JP4164464B2 - Horizontal diesel engine - Google Patents
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- JP4164464B2 JP4164464B2 JP2004086296A JP2004086296A JP4164464B2 JP 4164464 B2 JP4164464 B2 JP 4164464B2 JP 2004086296 A JP2004086296 A JP 2004086296A JP 2004086296 A JP2004086296 A JP 2004086296A JP 4164464 B2 JP4164464 B2 JP 4164464B2
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本発明は、横型ディーゼルエンジンに関するものである。 The present invention relates to a horizontal diesel engine.
従来の横型ディーゼルエンジンとして、本発明と同様、シリンダブロックの前部にガバナケースを取り付け、このガバナケース内にメカニカルガバナのガバナ力発生手段とガバナレバーと燃料噴射ポンプとを収容したものがある。 As a conventional horizontal diesel engine, a governor case is attached to the front part of a cylinder block as in the present invention, and a governor force generating means of a mechanical governor, a governor lever, and a fuel injection pump are accommodated in the governor case.
この種のエンジンでは、ギヤケース内にガバナレバー軸を収容し、このガバナレバー軸にガバナレバーを取り付け、このガバナレバーの出力部を燃料噴射ポンプの燃料調量部に係合させ、ガバナ力とガバナスプリング力との不釣合い力により、ガバナレバーを揺動させて、燃料調量部を調量するようになっている。このため、この種のエンジンでは、メカニカルガバナの各部の摩耗を防止し、燃料調量部の調量精度が低下するのを防止する必要がある。
従来では、この目的達成手段として、メカニカルガバナの各部の寸法精度を高め、各部のガタつきを低減させる等の手段が採用されている。
In this type of engine, a governor lever shaft is accommodated in a gear case, a governor lever is attached to the governor lever shaft, an output portion of the governor lever is engaged with a fuel metering portion of a fuel injection pump, and a governor force and a governor spring force are combined. The fuel metering part is metered by swinging the governor lever by the unbalanced force. For this reason, in this type of engine, it is necessary to prevent wear of each part of the mechanical governor and to prevent the metering accuracy of the fuel metering unit from being lowered.
Conventionally, as this means for achieving the purpose, means such as increasing the dimensional accuracy of each part of the mechanical governor and reducing the backlash of each part has been adopted.
この従来技術では、次の問題がある。
《問題》 エンジンの製造コストが高くなる。
メカニカルガバナの各部の寸法精度を高めるには、高い製造技術と、製造設備を必要とするため、エンジンの製造コストが高くなる。また、その他の手段として、各部を耐摩耗性の高い素材で構成することや、各部に高周波焼き入れ等の処理を施すことも考えられるが、このような手段も、同様に高い製造技術と、製造設備を必要とするため、エンジンの製造コストが高くなる。
This prior art has the following problems.
<Problem> The manufacturing cost of the engine increases.
In order to raise the dimensional accuracy of each part of a mechanical governor, since a high manufacturing technique and manufacturing equipment are required, the manufacturing cost of an engine becomes high. In addition, as other means, it is conceivable that each part is made of a material having high wear resistance, and that each part is subjected to a treatment such as induction hardening. Since a manufacturing facility is required, the manufacturing cost of the engine increases.
本発明は、上記問題点を解決することができる横型ディーゼルエンジン、すなわち、製造コストを安く維持しつつ、燃料調量部の調量精度が低下するのを防止することができる横型ディーゼルエンジンを提供することを課題とする。 The present invention provides a horizontal diesel engine that can solve the above-described problems, that is, a horizontal diesel engine that can prevent the metering accuracy of the fuel metering unit from being lowered while maintaining a low manufacturing cost. The task is to do.
(請求項１に係る発明)
請求項１に係る発明の発明特定事項は、次の通りである。
図１、図２に例示するように、シリンダブロック(１)の前部にガバナケース(２)を取り付け、このガバナケース(２)内にメカニカルガバナ(６)のガバナ力発生手段(７)とガバナレバー(８)と燃料噴射ポンプ(９)とを収容した、横型ディーゼルエンジンにおいて、
ガバナケース(２)内にガバナレバー軸(１０)を上下方向に向けて収容し、このガバナレバー軸(１０)にガバナレバー(８)を取り付け、このガバナレバー(８)をガバナ力入力レバー(１１)とスプリング力入力レバー(１２)とで構成し、ガバナ力入力レバー(１１)の入力部(１１ａ)(１１ａ)をガバナ力発生手段(７)の出力部(７ｃ)に当接させ、ガバナ力入力レバー(１１)の出力部(１１ｂ)を燃料噴射ポンプ(９)の燃料調量部(９ａ)に係合させ、スプリング力入力レバー(１２)にガバナスプリング力(１３ａ)を入力し、このガバナスプリング力(１３ａ)を調速レバー(１４)で調節するようにし、
図４(Ａ)(Ｂ)に例示するように、スプリング力入力レバー(１２)とガバナ力入力レバー(１１)のうち、一方のレバー(１２)にトルクアップ装置(１５)を設け、トルクアップ装置(１５)を、トルクピン(１５ａ)とトルクスプリング(１５ｂ)とホルダ(１５ｃ)とで構成し、トルクピン(１５ａ)をトルクスプリング(１５ｂ)でホルダ(１５ｃ)から押し出す方向に付勢し、ホルダ(１５ｃ)から押し出すトルクピン(１５ａ)の先端部を他方のレバー(１１)に当接させ、スプリング力入力レバー(１２)に燃料制限具(１６)を臨ませ、
調速レバー(１４)を高速位置に設定した場合、
図４(Ａ)に例示するように、部分負荷運転時には、ガバナ力(７ａ)とガバナスプリング力(１３ａ)とで、トルクピン(１５ａ)をホルダ(１５ｃ)に押し込んだまま、ガバナ力(７ａ)とガバナスプリング力(１３ａ)との不釣合い力で、ガバナ力入力レバー(１１)とスプリング力入力レバー(１２)とを一体に揺動させて、燃料調量部(９ａ)を部分負荷調量領域(１７)で調量し、
図４(Ｂ)に例示するように、定格負荷運転時には、スプリング力入力レバー(１２)を燃料制限具(１６)に当接させて、燃料調量部(９ａ)の定格負荷調量位置(１８)を規制し、
過負荷運転時には、スプリング力入力レバー(１２)を燃料制限具(１６)に当接させたまま、ガバナ力(７ａ)とトルクスプリング力(１５ｄ)との不釣合い力で、ガバナ力入力レバー(１１)を揺動させて、燃料調量部(９ａ)を過負荷調量領域(１９)で調量するようにし、
図１に例示するように、ガバナ力入力レバー(１１)とスプリング力入力レバー(１２)の各ボスをガバナレバー軸(１０)に外嵌させるに当たり、スプリング力入力レバー(１２)のボスを一対の上下ボス(１２ａ)(１２ｂ)で構成し、この上下ボス(１２ａ)(１２ｂ)をガバナ力入力レバー(１１)のボス(１１ｃ)の上下に配置し、
図１に例示するように、ガバナレバー軸(１０)の上端部にガバナスプリング力入力アーム(１０ｃ)を取り付け、調速レバー(１４)とスプリング力入力アーム(１０ｃ)との間にガバナスプリング(１３)を架設し、ガバナレバー軸(１０)にスプリング力入力レバー(１２)の上ボス(１２ａ)を固定し、
ギヤケース(２)の天井壁(２ａ)のうち、ガバナレバー(８)の上方に位置する部分をレバー上方部分(２ｂ)とし、ガバナ力発生手段(７)のガバナウェイト(７ｂ)上方に位置する部分をウェイト上方部分(２ｃ)として、レバー上方部分(２ｂ)をウェイト上方部分(２ｃ)よりも低くし、このレバー上方部分(２ｂ)にガバナレバー軸(１０)の上軸受けボス(１０ａ)を設け、この上軸受けボス(１０ａ)をレバー上方部分(２ｂ)から上下に突出させた、ことを特徴とする横型ディーゼルエンジン。
(Invention of Claim 1)
Invention specific matters of the invention according to
As illustrated in FIGS. 1 and 2, a governor case (2) is attached to the front portion of the cylinder block (1), and a governor force generating means (7) of a mechanical governor (6) is installed in the governor case (2). In a horizontal diesel engine containing a governor lever (8) and a fuel injection pump (9),
