JPS601371A - Fuel injection quantity regulator for internal-combustion engine - Google Patents
Fuel injection quantity regulator for internal-combustion engineInfo
- Publication number
- JPS601371A JPS601371A JP10929783A JP10929783A JPS601371A JP S601371 A JPS601371 A JP S601371A JP 10929783 A JP10929783 A JP 10929783A JP 10929783 A JP10929783 A JP 10929783A JP S601371 A JPS601371 A JP S601371A
- Authority
- JP
- Japan
- Prior art keywords
- fuel injection
- injection quantity
- combustion engine
- control rod
- injection amount
- 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
- 238000002347 injection Methods 0.000 title claims abstract description 48
- 239000007924 injection Substances 0.000 title claims abstract description 48
- 239000000446 fuel Substances 0.000 title claims abstract description 32
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 24
- 230000001276 controlling effect Effects 0.000 abstract 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract 1
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 239000003795 chemical substances by application Substances 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
- 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
- F02M59/20—Varying fuel delivery in quantity or timing
- F02M59/24—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke
- F02M59/26—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke caused by movements of pistons relative to their cylinders
- F02M59/28—Mechanisms therefor
-
- 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
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
- F02M59/48—Assembling; Disassembling; Replacing
-
- 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
-
- 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
- F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
- F02B61/04—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers
- F02B61/045—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers for marine engines
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は各気筒ごとにユニットインジェクタを装着した
多気筒の内燃機関の燃料噴射量調整装置に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fuel injection amount adjusting device for a multi-cylinder internal combustion engine in which a unit injector is installed for each cylinder.
各気筒ごとにユニットインジェクタを装着した多気筒の
内燃機関において、その機関の組付けの際に各ユニット
インジェクタの燃ＦＩ噴’Ｊｔ ｍのばらつきを小さく
シ、各気筒それぞれの噴射量を同じにしなければならな
い。In a multi-cylinder internal combustion engine in which a unit injector is installed for each cylinder, when assembling the engine, it is necessary to minimize the variation in the fuel FI injection of each unit injector and make the injection amount the same for each cylinder. Must be.
そこで、従来一般にそれぞれのユニットインジェクタの
各燃料噴射量制御用のレバーを、それぞれ燃料噴射ｆ４
１調量位置の状態で燃料噴射量調整用のコントロールロ
ーラドに、アジャスタを介してねじにより連結するとい
う調整方法を取っている。Therefore, in the past, generally speaking, each fuel injection amount control lever of each unit injector was set to the fuel injection amount f4.
An adjustment method is used in which the fuel injection valve is connected to a control roller for adjusting the fuel injection amount with a screw via an adjuster in the first metering position.
さらに一般には各ユニットインジェクタの上記レバーが
噴射量最大の位置でユニットインジェクタに設けられた
カラーに当接するように製作されており、この噴射量最
大の位置が噴射量調量位Ｉｌｌになっている。Furthermore, generally, the lever of each unit injector is manufactured so as to come into contact with a collar provided on the unit injector at the position where the injection amount is maximum, and this position where the injection amount is maximum is the injection amount adjustment position Ill. .
しかしながら、２気筒以上の多気筒の内燃機関において
、２個以」二のユニットインジェクタをアジャスターを
介してコントロールロッドにそれぞれ連結し、各ユニッ
トインジェクタの噴射量が同一になるよう調量する際に
は、コントロールロッドがその軸方向及び回転方向にふ
らつき、調整しにくく、調整にばらつきが発生するーと
いう問題がある。However, in a multi-cylinder internal combustion engine with two or more cylinders, when two or more unit injectors are connected to a control rod via an adjuster and the injection amount of each unit injector is adjusted to be the same, However, there is a problem in that the control rod wobbles in its axial and rotational directions, making it difficult to adjust and causing variations in adjustment.
このばらつきをなくすためにはコントロールロットを最
大噴射量位置で固定する必要がある。In order to eliminate this variation, it is necessary to fix the control rod at the maximum injection amount position.
