JPS60173325A - Engine mechanical governor - Google Patents

Engine mechanical governor

Info

Publication number
JPS60173325A
JPS60173325A JP2906684A JP2906684A JPS60173325A JP S60173325 A JPS60173325 A JP S60173325A JP 2906684 A JP2906684 A JP 2906684A JP 2906684 A JP2906684 A JP 2906684A JP S60173325 A JPS60173325 A JP S60173325A
Authority
JP
Japan
Prior art keywords
lever
governor
governor lever
stop
spring
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.)
Pending
Application number
JP2906684A
Other languages
Japanese (ja)
Inventor
Shigeru Higuchi
茂 樋口
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yanmar Co Ltd
Original Assignee
Yanmar Diesel Engine Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yanmar Diesel Engine Co Ltd filed Critical Yanmar Diesel Engine Co Ltd
Priority to JP2906684A priority Critical patent/JPS60173325A/en
Publication of JPS60173325A publication Critical patent/JPS60173325A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02DCONTROLLING COMBUSTION ENGINES
    • F02D1/00Controlling fuel-injection pumps, e.g. of high pressure injection type
    • F02D1/02Controlling fuel-injection pumps, e.g. of high pressure injection type not restricted to adjustment of injection timing, e.g. varying amount of fuel delivered
    • F02D1/08Transmission of control impulse to pump control, e.g. with power drive or power assistance
    • F02D1/10Transmission of control impulse to pump control, e.g. with power drive or power assistance mechanical

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • High-Pressure Fuel Injection Pump Control (AREA)

Abstract

PURPOSE:To aim at reducing the control force of an engine upon engine stop, by forming the governor lever from a plurality of pieces which are coupled together by means of a resilient member, and by making the thus formed governor lever abut against a stopper lever on the side near to a control rack and remote from the resilient member. CONSTITUTION:A governor lever is formed of a main governor lever 4 and an auxiliary governor lever 20 with a bifurcated section 6 at the front end of the main governor lever 4 holding therein a pin 22 on a control rack 8. Further, the base of the main governor lever 4 is loosely fitted into the boss section of the auxiliary governor lever 20. Meanwhile the notch section of the auxiliary governor lever 20 which is fitted onto a governor shaft 15 is arranged such that it may be made to abut against and separated from one corner 23 of the main governor 4, and both levers are united together with a spring. A stop lever 1 is made to abut against the governor lever on the control rack 8 side. With this arrangement, the stop lever 1 may be rotated irrespective of a spring, and therefore, the control force of the stopper lever may be reduced.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、ディーゼル機関に付設されている調速装置、
殊に発電機関用ディーゼル機関に適したメカニカルガバ
ナに関する。
[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a speed governor attached to a diesel engine,
In particular, the present invention relates to a mechanical governor suitable for diesel engines for power generation engines.

一般に、ディーゼル機関は、その使用状態により、負荷
に関係なく一定回転数を持続する等の条件が要求され、
そのため、調速装置を付勢している。かかる調速装置の
一つにメカニカルガバナがあるが、メカニカルガバナは
、回転速度変化によるガバナウェイト遠心力とガバナス
プリングの付勢力との平衡位置の変化をコントロールラ
ックに伝え、プランジャや有効ストロークが回転速度の
上昇とともに減少するように変化させるものである。
In general, diesel engines are required to maintain a constant rotation speed regardless of the load depending on their operating conditions.
Therefore, the speed governor is energized. One such speed governing device is a mechanical governor, which transmits changes in the equilibrium position between the centrifugal force of the governor weight and the biasing force of the governor spring due to changes in rotational speed to the control rack, causing the plunger and effective stroke to rotate. It changes so that it decreases as the speed increases.

かかるメカニカルガバナの一つに、ガバナレバーと噴射
制限レバーとを併設した、いわゆる2レバ一方式のもの
が知られていて(特公昭44−154841号公報参照
)、これは、機関始動時に燃料噴射量増量等を簡単な機
構をもって容易に確保しようとするものである。
One such mechanical governor is a so-called two-lever one-type one that is equipped with a governor lever and an injection limiting lever (see Japanese Patent Publication No. 154841/1984), which controls the amount of fuel injected when the engine is started. The aim is to easily increase the amount by using a simple mechanism.