The governor lever shaft (10) is accommodated in the governor case (2) in the vertical direction, the governor lever (8) is attached to the governor lever shaft (10), and the governor lever (8) is connected to the governor force input lever (11) and the spring. A force input lever (12), and the input portion (11a) (11a) of the governor force input lever (11) is brought into contact with the output portion (7c) of the governor force generating means (7) to The output part (11b) of (11) is engaged with the fuel metering part (9a) of the fuel injection pump (9), and the governor spring force (13a) is input to the spring force input lever (12). Adjust the force (13a) with the governor lever (14),
As illustrated in FIGS. 4A and 4B, a torque-up device (15) is provided on one of the spring force input lever (12) and the governor force input lever (11) to increase the torque. The device (15) comprises a torque pin (15a), a torque spring (15b), and a holder (15c), and the torque pin (15a) is urged by the torque spring (15b) in the direction of pushing out from the holder (15c), The tip of the torque pin (15a) pushed out from (15c) is brought into contact with the other lever (11), and the fuel limiter (16) is brought into contact with the spring force input lever (12),
When the speed control lever (14) is set to the high speed position,
As illustrated in FIG. 4A, at the time of partial load operation, the governor force (7a) while the torque pin (15a) is pushed into the holder (15c) by the governor force (7a) and the governor spring force (13a). The governor force input lever (11) and the spring force input lever (12) are swung integrally with the unbalanced force between the gas meter and the governor spring force (13a), and the fuel metering portion (9a) is partially loaded metering. Weigh in area (17)
As illustrated in FIG. 4B, during the rated load operation, the spring force input lever (12) is brought into contact with the fuel limiter (16), and the rated load metering position (9a) of the fuel metering unit (9a) is obtained. 18)
During overload operation, the governor force input lever (12) is caused by the unbalanced force between the governor force (7a) and the torque spring force (15d) while keeping the spring force input lever (12) in contact with the fuel limiter (16). 11) is swung so that the fuel metering section (9a) is metered in the overload metering region (19),
As illustrated in FIG. 1, when the bosses of the governor force input lever (11) and the spring force input lever (12) are externally fitted to the governor lever shaft (10), the bosses of the spring force input lever (12) are paired with each other. It is composed of upper and lower bosses (12a) and (12b), and these upper and lower bosses (12a) and (12b) are arranged above and below the boss (11c) of the governor force input lever (11) .
As illustrated in FIG. 1, a governor spring force input arm (10c) is attached to the upper end portion of the governor lever shaft (10), and a governor spring (13) is interposed between the governing lever (14) and the spring force input arm (10c). ) And fix the upper boss (12a) of the spring force input lever (12) to the governor lever shaft (10).
Of the ceiling wall (2a) of the gear case (2), the part located above the governor lever (8) is the lever upper part (2b), and the part located above the governor weight (7b) of the governor force generating means (7) The upper part of the lever (2c), the upper part of the lever (2b) is lower than the upper part of the weight (2c), and the upper part of the lever (2b) is provided with an upper bearing boss (10a) of the governor lever shaft (10), A horizontal diesel engine characterized in that the upper bearing boss (10a) protrudes vertically from the lever upper portion (2b) .
(請求項２から請求項１０に係る発明)
請求項２から請求項７に係る発明は、主として図１に例示されている。
請求項８、請求項９に係る発明は、主として図５に例示されている。
請求項１０に係る発明は、主として図４(Ｂ)に例示されている。
(Invention according to
The invention according to
The invention according to
The invention according to
（請求項１に係る発明）
請求項１に係る発明は、次の効果を奏する。
《効果》 エンジンの製造コストを安く維持することができる。
図１に例示するように、燃料調量部(９ａ)の調量精度が低下するのを防止するに当たり、スプリング力入力レバー(１２)のボスを一対の上下ボス(１２ａ)(１２ｂ)で構成し、この上下ボス(１２ａ)(１２ｂ)をガバナ力入力レバー(１１)のボス(１１ｃ)の上下に配置するだけで済むため、高い製造技術と、製造設備を必要とせず、エンジンの製造コストを安く維持することができる。
(Invention according to Claim 1)
The invention according to
<Effect> Engine manufacturing costs can be kept low.
As illustrated in FIG. 1, the boss of the spring force input lever (12) is composed of a pair of upper and lower bosses (12a) (12b) in order to prevent the metering accuracy of the fuel metering section (9a) from being lowered. Since the upper and lower bosses (12a) and (12b) need only be arranged above and below the boss (11c) of the governor force input lever (11), high manufacturing technology and manufacturing equipment are not required, and the engine manufacturing cost is reduced. Can be kept cheap.
