JPH01195931A - Governor for diesel engine - Google Patents
Governor for diesel engineInfo
- Publication number
- JPH01195931A JPH01195931A JP1976488A JP1976488A JPH01195931A JP H01195931 A JPH01195931 A JP H01195931A JP 1976488 A JP1976488 A JP 1976488A JP 1976488 A JP1976488 A JP 1976488A JP H01195931 A JPH01195931 A JP H01195931A
- Authority
- JP
- Japan
- Prior art keywords
- governor
- damper
- fuel
- spring
- lever
- 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
- 239000000446 fuel Substances 0.000 claims abstract description 45
- 238000002347 injection Methods 0.000 claims abstract description 28
- 239000007924 injection Substances 0.000 claims abstract description 28
- 230000007423 decrease Effects 0.000 claims description 16
- 239000000872 buffer Substances 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 5
- 239000000779 smoke Substances 0.000 abstract description 7
- 230000004044 response Effects 0.000 abstract description 2
- 230000004043 responsiveness Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Classifications
-
- 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
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、ディーゼルエンジンのガバナ装置に関し、エ
ンジンを急加速した場合の黒煙の発生をなくすとともに
、負荷が急減した場合のガバナの応答感度を高く維持で
きるものを提供する。[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a governor device for a diesel engine, which eliminates the generation of black smoke when the engine is suddenly accelerated, and improves the response sensitivity of the governor when the load suddenly decreases. Provide something that can maintain a high level of
〈従来技術〉
本発明の対象となるディーゼルエンジンのガバナ装置の
基本構造は、第１図又は第４図に示すように、ディーゼ
ルエンジンＥの燃料噴射ポンプ２の燃料噴射ｆｆ１１節
具３を、ガバナレバー１を介してガバナスプリング４に
よる燃料増量側へのバネ力とエンジン回転数検出作動器
５による燃料減量側へのガバナフォースとの不釣り合い
力で制御操作可能に構成した形式のものである。<Prior art> As shown in FIG. 1 or 4, the basic structure of a governor device for a diesel engine, which is the object of the present invention, is that the fuel injection ff11 joint 3 of the fuel injection pump 2 of the diesel engine E is connected to the governor lever. 1, the control operation can be performed using an unbalanced force between the spring force exerted by the governor spring 4 on the fuel increase side and the governor force exerted on the fuel decrease side by the engine rotation speed detecting actuator 5.
この形式の従来技術としては、実開昭５３−１４９１２
０号公報に示すように（第４図参照）、燃料噴射ポンプ
２の燃料噴射ラック３に直接的に二方向性のエアダンパ
１００を付設し、当該エアダンパ１００はシリンダ室内
に水平摺動自在にピストン１０１を内嵌し、ピストン１
０１とシリンダ内壁との間に小間隙を空けて構成して、
ピストン１０１の圧縮及び吸引時にともに、その出力ロ
ット１０２に緩衝作用を持たせて以下の効果を奏させて
いる。As a conventional technology of this type, Utility Model Application Publication No. 53-14912
As shown in Publication No. 0 (see Fig. 4), a bidirectional air damper 100 is attached directly to the fuel injection rack 3 of the fuel injection pump 2, and the air damper 100 is horizontally slidable within the cylinder chamber. 101 inside, and piston 1
01 and the cylinder inner wall with a small gap,
At the time of compression and suction of the piston 101, the output rod 102 is provided with a buffering effect to produce the following effects.
（１）ハンチングを防止する。(1) Prevent hunting.
（２）急加速時において、燃料噴射ラック３が増ｍ側に
過剰移動することによって、過給器付きエンジンの燃焼
室へ吸入される吸入空気量が燃料の増加に追従できずに
燃料過多となり、燃料が熱分解して黒煙を発生させよう
とするのを、緩やかに燃料噴射量調節具３を動かすこと
によって、空気量を燃料供給量に見合わせて防止する。(2) During sudden acceleration, when the fuel injection rack 3 moves excessively toward the increase in m, the amount of intake air drawn into the combustion chamber of the supercharged engine cannot follow the increase in fuel, resulting in excess fuel. By gently moving the fuel injection amount adjusting tool 3, the amount of air is adjusted to the amount of fuel supply to prevent the fuel from thermally decomposing and generating black smoke.
〈発明が解決しようとする課題〉 上記従来技術においては、以下の問題点がある。<Problem that the invention seeks to solve> The above conventional technology has the following problems.