(従来技術) かかる2レバ一方式のメカニカルガバナにおいて、ガバ
ナウェイトをクランク軸に装着したタイプのものが知ら
れている。すなわち、第2図示は本発明の実施例を示す
ものであるが、同図を借り−ζ説明すれば、かかるメカ
ニカルガバナにおいて、機関を停止させようとすれば、
ストップレバー1を回動するが、かかる場合、ストップ
レバーシャフト2の端部に設けたカム3がガバナレバー
4の側部に突設した当接部5を押動し、該ガバナレバー
4を回動せしめて、該ガバナレバー4の先端のフォーク
部6でもつコントロールラック8を停止位置(S)に変
位させる。
(Prior Art) Among such two-lever one-type mechanical governors, a type in which a governor weight is attached to a crankshaft is known. That is, the second illustration shows an embodiment of the present invention, but to explain with reference to the same figure, if an attempt is made to stop the engine in such a mechanical governor,
The stop lever 1 is rotated, but in this case, the cam 3 provided at the end of the stop lever shaft 2 pushes the contact portion 5 protruding from the side of the governor lever 4, causing the governor lever 4 to rotate. Then, the control rack 8 held by the fork portion 6 at the tip of the governor lever 4 is moved to the stop position (S).

ここにおいて、従来のガバナレバー4では、かかる停止
方向に回動させるときは、ガバナスプリング9が係止・
付勢されている噴射制限レバー10を随伴させる構造に
なっている。すなわち、第4図はかかる従来例の要部斜
視図で、ガバナレバー4゛の基部が直接ガバナシャフト
15に直接固定されている構造であったため、ストップ
レバー1の回動・操作にはガバナスプリング・9の付勢
に抗しながら操作させる必要があった。そのため、例え
ば、ストップレバー1の回動・操作をストップモータま
たはソレノイド等電気的手段でもって行うとすれば、前
記のごとき過大な操作力に加え、電気的手段に通電する
時間が30秒から3分程度と非常に短いことにより、大
型化しそのためデザイン上でも好ましくない。
Here, in the conventional governor lever 4, when rotating in such a stopping direction, the governor spring 9 is locked and
It has a structure in which the injection restriction lever 10 is energized. That is, FIG. 4 is a perspective view of the main part of such a conventional example. Since the base of the governor lever 4' was directly fixed to the governor shaft 15, the rotation and operation of the stop lever 1 was performed using a governor spring. It was necessary to operate it while resisting the bias of 9. Therefore, for example, if the stop lever 1 is rotated and operated using an electric means such as a stop motor or a solenoid, in addition to the excessive operating force described above, the time required to energize the electric means ranges from 30 seconds to 30 seconds. Since it is very short, about a minute, it increases in size and is therefore undesirable in terms of design.

〔課題〕〔assignment〕

そこで本発明は、かかる従来の2レバ一式メカニカルガ
バナにおける不具合を解消しようとするものである。
SUMMARY OF THE INVENTION Therefore, the present invention aims to solve the problems in the conventional two-lever mechanical governor.

〔発明の構成〕[Structure of the invention]

本発明の構成を添付図面に示す実施例にもとづき説明す
る。
The configuration of the present invention will be explained based on embodiments shown in the accompanying drawings.

第1図は本発明の実施例の正面図、第2図は第1図にお
けるA−A矢視図、第3図は同実施例の分解斜視図を示
す。
FIG. 1 is a front view of an embodiment of the present invention, FIG. 2 is a view taken along the line A--A in FIG. 1, and FIG. 3 is an exploded perspective view of the same embodiment.