《効果》 スプリング力入力レバーのガタつきを抑制し、ひいては燃料調量部の調量精度が低下するのを防止することができる。
図１に例示するように、スプリング力入力レバー(１２)のボスを一対の上下ボス(１２ａ)(１２ｂ)で構成し、この上下ボス(１２ａ)(１２ｂ)をガバナ力入力レバー(１１)のボス(１１ｃ)の上下に配置したので、上ボス(１２ａ)の上端から下ボス(１２ｂ)の下端までの距離を長くとることができ、スプリング力入力レバー(１２)がガバナレバー軸(１０)に対して傾きにくい構造となる。このため、スプリング力入力レバー(１２)のガタつきを抑制し、トルクピン(１５ａ)とその当接部等、メカニカルガバナ(６)の各部の摩耗を抑制し、ひいては燃料調量部(９ａ)の調量精度が低下するのを防止することができる。
《効果》 ガバナレバー軸の捩れを抑制し、ひいては燃料調量部の調量精度が低下するのを防止することができる。
図１に例示するように、ガバナレバー軸(１０)の上端部にガバナスプリング力入力アーム(１０ｃ)を取り付け、調速レバー(１４)とスプリング力入力アーム(１０ｃ)との間にガバナスプリング(１３)を架設し、ガバナレバー軸(１０)にスプリング力入力レバー(１２)の上ボス(１２ａ)を固定したので、ガバナレバー軸(１０)に下ボス(１２ｂ)を固定する場合に比べ、ガバナスプリング力入力アーム(１０ｃ)から固定部分までの離間距離が短くなり、その分だけ、ガバナレバー軸(１０)の捩れを抑制し、ひいては燃料調量部(９ａ)の調量精度が低下するのを防止することができる。
《効果》 ガバナレバー軸のガタつきを抑制し、ひいては燃料調量部の調量精度が低下するのを防止することができる。
図１に例示するように、上軸受けボス(１０ａ)をレバー上方部分(２ｂ)から上下に突出させたので、上軸受けボス(１０ａ)の上下方向の寸法を長くすることができ、ガバナレバー軸(１０)のガタつきを抑制し、ひいては燃料調量部(９ａ)の調量精度が低下するのを防止することができる。
<Effect> It is possible to suppress the play of the spring force input lever, and to prevent the metering accuracy of the fuel metering unit from being lowered.
As illustrated in FIG. 1, the boss of the spring force input lever (12) is composed of a pair of upper and lower bosses (12a) and (12b), and the upper and lower bosses (12a) and (12b) are connected to the governor force input lever (11). Since it is arranged above and below the boss (11c), the distance from the upper end of the upper boss (12a) to the lower end of the lower boss (12b) can be increased, and the spring force input lever (12) is attached to the governor lever shaft (10). On the other hand, it is difficult to tilt. For this reason, the play of the spring force input lever (12) is suppressed, the wear of each part of the mechanical governor (6) such as the torque pin (15a) and its abutting part is suppressed, and consequently the fuel metering part (9a). It is possible to prevent the metering accuracy from being lowered.
<Effect> It is possible to suppress the twisting of the governor lever shaft and thereby prevent the metering accuracy of the fuel metering unit from being lowered.
As illustrated in FIG. 1, a governor spring force input arm (10c) is attached to the upper end portion of the governor lever shaft (10), and a governor spring (13) is interposed between the governing lever (14) and the spring force input arm (10c). ) And the upper boss (12a) of the spring force input lever (12) is fixed to the governor lever shaft (10). Therefore, the governor spring force is lower than the case where the lower boss (12b) is fixed to the governor lever shaft (10). The distance from the input arm (10c) to the fixed portion is shortened, and accordingly, the twist of the governor lever shaft (10) is suppressed, and consequently the metering accuracy of the fuel metering unit (9a) is prevented from being lowered. be able to.
<Effect> It is possible to suppress the rattling of the governor lever shaft and to prevent the metering accuracy of the fuel metering unit from being lowered.
As illustrated in FIG. 1, since the upper bearing boss (10a) protrudes vertically from the lever upper portion (2b), the vertical dimension of the upper bearing boss (10a) can be increased, and the governor lever shaft ( The rattling of 10) can be suppressed, and as a result, the metering accuracy of the fuel metering unit (9a) can be prevented from being lowered.
（請求項２に係る発明）
《効果》 スプリング力入力レバーのガタつきがより小さくなる。
図１に例示するように、スプリング力入力レバー(１２)の下ボス(１２ｂ)の上に、ガバナ力入力レバー(１１)のボス(１１ｃ)を載置したので、ガバナ力入力レバー(１１)の荷重がスプリング力入力レバー(１２)の下ボス(１２ｂ)で受け止められ、スプリング力入力レバー(１２)のガタつきがより小さくなる。
(Invention according to Claim 2 )
<Effect> The backlash of the spring force input lever becomes smaller.
As illustrated in FIG. 1, since the boss (11c) of the governor force input lever (11) is placed on the lower boss (12b) of the spring force input lever (12), the governor force input lever (11) Is received by the lower boss (12b) of the spring force input lever (12), and the backlash of the spring force input lever (12) becomes smaller.
（請求項３に係る発明）
《効果》 ガバナスプリング等への泥土等の付着を防止し、ひいては燃料調量部の調量精度が低下するのを防止することができる。
図１、図３に例示するように、レバー上方部分(２ｂ)の前端縁部から立壁(２ｄ)を立設し、この立壁(２ｄ)とシリンダブロック(１)との間で、レバー上方部分(２ｂ)の上方に前記ウェイト上方部分(２ｃ)よりも低い部品収容空間(２ｅ)を設け、この部品収容空間(２ｅ)内に、調速レバー(１４)とガバナスプリング(１３)とスプリング力入力アーム(１０ｃ)とガバナレバー軸(１０)の上軸受けボス(１０ａ)を収容したので、エンジンを露出状態で機械に搭載した場合でも、前方から飛来してくる泥土等は立壁(２ｄ)で受け止められる。このため、ガバナスプリング(１３)等への泥土等の付着を防止し、ひいては燃料調量部(９ａ)の調量精度が低下するのを防止することができる。
（請求項４に係る発明）
《効果》 スプリング力入力レバーがガバナレバー軸に対してより傾きにくい構造となる。
図１に例示するように、ガバナ力入力レバー(１１)のボス(１１ｃ)とスプリング力入力レバー(１２)の上ボス(１２ａ)との間に、ガバナレバー軸(１０)の下軸受けボス(１０ｂ)を配置したので、ガバナ力入力レバー(１１)のボス(１１ｃ)の下方にこの下軸受けボス(１０ｂ)を配置する場合に比べ、スプリング力入力レバー(１２)の上ボス(１２ａ)と下ボス(１２ｂ)との離間距離をより長くとることができ、スプリング力入力レバー(１２)がガバナレバー軸(１０)に対してより傾きにくい構造となる。このため、スプリング力入力レバー(１２)のガタつきがより小さくなる。
(Invention according to claim 3 )
<Effect> It is possible to prevent adhesion of mud or the like to the governor spring or the like, and to prevent the metering accuracy of the fuel metering unit from being lowered.