又、一方この調整時コントロールロット固定用の治具は
、市場に於ける総ての事態に対処するには機関とは別の
特種なものであってならず、機関に使用されている部品
を組合せる事によってできれば最良である。しかし、こ
の治具はごく一般的な部品であっては上記の様な事故が
発生するので駄目であり、この部品を治具として使って
いる間はエンジンが回転（運転）できないというもので
なければならない。On the other hand, the jig for fixing the control rod during adjustment must be a special type separate from the engine in order to deal with all situations in the market, and must be made from parts used in the engine. It is best if possible by combining them. However, if this jig is a very common part, it will not work because accidents like the one described above will occur, and the engine must not be able to rotate (operate) while this part is used as a jig. Must be.
上記のごとくユニットインジェクタを最大燃料噴射量の
状態で調整した後、そのままの状態で、間違ってその内
燃機関を作動すると、最大噴射量で機関が回転し、機関
を破損するような事故につながる恐れがある。After adjusting the unit injector to the maximum fuel injection amount as described above, if you mistakenly operate the internal combustion engine in that state, the engine will rotate at the maximum injection amount, which may lead to an accident that may damage the engine. There is.
そこで本発明は、前記のごとき複数のユニットインジェ
クタを有する内燃機関の組付時のユニットインジェクタ
の燃料噴射量制御用のレバー（１）コントロールロット
に対する連結時の調整を容易に、かつ確実に行なうと共
に、その調整後にユニットインジェクタが最大燃料噴射
量の状態のまま誤って機関が作動されないようにするこ
とを目的としてなされたものである。SUMMARY OF THE INVENTION Therefore, the present invention facilitates and reliably adjusts the connection of the lever (1) for controlling the fuel injection amount of the unit injector to the control rod when assembling an internal combustion engine having a plurality of unit injectors as described above. This was done to prevent the engine from being accidentally operated while the unit injector remains at the maximum fuel injection amount after the adjustment.
即ち、本発明の燃料噴射量調整装置は、各気筒ごとにユ
ニットインジェクタを装着した多気筒の内燃機関の組付
時において、それら全てのユニットインジェクタの各燃
料噴射量制御用のレバーをそれぞれ燃料噴射量最大の状
態で連結可能なコントロールロットを燃料噴射量最大の
状態に治具にて固定するように成し、更にはその治具取
付けのままでは該内燃機関が作動不能な位舒に取イ」る
ことにより構成される。That is, the fuel injection amount adjusting device of the present invention, when assembling a multi-cylinder internal combustion engine in which a unit injector is installed in each cylinder, adjusts the levers for controlling the fuel injection amount of all the unit injectors to inject the fuel, respectively. The control rod, which can be connected in the state of maximum fuel injection amount, is fixed with a jig in the state of maximum fuel injection amount, and furthermore, it is installed in a position where the internal combustion engine cannot operate with the jig attached. ”.
以下図面を参照して本発明の一実施例を説明するが、第
１図は本発明の一実施例における船外機を取り付けた小
形船舶の船尾要部の概略側面図、第２図は、コントロー
ルロットと複数のユニットインジェクタとの連結部要部
を示１−一部断面の背面図である。An embodiment of the present invention will be described below with reference to the drawings. Fig. 1 is a schematic side view of the main part of the stern of a small boat equipped with an outboard motor according to an embodiment of the present invention, and Fig. 2 shows FIG. 1 is a partial cross-sectional rear view of the main part of the connection between the control rod and the plurality of unit injectors.
