JP4125962B2 - 触媒コンバータを有するディーゼルエンジン - Google Patents
触媒コンバータを有するディーゼルエンジン Download PDFInfo
- Publication number
- JP4125962B2 JP4125962B2 JP2002569577A JP2002569577A JP4125962B2 JP 4125962 B2 JP4125962 B2 JP 4125962B2 JP 2002569577 A JP2002569577 A JP 2002569577A JP 2002569577 A JP2002569577 A JP 2002569577A JP 4125962 B2 JP4125962 B2 JP 4125962B2
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- valve
- internal combustion
- combustion engine
- needle
- 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.)
- Expired - Fee Related
Links
- 230000003197 catalytic effect Effects 0.000 title abstract description 12
- 239000000446 fuel Substances 0.000 claims abstract description 102
- 238000002347 injection Methods 0.000 claims abstract description 39
- 239000007924 injection Substances 0.000 claims abstract description 39
- 238000002485 combustion reaction Methods 0.000 claims abstract description 37
- 238000007906 compression Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 3
- 230000003111 delayed effect Effects 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 238000010531 catalytic reduction reaction Methods 0.000 description 2
- 239000002283 diesel fuel Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
- F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure
- F02M47/027—Electrically actuated valves draining the chamber to release the closing pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
- F02M45/02—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M57/00—Fuel-injectors combined or associated with other devices
- F02M57/02—Injectors structurally combined with fuel-injection pumps
- F02M57/022—Injectors structurally combined with fuel-injection pumps characterised by the pump drive
- F02M57/023—Injectors structurally combined with fuel-injection pumps characterised by the pump drive mechanical
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/20—Varying fuel delivery in quantity or timing
- F02M59/36—Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages
- F02M59/366—Valves being actuated electrically
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
- F02M59/46—Valves
- F02M59/466—Electrically operated valves, e.g. using electromagnetic or piezoelectric operating means
-
- 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
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/30—Controlling fuel injection
- F02D41/38—Controlling fuel injection of the high pressure type
- F02D41/40—Controlling fuel injection of the high pressure type with means for controlling injection timing or duration
- F02D41/402—Multiple injections
- F02D41/405—Multiple injections with post injections
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Electromagnetism (AREA)
- Fuel-Injection Apparatus (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Exhaust Gas After Treatment (AREA)
- Catalysts (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
Description
5 燃焼室
6 燃料噴射器
7 燃料噴射部
7a ニードル弁部
8 ポンプ部
9 逃しおよびニードル制御弁
9a 逃し弁
9b ニードル制御弁
10 エンジンクランク軸
11 カム軸
