JP4404640B2 - 定置の燃焼機関において燃料を噴射するための装置 - Google Patents
定置の燃焼機関において燃料を噴射するための装置 Download PDFInfo
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- JP4404640B2 JP4404640B2 JP2003574983A JP2003574983A JP4404640B2 JP 4404640 B2 JP4404640 B2 JP 4404640B2 JP 2003574983 A JP2003574983 A JP 2003574983A JP 2003574983 A JP2003574983 A JP 2003574983A JP 4404640 B2 JP4404640 B2 JP 4404640B2
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- pressure
- injector
- fuel
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- conduit
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Classifications
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- 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
- F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
- F02M63/0205—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively for cutting-out pumps or injectors in case of abnormal operation of the engine or the injection apparatus, e.g. over-speed, break-down of fuel pumps or injectors ; for cutting-out pumps for stopping the engine
- F02M63/0215—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively for cutting-out pumps or injectors in case of abnormal operation of the engine or the injection apparatus, e.g. over-speed, break-down of fuel pumps or injectors ; for cutting-out pumps for stopping the engine by draining or closing fuel conduits
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- 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
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- 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
- F02M55/025—Common rails
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- 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
- F02M55/04—Means for damping vibrations or pressure fluctuations in injection pump inlets or outlets
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- 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
- F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
- F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F7/00—Casings, e.g. crankcases or frames
- F02F2007/0097—Casings, e.g. crankcases or frames for large diesel engines
-
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/40—Fuel-injection apparatus with fuel accumulators, e.g. a fuel injector having an integrated fuel accumulator
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)
- Combustion Methods Of Internal-Combustion Engines (AREA)
Description
乗り物用機関、定置の機関(発電用機関)として、または船舶を駆動するために使用される燃焼機関は一般に2シリンダと20シリンダとの間のシリンダ数を有している。これらの燃焼機関において、それぞれのシリンダの孔直径は幅広い範囲内にあり、部分的には大型ディーゼル機関で500mmである。シリンダ数に応じて個別的に細分化された、個々にシリンダ数にみあった燃料噴射システムが使用される。
ドイツ連邦共和国特許公開第19837332号明細書はポンプユニット内の圧力形成を制御するための制御ユニットに関している。制御ユニットは制御弁と該制御弁に結合された弁操作ユニットとを有している。制御弁は流れ方向で内向き開くI‐弁として形成されており、該I‐弁は、制御ユニットのケーシング内に軸方向摺動可能に支承された弁体を有しており、該弁体は制御弁の閉鎖時に内側から制御弁の弁座上に座着する。絞り装置が設けられており、該絞り装置によって、制御弁が小さな行程hだけ開いた際に制御弁を通る流れが絞られる。制御弁がこの行程距離だけ開放された際に、この弁座は依然として開いたままであるが、しかし、制御弁に形成された別の弁座が閉じられ、その結果、搬送された媒体が絞り孔を介して制御弁を通流する。制御弁によって流れがこのように絞られることにより、システムの高圧領域内にはまず始めに低圧が形成される。これに対して、制御弁が全閉されると、第1の弁座のみならず別の弁座も閉じられ、このことによりパイパス接続が中断される。このことが、ポンプユニットと低圧領域システムとの間に高圧領域と同様の高圧を形成せしめる。