本実施例のメカニカルガバナを装着したディーゼル機関
は中・小形機関であって、産業用特装車に搭載し、負荷
が急増しても、機関停止には至らしめないようトルクス
プリング11を付勢しである。
The diesel engine equipped with the mechanical governor of this embodiment is a medium-sized or small-sized engine, and is installed in a special industrial vehicle, and the torque spring 11 is energized so that the engine does not stop even if the load suddenly increases. be.

さて、図中12はカム軸でボッシュPFR型燃量噴射ポ
ンプ7のタペットローラ13を突上げている。該カム軸
12を駆動するクランク軸の回転速度によって摺動・変
位するガバナスリーブをクランク軸端(いずれせ図示せ
ず)に設け、ガバナスリーブによって摺動させる第1ガ
バナレバー14をガバナシャフト15に固着しである。
Now, in the figure, 12 is a camshaft that pushes up the tappet roller 13 of the Bosch PFR fuel injection pump 7. A governor sleeve that slides and displaces depending on the rotational speed of the crankshaft that drives the camshaft 12 is provided at the end of the crankshaft (not shown in any case), and a first governor lever 14 that is slid by the governor sleeve is fixed to the governor shaft 15. It is.

該ガバナシャフト15はニードルベアリング16.1.
6を介して支持部材17で軽快に回動自在に支持されて
いる。該支持部材17はガバナハウジング18に固定さ
れ、したがって、機関回転速度の変動によって、第1ガ
バナレバー14がガバナシャフト15を中心に回動する
に伴い、該ガバナシャフト15が若干回動するようにな
っている。
The governor shaft 15 has needle bearings 16.1.
6, it is supported by a support member 17 so as to be freely rotatable. The support member 17 is fixed to the governor housing 18, so that as the first governor lever 14 rotates around the governor shaft 15 due to fluctuations in engine speed, the governor shaft 15 will rotate slightly. ing.

次に、該ガバナシャフト15には、スタートスフリング
19、ガバナレバー4、噴射制限レバー10、および補
助ガバナレバー2oが装着されている。
Next, a starter ring 19, a governor lever 4, an injection restriction lever 10, and an auxiliary governor lever 2o are attached to the governor shaft 15.

すなわち、スタートスフリング19の一端はガハナシャ
フl−1,5に固定され、他端は前記支持部材17に固
定され、しかも、初期弾力を加えて装着しているので、
ガバナシャフト15を常に回動させようとしている。そ
の回動方向は、後述のように、ガバナレバー4を燃料増
大の方向に回動させる方向とし、そのため、機関始動時
に、該スプリング19の付勢によりガバナレバー4をガ
バナスプリング9に無関係に回動させ、燃料を最大噴射
量の位置(第2図中の)mに位置させる。
That is, one end of the starters ring 19 is fixed to the Gahana shaffles 1-1 and 5, and the other end is fixed to the support member 17, and since it is attached with initial elasticity,
The governor shaft 15 is constantly being rotated. As will be described later, the direction of rotation is the direction in which the governor lever 4 is rotated in the direction of fuel increase. Therefore, when the engine is started, the governor lever 4 is rotated independently of the governor spring 9 due to the bias of the spring 19. , the fuel is positioned at the maximum injection amount position m (in FIG. 2).

ガバナレバー4は、その先端にフォーク部6を有し、該
フォーク部6でもって、燃料噴射ポンプ7のコントロー
ルラック8に突設したビン22を挟持している。また、
その基部は補助ガバナレバー20のボス部21に遊嵌し
ている。加えて、中間側部にストップレバー1と一体と
なったカム3が当接する当接片5を延設している。ガバ
ナレバー4と補助ガバナレバー2oとは、第3図に示す
ように、ガバナレバー4の角部23とネn1助ガバナレ
バー20の切欠部24とが当接・離反可能となっており
、かつ、両者を付勢力の低い結合スプリング25で一体
化している。つまり、ガハナレハ−を(4)とく20)
との複数片とし、結合スプリング25で結合しているも
のである。
The governor lever 4 has a fork portion 6 at its tip, and the fork portion 6 holds a bottle 22 projecting from a control rack 8 of a fuel injection pump 7. Also,
Its base portion is loosely fitted into the boss portion 21 of the auxiliary governor lever 20. In addition, an abutting piece 5 is provided extending from the intermediate side portion, with which the cam 3 integrated with the stop lever 1 abuts. As shown in FIG. 3, the governor lever 4 and the auxiliary governor lever 2o are such that the corner 23 of the governor lever 4 and the notch 24 of the auxiliary governor lever 20 can come into contact with and separate from each other, and the two can be attached. They are integrated by a coupling spring 25 with low force. In other words, take Gahanareha (4)20)
It is made up of multiple pieces and is connected by a connecting spring 25.