12 カム要素
12a,12b,12c 期間
13 カム・プロフィール
13a,13b カム・セグメント
15 電子制御ユニット
16,17 センサ
18 アクセルペダル位置
30 ポンププランジャ
31 ハウジング
32 ポンプ室
33 流路
34 チャンバ
35 弁ニードル
36 スプリング
37 噴霧孔
40 ハウジング
41 バルブ室
42 弁本体
43 スピンドル
44 アーマチュア
45 電磁石
46 スプリング
47,49 流路
48 タンク
50 空間
51 ハウジング
52 弁本体
53 スピンドル
54 アーマチュア
55 電磁石
56 スプリング
57 くびれ
60 排気マニホールド
61 触媒コンバータ
A,B,C リフト曲線
Claims (8)
- 内燃機関であって、個々の燃焼室を有する1つ以上のシリンダと、各燃焼室に開口した燃料噴射器と、各燃料噴射器に燃料を供給する各燃料噴射器用の個々の燃料ポンプ手段と、各燃焼室から排気後処理装置へ導通する排気導管と、1つ以上の燃料ポンプ手段に対するカム要素を有し、内燃機関のクランク軸により駆動されるカム軸であって、該カム要素が1回の動作サイクル毎に対応の燃料ポンプ手段に1回のポンプ行程を与える形状のカム曲線を有するものであるカム軸と、各燃料噴射器と協働する逃し弁とニードル制御弁を制御するように構成された電子制御ユニットであって、該制御ユニットに入力する種々の制御パラメータの関数として各ポンプ行程における噴射量と噴射タイミングを制御する電子制御ユニットとを有する内燃機関において、前記カム曲線(13)は、シリンダ内で燃焼が起こらない程度に燃料噴射を少なくとも遅延させることが可能となるよう燃料噴射器(6)における開弁圧を1サイクル中十分長い時間維持するような形状をしているとともに、前記制御ユニット(15)は、内燃機関の圧縮行程中に少なくとも第1の量の燃料を噴射することが可能になるようにするとともに、上記制御パラメータに応じて、その後、少なくとも1回の付加的な量の燃料を噴射し、未燃焼状態で排気ガスとともに排気後処理装置(61)に搬送することが可能になるようにするように逃し弁(9a)およびニードル制御弁(9b)を制御するよう構成されていることを特徴とする内燃機関。
- カム曲線(13)は、少なくとも対応の燃焼室内の排気弁が完全に開になるまでポンプ行程が継続するような形状をしていることを特徴とする請求項2に記載の内燃機関。
- 制御ユニット(15)は、排気弁が完全に開になる前に付加的な量の燃料を噴射するように逃し弁(9a)およびニードル制御弁(9b)を制御するように構成されていることを特徴とする請求項1または請求項2に記載の内燃機関。
- 制御ユニット(15)は、少なくとも内燃機関の毎分回転数と運転者が要求した第1の量の燃料を表す制御ユニットに送られる信号が低エンジン負荷を示す場合に付加的な量の燃料を噴射するように逃し弁(9a)およびニードル制御弁(9b)を制御するように構成されていることを特徴とする請求項1から請求項3までのいずれか1つに記載の内燃機関。
- カム曲線(13)は、対応の燃焼室内のピストンが圧縮工程中に上死点に到達する前にポンプ行程が開始し、排気弁が完全に開になるまでポンプ工程が継続するような形状をしていることを特徴とする請求項1から請求項4までのいずれか1つに記載の内燃機関。
- カム曲線(13)は、排気弁が閉じ始める時に戻り行程が開始するような形状をしていることを特徴とする請求項5に記載の内燃機関。
- 付随する燃料ポンプ手段(8)、逃し弁(9a)およびニードル制御弁(9b)を有する各燃料噴射器(6)は、内燃機関のシリンダヘッド内で一体化ユニット、いわゆるユニット燃料噴射器、を構成することを特徴とする請求項1から請求項5までのいずれか1つに記載の内燃機関。
- 各燃料噴射器は、該燃料噴射器とは別体の燃料ポンプ手段と連通していることを特徴とする請求項1から請求項5までのいずれか1つに記載の内燃機関。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0100719A SE523482C2 (sv) | 2001-03-02 | 2001-03-02 | Dieselmotor med katalysator |
PCT/SE2002/000355 WO2002070889A1 (en) | 2001-03-02 | 2002-02-28 | Diesel engine with catalytic converter |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2004522035A JP2004522035A (ja) | 2004-07-22 |
JP4125962B2 true JP4125962B2 (ja) | 2008-07-30 |
Family
ID=20283195
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2002569577A Expired - Fee Related JP4125962B2 (ja) | 2001-03-02 | 2002-02-28 | 触媒コンバータを有するディーゼルエンジン |
Country Status (8)
Country | Link |
---|---|
US (1) | US7063072B2 (ja) |
EP (1) | EP1364113B1 (ja) |
JP (1) | JP4125962B2 (ja) |
AT (1) | ATE317944T1 (ja) |
BR (1) | BR0207677B1 (ja) |
DE (1) | DE60209210T2 (ja) |
SE (1) | SE523482C2 (ja) |
WO (1) | WO2002070889A1 (ja) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10205750A1 (de) | 2002-02-12 | 2003-08-21 | Bosch Gmbh Robert | Kraftstoffeinspritzeinrichtung für eine Brennkraftmaschine |
GB0229487D0 (en) * | 2002-12-18 | 2003-01-22 | Delphi Tech Inc | Cam arrangement and fuel pump arrangement incorporating a cam arrangement |
JP2008534840A (ja) * | 2005-03-22 | 2008-08-28 | ボルボ ラストバグナー アーベー | 燃料噴射器を制御するための方法 |
US8322132B2 (en) * | 2008-04-30 | 2012-12-04 | Perkins Engines Company Limited | Exhaust treatment system implementing regeneration control |