まず、第１図において小形船舶の船尾１に装着された船
外機は、内燃機関２及び船外機本体６からなり、この内
燃機関２によって船外機本体６内に垂直に設けられ、か
つクランク軸６に連結された推進軸１０を介して、その
下部に設けられたプロペラスクリュウ４を回転させ、こ
の小形船舶を矢印Ａの進行方向に推進させると共に、こ
の船外機の前方に突出した操舵ハンドル５を船上にて左
右に動かすことにより操舵するようになっている。First, in FIG. 1, the outboard motor attached to the stern 1 of a small boat consists of an internal combustion engine 2 and an outboard motor main body 6. A propeller screw 4 provided at the bottom of the propeller screw 4 is rotated through a propulsion shaft 10 connected to the crankshaft 6 to propel the small boat in the direction of arrow A, and the outboard motor projects forward. The ship is steered by moving the steering handle 5 left and right on the ship.
この内燃機関２はクランク軸６が垂直軸になっており、
従ってピストン７は水平に滑動し、そのピストン７の頂
部側の燃焼室に対向してユニットインジェクタ８がシリ
ンダヘッド９に装着され、このユニットインジェクタ８
がらの燃料噴射による燃焼によりピストン７を水平方向
ニ往復動させ、垂直方向に設けられたクランク軸６を回
転させるようになっている。In this internal combustion engine 2, the crankshaft 6 is a vertical axis,
Therefore, the piston 7 slides horizontally, and a unit injector 8 is mounted on the cylinder head 9 facing the combustion chamber on the top side of the piston 7.
The combustion caused by the fuel injection causes the piston 7 to reciprocate twice in the horizontal direction, thereby rotating the crankshaft 6 provided in the vertical direction.
また、第２図に示すように２気筒の内燃機関２の各ユニ
ットインジェクタ８には、図示されていないプランジャ
に固着された燃料噴射量制御用のレバー４５が設けられ
、これらのレバー４５はクランク軸６と平行に上下に移
動するコントロールロット１１に対して、レバー４５の
フォークを介して連結され、矢印Ｅの燃料増量方向のご
とく操作されるようになっている。Further, as shown in FIG. 2, each unit injector 8 of the two-cylinder internal combustion engine 2 is provided with a lever 45 for fuel injection amount control fixed to a plunger (not shown). It is connected to the control rod 11, which moves up and down parallel to the shaft 6, via the fork of a lever 45, and is operated in the direction of fuel increase as indicated by arrow E.
そこで本発明では、第２図に示すごとく、２気ｆｔｐの
内燃機関２の各ユニットインジェクタ８をこの内燃機関
２に組付ける時に、各ユニットインジェクタ８の燃料噴
射量制御用の各レバー４５を燃料噴射量最大の状態でフ
ントロールロッド１１に対して止めねじ４７により連結
しているが、これらの止めねじ４７は第２図の４８で示
す長穴によりコントロールロッド１１の軸方向に調節可
能に連結されるようになっている。Accordingly, in the present invention, as shown in FIG. When the injection amount is at its maximum, it is connected to the control rod 11 by set screws 47, and these set screws 47 are connected so as to be adjustable in the axial direction of the control rod 11 through elongated holes shown at 48 in FIG. It is now possible to do so.
その場合、コントロールロッド１１がその軸方向または
回転方向にふらつくのを防止するための治具として、コ
ントロールロッド１１を燃＋［耐量最大の状態で取付台
４６に固定する固定ねじ４９を設けている。In that case, as a jig to prevent the control rod 11 from wobbling in its axial or rotational direction, a fixing screw 49 is provided to fix the control rod 11 to the mounting base 46 in a state with maximum resistance to combustion. .
