JPH0481556A - Water injector for internal combustion engine - Google Patents
Water injector for internal combustion engineInfo
- Publication number
- JPH0481556A JPH0481556A JP2192440A JP19244090A JPH0481556A JP H0481556 A JPH0481556 A JP H0481556A JP 2192440 A JP2192440 A JP 2192440A JP 19244090 A JP19244090 A JP 19244090A JP H0481556 A JPH0481556 A JP H0481556A
- Authority
- JP
- Japan
- Prior art keywords
- water
- cylinder
- chamber
- piston
- pressurizing
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 124
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 26
- 238000002347 injection Methods 0.000 claims abstract description 33
- 239000007924 injection Substances 0.000 claims abstract description 33
- 239000000446 fuel Substances 0.000 abstract description 4
- 239000010705 motor oil Substances 0.000 abstract description 4
- 238000010790 dilution Methods 0.000 abstract description 3
- 239000012895 dilution Substances 0.000 abstract description 3
- 239000000470 constituent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 206010021143 Hypoxia Diseases 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/022—Adding fuel and water emulsion, water or steam
- F02M25/025—Adding water
- F02M25/03—Adding water into the cylinder or the pre-combustion chamber
-
- 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
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/022—Adding fuel and water emulsion, water or steam
- F02M25/0221—Details of the water supply system, e.g. pumps or arrangement of valves
- F02M25/0225—Water atomisers or mixers, e.g. using ultrasonic waves
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野コ
本発明は、ＮＯＸを低減させるための内燃機関の水噴射
装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a water injection device for an internal combustion engine for reducing NOx.
［従来の技術］
従来、内燃機関とくにディーゼル機関において、水を吸
気管を介して或いは直接燃焼室内に噴射し、水の蒸発に
よりりンダ内燃焼温度を低下させ、また、水蒸気による
吸気の希釈により、局部的に酸素不足の状態を生じせし
め、ＮＯｘの低減を図る技術が知られている（例えば、
実開昭５８−１３９５６６号公報、実開昭６０−８４７
５５号公報、実開昭６３−２８５５号公報、特開昭８０
−７３０３６号公報参照）。[Prior Art] Conventionally, in internal combustion engines, especially diesel engines, water is injected through the intake pipe or directly into the combustion chamber, and the combustion temperature in the cylinder is lowered by evaporation of the water, and the combustion temperature in the cylinder is lowered by diluting the intake air with water vapor. , there are known techniques for reducing NOx by creating a localized oxygen deficiency state (for example,
Utility Model Publication No. 58-139566, Utility Model Application Publication No. 60-847
Publication No. 55, Publication of Utility Model Publication No. 63-2855, Japanese Patent Application Publication No. 1980
(Refer to Publication No.-73036).
［発明が解決しようとする課題］
しかしながら、上記従来の技術においては、負荷の変化
に応じた水噴射量の制御が困難であるという問題を有し
ている。また、エンジンおよび水噴射ノズルにおける錆
の発生や水の凍結により、耐久性が低下するとともに、
水によりエンジンオイルが希釈されるという問題を有し
ている。[Problems to be Solved by the Invention] However, the above-mentioned conventional technology has a problem in that it is difficult to control the water injection amount according to changes in load. In addition, the durability of the engine and water injection nozzles decreases due to rust and water freezing.
The problem is that the engine oil is diluted by water.
本発明は上記問題を解決するものであって、シリンダ内
圧力（温度）が所定値以上のときのみシリンダ内に水を
噴射し、必要なときのみ燃焼温度を低下させてＮＯｘを
低減させることができ、エンジンの錆の発生およびエン
ジンオイルの希釈を防止することができる内燃機関の水
噴射装置を提供することを目的とする。The present invention solves the above problem by injecting water into the cylinder only when the cylinder internal pressure (temperature) is above a predetermined value, and reducing NOx by lowering the combustion temperature only when necessary. An object of the present invention is to provide a water injection device for an internal combustion engine, which can prevent rusting of the engine and dilution of engine oil.