DE202009017699U1 (de) * | 2009-11-18 | 2010-09-23 | Daude, Otto, Dr.-Ing. MBA | Tangential am Zylinderumfang ausgerichtete Einspritzdüsen für Verbrennungsmotoren mit Gaswechselsteuerung |
WO2015048982A1 (en) * | 2013-10-04 | 2015-04-09 | Volvo Truck Corporation | Cam shaft device and engine comprising such a device |
EP3402978A4 (en) * | 2016-01-13 | 2019-09-04 | Commonwealth Scientific and Industrial Research Organisation | IMPROVED FUEL SYSTEM FOR DIESEL TYPE ENGINES USING CARBONACEOUS AQUEOUS FUEL FUELS |
CN108730085A (zh) * | 2017-04-14 | 2018-11-02 | 康明斯公司 | 低成本共轨燃料系统 |
US10760513B1 (en) * | 2019-04-19 | 2020-09-01 | Caterpillar Inc. | Engine and method for exhaust aftertreatment |
CN111828217A (zh) * | 2019-04-19 | 2020-10-27 | 罗伯特·博世有限公司 | 具有变化凸轮轮廓的泵 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5786536A (en) * | 1980-11-17 | 1982-05-29 | Toyota Motor Corp | Reproduction method of particle catcher and fuel supplier for diesel engine |
JPS5968512A (ja) * | 1982-10-09 | 1984-04-18 | Diesel Kiki Co Ltd | 内燃機関の排気微粒子処理のための分配型燃料噴射ポンプによる燃料供給装置 |
JPS59131518U (ja) * | 1983-02-23 | 1984-09-04 | 株式会社ボッシュオートモーティブ システム | 内燃機関の排気微粒子処理装置 |
CA1331118C (en) * | 1988-10-11 | 1994-08-02 | Yasunari Seki | Failsafe method in connection with valve timing-changeover control for internal combustion engines |
JPH05156993A (ja) * | 1991-12-05 | 1993-06-22 | Hino Motors Ltd | ディーゼル・エンジン |
EP0621400B1 (de) * | 1993-04-23 | 1999-03-31 | Daimler-Benz Aktiengesellschaft | Luftverdichtende Einspritzbrennkraftmaschine mit einer Abgasnachbehandlungseinrichtung zur Reduzierung von Stickoxiden |
DE19746855A1 (de) * | 1997-10-23 | 1999-04-29 | Fev Motorentech Gmbh & Co Kg | Verfahren zur Abgasnachbehandlung bei Kolbenbrennkraftmaschinen mit Kraftstoff-Direkteinspritzung |
US6269791B1 (en) * | 1998-07-22 | 2001-08-07 | Toyota Jidosha Kabushiki Kaisha | Control system for an internal combustion engine |
US6536209B2 (en) * | 2001-06-26 | 2003-03-25 | Caterpillar Inc | Post injections during cold operation |
JP3951899B2 (ja) * | 2002-11-15 | 2007-08-01 | いすゞ自動車株式会社 | ディーゼルエンジンの排気浄化装置 |
US7155901B2 (en) * | 2003-04-15 | 2007-01-02 | Ford Global Technologies, Llc | Catalyst temperature control on an electrically throttled engine |
JP4501720B2 (ja) * | 2004-05-12 | 2010-07-14 | 株式会社デンソー | 内燃機関の排気浄化装置 |
-
2001
- 2001-03-02 SE SE0100719A patent/SE523482C2/sv not_active IP Right Cessation
-
2002
- 2002-02-28 EP EP02700968A patent/EP1364113B1/en not_active Expired - Lifetime
- 2002-02-28 AT AT02700968T patent/ATE317944T1/de not_active IP Right Cessation
- 2002-02-28 BR BRPI0207677-2A patent/BR0207677B1/pt not_active IP Right Cessation
- 2002-02-28 JP JP2002569577A patent/JP4125962B2/ja not_active Expired - Fee Related
- 2002-02-28 DE DE60209210T patent/DE60209210T2/de not_active Expired - Lifetime
- 2002-02-28 US US10/469,588 patent/US7063072B2/en not_active Expired - Fee Related
- 2002-02-28 WO PCT/SE2002/000355 patent/WO2002070889A1/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
