JP4276203B2 - 内燃機関の燃料インジェクターを制御するためのサーボバルブ - Google Patents
内燃機関の燃料インジェクターを制御するためのサーボバルブ Download PDFInfo
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- JP4276203B2 JP4276203B2 JP2005118446A JP2005118446A JP4276203B2 JP 4276203 B2 JP4276203 B2 JP 4276203B2 JP 2005118446 A JP2005118446 A JP 2005118446A JP 2005118446 A JP2005118446 A JP 2005118446A JP 4276203 B2 JP4276203 B2 JP 4276203B2
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- rod
- shutter
- servo valve
- axial
- outlet passage
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- 239000000446 fuel Substances 0.000 title claims abstract description 25
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 8
- 239000000243 solution Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 229920001780 ECTFE Polymers 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
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
- F02M63/0012—Valves
- F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
- F02M63/0078—Valve member details, e.g. special shape, hollow or fuel passages in the valve member
- F02M63/008—Hollow valve members, e.g. members internally guided
-
- 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
- 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
- F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
- F02M63/004—Sliding valves, e.g. spool valves, i.e. whereby the closing member has a sliding movement along a seat for opening and closing
-
- 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
- F02M63/0043—Two-way valves
-
- 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
- F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
- F02M63/0071—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059 characterised by guiding or centering means in valves including the absence of any guiding means, e.g. "flying arrangements"
-
- 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
- F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
- F02M63/0073—Pressure balanced valves
-
- 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
- F02M2200/28—Details of throttles in fuel-injection apparatus
-
- 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
- F02M2547/00—Special features for fuel-injection valves actuated by fluid pressure
- F02M2547/003—Valve inserts containing control chamber and valve piston
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
駆動手段と、
燃料の入口並びに燃料の出口通路に連通している制御チャンバと、
前記インジェクターのエンドノズルを開閉するために、前記駆動手段によって完全な閉成位置並びに完全な開成位置間を長軸に沿って移動可能なシャッターとを有し、この閉成位置で、前記シャッターは、前記出口通路を閉成し、前記開成位置で、前記シャッターは、前記出口通路の開成を維持するインジェクターのケーシング内に収容されているサーボバルブが与えられる。このサーボバルブは、
前記ケーシングに対する固定位置に、軸方向のロッドをさらに有し、前記出口通路は、このロッドの外側面と通じ、前記シャッターは、ほぼ液密状態で軸方向に摺動するように前記外側面に適合され、そして、前記完全な閉成位置で、燃料の圧力によって生じる軸方向の力を受けないように前記出口通路を閉成することを特徴としている。
Claims (15)
- 内燃機関の燃料インジェクター(1)を制御するためのサーボバルブ(8)であって、
駆動手段(9)と、
燃料の入口(5)並びに燃料の出口通路(22)に連通している制御チャンバ(13)と、
前記インジェクター(1)のエンドノズルを開閉するために、前記駆動手段(9)によって完全な閉成位置並びに完全な開成位置間を長軸(3)に沿って移動可能なシャッター(35)とを具備し、この閉成位置で、前記シャッターは、前記出口通路(22)を閉成し、前記開成位置で、前記シャッターは、前記出口通路(22)の開成を維持するインジェクターのケーシング(2)内に収容されているサーボバルブにおいて、
前記ケーシング(2)に対する固定位置に、軸方向のロッド(29)をさらに具備し、前記出口通路(22)は、このロッド(29)の外側面(30)と通じ、前記シャッター(35)は、ほぼ液密状態で軸方向に摺動するように前記外側面(30)に適合され、そして、前記完全な閉成位置で、燃料の圧力によって生じる軸方向の力を受けないように前記出口通路(22)を閉成し、また、
前記完全な閉成位置と完全な開成位置とを夫々規定している第1の制限ストッパー手段(38)と第2の制限ストッパー手段(41)とをさらに具備し、この第1の制限ストッパー手段(38)と第2の制限ストッパー手段(41)とは、軸方向の前記ロッド(29)によって支持されていることを特徴とするサーボバルブ。 - 前記出口通路(22)は、前記長軸(3)に対して対称的であることを特徴とする請求項1のサーボバルブ。
- 前記出口通路(22)は、径方向で軸方向の前記ロッド(29)と前記シャッター(35)との間に形成された環状のチャンバ(34)内へと通じていることを特徴とする請求項2のサーボバルブ。