［課題を解決するための手段］
そのために本発明の内燃機関の水噴射装置は、シリンダ
ヘッド５内に形成される水供給路１６、水加圧室１８お
よびピストン室１９と、水加圧室１８の水供給側に設け
られる逆止弁２３と、前記水加圧室１８とピストン室１
９内に摺動自在に嵌合される水加圧用ピストン２４と、
前記水加圧室１８内の水をシリンダ３内に噴射可能にす
る水噴射ノズル装置１３とを有し、前記水加圧用ピスト
ン２４は、水加圧室１８側端の受圧面積よりもシリンダ
３側端の受圧面積が犬になるように形成し、シリンダ内
圧力が所定値以上のときに水加圧用ピストン２４を作動
させることを特徴とする。[Means for Solving the Problems] For this purpose, the water injection device for an internal combustion engine of the present invention includes a water supply passage 16, a water pressurization chamber 18, a piston chamber 19, and a water pressurization chamber formed in the cylinder head 5. A check valve 23 provided on the water supply side of 18, the water pressurizing chamber 18 and the piston chamber 1
a water pressurizing piston 24 that is slidably fitted into the interior of the water pressurizing piston 9;
It has a water injection nozzle device 13 that can inject the water in the water pressurizing chamber 18 into the cylinder 3, and the water pressurizing piston 24 has a pressure receiving area of the water pressurizing chamber 18 side end that is larger than the cylinder 3. It is characterized in that the pressure-receiving area at the side end is shaped like a dog, and the water pressurizing piston 24 is activated when the cylinder internal pressure is equal to or higher than a predetermined value.
なお、上記構成に付加した番号は、理解を容品にするた
めに図面と対比させるためのもので、これにより本発明
の構成が何ら限定されるものではない。Note that the numbers added to the above configurations are for comparison with the drawings for easy understanding, and the configurations of the present invention are not limited thereby.
［作用コ
本発明においては例えば第１図に示すように、水加圧室
１８内に水が供給されている状態でピストン１が上昇し
シリンダ３圧力が所定値以上になると、水加工装置１２
内の水加圧用ピストン２４がスプリング２５に打ち勝っ
て上昇するため、水加圧室１８の水圧により逆止弁２３
は閉じ、加圧された水は水供給路１７から水噴射ノズル
装置１３の水通路２６を経て水噴射ノズル２７ａからシ
リンダ３内の燃焼室θ内に噴射される。[Operations] In the present invention, as shown in FIG. 1, for example, when the piston 1 rises and the cylinder 3 pressure exceeds a predetermined value while water is being supplied to the water pressurizing chamber 18, the water processing device 12
Since the water pressurizing piston 24 inside overcomes the spring 25 and rises, the water pressure in the water pressurizing chamber 18 causes the check valve 23 to rise.
is closed, and the pressurized water is injected from the water supply path 17 through the water passage 26 of the water injection nozzle device 13 and into the combustion chamber θ in the cylinder 3 from the water injection nozzle 27a.
［実施例コ
以下、本発明の実施例を図面を参照しつつ説明する。第
１図は本発明に係わる内燃機関の水噴射装置の１実施例
を示す断面図である。[Embodiments] Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a sectional view showing one embodiment of a water injection device for an internal combustion engine according to the present invention.
第１図において、１はピストン、２はピストンリング、
３はシリンダ、４はガスケット、５はシリンダヘッドを
示し、ピストン１の頂部には燃焼室６が形成され、シリ
ンダヘッド５には、燃料噴射弁７および水噴射装置９が
取付けられる。In Fig. 1, 1 is a piston, 2 is a piston ring,
3 is a cylinder, 4 is a gasket, and 5 is a cylinder head. A combustion chamber 6 is formed at the top of the piston 1, and a fuel injection valve 7 and a water injection device 9 are attached to the cylinder head 5.
水噴射装置９は、水タンク１０、給水ポンプ１１、水加
圧装置１２および水噴射ノズル装置１３からなり、配管
１４．１５により連結されている。The water injection device 9 consists of a water tank 10, a water supply pump 11, a water pressurizing device 12, and a water injection nozzle device 13, which are connected by piping 14.15.
