JPH039034A - Fuel injection timing control device for fuel injection pump - Google Patents
Fuel injection timing control device for fuel injection pumpInfo
- Publication number
- JPH039034A JPH039034A JP14162789A JP14162789A JPH039034A JP H039034 A JPH039034 A JP H039034A JP 14162789 A JP14162789 A JP 14162789A JP 14162789 A JP14162789 A JP 14162789A JP H039034 A JPH039034 A JP H039034A
- Authority
- JP
- Japan
- Prior art keywords
- lever
- fuel injection
- injection timing
- speed
- rotation speed
- 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 69
- 239000007924 injection Substances 0.000 title claims abstract description 69
- 239000000446 fuel Substances 0.000 title claims abstract description 59
- 230000001105 regulatory effect Effects 0.000 claims description 34
- 230000003247 decreasing effect Effects 0.000 claims description 5
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- High-Pressure Fuel Injection Pump Control (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、燃料噴射ポンプでの燃料噴射時期の制御装置
に関し、特に燃料噴射時期調節具の入力部とガバナ機構
の調速レバーとを連結ロフトで連結し、調速レバーの作
動に連動して燃料噴射時期を調整するようにした燃料噴
射時期の制御装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a control device for fuel injection timing in a fuel injection pump, and particularly to a device for controlling fuel injection timing in a fuel injection pump, and in particular, a method for connecting an input part of a fuel injection timing adjustment device and a speed control lever of a governor mechanism. The present invention relates to a fuel injection timing control device that is connected by a loft and that adjusts the fuel injection timing in conjunction with the operation of a speed regulating lever.
（従来技術）
ガバナ機構の調速レバーと燃料噴射時期調節作動具とを
連結ロフトを介して連動させるようにしたものとして、
従来、例えば実開昭５７−４７７６５号公報に示された
ものかある。(Prior art) As a device in which the speed regulating lever of the governor mechanism and the fuel injection timing adjustment actuator are linked via a connecting loft,
Conventionally, there is one disclosed in, for example, Japanese Utility Model Application Publication No. 57-47765.
これは、コントロールスリーブに係合しているピンを揺
動輪に偏芯させて突設し、この揺動輪の入力端部を調速
レバーに連結ロッドで連結し、調速レバーの作動を連結
ロッドを介して揺動輪に伝達することにより、コントロ
ールスリーブを調速レバーに連動させて昇降さぜるよう
に構成してあった。In this system, the pin that engages with the control sleeve is eccentrically protruded from the rocking wheel, and the input end of the rocking wheel is connected to the speed regulating lever with a connecting rod, and the operation of the speed regulating lever is controlled by the connecting rod. By transmitting the signal to the swinging wheel via the control lever, the control sleeve is moved up and down in conjunction with the speed regulating lever.
（解決しようとする課題）
ところが、従来のものでは、調速レバーと揺動輪とを連
結ロットで連結し、揺動輪にピンを偏芯させて立設して
いることから、揺動レバーの作動量とコントロールスリ
ーブの昇降量は、第６図に破線で示すように、直線的に
対応することになる。(Problem to be solved) However, in the conventional type, the regulating lever and the swinging wheel are connected by a connecting rod, and the pin is eccentrically set up on the swinging wheel, so the operation of the swinging lever is difficult. The amount and the amount of elevation of the control sleeve correspond linearly, as shown by the broken line in FIG.
そして、燃料噴射時期の進角量は常用稼働運転領域（高
回転領域）を基準に設定されることから、中回転領域用
の出力が不足する上、アイドリング回転域付近では噴射
時期が適当てはな（、騒音が発生するという問題があっ
た。Since the amount of advance of the fuel injection timing is set based on the normal operation range (high rotation range), the output for the medium rotation range is insufficient, and the injection timing is not appropriate near the idling rotation range. (There was a problem with noise.
本発明はこのような点に着目してなされたもので、エン
ジンの全回転域で燃料噴射時期を適正に調整できる噴射
時期制御装置を提供することを目的とする。The present invention has been made with attention to such points, and an object of the present invention is to provide an injection timing control device that can appropriately adjust fuel injection timing over the entire rotation range of an engine.
