ΔP(脈動)が作用した場合、全体の内径を拡大した上流側配管305の方がΔPによる圧縮量が大きくなるので、図3(A)に示すように、全体の内径を拡大した上流側配管305では排気ガスが距離Laまで侵入するのに対し、圧力導入口5a付近のみの内径を拡大した上流側配管5では、図3(B)に示すように、排気ガスは距離Lb(Lb<La)までしか侵入しなくなる。
2 前段触媒
3 DPNR触媒(パティキュレートフィルタ)
3a DPNR触媒の上流側
3b DPNR触媒の下流側
4 ケーシング
4a 圧力取出口(上流側)
4b 圧力取出口(下流側)
5 上流側配管
5a 圧力導入口
5b 出口
50 拡管部
51 フィルタ側パイプ
52 センサ側パイプ
6 下流側配管
6a 圧力導入口
6b 出口
7、8 フレア管継手
9 スリーブ状の管継手
10 差圧センサ
100 ECU
101 ディーゼルエンジン
102 エンジン本体
105 インテークマニホールド
106 エキゾーストマニホールド
110 吸気管
120 排気管(排気通路)
Claims (4)
- 排気通路に設けられ排気ガス中の排気微粒子を捕集するパティキュレートフィルタと、前記パティキュレートフィルタの上流側の圧力と下流側の圧力との差圧を検出する差圧検出手段とを備えた排気浄化装置において、
前記差圧検出手段に圧力を導入する配管のうち、前記パティキュレートフィルタの上流側の圧力を前記差圧検出手段に導入する上流側配管には、前記パティキュレートフィルタに近い側の一部に、前記差圧検出手段側の部分よりも内径が大きな拡管部が設けられていることを特徴とする排気浄化装置。 - 前記上流側配管の拡管部に曲り部が設けられていることを特徴とする請求項1記載の排気浄化装置。
- 前記上流側配管の前記パティキュレートフィルタ側の圧力導入口から前記差圧検出手段に向かう圧力導入経路において第1番目に位置する曲り部が前記拡管部に設けられていることを特徴とする請求項2記載の排気浄化装置。
- 前記曲り部の曲げ角度が90°以上であることを特徴とする請求項2または3記載の排気浄化装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004350061A JP4525319B2 (ja) | 2004-12-02 | 2004-12-02 | 排気浄化装置 |
PCT/IB2005/003635 WO2006059219A1 (en) | 2004-12-02 | 2005-12-01 | Exhaust gas control apparatus |
US10/594,953 US7487634B2 (en) | 2004-12-02 | 2005-12-01 | Exhaust gas control apparatus |
DE602005004530T DE602005004530T2 (de) | 2004-12-02 | 2005-12-01 | Abgassteuergerät |
EP05824038A EP1745199B1 (en) | 2004-12-02 | 2005-12-01 | Exhaust gas control apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004350061A JP4525319B2 (ja) | 2004-12-02 | 2004-12-02 | 排気浄化装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006161572A true JP2006161572A (ja) | 2006-06-22 |
JP4525319B2 JP4525319B2 (ja) | 2010-08-18 |
Family
ID=35759132
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004350061A Active JP4525319B2 (ja) | 2004-12-02 | 2004-12-02 | 排気浄化装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7487634B2 (ja) |
EP (1) | EP1745199B1 (ja) |
JP (1) | JP4525319B2 (ja) |
DE (1) | DE602005004530T2 (ja) |
WO (1) | WO2006059219A1 (ja) |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8136505B2 (en) | 2009-09-29 | 2012-03-20 | Ford Global Technologies, Llc | Method for controlling spark for particulate filter regenerating |
US8336300B2 (en) | 2009-09-29 | 2012-12-25 | Ford Global Technologies, Llc | System and method for regenerating a particulate filter accompanied by a catalyst |
US8341947B2 (en) | 2009-09-29 | 2013-01-01 | Ford Global Technologies, Llc | System and method for regenerating a particulate filter |
US8347613B2 (en) | 2009-09-29 | 2013-01-08 | Ford Global Technologies, Llc | Controlling operation of exhaust of an engine including a particulate filter |
US8359840B2 (en) | 2009-09-29 | 2013-01-29 | Ford Global Technologies, Llc | Method for adjusting boost pressure while regenerating a particulate filter for a direct injection engine |
US8359839B2 (en) | 2009-09-29 | 2013-01-29 | Ford Global Technologies, Llc | System and method for regenerating a particulate filter for a direct injection engine |