シリンダヘッド５内には、水供給路１６．１７水加圧室
１８、ピストン室１９および排気路２０が形成され、水
加圧室１８の上部には、弁座２１が固定されるとともに
、該弁座２１にスプリング２２を介して逆止弁２３が取
付けられる。また、前記水加圧室１８とピストン室１９
内には、水加圧用ピストン２４が摺動自在に嵌合され、
スプリング２５によりシリンダ３側に付勢されるととも
に、水加圧用ピストン２４のシリンダ３側端は、シリン
ダヘッド５に支持されている。該水加圧用ピストン２４
は、水加圧室１８側端の受圧面積よりもシリンダ３側端
の受圧面積が大になるように形成されている。Inside the cylinder head 5, a water supply passage 16, 17, a water pressurization chamber 18, a piston chamber 19, and an exhaust passage 20 are formed, and a valve seat 21 is fixed to the upper part of the water pressurization chamber 18. A check valve 23 is attached to the valve seat 21 via a spring 22. In addition, the water pressurizing chamber 18 and the piston chamber 19
A water pressurizing piston 24 is slidably fitted inside.
The water pressurizing piston 24 is urged toward the cylinder 3 side by the spring 25, and the cylinder 3 side end of the water pressurizing piston 24 is supported by the cylinder head 5. The water pressurizing piston 24
is formed so that the pressure receiving area at the side end of the cylinder 3 is larger than the pressure receiving area at the water pressurizing chamber 18 side end.
前記したスプリング２５のばね力は、シリンダ３内の圧
力が所定値に達すると、すなわちシリンダ３内圧力を検
知して、水加圧用ピストン２４が上昇するように設定す
る。The spring force of the spring 25 described above is set so that when the pressure inside the cylinder 3 reaches a predetermined value, that is, when the pressure inside the cylinder 3 is detected, the water pressurizing piston 24 rises.
水噴射ノズル装置１３は、中空シリンダ２５と、該シリ
ンダ２５内に形成される水通路２６と、中空シリンダ２
５内に摺動可能に設けられるスプール２７と、該スプー
ル２７の先端側に形成される水噴射ノズル２７ａとを有
し、水供給路１７から中空シリンダ２５内の水通路２６
内に水が供給されると、スプール２７が摺動し水噴射ノ
ズル２７ａから水が燃焼室６内に噴射するように構成し
ている。The water injection nozzle device 13 includes a hollow cylinder 25, a water passage 26 formed in the cylinder 25, and a hollow cylinder 25.
5, and a water injection nozzle 27a formed at the distal end side of the spool 27.
When water is supplied into the combustion chamber 6, the spool 27 slides and water is injected into the combustion chamber 6 from the water injection nozzle 27a.
第２図は燃焼室上部に配置される構成部材の模式図を示
し、燃料噴射弁７の燃料噴射ノズル７ａは、燃焼室６の
中心部に対向して配置されるとともに、該噴射ノズル７
ａと離れた位置に水噴射装置９の水噴射ノズル２７ａお
よび水加圧用ピストン２４が配置されている。なお、２
８は排気弁、２９は吸気弁の位置を示している。FIG. 2 shows a schematic diagram of the constituent members arranged in the upper part of the combustion chamber, and the fuel injection nozzle 7a of the fuel injection valve 7 is arranged facing the center of the combustion chamber 6.
A water injection nozzle 27a of the water injection device 9 and a water pressurizing piston 24 are arranged at a position apart from a. In addition, 2
8 indicates the position of the exhaust valve, and 29 indicates the position of the intake valve.
上記構成からなる本発明の作用について説明す水供給ポ
ンプ１１により、水タンク１０の水は、配管１４、水供
給路１６、逆止弁２３を経て水加圧室１８内に供給され
ている。この状態でピストン１が上昇しシリンダ３圧力
が所定値以上になると、水加工装置１２内の水加圧用ピ
ストン２４がスプリング２５に打ち勝って上昇する。こ
のとき、ピストン室１９のエアは排気路２０から排出さ
れる。その結果、水加圧室１８の水圧により逆止弁２３
は閉じ、加圧された水は水供給路１７から水噴射ノズル
装置１３の水通路２６を経て水噴射ノズル２７ａからシ
リンダ３内の燃焼室θ内に噴射される。余った水は水噴
射ノズル装置１３の上部から配管１５を経て水タンク１
０に戻る。Water from the water tank 10 is supplied into the water pressurizing chamber 18 via the piping 14, the water supply path 16, and the check valve 23 by the water supply pump 11 having the above-described structure. In this state, when the piston 1 rises and the cylinder 3 pressure reaches a predetermined value or more, the water pressurizing piston 24 in the water machining device 12 overcomes the spring 25 and rises. At this time, the air in the piston chamber 19 is exhausted from the exhaust path 20. As a result, the water pressure in the water pressurizing chamber 18 causes the check valve 23 to
is closed, and the pressurized water is injected from the water supply path 17 through the water passage 26 of the water injection nozzle device 13 and into the combustion chamber θ in the cylinder 3 from the water injection nozzle 27a. The remaining water flows from the top of the water injection nozzle device 13 through the pipe 15 to the water tank 1.