As shown in FIG. 1 and FIG. 3, a standing wall (2d) is erected from the front edge of the lever upper portion (2b), and the lever upper portion is placed between the standing wall (2d) and the cylinder block (1). A component housing space (2e) lower than the weight upper portion (2c) is provided above (2b), and a governor lever (14), a governor spring (13) and a spring force are provided in the component housing space (2e). Since the input arm (10c) and the upper bearing boss (10a) of the governor lever shaft (10) are accommodated, even when the engine is mounted on the machine in an exposed state, mud etc. flying from the front is received by the standing wall (2d). It is done. For this reason, adhesion of mud etc. to a governor spring (13) etc. can be prevented, and it can prevent that the metering accuracy of a fuel metering part (9a) falls by extension.
(Invention of Claim 4)
<Effect> The spring force input lever is less inclined with respect to the governor lever shaft.
As illustrated in FIG. 1, the lower bearing boss (10b) of the governor lever shaft (10) is disposed between the boss (11c) of the governor force input lever (11) and the upper boss (12a) of the spring force input lever (12). ), The upper boss (12a) and the lower boss (12a) of the spring force input lever (12) are lower than the lower bearing boss (10b) disposed below the boss (11c) of the governor force input lever (11). The distance from the boss (12b) can be made longer, and the spring force input lever (12) is less inclined with respect to the governor lever shaft (10). For this reason, the play of the spring force input lever (12) becomes smaller.
（請求項５に係る発明）
《効果》 ガバナ力入力レバーとガバナ力発生手段との当接部の摩耗を抑制し、ひいては燃料調量部の調量精度が低下するのを防止することができる。
図１に例示するように、ガバナ力入力レバー(１１)のボス(１１ｃ)に上下一対の入力部(１１ａ)(１１ａ)を設け、この上下一対の入力部(１１ａ)(１１ａ)をガバナ力発生手段(７)の出力部(７ｃ)に当接させたので、ガバナ力入力レバー(１１)に単一の入力部を設ける場合に比べ、各当接部の接圧を小さくし、これらの摩耗を抑制し、ひいては燃料調量部(９ａ)の調量精度が低下するのを防止することができる。
(Invention according to claim 5 )
<Effect> It is possible to suppress wear of the contact portion between the governor force input lever and the governor force generating means, and to prevent the metering accuracy of the fuel metering unit from being lowered.
As illustrated in FIG. 1, the boss (11c) of the governor force input lever (11) is provided with a pair of upper and lower input portions (11a) and (11a), and the pair of upper and lower input portions (11a) and (11a) are provided with a governor force. Since the output means (7c) of the generating means (7) is brought into contact with each other, the contact pressure of each contact portion is reduced compared with the case where a single input portion is provided in the governor force input lever (11). It is possible to suppress the wear and to prevent the metering accuracy of the fuel metering unit (9a) from being lowered.
（請求項６に係る発明）
《効果》 ガバナ力入力レバーのガタつきを防止し、ひいては燃料調量部の調量精度が低下するのを防止することができる。
図１に例示するように、ガバナ力入力レバー(１１)のボス(１１ｃ)の上下方向の寸法をガバナ軸(７ｄ)の外径寸法よりも大きくし、このボス(１１ｃ)の上下端部から突出させた上下一対の入力部(１１ａ)(１１ａ)を、ガバナ軸(７ｄ)の上下で、ガバナ力発生手段(７)の出力部(７ｃ)に当接させたので、ボス(１１ｃ)の上下方向の寸法を長くすることができ、ガバナ力入力レバー(１１)がガバナレバー軸(１０)に対して傾きにくい構造となる。このため、ガバナ力入力レバー(１１)のガタつきを防止し、ひいては燃料調量部(９ａ)の調量精度が低下するのを防止することができる。
(Invention of Claim 6 )
<Effect> It is possible to prevent the governor force input lever from rattling and to prevent the metering accuracy of the fuel metering unit from being lowered.
As illustrated in FIG. 1, the vertical dimension of the boss (11c) of the governor force input lever (11) is made larger than the outer diameter dimension of the governor shaft (7d), and the upper and lower ends of the boss (11c) are The pair of upper and lower input portions (11a) and (11a) thus projected are brought into contact with the output portion (7c) of the governor force generating means (7) above and below the governor shaft (7d), so that the boss (11c) The vertical dimension can be increased, and the governor force input lever (11) is less likely to tilt with respect to the governor lever shaft (10). For this reason, it is possible to prevent the governor force input lever (11) from rattling and to prevent the metering accuracy of the fuel metering section (9a) from being lowered.
（請求項７に係る発明）
《効果》 ガバナウェイトと傾斜板との摩耗を抑制し、ひいては燃料調量部の調量精度が低下するのを防止することができる。
図１に例示するように、ガバナウェイト(７ｂ)を３個以上並設させたので、ガバナウェイト(７ｂ)とスライダ(７ｅ)との接触個所が１個所または２個所しかない場合に比べ、各接触部分の接圧が小さくなり、ガバナウェイト(７ｂ)とスライダ(７ｅ)との摩耗を抑制し、ひいては燃料調量部(９ａ)の調量精度が低下するのを防止することができる。
(Invention of Claim 7)
<Effect> It is possible to suppress wear of the governor weight and the inclined plate and to prevent the metering accuracy of the fuel metering unit from being lowered.