４
（問題点を解決する手段）
上述の目的を達成するために本発明は、ガバナ機構の調
速レバーと燃料噴射時期調節具の入力部とを連結ロッド
で連動連結するようにした燃料噴射時期制御装置におい
て、ガバナ機構の調速入力軸に固定した基端側レバーと
、この基端側レバーに揺動可能な状態で枢支した先端側
レバーとで中折れ式の調速レバーを構成し、先端側レノ
＼−と燃料噴射時期調節具の入力レバーとを連結ロッド
て連結するとともに、この先端側レバーにアクセル操作
具から連出したアクセルロッドを接続し、このアクセル
ロフトの回転数上昇側への作動時に先端側レバーを基端
側レバーで受け止めることにより先端側レバーと基端側
レバーとを同行移動させるように構成するとともに、先
端側レバーを捩りコイルバイ、で回転数減少側に弾性付
勢し、この捩りコイルバネのバネ定数を、稼働回転数以
下の回転数領域で調速レバーに回転数上昇側への操作力
が作用した際に先端側レバーを基端側レバーで受け止め
、調速レバーを稼働回転数以下の回転数領域に作動させ
る操作力では先端側レバーを基端側レバーに対して回転
低下側に揺動させるように設定したことを特徴としてい
る。4 (Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention provides a fuel injection timing system in which a speed regulating lever of a governor mechanism and an input section of a fuel injection timing adjustment device are interlocked and connected by a connecting rod. In the control device, a center-folding type speed control lever is composed of a proximal lever fixed to the speed control input shaft of the governor mechanism and a distal lever pivotally supported to the base lever in a swingable state. , the tip end side Leno\- and the input lever of the fuel injection timing adjuster are connected by a connecting rod, and the accelerator rod extending from the accelerator operating tool is connected to this tip side lever, and the rotation speed increasing side of this accelerator loft is connected. When activated, the distal lever is received by the proximal lever so that the distal lever and the proximal lever move together, and the distal lever is twisted and coil-byed to provide elasticity on the rotation speed decreasing side. The spring constant of this torsion coil spring is adjusted so that when an operating force to increase the rotation speed is applied to the speed control lever in the rotation speed range below the operating speed, the tip end lever is received by the base end lever, and the speed control lever is activated. The device is characterized in that the operating force for operating the lever to a rotational speed range below the operating rotational speed causes the distal end lever to swing toward a lower rotation side relative to the proximal lever.
（作 用）
本発明では、ガバナ機構の調速レバーと燃料噴射時期調
節具の入力部とを連結ロッドで連動連結するようにした
燃料噴射時期制御装置において、ガバナ機構の調速入力
軸に固定した基端側レバーと、この基端側レバーに揺動
可能な状態で枢支した先端側レバーとて中折れ式の調速
レバーを構成し、先端側レバーと燃料噴射時期調節具の
入力レバーとを連結ロッドで連結するとともに、この先
端側レバーにアクセル操作具から連出したアクセルロッ
ドを接続し、このアクセルロッドの回転数上昇側への作
動時に先端側レバーを基端側レバーで受け止めることに
より先端側レバーと基端側レバーとを同行移動させるよ
うに構成するとともに、先端側レバーを捩りコイルバネ
で回転数減少側に弾性付勢し、この捩りコイルバネのバ
ネ定数を、稼働回転数以下の回転数領域で調速レバーに
回転数上昇側への操作力が作用した際に先端側レバーを
基端側レバーで受け止め、調速レバーを稼働回転数以下
の回転数領域に作動させる操作力では先端側レバーを基
端側レバーに対して回転低下側に揺動させるように設定
しであるので、稼働回転域での調速レバーの移動量に対
する噴射時期進角比率と、稼働回転域より低回転数の回
転域での調速レバーの移動量に対する噴射時期進角比率
とでは異なった比率でその進角量を制御することになる
。(Function) In the present invention, in the fuel injection timing control device in which the speed regulating lever of the governor mechanism and the input part of the fuel injection timing adjuster are interlocked and connected by a connecting rod, the fuel injection timing control device is fixed to the speed regulating input shaft of the governor mechanism. The proximal lever and the distal lever pivotally supported to the proximal lever constitute a center-foldable speed regulating lever, and the distal lever and the input lever of the fuel injection timing adjuster At the same time, an accelerator rod extended from an accelerator operating tool is connected to this lever on the distal side, and the lever on the distal side is received by the lever on the proximal side when the accelerator rod is operated to increase the rotation speed. The distal end lever and the proximal end lever are configured to move together, and the distal end lever is elastically biased in the direction of decreasing rotation speed by a torsion coil spring, and the spring constant of this torsion coil spring is set to a value below the operating rotation speed. When an operating force to increase the rotation speed is applied to the speed regulating lever in the rotation speed range, the distal end lever is received by the proximal lever, and the operating force that operates the speed regulating lever in the rotation speed region below the operating speed is applied. Since the distal end lever is set to swing toward the lower rotation side relative to the proximal lever, the ratio of injection timing advance to the amount of movement of the regulating lever in the operating rotation range and the lower rotation speed than the operating rotation range. The advance amount is controlled at a different ratio from the injection timing advance ratio to the movement amount of the regulating lever in the rotation speed range.