Return to 0.
第３図は本発明の他の実施例を示す内燃機関の一部断面
図である。なお、第１図の実施例と同一の構成について
は同一番号を付けて説明を省略する。FIG. 3 is a partial sectional view of an internal combustion engine showing another embodiment of the present invention. Components that are the same as those in the embodiment shown in FIG. 1 are given the same reference numerals and their description will be omitted.
本実施例においては、第１図の水加工装置１２と水噴射
ノズル装置１３を一体に形成した例を示している。This embodiment shows an example in which the water processing device 12 and the water jet nozzle device 13 shown in FIG. 1 are integrally formed.
すなわち、水加圧用ピストン２４の先端に水噴射ノズル
２７ａを形成し、水加圧用ピストン２４内には、スプリ
ング３０により付勢されるスプール２７を設けると共に
、水加圧用ピストン２４内に水加圧室１８と水噴射ノズ
ル間２７ａを連通させる水通路２６を形成している。水
加圧用ピストン２４とシリンダヘッド５の間には、Ｏリ
ング３３が配置されている。また、スプリング３０が配
設されている室３１は、通路３２、配管１５を経て水タ
ンク１０に接続されている。That is, a water injection nozzle 27a is formed at the tip of the water pressurizing piston 24, a spool 27 that is biased by a spring 30 is provided inside the water pressurizing piston 24, and a water injection nozzle 27a is formed in the water pressurizing piston 24. A water passage 26 is formed that communicates between the chamber 18 and the water jet nozzle 27a. An O-ring 33 is arranged between the water pressurizing piston 24 and the cylinder head 5. Further, the chamber 31 in which the spring 30 is disposed is connected to the water tank 10 via a passage 32 and piping 15.
［発明の効果コ
以上のように本発明によれば、シリンダ内圧力（温度）
が所定値以上のときのみシリンダ内に水を噴射し、必要
なときのみ燃焼温度を低下させてＮ Ｏｘを低減させる
ようにするため、エンジンの錆の発生およびエンジンオ
イルの希釈を防止することができる。[Effects of the Invention] As described above, according to the present invention, the cylinder internal pressure (temperature)
Water is injected into the cylinder only when is above a predetermined value, and the combustion temperature is lowered only when necessary to reduce NOx, which prevents engine rust and engine oil dilution. can.
第１図は本発明に係わる内燃機関の水噴射装置の１実施
例を示す断面図、第２図は燃焼室上部に配置される構成
部材の模式図、第３図は本発明の他の実施例を示す内燃
機関の一部断面図である。
３・・・シリンダ、５・・・シリンダヘッド、１３・・
・水噴射ノズル装置、１６・・・水供給路、１８・・・
水加圧室、 １９・・・ピストン室、２３・・・逆止弁
、２４・・・水加圧用ピストン。
第２図
出 願 人 株式会社 新燃焼システム研究所代理人
弁理士 白 井 博 樹（外７名）１′FIG. 1 is a cross-sectional view showing one embodiment of a water injection device for an internal combustion engine according to the present invention, FIG. 2 is a schematic diagram of constituent members arranged in the upper part of the combustion chamber, and FIG. 3 is another embodiment of the present invention. FIG. 1 is a partial cross-sectional view of an example internal combustion engine. 3...Cylinder, 5...Cylinder head, 13...
・Water injection nozzle device, 16... Water supply path, 18...