US8387370B2 (en) | 2009-09-29 | 2013-03-05 | Ford Global Technologies, Llc | System for regenerating a particulate filter and controlling EGR |
US8464514B2 (en) | 2009-09-29 | 2013-06-18 | Ford Global Technologies, Llc | Method for regenerating a particulate filter for a boosted direct injection engine |
US8516797B2 (en) | 2009-09-29 | 2013-08-27 | Ford Global Technologies, Llc | Control of exhaust flow in an engine including a particulate filter |
US8875494B2 (en) | 2009-09-29 | 2014-11-04 | Ford Global Technologies, Llc | Fuel control for spark ignited engine having a particulate filter system |
US9103247B2 (en) | 2010-10-13 | 2015-08-11 | Ford Global Technologies, Llc | Exhaust system and method for mitigating degradation of components of a turbocharged engine with exhaust gas recirculation |
US9151206B2 (en) | 2011-02-28 | 2015-10-06 | Ford Global Technologies, Llc | Method for determining soot mass stored with a particulate filter |
US9863348B2 (en) | 2009-09-29 | 2018-01-09 | Ford Global Technologies, Llc | Method for controlling fuel of a spark ignited engine while regenerating a particulate filter |
JP2018150928A (ja) * | 2017-03-10 | 2018-09-27 | マツダ株式会社 | エンジンの排気装置 |
KR20180122945A (ko) * | 2017-05-04 | 2018-11-14 | 폭스바겐 악티엔 게젤샤프트 | 내연기관용 배기 시스템, 그리고 상기 배기 시스템의 작동 방법 |
JP2020041440A (ja) * | 2018-09-07 | 2020-03-19 | トヨタ自動車株式会社 | 内燃機関の排気構造 |
Families Citing this family (8)
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JP4737098B2 (ja) * | 2007-01-24 | 2011-07-27 | 株式会社デンソー | 内燃機関の診断装置 |
US20080229821A1 (en) * | 2007-03-20 | 2008-09-25 | Reeder Kevin R | Sensor impact protection apparatus |
US8534055B2 (en) * | 2010-03-29 | 2013-09-17 | Thermo King Corporation | Filter arrangement for exhaust aftertreatment system |
GB2492787B (en) | 2011-07-12 | 2017-12-06 | Gm Global Tech Operations Llc | An exhaust pressure line for an internal combustion engine |
JP2014006138A (ja) * | 2012-06-25 | 2014-01-16 | Hitachi Automotive Systems Ltd | 圧力センサ装置 |
US9664095B2 (en) * | 2014-04-01 | 2017-05-30 | Ford Global Technologies, Llc | Method and system for leak detection at a particulate filter |
FR3024541B1 (fr) * | 2014-07-31 | 2016-08-19 | Renault Sa | Agencement d'un dispositif de mesure de pression sur une ligne d'echappement comportant un filtre a particules |
CN111075541B (zh) * | 2019-12-05 | 2021-06-22 | 湖南罗佑发动机部件有限公司 | 一种催化器 |
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- 2005-12-01 DE DE602005004530T patent/DE602005004530T2/de active Active
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Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8739518B2 (en) | 2009-09-29 | 2014-06-03 | Ford Global Technologies, Llc | Controlling operation of exhaust of an engine including a particulate filter |
US8359840B2 (en) | 2009-09-29 | 2013-01-29 | Ford Global Technologies, Llc | Method for adjusting boost pressure while regenerating a particulate filter for a direct injection engine |
US8136505B2 (en) | 2009-09-29 | 2012-03-20 | Ford Global Technologies, Llc | Method for controlling spark for particulate filter regenerating |