US7063072B2 (en) | 2006-06-20 |
SE0100719L (sv) | 2002-09-03 |
DE60209210T2 (de) | 2006-08-10 |
BR0207677A (pt) | 2004-03-09 |
WO2002070889A1 (en) | 2002-09-12 |
JP2004522035A (ja) | 2004-07-22 |
DE60209210D1 (de) | 2006-04-20 |
SE0100719D0 (sv) | 2001-03-02 |
EP1364113A1 (en) | 2003-11-26 |
US20040103649A1 (en) | 2004-06-03 |
EP1364113B1 (en) | 2006-02-15 |
BR0207677B1 (pt) | 2011-04-19 |
SE523482C2 (sv) | 2004-04-20 |
ATE317944T1 (de) | 2006-03-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1959118B1 (en) | Fuel injection controller and fuel injection control system | |
US8175789B2 (en) | Combustion controller for compression-ignition direct-injection engine and engine control system for the same | |
US6536209B2 (en) | Post injections during cold operation | |
WO2002006657A9 (en) | Method and apparatus for delivering multiple fuel injections to the cylinder of an internal combustion engine | |
JP2006348908A (ja) | エンジン制御装置、エンジン制御システム及びエンジン制御方法 | |
JPH0925815A (ja) | 後噴射燃焼排気ガス清浄化システム及びその方法 | |
CN103987931A (zh) | 内燃机及其控制方法 | |
JP4125962B2 (ja) | 触媒コンバータを有するディーゼルエンジン | |
KR100559128B1 (ko) | 촉매 변환기를 가진 4 행정 디젤 기관 | |
CN108397300B (zh) | 发动机系统及控制发动机系统的方法 | |
US20020148435A1 (en) | Accumulator fuel injection system | |
JP2004144086A (ja) | 燃料噴射システムの分割モード動作 | |
US7849834B2 (en) | Method and apparatus for controlling emissions from internal combustion engines | |
GB2394750A (en) | I.c. engine using disabled cylinders to pump secondary air to exhaust emission after-treatment device | |
Ohishi et al. | The new common rail fuel system for the duramax 6600 V8 diesel engine | |
US10125717B2 (en) | Method of operating a fuel injector of an internal combustion engine of a motor vehicle | |
GB2597062A (en) | Secondary air injection system and control method | |
JP2000097089A (ja) | 燃料噴射制御のための方法および装置 | |
JPH06117228A (ja) | ディーゼル機関の燃料噴射ポンプ | |
JP2012193626A (ja) | 内燃機関の燃料供給装置 | |
US20210025298A1 (en) | Pre-lubrication and skip fire operations during engine cranking | |
JPH08100739A (ja) | ディーゼル機関用燃料噴射ポンプ | |
JP2003514187A (ja) | 燃料噴射システム | |
JP2020139410A (ja) | 内燃機関の制御装置 | |
JP3153659B2 (ja) | エンジンの排気浄化装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20050224 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20071113 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20080206 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20080214 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20080422 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20080509 |
|
R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110516 Year of fee payment: 3 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110516 Year of fee payment: 3 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120516 Year of fee payment: 4 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130516 Year of fee payment: 5 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130516 Year of fee payment: 5 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |