JP4869342B2 - 燃料インジェクタ - Google Patents
燃料インジェクタ Download PDFInfo
- Publication number
- JP4869342B2 JP4869342B2 JP2008520786A JP2008520786A JP4869342B2 JP 4869342 B2 JP4869342 B2 JP 4869342B2 JP 2008520786 A JP2008520786 A JP 2008520786A JP 2008520786 A JP2008520786 A JP 2008520786A JP 4869342 B2 JP4869342 B2 JP 4869342B2
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- fuel
- control
- control valve
- injection
- 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
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
- 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
-
- 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
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
-
- 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
- F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
- F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
-
- 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
- F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
- F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
- F02M59/105—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive hydraulic drive
-
- 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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
-
- 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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/0014—Valves characterised by the valve actuating means
- F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
-
- 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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/0014—Valves characterised by the valve actuating means
- F02M63/0028—Valves characterised by the valve actuating means hydraulic
-
- 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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
- F02M63/0049—Combined valve units, e.g. for controlling pumping chamber and injection valve
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)
- Fuel-Injection Apparatus (AREA)
Description
2 第1の制御弁(コモンレール)
3 リークライン
4 供給オリフィス
5 オリフィス
5a 逆止弁
6 ノズルニードル
7 噴射ノズル
8 第2の制御弁
8a 弁体
8b 制御ピストン面
9 圧力変換ピストン
10 逆止弁
11 インジェクタケース
12 制御室
12a 制御ライン
13 バネ
14 ノズル前室
15 燃料通路
16 移送容積
17 作動容積
18 差容積
19 圧力変換器
Claims (8)
- インジェクタケース(11)と、インジェクタケース(11)内に長手方向に可動に配設されたノズルニードル(6)と、燃料を内燃機関の燃焼室に噴射可能にする、ノズルニードル(6)によって選択的に開放すべき噴射ノズル(7)と、噴射ノズル(7)を開放するために第1の制御弁(2)によって圧力除去可能な、ノズルニードル(6)と協働し、燃料圧の作用を受ける制御室(12)と、上昇させた圧力で噴射すべき燃料を移送するための圧力変換器(19)とを有し、圧力変換器(19)が、制御室(12)と油圧連結され、制御室(12)内の燃料の圧力によって操作される第2の制御弁(8)によって制御可能である、燃料アキュムレータ(1)内に高圧下に予め保持された燃料を、高さの異なった少なくとも2つの噴射圧で内燃機関の燃焼室に噴射するための燃料インジェクタにおいて、
第2の制御弁(8)が、制御ピストン面(8b)に制御室(12)内を支配する燃料圧を作用可能な弁体(8a)を備えた3方2位置弁として形成されていることを特徴とする燃料インジェクタ。 - 弁体(8a)には、時間的に遅延して制御室(12)内を支配する燃料圧を作用可能であることを特徴とする請求項1に記載の燃料インジェクタ。
- 圧力変換器(19)が、噴射ノズル(7)と接続した、小さい横断面を備える第1の移送容積(16)をその前面に備え、大きい横断面を備える第2の作動容積(17)をその背面に備える圧力変換ピストン(9)を有し、作動容積(17)には、上昇させた圧力で圧力変換ピストン(9)により燃料を移送するために、第2の制御弁(8)を介して燃料圧を作用可能であることを特徴とする請求項1又は2に記載の燃料インジェクタ。
- 圧力変換器(19)が、噴射ノズル(7)と接続した、小さい横断面を備える第1の移送容積(16)をその前面に備え、大きい横断面を備える第2の作動容積(17)をその背面に備えた圧力変換ピストン(9)を有し、圧力変換ピストン(9)の前面に更にある第3の横断面を備える、作動容積(17)と移送容積(16)の差に相当する差容積(18)は、上昇させた圧力で圧力変換ピストン(9)により燃料を移送するために、第2の制御弁(8)を介して圧力除去可能であることを特徴とする請求項1又は2に記載の燃料インジェクタ。
- 第2の制御弁(8)が、第2の制御弁(8)から圧力変換ピストン(9)に通じるラインを、リークライン(3)と接続するか、燃料アキュムレータ(1)と接続した燃料ライン(15)と接続することを特徴とする請求項1〜4のいずれか1つに記載の燃料インジェクタ。
- 制御ピストン面(8b)が、第2の制御弁(8)の応答の遅延時間を決定するオリフィス(5)を有する接続ラインを介して制御室(12)と連結されていることを特徴とする請求項1〜5のいずれか1つに記載の燃料インジェクタ。
