JP4152972B2 - 内燃機関の燃料噴射器 - Google Patents
内燃機関の燃料噴射器 Download PDFInfo
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- JP4152972B2 JP4152972B2 JP2005192051A JP2005192051A JP4152972B2 JP 4152972 B2 JP4152972 B2 JP 4152972B2 JP 2005192051 A JP2005192051 A JP 2005192051A JP 2005192051 A JP2005192051 A JP 2005192051A JP 4152972 B2 JP4152972 B2 JP 4152972B2
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- Prior art keywords
- injector
- axial
- fuel
- shutter
- annular
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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
- 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
Description
この噴射器は、当該内燃機関の各シリンダに燃料を噴射するためのノズルで終結し、且つ、
− 軸方向に伸びる中空の噴射器のボディと;
− 前記噴射器のボディに対して軸方向に移動可能で、前記ノズルを開閉するコントロール・ロッドと;
− 前記噴射器のボディの中に収容されたコントロール・サーボバルブと;
を備えており、
当該サーボバルブは、
a)電動アクチュエータを備え;
b)コントロール室を備え、このコントロール室は、一方の側で前記コントロール・ロッドによって軸方向の境界が定められ、燃料入口とつながり、且つ、調節部を備えた吐出経路を有しており;
c)シャッターを備え、このシャッターは、前記電動アクチュエータのコントロール下で、閉鎖位置と開放位置との間で、軸方向に移動可能であり、閉鎖位置では、このシャッターが前記吐出経路を閉じ、開放位置では、このシャッターが前記吐出経路を開いて、前記コントロール室内の圧力を変化させ、それによって前記コントロール・ロッドの軸方向運動を生じさせ;
当該燃料噴射器は下記特徴を備えている:
− 前記コントロール・サーボバルブはまた、前記噴射器のボディに対して固定された軸方向ロッドを備え、その外側の側面に前記吐出経路が開口し;
− 前記シャッターは、前記外側の側面に取り付けられ、実質的に液密な状態で軸方向にスライドし、前記閉鎖位置において、前記吐出経路を閉じ、それによって、燃料により、結果として実質的にゼロの軸方向圧力を受けるように構成され;
− 前記調節部は、前記シャッターと前記軸方向ロッドの間の閉鎖領域の近くで、燃料の吐出流の中に、渦および/またはキャビテーションを作り出すように構成されている。
Claims (10)
- 内燃機関の燃料噴射器(1)であって;
当該噴射器は、当該内燃機関の各シリンダに燃料を噴射するためのノズルで終結し、且つ、
− 軸方向(3)に伸びる中空の噴射器のボディ(2)と;
− 前記噴射器のボディ(2)に対して軸方向に移動可能で、前記ノズルを開閉するコントロール・ロッド(10)と;
− 前記噴射器のボディ(2)の中に収容されたコントロール・サーボバルブと;
を備えており、
当該サーボバルブは、
a)電動アクチュエータを備え;
b)コントロール室(23)を備え、このコントロール室は、一方の側で前記コントロール・ロッド(10)によって軸方向の境界が定められ、燃料入口(4)とつながり、且つ、調節部(42,52)を備えた吐出経路(26、48)を有しており;
c)シャッター(17)を備え、このシャッターは、前記電動アクチュエータのコントロール下で、閉鎖位置と開放位置との間で軸方向に移動可能であり、閉鎖位置では、このシャッターが前記吐出経路(26、48)を閉じ、開放位置では、このシャッターが前記吐出経路(26、48)を開いて、前記コントロール室(23)内の圧力を変化させ、それによって前記コントロール・ロッド(10)の軸方向運動を生じさせ;
当該燃料噴射器は下記特徴を備えている:
− 前記コントロール・サーボバルブはまた、前記噴射器のボディ(2)に対して固定された軸方向ロッド(33)を備え、その外側の側面(34)に前記吐出経路(26、48)が開口し;
− 前記シャッター(17)は、前記外側の側面(34)に取り付けられ、実質的に液密な状態で軸方向にスライドし、前記閉鎖位置において、前記吐出経路(26、48)を閉じ、それによって、燃料により、結果として実質的にゼロの軸方向圧力を受けるように構成され;
− 前記調節部(42,52)は、前記シャッター(17)と前記軸方向ロッド(33)の間の閉鎖領域の近くで、燃料の吐出流の中に、渦および/またはキャビテーションを作り出すように構成されている。 - 下記特徴を備えた請求項1に記載の噴射器:
前記調節部(42,52)は、前記吐出経路(26、48)の出口の近くに形成されている。 - 下記特徴を備えた請求項1または2に記載の噴射器:
前記調節部(42)は、前記軸方向ロッド(33)の中に形成されている。 - 下記特徴を備えた請求項3に記載の噴射器:
前記調節部(42)は、径方向に伸びている。 - 下記特徴を備えた請求項1から3のいずれか1項に記載の噴射器:
前記吐出経路(48)は、直線方向(49)に形成されている。 - 下記特徴を備えた請求項1から5のいずれか1項に記載の噴射器:
前記吐出経路(26、48)は、前記調節部(42,52)より大きい断面積を有する部分(43,53)で終結している。 - 下記特徴を備えた請求項1から6のいずれか1項に記載の噴射器:
前記吐出経路(26、48)は、固定された単一のボディ(28)の中に、その全体が形成され、