Water pressurization chamber, 19... Piston chamber, 23... Check valve, 24... Water pressurization piston. Figure 2 Applicant: New Combustion System Research Institute Co., Ltd. Representative Patent Attorney Hiroki Shirai (7 others) 1'
Claims (2)
室およびピストン室と、前記水加圧室の水供給側に設け
られる逆止弁と、前記水加圧室とピストン室内に摺動自
在に嵌合される水加圧用ピストンと、前記水加圧室内の
水をシリンダ内に噴射可能にする水噴射ノズル装置とを
有し、前記水加圧用ピストンは、前記水加圧室側端の受
圧面積よりもシリンダ側端の受圧面積が大になるように
形成し、シリンダ内圧力が所定値以上のときに水加圧用
ピストンを作動させることを特徴とする内燃機関の水噴
射装置。(1) A water supply path, a water pressurization chamber, and a piston chamber formed in the cylinder head, a check valve provided on the water supply side of the water pressurization chamber, and a slider installed in the water pressurization chamber and the piston chamber. It has a water pressurizing piston that is movably fitted and a water injection nozzle device that makes it possible to inject water in the water pressurizing chamber into the cylinder, and the water pressurizing piston is attached to the water pressurizing chamber side. A water injection device for an internal combustion engine, characterized in that the pressure receiving area at the cylinder side end is larger than the pressure receiving area at the end, and a water pressurizing piston is operated when the cylinder internal pressure is equal to or higher than a predetermined value.
けることを特徴とする請求項第１項記載の内燃機関の水
噴射装置。(2) The water injection device for an internal combustion engine according to claim 1, wherein the water injection nozzle device is provided within a piston for pressurizing water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2192440A JPH0686847B2 (en) | 1990-07-20 | 1990-07-20 | Water injection device for internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2192440A JPH0686847B2 (en) | 1990-07-20 | 1990-07-20 | Water injection device for internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0481556A true JPH0481556A (en) | 1992-03-16 |
| JPH0686847B2 JPH0686847B2 (en) | 1994-11-02 |
Family
ID=16291342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2192440A Expired - Lifetime JPH0686847B2 (en) | 1990-07-20 | 1990-07-20 | Water injection device for internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0686847B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2927955A3 (en) * | 2008-02-21 | 2009-08-28 | Renault Sas | Cylinder head for e.g. direct injection type internal combustion engine, of motor vehicle, has actuator provoking displacement of piston from injection position to filling position to automatically fill chamber via inlet orifice |
| WO2017129853A1 (en) * | 2016-01-29 | 2017-08-03 | Wärtsilä Finland Oy | Water injector |
| CN108204274A (en) * | 2016-12-19 | 2018-06-26 | 福特环球技术公司 | For adjusting the method and system of engine water injection |
| CN108884786A (en) * | 2016-03-29 | 2018-11-23 | 罗伯特·博世有限公司 | The water injection equipment of vehicle internal combustion engine |
| US10458365B2 (en) | 2016-01-12 | 2019-10-29 | Ford Global Technologies, Llc | Direct-injection supercharged internal combustion engine having water injection, and method for operating an internal combustion engine of this type |
-
1990
- 1990-07-20 JP JP2192440A patent/JPH0686847B2/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2927955A3 (en) * | 2008-02-21 | 2009-08-28 | Renault Sas | Cylinder head for e.g. direct injection type internal combustion engine, of motor vehicle, has actuator provoking displacement of piston from injection position to filling position to automatically fill chamber via inlet orifice |
| US10458365B2 (en) | 2016-01-12 | 2019-10-29 | Ford Global Technologies, Llc | Direct-injection supercharged internal combustion engine having water injection, and method for operating an internal combustion engine of this type |
| WO2017129853A1 (en) * | 2016-01-29 | 2017-08-03 | Wärtsilä Finland Oy | Water injector |
| CN108884786A (en) * | 2016-03-29 | 2018-11-23 | 罗伯特·博世有限公司 | The water injection equipment of vehicle internal combustion engine |
| CN108204274A (en) * | 2016-12-19 | 2018-06-26 | 福特环球技术公司 | For adjusting the method and system of engine water injection |
| CN108204274B (en) * | 2016-12-19 | 2021-09-10 | 福特环球技术公司 | Method and system for adjusting engine water injection |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0686847B2 (en) | 1994-11-02 |
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