As illustrated in FIG. 1, since three or more governor weights (7b) are arranged side by side, each of the contact points between the governor weight (7b) and the slider (7e) has only one or two contact points. The contact pressure at the contact portion is reduced, wear of the governor weight (7b) and the slider (7e) can be suppressed, and the metering accuracy of the fuel metering unit (9a) can be prevented from being lowered.
（請求項８に係る発明）
《効果》 低負荷側調量領域では、エンジンの回転が安定する。
図５に例示するように、低負荷側調量領域(１７ａ)では、アイドルスプリング力(２１ａ)とガバナスプリング力(１３ａ)とでガバナレバー(８)を燃料調量部(９ａ)の燃料増量側(Ｒ)に付勢するため、ガバナスプリング力(１３ａ)のみで付勢する場合に比べ、ガバナレバー(８)がハンチングを起こしにくく、エンジンの回転が安定する。
(Invention of Claim 8 )
<Effect> The engine rotation is stabilized in the low load side metering region.
As illustrated in FIG. 5, in the low load side metering region (17a), the governor lever (8) is moved to the fuel increasing side of the fuel metering unit (9a) by the idle spring force (21a) and the governor spring force (13a). Since the force is applied to (R), the governor lever (8) is less likely to cause hunting and the rotation of the engine is stabilized as compared with the case where the force is applied only with the governor spring force (13a).
《効果》 速度変動率が大きくなるのを防止し、メカニカルガバナの精度を高めることができる。
高負荷側調量領域(２２)では、ガバナレバー(８)にかかるアイドルスプリング力(２１ａ)がなくなり、ガバナスプリング力(１３ａ)だけでガバナレバー(８)を燃料調量部(９ａ)の燃料増量側(Ｒ)に付勢するので、アイドルスプリング力(２１ａ)がガバナレバー(８)に継続してかかる場合に比べ、高いエンジン回転速度を得ることができる。このため、高負荷運転時と無負荷運転時の回転偏差を小さくして、速度変動率が大きくなるのを防止し、メカニカルガバナ(６)の精度を高めることができる。
<Effect> It is possible to prevent the speed fluctuation rate from increasing and to improve the accuracy of the mechanical governor.
In the high load side metering region (22), the idle spring force (21a) applied to the governor lever (8) is lost, and the governor lever (8) is moved to the fuel metering side of the fuel metering unit (9a) only by the governor spring force (13a). Since (R) is urged, it is possible to obtain a higher engine speed than when the idle spring force (21a) is continuously applied to the governor lever (8). For this reason, it is possible to reduce the rotational deviation between the high load operation and the no load operation, to prevent the speed fluctuation rate from increasing, and to improve the accuracy of the mechanical governor (6).
（請求項９に係る発明）
《効果》 簡易構造のアイドルスプリングで速度変動率が大きくなるのを防止することができる。
図５に例示するように、高負荷運転時と無負荷運転時の回転偏差を小さくするに当たり、アイドルスプリング(２１)の先端にフック(２１ｂ)を設け、このフック(２１ｂ)の折り返し部(２１ｃ)をガバナレバー(８)のスプリング係合孔(８ａ)に摺動自在に挿通させるだけでよい。このため、簡易構造のアイドルスプリング(２１)で速度変動率が大きくなるのを防止することができる。
(Invention according to claim 9 )
<Effect> It is possible to prevent the speed fluctuation rate from increasing with the idle spring having a simple structure.
As illustrated in FIG. 5, in order to reduce the rotational deviation between the high load operation and the no load operation, a hook (21b) is provided at the tip of the idle spring (21), and the folded portion (21c) of the hook (21b) is provided. ) Is slidably inserted into the spring engagement hole (8a) of the governor lever (8). For this reason, it is possible to prevent the speed fluctuation rate from being increased by the idle spring (21) having a simple structure.
（請求項１０に係る発明）
《効果》 簡易構造で始動増量を行うことができる。
図４(Ｂ)に例示するように、燃料制限具(１６)の基端側に始動用スプリング(２３)を設けるだけの簡易構造で、始動増量を行うことができる。
(Invention according to claim 10 )
<Effect> It is possible to increase the starting amount with a simple structure.
As illustrated in FIG. 4B, the starting increase can be performed with a simple structure in which the starting spring (23) is provided on the base end side of the fuel limiter (16).
本発明の実施の形態を図面に基づいて説明する。
図１〜図５はいずれも本発明の実施形態に係る横型ディーゼルエンジンを説明する図である。
Embodiments of the present invention will be described with reference to the drawings.
1 to 5 are views for explaining a horizontal diesel engine according to an embodiment of the present invention.
このエンジンの概要は、次の通りである。
図１、図２に示すように、シリンダブロック(１)の前部にガバナケース(２)を取り付け、このガバナケース(２)内にメカニカルガバナ(６)のガバナ力発生手段(７)とガバナレバー(８)と燃料噴射ポンプ(９)とを収容している。このガバナケース(２)内には、クランクギヤ(３)とガバナギヤ(４)と動弁カムギヤ(５)も収容している。
The outline of this engine is as follows.
As shown in FIGS. 1 and 2, a governor case (2) is attached to the front of the cylinder block (1), and a governor force generating means (7) and a governor lever of a mechanical governor (6) are installed in the governor case (2). (8) and the fuel injection pump (9) are accommodated. A crank gear (3), a governor gear (4), and a valve cam gear (5) are also accommodated in the governor case (2).
メカニカルガバナ(６)の構成は、次の通りである。
図１に示すように、ガバナケース(２)内にガバナレバー軸(１０)を上下方向に向けて収容し、このガバナレバー軸(１０)にガバナレバー(８)を取り付け、このガバナレバー(８)をガバナ力入力レバー(１１)とスプリング力入力レバー(１２)とで構成し、ガバナ力入力レバー(１１)の入力部(１１ａ)(１１ａ)をガバナ力発生手段(７)の出力部(７ｃ)に当接させ、ガバナ力入力レバー(１１)の出力部(１１ｂ)を燃料噴射ポンプ(９)の燃料調量部(９ａ)に係合させ、スプリング力入力レバー(１２)にガバナスプリング力(１３ａ)を入力し、このガバナスプリング力(１３ａ)を調速レバー(１４)で調節するようにしている。燃料調量部(９ａ)は、燃料調量ラックであり、ガバナ力入力レバー(１１)の出力部(１１ｂ)は燃料調量ラックのラックピン(９ｂ)に係合させている。
The configuration of the mechanical governor (6) is as follows.