そして、この場合、稼働回転域より低回転数の回転域で
は、回転数の僅かな変化に対して噴射時期の進角量は大
きく変化することになる。In this case, in a rotation range where the rotation speed is lower than the operating rotation range, the amount of advance of the injection timing changes greatly in response to a slight change in the rotation speed.
（実施例）
図面は本発明の実施例を示し、第１図は要部取出し斜視
図、第２図はディーゼルエンジンの燃料噴射系統図、第
３図は燃料噴射装置の縦断正面図、第４図はその平面図
、第５図は調速レバーの斜視図である。(Embodiment) The drawings show an embodiment of the present invention, in which Fig. 1 is a perspective view taken out of main parts, Fig. 2 is a diagram of a fuel injection system of a diesel engine, Fig. 3 is a longitudinal sectional front view of a fuel injection device, and Fig. 4 is a front view of a fuel injection device. The figure is a plan view thereof, and FIG. 5 is a perspective view of the speed regulating lever.
このディーゼルエンジン（１）はシリンダ（２）に挿入
したピストン（３）の上側に燃焼室（４）を形成したも
のであり、この燃焼室（４）には燃料噴射ポンプ（６）
・燃料噴射管（７）・燃料噴射器（８）を順に流れた燃
料か供給される。燃料噴射ポンプ（６）のプランジャ（
９）はクランクギヤ（１０）・中間−１’ヤ（１１）・
ポンプ駆動ギヤ（１２）を介してポンプ駆動カム（１３
）で上下方向に往復駆動される。This diesel engine (1) has a combustion chamber (4) formed above a piston (3) inserted into a cylinder (2), and a fuel injection pump (6) is installed in this combustion chamber (4).
・Fuel is supplied through the fuel injection pipe (7) and fuel injector (8) in this order. Fuel injection pump (6) plunger (
9) is the crank gear (10), intermediate -1' gear (11),
Pump drive cam (13) via pump drive gear (12)
) to reciprocate in the vertical direction.
この燃料噴射ポンプ（６）は公知のものであり噴射時期
調節可能に構成されている。即ち、プランジャ（９）に
は高圧室り１４）に連通ずるサクションポー ト（１５
）が形成され、プランジャ（９）に外嵌するるコントロ
ールスリーブ（１６）にスピルボート（１７）が形成し
である。そして、燃料噴射時期調節作動具（１８）でコ
ントロールロッド（１９）を介してコントロールスリー
ブ（１６）をプランジャ（９）に対して上下方向に調節
作動させることにより、プレストロークを変更可能に構
成しである。また燃料噴射量の調節はエンジン回転数に
応じて揺動するガバナレバー（２０）で燃料噴射ポンプ
（６）のコントロールラック（２１）を介してプランジ
ャ（９）を回転させ、この切り欠き溝（２２）の位相を
変えることによりなされるようにしである。This fuel injection pump (6) is a known one and is configured to be able to adjust injection timing. That is, the plunger (9) has a suction port (15) that communicates with the high pressure chamber 14).