（１）エンジンＥに対する負荷が急減した場合、エンジ
ン回転数が過剰上昇しようとするのを、エンジン回転数
の増加に見合って回転数検出作動器５が働いて燃料噴射
量調節具３を減量側に移動させようとする。(1) When the load on the engine E suddenly decreases, the engine speed detection actuator 5 works to prevent the engine speed from increasing excessively and adjusts the fuel injection amount regulator 3 to the decreasing side in proportion to the increase in the engine speed. try to move it to
しかしながら、上記従来技術では、エアダンパ１００の
緩衝作用によって調節具３の移動が緩慢になり、エンジ
ン回転数の過剰上昇が円滑に防止できない。However, in the above-mentioned conventional technology, the adjustment tool 3 moves slowly due to the buffering effect of the air damper 100, and an excessive increase in engine speed cannot be smoothly prevented.
（２）エンジンＥに対する負荷か急増した場合、ガバナ
スプリング４のバネ力がガバナフォースに勝って、低減
したエンジン回転数を迅速に上昇させようとするが、エ
アダンパ１００の緩衝作用によって調節具３の移動が緩
慢になるので、エンジン回転数は速やかに上昇せずに、
ガバナの応答性が低下する。(2) When the load on the engine E increases rapidly, the spring force of the governor spring 4 overcomes the governor force and attempts to quickly increase the reduced engine speed, but the damping action of the air damper 100 causes the adjustment tool 3 to Because the movement becomes slow, the engine speed does not increase quickly,
Governor responsiveness decreases.
本発明は、黒煙を防止するとともに、負荷の急減による
エンジン回転数の過剰上Ａの防止及び負荷急増時におけ
るガバナの応答性の向上を技術的課題とする。The technical problem of the present invention is to prevent black smoke, prevent excessive engine rotational speed A due to a sudden decrease in load, and improve the responsiveness of the governor when the load suddenly decreases.
く課題を解決するための手段〉
上記課題を解消する手段を、実施例に対応する図面を用
いて以下に説明する。Means for Solving the Problems> Means for solving the above problems will be described below using drawings corresponding to embodiments.
即ち、本願の第１発明は、前記基本構造のディーゼルエ
ンジンのガバナ装置において、ガバナレバー１に一方向
性のダンパ８を付設し、当該ダンパ８はガバナレバー１
の燃料１１ｆｆｉ側への急速な移動を緩衝し、燃料減少
側への移動を緩衝しないように構成したことを特徴とす
るものである。That is, the first invention of the present application is a governor device for a diesel engine having the above basic structure, in which a unidirectional damper 8 is attached to the governor lever 1, and the damper 8 is attached to the governor lever 1.
The present invention is characterized in that it is configured to buffer the rapid movement of the fuel to the fuel 11ffi side, but not to buffer the movement to the fuel decrease side.
また、第２発明は、上記第１発明のガバナスプリング４
とガバナレバーｌとの間に上記ダンパ８を介在させ、ダ
ンパ８とガバナレバーｌとの間に補助スプリングｌＯを
介装したことを特徴とするものである。Further, a second invention provides the governor spring 4 of the first invention.
The damper 8 is interposed between the damper 8 and the governor lever l, and an auxiliary spring lO is interposed between the damper 8 and the governor lever l.
く作用〉
第１発明によれば、エンジンＥを急加速した場合、燃料
噴射量調節具３がガバナレバーｌにより急速に増量側へ
移動しようとする。のをダンパ８が緩衝して、緩やかに
増量側へ移動するので、吸入空気量は燃料の噴射量に充
分に追従できる。Effect> According to the first invention, when the engine E is rapidly accelerated, the fuel injection amount adjuster 3 attempts to rapidly move toward the increase side by the governor lever l. Since the damper 8 buffers this and moves gently toward the increase side, the amount of intake air can sufficiently follow the amount of fuel injection.
また、ダンパ８は燃料増量側の一方向にしか緩衝作用を
せず、燃料減少側へは緩衝しないので、エンジンＥの負
荷が急減した場合、回転数検出作動器５から発生するガ
バナフォースが増大してガバナレバー１を介して燃料噴
射量調節具３を速やかに減量側に移動させる。In addition, the damper 8 acts as a buffer only in one direction on the fuel increase side and does not buffer on the fuel decrease side, so when the load on the engine E suddenly decreases, the governor force generated from the rotation speed detection actuator 5 increases. Then, the fuel injection amount adjuster 3 is quickly moved to the reducing side via the governor lever 1.