As shown in FIG. 1, the governor lever shaft (10) is accommodated in the governor case (2) in the vertical direction, the governor lever (8) is attached to the governor lever shaft (10), and the governor lever (8) is attached to the governor force. The input lever (11) and the spring force input lever (12) are configured so that the input portions (11a) and (11a) of the governor force input lever (11) are brought into contact with the output portion (7c) of the governor force generating means (7). The output portion (11b) of the governor force input lever (11) is engaged with the fuel metering portion (9a) of the fuel injection pump (9), and the governor spring force (13a) is applied to the spring force input lever (12). The governor spring force (13a) is adjusted by the speed control lever (14). The fuel metering section (9a) is a fuel metering rack, and the output section (11b) of the governor force input lever (11) is engaged with the rack pin (9b) of the fuel metering rack.
図２に示すように、スプリング力入力レバー(１２)にトルクアップ装置(１５)を設け、図４(Ａ)に示すように、トルクアップ装置(１５)を、トルクピン(１５ａ)とトルクスプリング(１５ｂ)とホルダ(１５ｃ)とで構成し、トルクピン(１５ａ)をトルクスプリング(１５ｂ)でホルダ(１５ｃ)から押し出す方向に付勢し、ホルダ(１５ｃ)から押し出すトルクピン(１５ａ)の先端部をガバナ力入力レバー(１１)に当接させ、スプリング力入力レバー(１２)に燃料制限具(１６)を臨ませている。このトルクアップ装置(１５)はスプリング力入力レバー(１２)ではなく、ガバナ力入力レバー(１１)に取り付け、トルクピン(１５ａ)の先端部をスプリング力入力レバー(１２)に当接させてもよい。 As shown in FIG. 2, a torque-up device (15) is provided on the spring force input lever (12). As shown in FIG. 4 (A), the torque-up device (15) is connected to a torque pin (15a) and a torque spring ( 15b) and a holder (15c), the torque pin (15a) is urged by the torque spring (15b) in the direction of pushing out from the holder (15c), and the tip of the torque pin (15a) pushed out from the holder (15c) is The fuel limiter (16) is brought into contact with the force input lever (11) and the spring force input lever (12) is faced. The torque increase device (15) may be attached to the governor force input lever (11) instead of the spring force input lever (12), and the tip of the torque pin (15a) may be brought into contact with the spring force input lever (12). .
メカニカルガバナ(６)の機能は、次の通りである。
調速レバー(１４)を高速位置に設定した場合、図４(Ａ)に示すように、部分負荷運転時には、ガバナ力(７ａ)とガバナスプリング力(１３ａ)とで、トルクピン(１５ａ)をホルダ(１５ｃ)に押し込んだまま、ガバナ力(７ａ)とガバナスプリング力(１３ａ)との不釣合い力で、ガバナ力入力レバー(１１)とスプリング力入力レバー(１２)とを一体に揺動させて、燃料調量部(９ａ)を部分負荷調量領域(１７)で調量する。図面上、燃料調量部(９ａ)の調量位置は、ラックピン(９ｂ)の位置によって特定する。図中の符号(Ｒ)は燃料増量側であり、(Ｌ)は燃料減量側である。
The function of the mechanical governor (6) is as follows.
When the speed control lever (14) is set to the high speed position, as shown in FIG. 4 (A), during partial load operation, the torque pin (15a) is held by the holder with the governor force (7a) and the governor spring force (13a). (15c), the governor force input lever (11) and the spring force input lever (12) are swung together by the unbalanced force between the governor force (7a) and the governor spring force (13a). Then, the fuel metering unit (9a) is metered in the partial load metering region (17). In the drawing, the metering position of the fuel metering section (9a) is specified by the position of the rack pin (9b). The symbol (R) in the figure is the fuel increase side, and (L) is the fuel decrease side.
図４(Ｂ)に示すように、定格負荷運転時には、スプリング力入力レバー(１２)を燃料制限具(１６)に当接させて、燃料調量部(９ａ)の定格負荷調量位置(１８)を規制する。過負荷運転時には、スプリング力入力レバー(１２)を燃料制限具(１６)に当接させたまま、ガバナ力(７ａ)とトルクスプリング力(１５ｄ)との不釣合い力で、ガバナ力入力レバー(１１)を揺動させて、燃料調量部(９ａ)を過負荷調量領域(１９)で調量する。過負荷運転時には、ホルダ(１５ｃ)からのトルクピン(１５ａ)の突出により、燃料調量部(９ａ)を過負荷調量領域(１９)で調量し、エンジン回転速度を最大トルク回転速度に速やかに近づけ、エンストを抑制する。なお、定格負荷運転時には、最大出力を得ることができ、最大トルク回転速度では最大トルクを得ることができる。 As shown in FIG. 4B, during rated load operation, the spring force input lever (12) is brought into contact with the fuel limiter (16), and the rated load metering position (18) of the fuel metering section (9a) is obtained. ). During overload operation, the governor force input lever (12) is caused by the unbalanced force between the governor force (7a) and the torque spring force (15d) while keeping the spring force input lever (12) in contact with the fuel limiter (16). 11) is swung to meter the fuel metering section (9a) in the overload metering region (19). During overload operation, the fuel metering section (9a) is metered in the overload metering area (19) by the projection of the torque pin (15a) from the holder (15c), and the engine speed is quickly adjusted to the maximum torque speed. The engine stall is suppressed. Note that the maximum output can be obtained during rated load operation, and the maximum torque can be obtained at the maximum torque rotation speed.