噴射制限レバー10はヘルクランク状になっており (
第2図および第3図参照)、その基部はガバナシャフト
15にカラー26を介して遊嵌している。ベルクランク
の一端はガバナスプリング9の上端が係止され、他端は
トルクスプリング11に当接する当接片27を延設して
いる。該ガバナスプリング9の上端はレギュレータレバ
ー28に係止され、該レギュレータレバー28はガバナ
バウシング18外に設けられたレギュレータハンドル2
9により操作され、ガバナスプリング9の強弱を調節す
る。
The injection limiting lever 10 has a hell crank shape (
(see FIGS. 2 and 3), its base is loosely fitted onto the governor shaft 15 via a collar 26. The upper end of the governor spring 9 is locked at one end of the bell crank, and an abutment piece 27 that abuts the torque spring 11 extends from the other end. The upper end of the governor spring 9 is engaged with a regulator lever 28, and the regulator lever 28 is connected to a regulator handle 2 provided outside the governor bousing 18.
9 to adjust the strength of the governor spring 9.

補助ガバナレバー20はガバナシャフト15に固着し′
ζあり、その先端に当接ビン29を固定してあり、該当
接ピン29は前記噴射制限レバー10の腹部に当接する
ようにしである。
The auxiliary governor lever 20 is fixed to the governor shaft 15.
ζ, and a contact pin 29 is fixed to the tip thereof, and the corresponding contact pin 29 is designed to contact the abdomen of the injection restriction lever 10.

なお、30は回転制限ボルト、Mはストップモータを示
1゜ 本実施例のガバナ作用は次のように行われる。
Note that 30 is a rotation limiting bolt and M is a stop motor.The governor action of this embodiment is performed as follows.

機関始動;レギュレータハンドル2Bを始動にし、燃料
の吐出量をおおくするが、クランク軸の回転は低速であ
るため、ガバナスリーブの力は極小となっていることか
ら、スタートスプリング19で第1ガバナレバー14は
大きく回動しく第3図中旧gh方向)補助ガバナレバー
20を介してガバナレバー4を最大噴射量になるよう回
動する。
Starting the engine: Start the regulator handle 2B to increase the amount of fuel discharged, but since the crankshaft rotates at a low speed, the force on the governor sleeve is minimal, so the start spring 19 starts the first governor lever 14. The governor lever 4 is rotated via the auxiliary governor lever 20 so as to reach the maximum injection amount (in the old GH direction in FIG. 3).

最高回転;レギュレータハンドル28を最大に引張れば
、ガバナスプリング9の付勢力が大きくなり、噴射制限
レバー10が補助ガバナレバー20の当接ピン29を押
動し、該レバー20の切欠部24でもって、ガバナレバ
ー4の角部23を接当して、ガバナレバー4をm方向に
回動させる。その結果、ガバナレバー14およびガバナ
レバー4に対し、ガバナスプリング9の付勢力とは反対
の力を与え、安定する。
Maximum rotation: When the regulator handle 28 is pulled to the maximum, the biasing force of the governor spring 9 increases, the injection limiting lever 10 pushes the abutting pin 29 of the auxiliary governor lever 20, and the notch 24 of the lever 20 , the corner portion 23 of the governor lever 4 is brought into contact with the governor lever 4, and the governor lever 4 is rotated in the m direction. As a result, a force opposite to the biasing force of the governor spring 9 is applied to the governor lever 14 and the governor lever 4, thereby stabilizing the governor lever 14 and the governor lever 4.