) is formed, and a spill boat (17) is formed on a control sleeve (16) that fits over the plunger (9). The pre-stroke can be changed by vertically adjusting the control sleeve (16) with respect to the plunger (9) via the control rod (19) using the fuel injection timing adjustment actuator (18). It is. Further, the amount of fuel injection can be adjusted by rotating the plunger (9) via the control rack (21) of the fuel injection pump (6) with the governor lever (20), which swings according to the engine speed. ) by changing the phase of the
このような構造の燃料噴射ポンプにおいて、本発明は燃
料噴射時期調節機構を以下に述べるように構成したもの
である。In a fuel injection pump having such a structure, the present invention has a fuel injection timing adjustment mechanism configured as described below.
即ち、コントロールロッド（１９）の入力端部に入力ア
ーム（２４）を固定し、この入力アーム（２４）に連動
ピン（２５）を立設し、端面カム（２６）に形成した燃
料噴射時期調節作動具（１８）の出力端部を連動ピン（
２５）に接当させるとともに、燃料噴射時期調節作動具
（１８）の入力端部に固定した入力レバー（２７）をガ
バナ機構（Ｇ）の調速レバー（２８）に連結ロッド（２
９）で連動連結している。この調速レバー（２８）ハそ
の内腕部にガバナスプリング（３０）の一端部が係着さ
れており、アクセルペダル等の操作具から連出したアク
セルロッド（３１）で調速レバー（２８）を揺動させる
ことにより、ガバナスプリング（３０）の張力を変化さ
せてガバナレバー（２０）を揺動させるようにしである
。That is, an input arm (24) is fixed to the input end of the control rod (19), an interlocking pin (25) is provided upright on the input arm (24), and the fuel injection timing is adjusted by forming an end cam (26). Connect the output end of the actuator (18) to the interlocking pin (
The input lever (27) fixed to the input end of the fuel injection timing adjustment actuator (18) is brought into contact with the speed control lever (28) of the governor mechanism (G) and connected to the connecting rod (25).
9) is linked and linked. One end of a governor spring (30) is attached to the inner arm of the speed regulating lever (28), and the speed regulating lever (28) is connected to the accelerator rod (31) extending from an operating tool such as an accelerator pedal. By swinging the governor lever (20), the tension of the governor spring (30) is changed and the governor lever (20) is caused to swing.
この調速レバー（２８）は、ガバナ機構（Ｇ）の調速入
力軸（３２）に固定されている基端側レバー（３３）と
、この基端側レバー（３３）に揺動可能に枢支した先端
側レバー（３４）とで構成した中折れレバーで構成して
あり、先端側レバー（３４）にアクセルロッド（３２）
と連結ロッド（２９）とが係着しである。両レバー（３
３）（３４）は先端側レバー（３４）の回転増大側への
揺動を基端側レバー（３３）で受け止めることにより同
行移動するように構成するとともに、その枢支部に配置
した捩りコイルバネ（３５）のバネ力で回転減少側に弾
性付勢しである。This speed regulating lever (28) is pivotably pivoted to a proximal end lever (33) fixed to a speed regulating input shaft (32) of the governor mechanism (G), and to this proximal end lever (33). It consists of a bent lever consisting of a supported distal end lever (34), and an accelerator rod (32) attached to the distal end lever (34).
and the connecting rod (29) are engaged. Both levers (3
3) (34) is configured to move along with the swinging of the distal end lever (34) toward the rotation increasing side by receiving it with the proximal end lever (33), and also includes a torsion coil spring ( 35) is elastically biased toward the rotation decreasing side.
そして、この捩りコイルバネ（３５）のバネ定数は、先
端側レバー（３４）に作用するアクセルロッド（３２）
の操作力が最低稼働回転数を設定する操作力以上である
場合には、捩りコイルバネ（３５）の弾性反発力に抗し
て先端側レバー（３４）を基端側レバー（３３）で受け
止めさせ、最低稼働回転数を設定する操作力以下の場合
には、捩りコイルバネ（３５）の弾性反発力で先端側レ
バー（３４）を基端側レバー（３３）に対して回転数減
少側に揺動させることのできる値に設定しである。The spring constant of this torsion coil spring (35) is the same as that of the accelerator rod (32) that acts on the tip side lever (34).