本発明による解決手段の利点とするところは特に、コモンレール構成部分の代わりに、中央に配置された蓄圧器との接続のための高圧導管区分を使用することにより、インゼクタ構造原理が燃焼機関のシリンダ数にも、エンジン形状(V形配列、W形配列、列形配列)にも無関係に使用されることができることにある。高圧導管区分自体は、個々のインゼクタを互いに連通せしめ、かつ交換可能であり、かつ燃焼機関の個々のシリンダバンクのシリンダの種々異なるシリンダ間隔に適合されることができる。提案された本解決手段は噴射システムの構造における柔軟性の向上と、シリンダ配列がV形配列であれ、W形配列であれ、または列形配列であれ種々異なるエンジン形状への簡単な適応性を提供する。
図1には噴射システムのコンポーネントが示されている。
Claims (9)
- 燃焼機関で使用するための燃料用の噴射システムであって、燃料タンク(1)から、燃焼機関のシリンダに通じた少なくとも1つの高圧導管(9,10)に燃料を供給するための圧送用フィードユニット(2,3)を備えており、少なくとも1つの高圧導管(9,10)を介して多数の燃料インゼクタ(11)へ燃料が供給されるようになっており、これらの燃料インゼクタが、燃焼機関の燃焼室内に燃料を供給するインゼクタノズル(16)を有している形式のものにおいて、
少なくとも1つの高圧導管(9,10)が、個々の燃料インゼクタ(11)を互いに連通させる導管区分(17,17.1,17.2)を有しており、前記燃料インゼクタが、インゼクタケーシング(20)内に組み込まれたそれぞれ1つの蓄圧室(36,36.1)を有しており、燃料インゼクタ(11)のヘッド領域(15)内に通路(44)が延びており、該通路が高圧導管(9,10)の導管区分(17,17.1)を介して高圧負荷されており、かつ、燃料インゼクタ(11)のヘッド領域(15)内で流入絞り(37)が蓄圧室(36)へ分岐しており、インゼクタ(11)が、インゼクタボディ(20)と、制御部分(21)と、中間板(22)と、インゼクタノズル(16)とからモジュラ状に構成されており、中間板(22)に、制御室(27)を圧力リリーフもしくは圧力負荷する絞りエレメント(28,30)が形成され、
蓄圧室(36)の容積が最大噴射量の50倍以上80倍未満に相応することを特徴とする、定置の燃焼機関において燃料を噴射するための装置。 - 蓄圧室(36)がインゼクタボディ(20)のヘッド領域(15)内に配置されている、請求項1記載の噴射システム。
- 蓄圧室(36)がインゼクタボディ(20)内で縦向きに配置されている、請求項1記載の噴射システム。
- 蓄圧室(36)がインゼクタボディ(20)内に横向きに配置されている、請求項2記載の噴射システム。
- インゼクタボディ(20)内の蓄圧室(36)が、別の蓄圧室(36.1)を有する高圧接続部材(100)を介して導管区分(17,17.1,17.2)に連通している、請求項1記載の噴射システム。
- 燃料インゼクタ(11)のヘッド領域(15)が挿入部材(51)として形成されており、該挿入部材がインゼクタボディ(20)に密に結合されている、請求項1記載の噴射システム。
- ばね負荷された流量制限器(35)が、インゼクタボディ(20)内の蓄圧室(36)の下流側に接続されており且つノズルニードル室(40)に通じる燃料高圧導管(29)の上流側に接続されている、請求項1記載の噴射システム。
- 制御室(27)がスリーブ(25)と、該スリーブに対して相対的に運動可能なノズルニードル(23)と、中間板(22)とによって制限されている、請求項1記載の噴射システム。
- 燃料インゼクタ(11)の蓄圧室(36)内の圧力レベルがフィードユニット(2,3)の1つに組み込まれた蓄圧器(5)内を支配する圧力レベルに相応するように、蓄圧室(36)に対応して配置された流入絞り(37)が設計されている、請求項1記載の噴射システム。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10210282A DE10210282A1 (de) | 2002-03-08 | 2002-03-08 | Vorrichtung zum Einspritzen von Kraftstoff an stationären Verbrennungskraftmaschinen |
PCT/DE2003/000139 WO2003076794A1 (de) | 2002-03-08 | 2003-01-20 | Vorrichtung zum einspritzen von kraftstoff an stationären verbrennungskraftmaschinen |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005519233A JP2005519233A (ja) | 2005-06-30 |
JP4404640B2 true JP4404640B2 (ja) | 2010-01-27 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2003574983A Expired - Lifetime JP4404640B2 (ja) | 2002-03-08 | 2003-01-20 | 定置の燃焼機関において燃料を噴射するための装置 |
Country Status (7)
Country | Link |
---|---|
US (1) | US7025045B2 (ja) |
EP (1) | EP1485609B1 (ja) |
JP (1) | JP4404640B2 (ja) |
CN (1) | CN100365269C (ja) |
AT (1) | ATE308677T1 (ja) |
DE (2) | DE10210282A1 (ja) |
WO (1) | WO2003076794A1 (ja) |
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DE3119050A1 (de) * | 1981-05-05 | 1982-11-18 | Gebrüder Sulzer AG, 8401 Winterthur | "brennstoffeinspritzvorrichtung mit elektromagnetisch betaetigtem umschaltventil" |