スプリング力入力レバー(１２)に関する構造は、次の通りである。
図１に示すように、ガバナ力入力レバー(１１)とスプリング力入力レバー(１２)の各ボスをガバナレバー枢軸(１０)に外嵌させるに当たり、スプリング力入力レバー(１２)のボスを一対の上下ボス(１２ａ)(１２ｂ)で構成し、この上下ボス(１２ａ)(１２ｂ)をガバナ力入力レバー(１１)のボス(１１ｃ)の上下に配置している。ガバナ力入力レバー(１１)のボス(１１ｃ)とスプリング力入力レバー(１２)の上ボス(１２ａ)との間に、ガバナレバー軸(１０)の下軸受けボス(１０ｂ)を配置している。ガバナレバー軸(１０)の上端部にガバナスプリング力入力アーム(１０ｃ)を取り付け、調速レバー(１４)とスプリング力入力アーム(１０ｃ)との間にガバナスプリング(１３)を架設し、ガバナレバー軸(１０)にスプリング力入力レバー(１２)の上ボス(１２ａ)を固定している。スプリング力入力レバー(１２)の下ボス(１２ｂ)の上に、ガバナ力入力レバー(１１)のボス(１１ｃ)を載置している。図２に示すように、スプリング力入力レバー(１２)の上ボス(１２ａ)とガバナレバー軸(１０)との径方向にピン(１０ｄ)を貫通させ、このピン(１０ｄ)でガバナレバー軸(１０)にスプリング力入力レバー(１２)の上ボス(１２ａ)を固定している。
The structure relating to the spring
As shown in FIG. 1, when the bosses of the governor force input lever (11) and the spring force input lever (12) are externally fitted to the governor lever pivot (10), the bosses of the spring force input lever (12) are The bosses (12a) and (12b) are formed, and the upper and lower bosses (12a) and (12b) are arranged above and below the boss (11c) of the governor force input lever (11). A lower bearing boss (10b) of the governor lever shaft (10) is disposed between the boss (11c) of the governor force input lever (11) and the upper boss (12a) of the spring force input lever (12). A governor spring force input arm (10c) is attached to the upper end of the governor lever shaft (10), and a governor spring (13) is installed between the speed control lever (14) and the spring force input arm (10c). The upper boss (12a) of the spring force input lever (12) is fixed to 10). The boss (11c) of the governor force input lever (11) is placed on the lower boss (12b) of the spring force input lever (12). As shown in FIG. 2, a pin (10d) is penetrated in the radial direction between the upper boss (12a) of the spring force input lever (12) and the governor lever shaft (10), and the governor lever shaft (10) is penetrated by this pin (10d). The upper boss (12a) is fixed to the spring force input lever (12).
ガバナレバー軸(１０)に関する構造は、次の通りである。
図１に示すように、ギヤケース(２)の天井壁(２ａ)のうち、ガバナレバー(８)の上方に位置する部分をレバー上方部分(２ｂ)とし、ガバナ力発生手段(７)のガバナウェイト(７ｂ)上方に位置する部分をウェイト上方部分(２ｃ)として、レバー上方部分(２ｂ)をウェイト上方部分(２ｃ)よりも低くし、このレバー上方部分(２ｂ)にガバナレバー軸(１０)の上軸受けボス(１０ａ)を設け、この上軸受けボス(１０ａ)をレバー上方部分(２ｂ)から上下に突出させている。前記レバー上方部分(２ｂ)の前端縁部から立壁(２ｄ)を立設し、この立壁(２ｄ)とシリンダブロック(１)との間で、レバー上方部分(２ｂ)の上方に、前記ウェイト上方部分(２ｃ)よりも低い位置に部品収容空間(２ｅ)を設け、この部品収容空間(２ｅ)内に、調速レバー(１４)とガバナスプリング(１３)とスプリング力入力アーム(１０ｃ)とガバナレバー軸(１０)の上軸受けボス(１０ａ)とを収容している。調速レバー(１４)の先端には、操作つまみ(１４ａ)を設け、この操作つまみ(１４ａ)を立壁(２ｄ)の円弧溝(２ｆ)に沿って移動させることにより、調速レバー(１４)を所定の調速位置に設定することができる。この操作つまみ(１４ａ)を円弧溝(２ｆ)の所定位置で仮止めすることにより、調速レバー(１４)を所定の調速位置に固定することができる。
The structure relating to the governor lever shaft (10) is as follows.
As shown in FIG. 1, a portion of the ceiling wall (2a) of the gear case (2) located above the governor lever (8) is defined as a lever upper portion (2b), and a governor weight (7) governor weight (7) 7b) The upper portion is the weight upper portion (2c), the lever upper portion (2b) is lower than the weight upper portion (2c), and the lever upper portion (2b) is connected to the upper bearing of the governor lever shaft (10). A boss (10a) is provided, and the upper bearing boss (10a) protrudes vertically from the lever upper portion (2b). A standing wall (2d) is erected from the front end edge of the lever upper portion (2b), and between the standing wall (2d) and the cylinder block (1), above the lever upper portion (2b), above the weight A component housing space (2e) is provided at a position lower than the portion (2c), and a speed control lever (14), a governor spring (13), a spring force input arm (10c), and a governor lever are provided in the component housing space (2e). An upper bearing boss (10a) of the shaft (10) is accommodated. An operation knob (14a) is provided at the tip of the speed control lever (14), and the operation knob (14a) is moved along the circular arc groove (2f) of the standing wall (2d), thereby adjusting the speed control lever (14). Can be set to a predetermined speed control position. By temporarily fixing the operation knob (14a) at a predetermined position of the arc groove (2f), the speed control lever (14) can be fixed at a predetermined speed control position.
ガバナ力発生手段(７)に関する構造は、次の通りである。
図１に示すように、ガバナ力入力レバー(１１)のボス(１１ｃ)に上下一対の入力部(１１ａ)(１１ａ)を設け、この上下一対の入力部(１１ａ)(１１ａ)をガバナ力発生手段(７)の出力部(７ｃ)に当接させている。ガバナ力入力レバー(１１)のボス(１１ｃ)の上下方向の寸法をガバナ軸(７ｄ)の外径寸法よりも大きくし、このボス(１１ｅ)の上下端部から突出させた上下一対の入力部(１１ａ)(１１ａ)を、ガバナ軸(７ｄ)の上下で、ガバナ力発生手段(７)の出力部(７ｃ)に当接させている。図２に示すように、ガバナ力発生手段(７)として球状のガバナウェイト(７ｂ)とスライダ(７ｅ)とを設け、スライダ(７ｅ)の斜面にガバナウェイト(７ｂ)を当接させ、遠心力で遠心方向に進出するガバナウェイト(７ｂ)で、スライダ(７ｅ)をガバナ軸(７ｄ)に沿って進出させるに当たり、ガバナウェイト(７ｂ)を６個並設させている。出力部(７ｃ)はスライスベアリングである。
The structure relating to the governor force generating means (7) is as follows.