If the operating force is equal to or greater than the operating force that sets the minimum operating rotation speed, the distal lever (34) is received by the proximal lever (33) against the elastic repulsive force of the torsion coil spring (35). If the operating force is less than the operating force that sets the minimum operating rotation speed, the distal end lever (34) is swung toward the rotation speed reduction side with respect to the proximal lever (33) by the elastic repulsive force of the torsion coil spring (35). Set it to a value that can be used.
調速レバー（２８）をこのように構成すると、エンジン
回転数と燃料噴射時期の進角量は、第６図に示すように
、最低稼働回転数に対応する個所の前後でその変化率が
相違することになり、最低稼働回転数以上の回転数領域
ではその変化率が緩やかで、最低稼働回転数以下の回転
数領域ではその変化率が急激になる。したがって、最低
稼働回転数以下の領域、即ちアイドリング回転領域では
、僅かな回転数の変化に対して噴射時期の制御量が大き
くなることから、アイドリング回転時での騒音を低減さ
せることができるうえ、中速回転領域出の出力をアップ
させることが出来るようになる。When the speed regulating lever (28) is configured in this way, the rate of change in the advance angle of the engine speed and fuel injection timing is different before and after the point corresponding to the lowest operating speed, as shown in Figure 6. Therefore, the rate of change is gradual in the rotational speed range above the minimum operating rotational speed, and the rate of change is rapid in the rotational speed range below the minimum operating rotational speed. Therefore, in the region below the minimum operating rotation speed, that is, in the idling rotation region, the control amount of the injection timing becomes large in response to a slight change in the rotation speed, so it is possible to reduce noise during idling rotation, It becomes possible to increase the output in the medium speed rotation region.
なお、調速レバー（２８）と燃料噴射時期調節具（１８
）の入力レバー（２７）との高さ方向での位相差を吸収
出来るようにするため、両レバー（２８）（２７）と連
結ロッド（２９）とは球面連結構造を有するロッドエン
ド（３６）を介して連結しである。また、連結ロッド（
２９）の両端部にはぞれぞれ逆ネジが刻設しである。In addition, the speed regulating lever (28) and the fuel injection timing adjuster (18)
) In order to absorb the phase difference in the height direction with the input lever (27), both levers (28) (27) and the connecting rod (29) are connected to a rod end (36) having a spherical connecting structure. It is connected via. In addition, the connecting rod (
29) have reverse screws engraved on both ends.
（効 果）
本発明では、ガバナ機構の調速レバーと燃料噴射時期調
節具の入力部とを連結ロッドで連動連結するようにした
燃料噴射時期制御装置において、ガバナ機構の調速入力
軸に固定した基端側レバーと、この基端側レバーに揺動
可能な状態で枢支した先端側レバーとで中折れ式の調速
レバーを構成し、先端側レバーと燃料噴射時期調節具の
入ノＪレバーとを連結ロッドで連結するとともに、この
先端側レバーにアクセル操作具から連出したアクセルロ
ッドを接続し、このアクセルロッドの回転数上昇側への
作動時に先端側レバーを基端側レバーで受け止めること
により先端側レバーと基端側レバーとを同行移動させる
ように構成するとともに、先端側レバーを捩りコイルバ
ネで回転数減少側に弾性付勢し、この捩りコイルバネの
バネ定数を、稼働回転数以下の回転数領域で調速レバー
に回転数上昇側への操作力が作用した際に先端側レバー
を基端側レバーで受け止め、調速レバーを稼働回転数以
下の回転数領域に作動させる操作力では先端側レバーを
基端側レバーに対して回転低下側に揺動させるように設
定しであるので、稼働回転域での調速レバーの移動量に
対する噴射時期進角比率と、稼働回転域より低回転数の
回転域での調速レバーの移動量に対する噴射時期進角比
率とでは異なった比率でその進角量を制御することがで
きる。そして、この場合、稼働回転域より低回転数の回
転域では、回転数の僅かな変化に対して噴射時期の進角
量を大きく変化させることができるから、アイドリング
回転時での燃料噴射時期を遅角させることができ、アイ
ドリング回転特出の騒音を減少させることができるうえ
、稼働回転領域での変化率を少なくして中回転領域で出