一方、第２発明では、上記第１発明に加えて、エンジン
Ｅの負荷が急増した場合、ガバナフォースの低下に伴っ
てガバナスプリング４のバネ力がガバナレバーｌを増量
側に移動しようとする。On the other hand, in the second invention, in addition to the first invention, when the load on the engine E increases rapidly, the spring force of the governor spring 4 tends to move the governor lever l toward the increase side as the governor force decreases.
このとき、ダンパ８は燃料増量側への移動抵抗になるが
、ダンパ８とガバナレバー１との間に設けた補助スプリ
ング１０のバネ作用によって、ガバナレバー１は容易に
燃料噴射ｍ調節具３を増ｍ側に移動させる。At this time, the damper 8 acts as a resistance to movement toward the fuel increase side, but due to the spring action of the auxiliary spring 10 provided between the damper 8 and the governor lever 1, the governor lever 1 easily increases the fuel injection m adjuster 3. move it to the side.
〈発明の効果〉
（１）第１．２発明によれば、エンジンを急加速した場
合、吸入空気量は燃料の噴射量に充分に追従できるので
、黒煙の発生を円滑に防止できる。<Effects of the Invention> (1) According to the 1.2 invention, when the engine is rapidly accelerated, the amount of intake air can sufficiently follow the amount of fuel injection, so generation of black smoke can be smoothly prevented.
（２）第１．２発明によれば、エンジンの負荷が急減し
た場合、燃料噴射量調節具を速やかに減量側に移動して
、エンジン回転数の異常上昇をなくせる。(2) According to the 1.2 aspect, when the engine load suddenly decreases, the fuel injection amount adjuster can be quickly moved to the decreasing side, thereby eliminating an abnormal increase in the engine speed.
（３）第２発明によれば、補助スプリングによりエンジ
ンの負荷が急増した場合、ガバナレバーは容易に燃料噴
射量調節具を増量側に移動させることができて、ガバナ
装置の応答性を高く維持できる。(3) According to the second invention, when the engine load increases rapidly due to the auxiliary spring, the governor lever can easily move the fuel injection amount adjuster to the increasing side, and the responsiveness of the governor device can be maintained at a high level. .
〈実施例〉 以下、本発明の実施例を図面に基づいて述べる。<Example> Hereinafter, embodiments of the present invention will be described based on the drawings.
第１図は第１実施例を示すディーゼルエンジンのポンプ
収容室の要部縦断正面図であって、ディーゼルエンジン
Ｅのクランクケースのギヤ室１６に接する側にポンプ収
容室１５を設け、ポンプ収容室Ｉ５に燃料噴射ポンプ２
を収容する。FIG. 1 is a longitudinal sectional front view of a main part of a pump housing chamber of a diesel engine showing a first embodiment. Fuel injection pump 2 on I5
to accommodate.
上記ポンプ収容室１５の下方に燃料噴射カム軸１７を支
持し、燃料噴射ポンプ２を当該カム軸１７で噴射駆動可
能に連動するとともに、噴射カム軸１７のギヤ室１６側
の先端にエンジンＥの遠心式の回転数検出作動器５を取
り付ける。A fuel injection camshaft 17 is supported below the pump housing chamber 15, and the fuel injection pump 2 is interlocked with the camshaft 17 so that injection can be driven. Attach a centrifugal rotation speed detection actuator 5.
上記ギヤ室１６にガバナレバー１を支点１８を中心に揺
動自在に枢支し、ガバナレバー１をフォークレバー１ａ
とスプリングレバー１ｂとで構成する。The governor lever 1 is pivotably supported in the gear chamber 16 about a fulcrum 18, and the governor lever 1 is pivoted to the fork lever 1a.
and a spring lever 1b.
フォークレバー１ａの先端のフォーク部１９を燃料噴射
ポンプ１の噴射ｆｆｌ調節ラック３のラックビン６に嵌
挿し、フォークレバー１８の基端寄りの推力伝動部１２
を上記回転数検出作動器５に連動して、作動器５からの
ガバナフォースＧＦをフォークレバー１８で受けるよう
に構成する。Insert the fork portion 19 at the tip of the fork lever 1a into the rack bin 6 of the injection ffl adjustment rack 3 of the fuel injection pump 1, and insert the fork portion 19 at the tip of the fork lever 1a into the
is configured so that the fork lever 18 receives the governor force GF from the actuator 5 in conjunction with the rotation speed detection actuator 5.