機関運転時はピン１００に直結した図示されていないレ
バーが、同じく図示していないガバナーに連動するよう
になっている。そしてユニットインジェクタ８自身は、
夫々しｙ＜ −４５カ、：Ｌ ＝ ７トインジエクタ８
に当ると同一噴射量になるように予め調量しである。コ
ントロールロッド１１がアイドルスプリング取付台４６
に当る位置で中＋、レバー４５がユニットインジェクタ
８に当ると同一噴射量になるように予しめ調量しである
位置にくるようにしてユニットインジェクタ８を止めね
じ４７で固定する。この場合コントロールロッド１１の
位置が少しでも動くと調整はうまくできない。そこでコ
ントロールロッド１１は治具４９で摺動、回転方向に固
定するとよい。治具４９はこれがなければエンジンがま
わらない（例えば燃料のエア抜きねじ等）ものを使用す
れば事故はない。When the engine is in operation, a lever (not shown) directly connected to the pin 100 is linked to a governor (also not shown). And the unit injector 8 itself is
Each y < -45, : L = 7 injector 8
The amount of injection is adjusted in advance so that the amount of injection is the same when the injection occurs. The control rod 11 is the idle spring mounting base 46
When the lever 45 touches the unit injector 8, the amount of injection is adjusted in advance so that the same injection amount is obtained, and the unit injector 8 is fixed with the setscrew 47 so that it is at a certain position. In this case, if the position of the control rod 11 moves even slightly, the adjustment cannot be made properly. Therefore, it is preferable to fix the control rod 11 in the sliding and rotational directions with a jig 49. If the jig 49 is one without which the engine will not run (for example, a fuel air bleed screw), there will be no accident.
なお、上記のごときコントロールロッド１１を燃料噴射
量最大の状態に固定する治具としては、上記実施例の固
定ねじ４９及びその固定ねじ４９の位置に限定されるも
のではなく、その固定用の治具が取付けられたままでは
その内燃機関２が作動不能なものであれば、どのような
治具をどのような位置に設けても有効である。Note that the jig for fixing the control rod 11 at the maximum fuel injection amount as described above is not limited to the fixing screw 49 and the position of the fixing screw 49 in the above embodiment; Any type of jig and any position will be effective as long as the internal combustion engine 2 cannot operate with the jig attached.
従って、本発明の燃料噴射量調量装置を複数のユニット
インジェクタを有する内燃機関に適用すれば、そのユニ
ットインジェクタの燃料噴ｉｔ 量制御用のレバーのコ
ントロールロッドニ対する連結時の調整を容易に、かつ
確実に行ないうると共に、その調整後にユニットインジ
ェクタが燃料の最大噴射量の状態のまま誤って機関が作
動されることがないという利点があり、その内燃機関の
安全保護装置として有効である。Therefore, if the fuel injection amount metering device of the present invention is applied to an internal combustion engine having a plurality of unit injectors, it is possible to easily adjust the connection of the lever for controlling the fuel injection amount of the unit injector to the control rod. This adjustment can be carried out reliably and has the advantage that the engine will not be operated erroneously with the unit injector in the state of the maximum injection amount of fuel after the adjustment, and is effective as a safety protection device for the internal combustion engine.
第１図は本発明の一実施例における船外機を取り付けた
小形船舶の船尾要部の概略側面図、第２図はコントロー
ルロッドと複数のユニットインジェクタとの連結部要部
を示す一部断面の背面図である。
２・・・内燃ＩＱｌ、８・・・ユニットインジェクタ、
１１・・・コントロールロッド、４６・・・アイドルス
プリング取付台、４５・・・レバー、４７・・・止めね
じ、４９・・・固定ねじ、５０・・・ねじ穴。
代理人 弁理士 小 川 信 −
弁理士 野 口 賢 照
弁理士 斎下和彦Fig. 1 is a schematic side view of the main part of the stern of a small boat equipped with an outboard motor according to an embodiment of the present invention, and Fig. 2 is a partial cross-section showing the main part of the connection between the control rod and a plurality of unit injectors. FIG. 2... Internal combustion IQl, 8... Unit injector,
DESCRIPTION OF SYMBOLS 11... Control rod, 46... Idle spring mounting base, 45... Lever, 47... Set screw, 49... Fixing screw, 50... Screw hole. Agent: Patent Attorney Makoto Ogawa − Patent Attorney: Ken Noguchi Patent Attorney: Kazuhiko Saishita
Claims (1)
筒の内燃機関の組付時において、それら全てのユニット
インジェクタの各燃料噴射母制御用のレバーをそれぞれ
燃料噴射量位置の状態で連結ｉＪ能なコントロールロッ
ドを燃料噴射量調量位置の状態に治具にて固定する様に
したことを特徴とする内燃機関の燃イＳＩ噴射屋調整装
置。 ２、前記治具をその治具取付のままでは該内燃機関が作
動不能な位置に取付けたことを特徴とする特許請求の範
囲第１項記載の内燃機関の燃料噴射量調整装置。[Claims] 1. When assembling a multi-cylinder internal combustion engine in which a unit injector is installed in each cylinder, the fuel injection control levers of all the unit injectors are set to the respective fuel injection amount positions. 1. A combustion SI injection adjustment device for an internal combustion engine, characterized in that a control rod capable of being connected at a fuel injection amount is fixed with a jig at a fuel injection amount metering position. 2. The fuel injection amount adjusting device for an internal combustion engine according to claim 1, wherein the jig is installed in a position where the internal combustion engine cannot operate if the jig is attached.