過負荷;本実施例を建設機械に使用すれば、機関定格時
に、負荷が急増して、回転数が低下する。
Overload: If this embodiment is used in a construction machine, when the engine is rated, the load will increase rapidly and the rotational speed will decrease.

この際、ガバナスプリング9は最大となっているため、
噴射制限レバー10の当接片27でi〜ルクスプリング
11を押圧し、その結果、ガバナレバー4を吐出量大の
m方向に回動させ、トルクを高めて、機関停止に至らし
めない。
At this time, since the governor spring 9 is at its maximum,
The abutting piece 27 of the injection limiting lever 10 presses the i~lux spring 11, and as a result, the governor lever 4 is rotated in the m direction where the discharge amount is large, increasing the torque and preventing the engine from stopping.

機関停止;機関を停止する場合は、レギュレータハンド
ル2日をアイドリング位置(したがって、アイドリング
時に機関を停止させることはない)にし、ストップレバ
ー1をストップモータMで操作すれば(第3図で5to
p方向)、カム3により、結合スプリング25の付勢力
に抗して当接部5を押動し、ガバナレバー4をS方向に
回動し、機関を停止させる。また、レギュレータハンド
ル28を最高回転の位置にしたまま、つまり、緊急時、
ガバナスプリング9の付勢力が最大であっても、該付勢
力に関係な(、ストップレバー1を操作できる。
Engine stop: To stop the engine, set the regulator handle 2 to the idling position (therefore, the engine will not stop when idling), and operate the stop lever 1 with the stop motor M (5 to
P direction), the cam 3 pushes the contact portion 5 against the urging force of the coupling spring 25, rotates the governor lever 4 in the S direction, and stops the engine. In addition, if the regulator handle 28 is left at the maximum rotation position, that is, in an emergency,
Even if the biasing force of the governor spring 9 is maximum, the stop lever 1 can be operated regardless of the biasing force.

以上要するに本発明は、ガバナシャフトにガバナレバー
と噴射制限レバーとを支持し、該ガバナレバーの回転に
よりコントロールラックを移動せシメ、該噴射制限レバ
ーに、レギュレータレバー・を付設したガバナスプリン
グを係止・付勢せしめるとともに、該ガバナレバーにス
トップレバーを当接することにより機関停止を行わしめ
るメカニカルガバナにおいて、該ガバナレバーを、弾性
体により結合した複数片で構成し、前記噴射制限レバー
を該弾性体の該弾力の影響のない個所に当接するととも
に、前記ストップレバーの当接を該弾性体よりコントロ
ールラック側とした機関用メカニカルガバナであるから
次の効果を奏する。
In summary, the present invention supports a governor lever and an injection limiting lever on a governor shaft, moves a control rack by rotation of the governor lever, and locks and attaches a governor spring attached to a regulator lever to the injection limiting lever. In a mechanical governor that stops the engine by pressing a stop lever against the governor lever, the governor lever is composed of a plurality of pieces connected by an elastic body, and the injection limiting lever is controlled by the elastic force of the elastic body. This is a mechanical governor for an engine that abuts on an unaffected location and that the stop lever abuts on the side of the control rack relative to the elastic body, so that the following effects are achieved.

〔発明の効果〕〔Effect of the invention〕

■機関停止時、ガバナスプリングの付勢力とは無関係に
ガバナレバーを、ストップレバーでもって、弾性体の弾
力のみに抗して、回動することができ、その操作力が軽
減できる。
■When the engine is stopped, the governor lever can be rotated by the stop lever independently of the urging force of the governor spring, resisting only the elasticity of the elastic body, and the operating force can be reduced.

■レギュレータレバーではなく、ストップレバーでもっ
て機関停止ができるので、緊急停止が得られる。
■Since the engine can be stopped using the stop lever instead of the regulator lever, an emergency stop can be obtained.

■ストップレバーの操作力が軽減されるので、電気的手
段を採用しても、該手段が小形・小容景化することがで
きる。
(2) Since the operating force of the stop lever is reduced, even if electric means are used, the means can be made smaller and more compact.