また、スプリングレバー１ｂの先端部２ｏを補助スプリ
ング１０と一方向性のエアダンパ８とガバナスプリング
４とを介して調速レバー２１に連動し、上記フォークレ
バー１ａの途中部に設けた抑圧ビン７をスプリングレバ
ー１ｂの途中部の受圧部１１に押圧接当して、フォーク
レバー１ａにガバナスプリング４のバネ力ＧＳを伝動可
能に構成する。Further, the tip 2o of the spring lever 1b is interlocked with the speed regulating lever 21 via the auxiliary spring 10, the unidirectional air damper 8, and the governor spring 4, and the suppression bin 7 provided in the middle of the fork lever 1a is It is configured so that the spring force GS of the governor spring 4 can be transmitted to the fork lever 1a by being pressed into contact with the pressure receiving part 11 in the middle of the spring lever 1b.
この結果、ディーゼルエンジンＥの燃料噴射量調節ラッ
ク３は、ガバナレバー１を介して燃料増量側ｒへのバネ
力ＧＳと燃料減量側ＱへのガバナフォースＧＦとの不釣
り合い力で制御操作可能に構成される。As a result, the fuel injection amount adjustment rack 3 of the diesel engine E is configured to be controllable by the unbalanced force between the spring force GS toward the fuel increase side r and the governor force GF toward the fuel decrease side Q via the governor lever 1. be done.
一方、上記エアダンパ８は、ポンプ収容室１５の上壁１
４に固定した邦画２４と、邦画２４に摺動自在に内嵌し
たピストン２３と、ピストン２３に空けた通気孔２４と
、通気孔２４を開閉可能にする弁体２５とから成り、弁
体２５はピストン２３の右側に付設するとともに、ピス
トン２３の右側のロッド２６にガバナスプリング４を、
また、その左側のロッド２７に補助スプリングｌＯを各
々連結する。On the other hand, the air damper 8 is connected to the upper wall 1 of the pump housing chamber 15.
4, a piston 23 slidably fitted into the Japanese piston 24, a vent hole 24 formed in the piston 23, and a valve body 25 for opening and closing the vent hole 24. is attached to the right side of the piston 23, and the governor spring 4 is attached to the rod 26 on the right side of the piston 23.
Further, auxiliary springs 1O are connected to the left rods 27, respectively.
従って、この場合、ピストン２４が邦画２２を右側に摺
動すると、弁体２５が通気孔２４を閉じるので、ガバナ
スプリング４によって噴射ｆｆ１１節ラック３を増量側
ｒに移動する際の抵抗となる。Therefore, in this case, when the piston 24 slides the Japanese film 22 to the right, the valve body 25 closes the vent hole 24, which provides resistance when the governor spring 4 moves the injection ff11 node rack 3 to the increasing side r.
逆に、ピストン２４が邦画２２を左側に摺動すると、弁
体２５が通気孔２４を開くので、ピストン２４の摺動抵
抗はなく、噴射量調節ラック３を減量側Ｑに迅速に移動
できる。Conversely, when the piston 24 slides the Japanese film 22 to the left, the valve body 25 opens the vent hole 24, so there is no sliding resistance of the piston 24, and the injection amount adjustment rack 3 can be quickly moved to the reduction side Q.
従って、当該ダンパ８の介装によって、エンジンＥの急
加速時の黒煙の発生や、エンジンＥの負荷の急減時のエ
ンジン回転数の異常上昇を各々防止できることは、前記
本発明の作用と効果の項で説明した通りである。Therefore, by installing the damper 8, it is possible to prevent the generation of black smoke when the engine E suddenly accelerates, and the abnormal increase in the engine speed when the load on the engine E suddenly decreases. As explained in the section.
但し、エンジンＥの負荷が急増した場合などには、エン
ジン回転数が落ちてガバナフォースＧＦが減少するので
、補助スプリングＩＯの作用でフォークレバー１ａが噴
射量調節ラック３を増量側ｒに移動するので、ガバナ装
置の応答性は高（維持できる。However, when the load on the engine E increases rapidly, the engine speed drops and the governor force GF decreases, so the fork lever 1a moves the injection amount adjustment rack 3 to the increasing side r by the action of the auxiliary spring IO. Therefore, the responsiveness of the governor device can be maintained high.
他方、第２図は、本発明の第２実施例を示し、一方向性
のダンパ８とガバナスプリング４とを直列状に連結し、
ダンパ８のピストン２３に通気孔２４を二つ空け、その
各々に弁体２５を付設し、ピストン２３から延出した左
側のロッド２７を直接的にガバナレバーｌに連結して、
補助スプリング１０を省略したものである。On the other hand, FIG. 2 shows a second embodiment of the present invention, in which a unidirectional damper 8 and a governor spring 4 are connected in series,
Two ventilation holes 24 are made in the piston 23 of the damper 8, a valve body 25 is attached to each of them, and the left rod 27 extending from the piston 23 is directly connected to the governor lever l.