- オリフィス(5)に対して平行に、制御室(12)から第2の制御弁(8)の制御ピストン面(8b)に向かう流れ方向が流通可能な逆止弁(5a)が接続されていることを特徴とする請求項6に記載の燃料インジェクタ。
- 遅延時間内で制御室(12)の圧力除去を行なった場合には、上昇させてない圧力で燃料の前噴射及び/又は後噴射をするために、圧力変換器(19)の有効な制御をしないで噴射ノズル(7)の解放が行なわれ、遅延時間を越えて制御室(12)の圧力除去を行なった場合には、上昇させた圧力で燃料の主噴射をするために、圧力変換器(9)の有効な制御をしてノズルニードル(6)の解放が行なわれることを特徴とする請求項6又は7に記載の燃料インジェクタ。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005033123.8 | 2005-07-15 | ||
DE102005033123A DE102005033123B3 (de) | 2005-07-15 | 2005-07-15 | Kraftstoffinjektor |
PCT/EP2006/006796 WO2007009641A1 (de) | 2005-07-15 | 2006-07-12 | Kraftstoffinjektor |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009501289A JP2009501289A (ja) | 2009-01-15 |
JP4869342B2 true JP4869342B2 (ja) | 2012-02-08 |
Family
ID=36993341
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008520786A Expired - Fee Related JP4869342B2 (ja) | 2005-07-15 | 2006-07-12 | 燃料インジェクタ |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1907686B1 (ja) |
JP (1) | JP4869342B2 (ja) |
KR (1) | KR101001002B1 (ja) |
AT (1) | ATE431901T1 (ja) |
DE (2) | DE102005033123B3 (ja) |
WO (1) | WO2007009641A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DK178655B1 (en) * | 2015-03-20 | 2016-10-17 | Man Diesel & Turbo Filial Af Man Diesel & Turbo Se Tyskland | Fuel valve for injecting fuel into a combustion chamber of a large self-igniting turbocharged two-stroke internal combustion engine |
CN111433450B (zh) * | 2017-12-08 | 2022-01-28 | 沃尔沃卡车集团 | 用于共轨燃料喷射***的装置 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2885076B2 (ja) * | 1994-07-08 | 1999-04-19 | 三菱自動車工業株式会社 | 蓄圧式燃料噴射装置 |
JP2002202021A (ja) * | 2000-12-20 | 2002-07-19 | Robert Bosch Gmbh | 燃料噴射装置 |
JP2003507651A (ja) * | 1999-08-20 | 2003-02-25 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | 内燃機関用の燃料噴射系 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10060089A1 (de) * | 2000-12-02 | 2002-06-20 | Bosch Gmbh Robert | Kraftstoffeinspritzeinrichtung |
DE10229413A1 (de) * | 2002-06-29 | 2004-01-29 | Robert Bosch Gmbh | Druckübersetzersteuerung durch Bewegung eines Einspritzventilgliedes |
-
2005
- 2005-07-15 DE DE102005033123A patent/DE102005033123B3/de not_active Expired - Fee Related
-
2006
- 2006-07-12 AT AT06762543T patent/ATE431901T1/de active
- 2006-07-12 WO PCT/EP2006/006796 patent/WO2007009641A1/de active Application Filing
- 2006-07-12 EP EP06762543A patent/EP1907686B1/de not_active Not-in-force
- 2006-07-12 DE DE502006003778T patent/DE502006003778D1/de active Active
- 2006-07-12 KR KR1020077030330A patent/KR101001002B1/ko not_active IP Right Cessation
- 2006-07-12 JP JP2008520786A patent/JP4869342B2/ja not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2885076B2 (ja) * | 1994-07-08 | 1999-04-19 | 三菱自動車工業株式会社 | 蓄圧式燃料噴射装置 |
JP2003507651A (ja) * | 1999-08-20 | 2003-02-25 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | 内燃機関用の燃料噴射系 |
JP2002202021A (ja) * | 2000-12-20 | 2002-07-19 | Robert Bosch Gmbh | 燃料噴射装置 |
Also Published As
Publication number | Publication date |
---|---|
EP1907686B1 (de) | 2009-05-20 |
KR20080028377A (ko) | 2008-03-31 |
ATE431901T1 (de) | 2009-06-15 |
JP2009501289A (ja) | 2009-01-15 |
DE102005033123B3 (de) | 2006-12-21 |
DE502006003778D1 (de) | 2009-07-02 |
EP1907686A1 (de) | 2008-04-09 |
WO2007009641A1 (de) | 2007-01-25 |
KR101001002B1 (ko) | 2010-12-14 |
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