DE3505229A1 (de) * | 1985-02-05 | 1986-08-07 | Gebrüder Sulzer AG, Winterthur | Vorrichtung zum einspritzen von in einer fluessigkeit aufgeschwemmten, feinteiligem, festem brennstoff in den brennraum einer hubkolbenbrennkraftmaschine |
CH668621A5 (de) * | 1986-01-22 | 1989-01-13 | Dereco Dieselmotoren Forschung | Kraftstoffeinspritzanlage fuer eine brennkraftmaschine. |
US4796577A (en) * | 1986-06-16 | 1989-01-10 | Baranescu George S | Injection system with pilot injection |
DE4030490C2 (de) * | 1989-09-29 | 1999-02-04 | Denso Corp | Vorrichtung zur Kraftstoffzufuhr in einer Mehrzylinder-Brennkraftmaschine |
US5012786A (en) * | 1990-03-08 | 1991-05-07 | Voss James R | Diesel engine fuel injection system |
EP0531533B1 (en) * | 1991-01-14 | 1997-03-19 | Nippondenso Co., Ltd. | Pressure accumulation type fuel jetting device |
DE4238727C2 (de) * | 1992-11-17 | 2001-09-20 | Bosch Gmbh Robert | Magnetventil |
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DE19712135C1 (de) * | 1997-03-22 | 1998-08-13 | Mtu Friedrichshafen Gmbh | Kraftstoffeinspritzsystem für eine Brennkraftmaschine |
DE19837332A1 (de) * | 1998-08-18 | 2000-02-24 | Bosch Gmbh Robert | Steuereinheit zur Steuerung des Druckaufbaus in einer Pumpeneinheit |
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JP2000205081A (ja) | 1999-01-06 | 2000-07-25 | Usui Internatl Ind Co Ltd | ディ―ゼル内燃機関の蓄圧式燃料噴射システム |
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DE10026286A1 (de) * | 2000-05-26 | 2001-12-13 | Orange Gmbh | Einspritzventil zum Einspritzen von Kraftstoff in den Brennraum einer Brennkraftmaschine |
US6595188B2 (en) * | 2001-12-04 | 2003-07-22 | Caterpillar Inc | Compact valve assembly and fuel injector using same |
-
2002
- 2002-03-08 DE DE10210282A patent/DE10210282A1/de not_active Ceased
-
2003
- 2003-01-20 JP JP2003574983A patent/JP4404640B2/ja not_active Expired - Lifetime
- 2003-01-20 EP EP03704234A patent/EP1485609B1/de not_active Expired - Lifetime
- 2003-01-20 DE DE50301551T patent/DE50301551D1/de not_active Expired - Lifetime
- 2003-01-20 US US10/477,235 patent/US7025045B2/en not_active Expired - Lifetime
- 2003-01-20 WO PCT/DE2003/000139 patent/WO2003076794A1/de active IP Right Grant
- 2003-01-20 AT AT03704234T patent/ATE308677T1/de not_active IP Right Cessation
- 2003-01-20 CN CNB038001853A patent/CN100365269C/zh not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP1485609A1 (de) | 2004-12-15 |
WO2003076794A1 (de) | 2003-09-18 |
CN100365269C (zh) | 2008-01-30 |
US20040187848A1 (en) | 2004-09-30 |
ATE308677T1 (de) | 2005-11-15 |
JP2005519233A (ja) | 2005-06-30 |
DE50301551D1 (de) | 2005-12-08 |
CN1507538A (zh) | 2004-06-23 |
EP1485609B1 (de) | 2005-11-02 |
DE10210282A1 (de) | 2003-09-25 |
US7025045B2 (en) | 2006-04-11 |
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