■ガバナスプリングの外に、スクートスプリングが係止
できる構造であるので、機関始動時に、増量でき、始動
性能を高めることができるのみならず、付設した弾性体
は該スタートスプリングの付勢力には何ら影響を与えな
い。
■Since the structure allows the scoot spring to be locked outside of the governor spring, it can be increased when starting the engine, improving starting performance, and the attached elastic body has no effect on the biasing force of the start spring. No impact.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の実施例の正面図、第2図は第1図にお
けるA−A矢視図、第3図は同実施例の分解斜視図、第
4図は従来例の要部斜視図1・・・ストップレバー、4
・・・ガバナレバー、8・・・コントロールラック、9
・・・ガバナスプリング、lO・・・噴射制限レバー、
15・・・ガバナシャフト、20・・・補助ガバナレバ
ー、25・・・結合スプリング、28・・・レギュレー
タレバー 代理人弁理士 岡 部 吉 彦
Fig. 1 is a front view of an embodiment of the present invention, Fig. 2 is a view taken along the line A-A in Fig. 1, Fig. 3 is an exploded perspective view of the embodiment, and Fig. 4 is a perspective view of main parts of a conventional example. Figure 1...stop lever, 4
...Governor lever, 8...Control rack, 9
... Governor spring, lO ... Injection limit lever,
15...Governor shaft, 20...Auxiliary governor lever, 25...Coupling spring, 28...Regulator lever Yoshihiko Okabe, patent attorney

Claims (1)

【特許請求の範囲】[Claims] ガバナシャフトでガバナレバーと噴射制限レバーとを支
持し、該ガバナレバーの回転によりコントロールラック
を移動せしめ、該噴射制限レバーに、レギュレークレバ
ーを付設したガバナスプリングを係止・付勢せしめると
ともに、該ガバナレバーにストップレバーを当接するこ
とにより機関停止を行わしめるメカニカルガバナにおい
て、該ガバナレバーを、弾性体により結合した複数片で
構成し、前記噴射制限レバーを該弾性体の該弾力の影響
のない個所に当接するとともに、前記ストップレバーの
当接を該弾性体よりコントロールラック側とした内燃機
関用メカニカルガバナ
A governor shaft supports a governor lever and an injection restriction lever, and rotation of the governor lever moves a control rack, locks and biases a governor spring with a regulator lever attached to the injection restriction lever, and causes a stop to the governor lever. In a mechanical governor that stops the engine by abutting a lever, the governor lever is composed of a plurality of pieces connected by an elastic body, and the injection limiting lever is abutted on a part of the elastic body that is not affected by the elasticity. , a mechanical governor for an internal combustion engine in which the stop lever comes into contact closer to the control rack than the elastic body;
JP2906684A 1984-02-18 1984-02-18 Engine mechanical governor Pending JPS60173325A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2906684A JPS60173325A (en) 1984-02-18 1984-02-18 Engine mechanical governor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2906684A JPS60173325A (en) 1984-02-18 1984-02-18 Engine mechanical governor

Publications (1)

Publication Number Publication Date
JPS60173325A true JPS60173325A (en) 1985-09-06

Family

ID=12265987

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2906684A Pending JPS60173325A (en) 1984-02-18 1984-02-18 Engine mechanical governor

Country Status (1)

Country Link
JP (1) JPS60173325A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5351336A (en) * 1976-10-21 1978-05-10 Nippon Denso Co Ltd Centrifugal force type speed governor for internal combustion engine
JPS5885328A (en) * 1981-11-13 1983-05-21 Yanmar Diesel Engine Co Ltd Injection quantity controller of fuel pump in internal- combustion engine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5351336A (en) * 1976-10-21 1978-05-10 Nippon Denso Co Ltd Centrifugal force type speed governor for internal combustion engine
JPS5885328A (en) * 1981-11-13 1983-05-21 Yanmar Diesel Engine Co Ltd Injection quantity controller of fuel pump in internal- combustion engine

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