- 前記シャッター(35)は、円筒形の内面(36)を有し、このシャッターは、前記外側面(30)を軸方向に摺動し、前記出口通路(22)を径方向に閉成することを特徴とする請求項1ないし3のいずれか1のサーボバルブ。
- 前記駆動手段(9)は、電磁石のアクチェータ(10,11)を有しており、前記シャッター(35)は、この電磁石のアクチェータ(10,11)のアーマチュア(11)と一体的であることを特徴とする請求項1ないし4のいずれか1のサーボバルブ。
- 前記駆動手段(9)は、圧電アクチェータ(10a)を有することを特徴とする請求項1ないし4のいずれか1のサーボバルブ。
- 前記第1の制限ストッパー手段は、軸方向の前記ロッド(29)と一体的に形成された円錐状のショルダー部(38)を有し、前記第2の制限ストッパー手段(41)は、前記軸方向のロッド(29)に装着されたストッパーリング(41)を有していることを特徴とする請求項1のサーボバルブ。
- 前記出口通路(22)は、前記軸方向のロッド(29)と区切られた本体(20)中に軸方向で形成された較正部分(23)を有しており、少なくとも1つの径方向出口部分(31)が、軸方向の前記ロッド(29)に形成され、かつ前記較正部分(23)と液密状態で連通することを特徴とする請求項1ないし7のいずれか1のサーボバルブ。
- 前記較正部分(23)は、前記制御チャンバ(13)近くの位置に形成されていることを特徴とする請求項8のサーボバルブ。
- 前記出口通路(22)は、前記軸方向のロッド中(29)に形成された較正部分(23)を有することを特徴とする請求項1ないし9のいずれか1のサーボバルブ。
- 前記出口通路(22)は、前記軸方向のロッド(29)と基部(26)とに形成された一端部(24)を有しており、この基部(26)は、リングナット(27)によって前記ケーシング(2)に固定され、かつ前記軸方向のロッド(29)と一体的であることを特徴とする請求項1ないし10のいずれか1のサーボバルブ。
- 前記較正部分(23)は、前記軸方向のロッド(29)中に形成されていることを特徴とする請求項10のサーボバルブ。
- 前記軸方向のロッド(29)と前記基部(26)とは、単一部材(25)で形成されていることを特徴とする請求項11のサーボバルブ。
- 前記シャッター(35)は、較正される間隔を隔てて、前記外側面(30)に適合されていることを特徴とする請求項1ないし13のいずれか1のサーボバルブ。
- 前記シャッター(35)は、シール部材の介在によって、前記外側面(30)に装着されていることを特徴とする請求項1ないし13のいずれか1のサーボバルブ。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04425475A EP1612403B1 (en) | 2004-06-30 | 2004-06-30 | Servo valve for controlling an internal combustion engine fuel injector |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006017107A JP2006017107A (ja) | 2006-01-19 |
JP4276203B2 true JP4276203B2 (ja) | 2009-06-10 |
Family
ID=34932593
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005118446A Active JP4276203B2 (ja) | 2004-06-30 | 2005-04-15 | 内燃機関の燃料インジェクターを制御するためのサーボバルブ |
JP2005192051A Active JP4152972B2 (ja) | 2004-06-30 | 2005-06-30 | 内燃機関の燃料噴射器 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005192051A Active JP4152972B2 (ja) | 2004-06-30 | 2005-06-30 | 内燃機関の燃料噴射器 |
Country Status (6)
Country | Link |
---|---|
US (3) | US7219656B2 (ja) |
EP (2) | EP1612403B1 (ja) |
JP (2) | JP4276203B2 (ja) |
AT (2) | ATE356290T1 (ja) |
DE (3) | DE602004004254T2 (ja) |
ES (2) | ES2277229T3 (ja) |
Families Citing this family (92)
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EP1612403B1 (en) * | 2004-06-30 | 2007-01-10 | C.R.F. Società Consortile per Azioni | Servo valve for controlling an internal combustion engine fuel injector |
EP1731752B1 (en) * | 2005-05-27 | 2010-01-20 | C.R.F. Società Consortile per Azioni | Fuel-control servo valve, and fuel injector provided with such servo valve |
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- 2004-06-30 ES ES04425475T patent/ES2277229T3/es active Active
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Also Published As
Publication number | Publication date |
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JP2006017107A (ja) | 2006-01-19 |
EP1612403B1 (en) | 2007-01-10 |
JP4152972B2 (ja) | 2008-09-17 |
DE602005000662D1 (de) | 2007-04-19 |
ES2280076T3 (es) | 2007-09-01 |
EP1612403A1 (en) | 2006-01-04 |
ES2277229T3 (es) | 2007-07-01 |
US20060027684A1 (en) | 2006-02-09 |
DE602004004254T2 (de) | 2007-07-12 |
ATE377705T1 (de) | 2007-11-15 |
US20060000453A1 (en) | 2006-01-05 |
DE602004004254D1 (de) | 2007-02-22 |
DE602005003175T2 (de) | 2008-08-28 |
JP2006017127A (ja) | 2006-01-19 |
ATE356290T1 (de) | 2007-03-15 |
US20070205302A1 (en) | 2007-09-06 |
DE602005000662T2 (de) | 2007-11-22 |
US7219656B2 (en) | 2007-05-22 |
DE602005003175D1 (de) | 2007-12-20 |
US7527036B2 (en) | 2009-05-05 |
EP1612404B1 (en) | 2007-03-07 |
EP1612404A1 (en) | 2006-01-04 |
US7740187B2 (en) | 2010-06-22 |
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