力を増大させることができる。(Effects) In the present invention, in a fuel injection timing control device in which the speed regulating lever of the governor mechanism and the input part of the fuel injection timing adjuster are interlocked and connected by a connecting rod, the fuel injection timing control device is fixed to the speed regulating input shaft of the governor mechanism. The proximal lever and the distal lever pivoted to the proximal lever in a swingable manner form a center-foldable speed regulating lever, and the distal lever and the fuel injection timing adjuster are connected to each other. In addition to connecting the J lever with a connecting rod, the accelerator rod extended from the accelerator operating tool is connected to this lever on the distal end, and when the accelerator rod is operated to increase the rotation speed, the lever on the distal end is connected to the lever on the proximal end. The distal end lever and the proximal end lever are configured to move together by receiving the lever, and the distal end lever is elastically biased in the direction of decreasing rotation speed by a torsion coil spring, and the spring constant of this torsion coil spring is set to the operating rotation speed. When an operating force to increase the rotation speed is applied to the speed regulating lever in the following rotation speed range, the distal end lever is received by the base end lever, and the speed regulating lever is operated in the rotation speed region below the operating speed. Since the power is set so that the distal lever is swung toward the lower rotation side relative to the proximal lever, the ratio of injection timing advance to the amount of movement of the regulating lever in the operating rotation range and the operating rotation range are The advance amount can be controlled at a different ratio from the injection timing advance ratio to the movement amount of the regulating lever in a lower rotation speed range. In this case, in the rotation speed range lower than the operating rotation speed range, the advance amount of the injection timing can be greatly changed in response to a slight change in the rotation speed, so the fuel injection timing at idling speed can be adjusted. It is possible to retard the engine speed, reduce the noise peculiar to idling, and increase the output in the medium rotation range by reducing the rate of change in the operating rotation range.
図面は本発明の実施例を示し、第１図は要部取出し斜視
図、第２図はディーゼルエンジンの燃料噴射系統図、第
３図は燃料噴射装置の縦断正面図、第４図はその平面図
、第５図は調速レバーの斜視図、第６図はエンジン回転
数とを進角量の関係を示すグラフである。
トディーゼルエンジン、６・・・燃料噴射ポンプ、９・
・・フランシャ、１６・・・コントロールスリーフ、１
８・・燃料噴射時期調節具、１９・・・コントロールロ
・ノド、Ｇ・・・ガバナ機構、２７・・・（１８）の入
力レバー、２８・・・調速レバー、２９・・・連結ロッ
ド、３１・・・アクセル口・ノド、３２・・・調速入力
軸、３３・・・基端側レバー、３４・・先端側レバー、
３５・・・捩りコイルハネ。
０）The drawings show an embodiment of the present invention, in which Fig. 1 is a perspective view taken out of main parts, Fig. 2 is a fuel injection system diagram of a diesel engine, Fig. 3 is a longitudinal sectional front view of the fuel injection device, and Fig. 4 is a plan view thereof. 5 is a perspective view of the speed regulating lever, and FIG. 6 is a graph showing the relationship between the engine speed and the amount of advance. diesel engine, 6...fuel injection pump, 9.