The auxiliary spring 10 is omitted.
また、第３図は、本発明の第３実施例を示し、一方向性
のダンパ８とガバナスプリング４とを各々並列状にガバ
ナレバー１に連結したものである。FIG. 3 shows a third embodiment of the present invention, in which a unidirectional damper 8 and a governor spring 4 are connected to the governor lever 1 in parallel.
尚、ダンパ８は、弁体２５を省略して、ピストン２３に
細い通気孔２４を空けるだけでも差し支えないし、エア
ダンパに限らず油圧ダンパでも良い。Note that the damper 8 may be provided by omitting the valve body 25 and simply forming a thin ventilation hole 24 in the piston 23, or may be a hydraulic damper instead of an air damper.
第１図〜第３図は本発明の実施例を示し、第１図は第１
実施例を示すディーゼルエンジンのポンプ収容室の要部
縦断正面図、第２図は第２実施例を示すガバナ装置の概
略説明図、第３図は第３実施例を示す第２図相当図、第
４図は従来技術を示すエアダンパの要部縦断面図である
。1 to 3 show embodiments of the present invention, and FIG. 1 is a first embodiment of the present invention.
FIG. 2 is a schematic explanatory diagram of a governor device showing a second embodiment; FIG. 3 is a view equivalent to FIG. 2 showing a third embodiment; FIG. FIG. 4 is a longitudinal cross-sectional view of a main part of an air damper showing the prior art.
Claims (1)
の燃料噴射量調節具（３）を、ガバナレバー（１）を介
してガバナスプリング（４）による燃料増量側へのバネ
力とエンジン回転数検出作動器（５）による燃料減量側
へのガバナフォースとの不釣り合い力で制御操作可能に
構成したディーゼルエンジンのガバナ装置において、ガ
バナレバー（１）に一方向性のダンパ（８）を付設し、
当該ダンパ（８）はガバナレバー（１）の燃料増量側へ
の急速な移動を緩衝し、燃料減少側への移動は緩衝しな
いように構成したことを特徴とするディーゼルエンジン
のガバナ装置 ２、ガバナスプリング（４）とガバナレバー（１）との
間に上記ダンパ（８）を介在させ、ダンパ（８）とガバ
ナレバー（１）との間に補助スプリング（１０）を介装
したことを特徴とする請求項１に記載のディーゼルエン
ジンのガバナ装置[Claims] 1. Fuel injection pump (2) for diesel engine (E)
The fuel injection amount adjuster (3) is controlled by a spring force applied to the fuel increase side by the governor spring (4) via the governor lever (1), and a governor force applied to the fuel decrease side by the engine speed detection actuator (5). In a diesel engine governor device configured to be controllable with an unbalanced force, a unidirectional damper (8) is attached to a governor lever (1),
Governor device 2 for a diesel engine, governor spring, characterized in that the damper (8) is configured to buffer rapid movement of the governor lever (1) toward the fuel increase side, but not dampen movement toward the fuel decrease side. (4) The damper (8) is interposed between the damper (8) and the governor lever (1), and an auxiliary spring (10) is interposed between the damper (8) and the governor lever (1). Governor device for a diesel engine according to 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1976488A JPH01195931A (en) | 1988-01-30 | 1988-01-30 | Governor for diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1976488A JPH01195931A (en) | 1988-01-30 | 1988-01-30 | Governor for diesel engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01195931A true JPH01195931A (en) | 1989-08-07 |
| JPH0532565B2 JPH0532565B2 (en) | 1993-05-17 |
Family
ID=12008405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1976488A Granted JPH01195931A (en) | 1988-01-30 | 1988-01-30 | Governor for diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01195931A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5730338U (en) * | 1980-07-29 | 1982-02-17 | ||
| JPS58172023U (en) * | 1982-05-11 | 1983-11-17 | 株式会社クボタ | Internal combustion engine speed control device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5295104A (en) * | 1976-02-06 | 1977-08-10 | Hitachi Ltd | Data transmission device |
-
1988
- 1988-01-30 JP JP1976488A patent/JPH01195931A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5730338U (en) * | 1980-07-29 | 1982-02-17 | ||
| JPS58172023U (en) * | 1982-05-11 | 1983-11-17 | 株式会社クボタ | Internal combustion engine speed control device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0532565B2 (en) | 1993-05-17 |
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