Priority Applications (12)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10929783A JPS601371A (en) | 1983-06-20 | 1983-06-20 | Fuel injection quantity regulator for internal-combustion engine |
| SE8306465A SE455008B (en) | 1983-05-16 | 1983-11-23 | FOR FUEL QUANTITY CONTROL DEVICE FOR DIESEL ENGINE WITH VERTICAL VEHICLE AXLE |
| GB08331782A GB2140098B (en) | 1983-05-16 | 1983-11-29 | Fuel injection pump quantity control device |
| FR8319194A FR2546235B1 (en) | 1983-05-16 | 1983-12-01 | DEVICE FOR ADJUSTING THE QUANTITY OF INJECTED FUEL, FOR A DIESEL ENGINE WITH VERTICAL CRANKSHAFT |
| US06/557,673 US4557235A (en) | 1983-05-16 | 1983-12-02 | Fuel injection quantity controlling device for diesel engine with vertical crankshaft |
| IT8324112A IT1194513B (en) | 1983-05-16 | 1983-12-12 | INJECTED FUEL QUANTITY CONTROL DEVICE FOR DIESEL ENGINE WITH VERTICAL CRANKSHAFT |
| AU23032/84A AU569861B2 (en) | 1983-05-16 | 1984-01-03 | Diesel engine fuel injection control device |
| DE19843403175 DE3403175A1 (en) | 1983-05-16 | 1984-01-31 | DEVICE FOR CONTROLLING A FUEL INJECTION AMOUNT FOR DIESEL ENGINES WITH VERTICAL CRANKSHAFT |
| KR1019840000524A KR920001750B1 (en) | 1983-05-16 | 1984-02-04 | Fuel injection quantity controlling device for diesel engine with vertical crankshaft |
| IN910/MAS/84A IN162972B (en) | 1983-05-16 | 1984-11-23 | |
| SG236/88A SG23688G (en) | 1983-05-16 | 1988-04-09 | A diesel engine with vertical crankshaft |
| HK703/88A HK70388A (en) | 1983-05-16 | 1988-09-08 | A diesel engine with vertical crankshaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10929783A JPS601371A (en) | 1983-06-20 | 1983-06-20 | Fuel injection quantity regulator for internal-combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS601371A true JPS601371A (en) | 1985-01-07 |
| JPH029179B2 JPH029179B2 (en) | 1990-02-28 |
Family
ID=14506604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10929783A Granted JPS601371A (en) | 1983-05-16 | 1983-06-20 | Fuel injection quantity regulator for internal-combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS601371A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0730896U (en) * | 1992-04-14 | 1995-06-13 | タイコ−株式会社 | Floor mat |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5545069U (en) * | 1978-09-18 | 1980-03-24 | ||
| JPS56150862U (en) * | 1980-04-12 | 1981-11-12 |
-
1983
- 1983-06-20 JP JP10929783A patent/JPS601371A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5545069U (en) * | 1978-09-18 | 1980-03-24 | ||
| JPS56150862U (en) * | 1980-04-12 | 1981-11-12 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH029179B2 (en) | 1990-02-28 |
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