...Francia, 16...Control sleeve, 1
8...Fuel injection timing adjuster, 19...Control rod, G...Governor mechanism, 27...Input lever of (18), 28...Governing lever, 29...Connection rod , 31...Accelerator port/throat, 32...Governing input shaft, 33...Proximal side lever, 34...Distal side lever,
35...Twisted coil wings. 0)
Claims (1)
プ（６）のプランジャ（９）にコントロールスリーブ（
１６）を往復移動可能に外嵌し、このコントロールスリ
ーブ（１６）をコントロールロッド（１９）に接続し、
コントロールロッド（１９）の入力部を燃料噴射時期調
節具（１８）の出力部に連動連結するとともに、燃料噴
射時期調節具（１８）の入力部をガバナ機構（Ｇ）の調
速レバー（２８）に連結ロッド（２９）を介して連動作
動可能に構成し、調速レバー（２８）の作動に基づき燃
料噴射時期調節具（１８）を作動させて、この燃料噴射
時期調節具（１８）の作動をコントロールロッド（１９
）を介してコントロールスリーブ（１６）に伝達するこ
とにより、燃料噴射ポンプ（６）の燃料噴射時期を調節
するように構成した燃料噴射ポンプの噴射時期制御装置
において、 ガバナ機構（Ｇ）の調速入力軸（３２）に固定した基端
側レバー（３３）と、この基端側レバー（３３）に揺動
可能な状態で枢支した先端側レバー（３４）とで調速レ
バー（２８）を中折れ式に構成し、先端側レバー（３４
）と燃料噴射時期調節具（１８）の入力レバー（２７）
とを連結ロッド（２９）で連結するとともに、この先端
側レバー（３４）にアクセル操作具から連出したアクセ
ルロッド（３１）を接続し、アクセルロッド（３１）の
回転数上昇側への作動時に先端側レバー（３４）を基端
側レバー（３３）で受け止めることにより先端側レバー
（３４）と基端側レバー（３３）とを同行移動させるよ
うに構成するとともに、先端側レバー（３４）を捩りコ
イルバネ（３５）で回転数減少側に弾性付勢し、この捩
りコイルバネ（３５）のバネ定数を、稼働回転数の回転
数領域で調速レバー（２８）に回転数上昇側への操作力
が作用した際に先端側レバー（３４）を基端側レバー（
３３）で受け止め、調速レバー（２８）を稼働回転数以
下の回転数領域に操作する操作力では先端側レバー（３
４）を基端側レバー（３３）に対して回転数低下側に揺
動させるように設定したことを特徴とする燃料噴射ポン
プの燃料噴射時期制御装置[Claims] 1. A control sleeve (
16) is fitted onto the outside so as to be reciprocally movable, and this control sleeve (16) is connected to the control rod (19),
The input part of the control rod (19) is interlocked and connected to the output part of the fuel injection timing adjuster (18), and the input part of the fuel injection timing adjuster (18) is connected to the speed regulating lever (28) of the governor mechanism (G). The fuel injection timing adjustment device (18) is actuated based on the operation of the speed regulating lever (28), and the fuel injection timing adjustment device (18) is operated. control rod (19
), the injection timing control device for a fuel injection pump is configured to adjust the fuel injection timing of the fuel injection pump (6) by transmitting information to the control sleeve (16) via the control sleeve (16). The regulating lever (28) is operated by a proximal lever (33) fixed to the input shaft (32) and a distal lever (34) pivotably supported on the proximal lever (33). It has a center-folding structure with a lever on the tip side (34
) and the input lever (27) of the fuel injection timing adjuster (18)
are connected by a connecting rod (29), and an accelerator rod (31) extended from an accelerator operating tool is connected to this tip side lever (34), so that when the accelerator rod (31) is operated to increase the rotation speed, By receiving the distal lever (34) by the proximal lever (33), the distal lever (34) and the proximal lever (33) are configured to move together, and the distal lever (34) is moved together. A torsion coil spring (35) is elastically biased toward the rotation speed decreasing side, and the spring constant of this torsion coil spring (35) is applied to the regulating lever (28) in the rotation speed range of the operating rotation speed by an operating force toward the rotation speed increase side. When the distal lever (34) is activated, the distal lever (34) is moved to the proximal lever (
33), and when operating the regulating lever (28) to a rotation speed range below the operating rotation speed, the tip side lever (3
4) A fuel injection timing control device for a fuel injection pump, characterized in that the device is set to swing toward the lower rotational speed side with respect to the base end side lever (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1141627A JP2564188B2 (en) | 1989-06-02 | 1989-06-02 | Fuel injection timing control device for fuel injection pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1141627A JP2564188B2 (en) | 1989-06-02 | 1989-06-02 | Fuel injection timing control device for fuel injection pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH039034A true JPH039034A (en) | 1991-01-16 |
| JP2564188B2 JP2564188B2 (en) | 1996-12-18 |
Family
ID=15296439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1141627A Expired - Lifetime JP2564188B2 (en) | 1989-06-02 | 1989-06-02 | Fuel injection timing control device for fuel injection pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2564188B2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5747765U (en) * | 1980-09-01 | 1982-03-17 |
-
1989
- 1989-06-02 JP JP1141627A patent/JP2564188B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5747765U (en) * | 1980-09-01 | 1982-03-17 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2564188B2 (en) | 1996-12-18 |
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