US9080482B2 (en) | 2009-09-29 | 2015-07-14 | Ford Global Technologies, Llc | Control of exhaust flow in an engine including a particulate filter |
US8875494B2 (en) | 2009-09-29 | 2014-11-04 | Ford Global Technologies, Llc | Fuel control for spark ignited engine having a particulate filter system |
US8359839B2 (en) | 2009-09-29 | 2013-01-29 | Ford Global Technologies, Llc | System and method for regenerating a particulate filter for a direct injection engine |
US8387370B2 (en) | 2009-09-29 | 2013-03-05 | Ford Global Technologies, Llc | System for regenerating a particulate filter and controlling EGR |
US8402943B2 (en) | 2009-09-29 | 2013-03-26 | Ford Global Technologies, Llc | Method for controlling spark for particulate filter regenerating |
US8464514B2 (en) | 2009-09-29 | 2013-06-18 | Ford Global Technologies, Llc | Method for regenerating a particulate filter for a boosted direct injection engine |
US8516797B2 (en) | 2009-09-29 | 2013-08-27 | Ford Global Technologies, Llc | Control of exhaust flow in an engine including a particulate filter |
US8341947B2 (en) | 2009-09-29 | 2013-01-01 | Ford Global Technologies, Llc | System and method for regenerating a particulate filter |
US8336300B2 (en) | 2009-09-29 | 2012-12-25 | Ford Global Technologies, Llc | System and method for regenerating a particulate filter accompanied by a catalyst |
US8347613B2 (en) | 2009-09-29 | 2013-01-08 | Ford Global Technologies, Llc | Controlling operation of exhaust of an engine including a particulate filter |
US9863348B2 (en) | 2009-09-29 | 2018-01-09 | Ford Global Technologies, Llc | Method for controlling fuel of a spark ignited engine while regenerating a particulate filter |
US9394844B2 (en) | 2009-09-29 | 2016-07-19 | Ford Global Technologies, Llc | Fuel control for spark ignited engine having a particulate filter system |
US9103247B2 (en) | 2010-10-13 | 2015-08-11 | Ford Global Technologies, Llc | Exhaust system and method for mitigating degradation of components of a turbocharged engine with exhaust gas recirculation |
US9151206B2 (en) | 2011-02-28 | 2015-10-06 | Ford Global Technologies, Llc | Method for determining soot mass stored with a particulate filter |
JP2018150928A (ja) * | 2017-03-10 | 2018-09-27 | マツダ株式会社 | エンジンの排気装置 |
KR20180122945A (ko) * | 2017-05-04 | 2018-11-14 | 폭스바겐 악티엔 게젤샤프트 | 내연기관용 배기 시스템, 그리고 상기 배기 시스템의 작동 방법 |
KR102048779B1 (ko) | 2017-05-04 | 2019-11-27 | 폭스바겐 악티엔 게젤샤프트 | 내연기관용 배기 시스템, 그리고 상기 배기 시스템의 작동 방법 |
JP2020041440A (ja) * | 2018-09-07 | 2020-03-19 | トヨタ自動車株式会社 | 内燃機関の排気構造 |
Also Published As
Publication number | Publication date |
---|---|
US20080264050A1 (en) | 2008-10-30 |
JP4525319B2 (ja) | 2010-08-18 |
EP1745199B1 (en) | 2008-01-23 |
WO2006059219A1 (en) | 2006-06-08 |
US7487634B2 (en) | 2009-02-10 |
DE602005004530T2 (de) | 2009-01-22 |
EP1745199A1 (en) | 2007-01-24 |
DE602005004530D1 (de) | 2008-03-13 |
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