この単一のボディ(28)は、前記軸方向ロッド(33)を備え、前記コントロール・ロッド(10)の反対側で前記コントロール室(23)を軸方向に規定している。 - 下記特徴を備えた請求項7に記載の噴射器:
前記コントロール室(23)は、前記固定されたボディ(28)とは別個の弁体(8)の一部を構成する環状部分(11a)によって、径方向の境界が定められ;
前記固定されたボディ(28)は、前記軸方向ロッド(33)より径が大きいベース部分(30)を備え、
このベース部分は、前記コントロール室(23)を軸方向に規定し、前記弁体(8)に対して軸方向に保持されている。 - 下記特徴を備えた請求項1から8のいずれか1項に記載の噴射器:
前記コントロール室(23)は、環状部分(11a)により径方向の境界が定められ、
この環状部分は、その外側に、前記コントロール室(23)を前記入口(4)につなげる環状のチャンバー(25c)を規定し;
前記環状のチャンバー(25c)は、
前記環状部分(11a)と前記噴射器のボディ(2)の間に挿入されたシールリング(62)を収容する第一の環状間隙(61)と、
前記環状部分(11a)のショルダー部(60)により軸方向の境界が定められ、前記第一の環状間隙(61)より小さい径の第二の環状間隙(59)と、を備えている。 - 下記特徴を備えた請求項9に記載の噴射器:
前記第一及び前記第二の環状間隙(61,59)は、前記噴射器のボディ(2)上に、第一の環状間隙から第二の環状間隙へ収束する円錐面(58)により互いに接続された各円筒面(57,56)によって、規定されている。
Applications Claiming Priority (2)
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 |
EP05425384A EP1612404B1 (en) | 2004-06-30 | 2005-05-27 | Internal combustion engine fuel injector |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006017127A JP2006017127A (ja) | 2006-01-19 |
JP4152972B2 true JP4152972B2 (ja) | 2008-09-17 |
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 Before (1)
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 |
Country Status (6)
Country | Link |
---|---|
US (3) | US7219656B2 (ja) |
EP (2) | EP1612403B1 (ja) |
JP (2) | JP4276203B2 (ja) |
AT (2) | ATE377705T1 (ja) |
DE (3) | DE602004004254T2 (ja) |
ES (2) | ES2277229T3 (ja) |
Cited By (1)
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---|---|---|---|---|
CN110529316A (zh) * | 2019-08-22 | 2019-12-03 | 一汽解放汽车有限公司 | 一种燃料喷射阀及发动机 |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110529316A (zh) * | 2019-08-22 | 2019-12-03 | 一汽解放汽车有限公司 | 一种燃料喷射阀及发动机 |
CN110529316B (zh) * | 2019-08-22 | 2020-11-03 | 一汽解放汽车有限公司 | 一种燃料喷射阀及发动机 |
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EP1612403A1 (en) | 2006-01-04 |
US20070205302A1 (en) | 2007-09-06 |
EP1612403B1 (en) | 2007-01-10 |
ATE377705T1 (de) | 2007-11-15 |
JP4276203B2 (ja) | 2009-06-10 |
ES2280076T3 (es) | 2007-09-01 |
DE602005000662D1 (de) | 2007-04-19 |
DE602005003175T2 (de) | 2008-08-28 |
US7219656B2 (en) | 2007-05-22 |
US20060000453A1 (en) | 2006-01-05 |
EP1612404B1 (en) | 2007-03-07 |
DE602004004254T2 (de) | 2007-07-12 |
DE602005003175D1 (de) | 2007-12-20 |
US7527036B2 (en) | 2009-05-05 |
DE602004004254D1 (de) | 2007-02-22 |
JP2006017107A (ja) | 2006-01-19 |
US7740187B2 (en) | 2010-06-22 |
JP2006017127A (ja) | 2006-01-19 |
ES2277229T3 (es) | 2007-07-01 |
DE602005000662T2 (de) | 2007-11-22 |
EP1612404A1 (en) | 2006-01-04 |
ATE356290T1 (de) | 2007-03-15 |
US20060027684A1 (en) | 2006-02-09 |
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