As shown in FIG. 1, the boss (11c) of the governor force input lever (11) is provided with a pair of upper and lower input portions (11a) and (11a), and the pair of upper and lower input portions (11a) and (11a) generate the governor force. It is made to contact | abut to the output part (7c) of a means (7). The vertical dimension of the boss (11c) of the governor force input lever (11) is made larger than the outer diameter dimension of the governor shaft (7d), and a pair of upper and lower input parts are projected from the upper and lower ends of the boss (11e). (11a) (11a) is brought into contact with the output portion (7c) of the governor force generating means (7) above and below the governor shaft (7d). As shown in FIG. 2, a spherical governor weight (7b) and a slider (7e) are provided as the governor force generating means (7), and the governor weight (7b) is brought into contact with the inclined surface of the slider (7e) to thereby generate centrifugal force. In order to advance the slider (7e) along the governor shaft (7d) with the governor weight (7b) that advances in the centrifugal direction, six governor weights (7b) are juxtaposed. The output part (7c) is a slice bearing.
その他の構造は、次の通りである。
図５に示すように、ガバナケース(２)に固定したスプリング係止手段(２０)とガバナ力入力レバー(１１)との間にアイドルスプリング(２１)を架設し、燃料調量部(９ａ)の低負荷側調量領域(１７ａ)では、アイドルスプリング力(２１ａ)とガバナスプリング力(１３ａ)とでガバナ力入力レバー(１１)を燃料調量部(９ａ)の燃料増量側(Ｒ)に付勢し、低負荷側調量領域(１７ａ)を越える高負荷側調量領域(２２)では、ガバナ力入力レバー(１１)にかかるアイドルスプリング力(２１ａ)がなくなり、ガバナスプリング力(１３ａ)だけでガバナ力入力レバー(１１)を燃料調量部(９ａ)の燃料増量側(Ｒ)に付勢するようにしている。アイドルスプリング(２１)の先端にフック(２１ｂ)を設け、このフック(２１ｂ)の折り返し部(２１ｃ)をガバナレバー(８)のスプリング係合孔(８ａ)に摺動自在に挿通させ、燃料調量部(９ａ)の低負荷側調量領域(１７ａ)では、フック(２１ｂ)の折り曲げ部(２１ｄ)がガバナレバー(８)と係合し、高負荷側調量領域(２２)では、フック(２１ｂ)の折り曲げ部(２１ｄ)がガバナレバー(８)と係合しないようにしている。ガバナ力入力レバー(１１)に代えて、スプリング力入力レバー(１２)をアイドルスプリング(２１)で付勢してもよい。
Other structures are as follows.
As shown in FIG. 5, an idle spring (21) is installed between the spring locking means (20) fixed to the governor case (2) and the governor force input lever (11), and the fuel metering section (9a). In the low load side metering region (17a), the governor force input lever (11) is moved to the fuel increasing side (R) of the fuel metering unit (9a) by the idle spring force (21a) and the governor spring force (13a). In the high load side metering region (22) that is biased and exceeds the low load side metering region (17a), the idle spring force (21a) applied to the governor force input lever (11) is eliminated, and the governor spring force (13a) is eliminated. Only the governor force input lever (11) is urged to the fuel increase side (R) of the fuel metering section (9a). A hook (21b) is provided at the tip of the idle spring (21), and the folded portion (21c) of the hook (21b) is slidably inserted into the spring engagement hole (8a) of the governor lever (8) to adjust the fuel amount. The bent portion (21d) of the hook (21b) engages with the governor lever (8) in the low load side metering region (17a) of the portion (9a), and the hook (21b) in the high load side metering region (22). ) Is not engaged with the governor lever (8). Instead of the governor force input lever (11), the spring force input lever (12) may be biased by the idle spring (21).
図４(Ｂ)に示すように、燃料制限具(１６)の基端側に始動用スプリング(２３)を設け、始動用スプリング(２３)で燃料制限具(１６)をその先端方向に付勢し、ガバナ力(７ａ)の発生していないエンジン始動時に、調速レバー(１４)を高速位置に設定することにより、始動用スプリング力(２３ａ)に抗して、ガバナスプリング力(１３ａ)で燃料制限具(１６)をその基端方向に押し込み、燃料調量部(９ａ)を始動増量位置(２４)に位置させるようにしている。ガバナ力(７ａ)の発生している通常運転時には、ガバナ力(７ａ)がガバナスプリング力(１３ａ)と対抗するため、燃料制限具(１６)がその基端方向に押し込まれることはなく、燃料制限具(１６)はその本来の機能を果たす。 As shown in FIG. 4B, a starting spring (23) is provided on the base end side of the fuel restricting tool (16), and the starting spring (23) urges the fuel restricting tool (16) in the distal direction. At the time of starting the engine where the governor force (7a) is not generated, the governor spring force (13a) is set against the starting spring force (23a) by setting the speed control lever (14) to a high speed position. The fuel limiter (16) is pushed in the base end direction so that the fuel metering section (9a) is positioned at the start increasing position (24). During normal operation in which the governor force (7a) is generated, the governor force (7a) opposes the governor spring force (13a), so that the fuel limiter (16) is not pushed in the proximal direction, and the fuel The limiter (16) performs its original function.
(１)…シリンダブロック、(２)…ガバナケース、(２ａ)…天井壁、(２ｂ)…レバー上方部分、(２ｃ)…ウェイト上方部分、(２ｄ)…立壁、(２ｅ)…部品収容空間、(３)…クランクギヤ、(４)…ガバナギヤ、(５)…燃料噴射カムギヤ、(６)…メカニカルガバナ、(７)…ガバナ力発生手段、(７ａ)…ガバナ力、(７ｂ)…ガバナウェイト、(７ｃ)…出力部、(７ｄ)…ガバナ軸、(７ｅ)…スライダ、(８)…ガバナレバー、(８ｃ)…スプリング係合孔、(９)…燃料噴射ポンプ、(９ａ)…燃料調量部、(１０)…ガバナレバー軸、(１０ａ)…上軸受けボス、(１０ｂ)…下軸受けボス、(１０ｃ)…スプリング力入力アーム、(１１)…ガバナ力入力レバー、(１１ａ)…入力部、(１１ｂ)…出力部、(１１ｃ)…ボス、(１２)…スプリング力入力レバー、(１２ａ)…上ボス、(１２ｂ)…下ボス、(１３)…ガバナスプリング、(１３ａ)…ガバナスプリング力、(１４)…調速レバー、(１５)…トルクアップ装置、(１５ａ)…トルクピン、(１５ｂ)…トルクスプリング、(１５ｃ)…スプリングホルダ、(１５ｄ)…トルクスプリング力、(１６)…燃料制限具、(１７)…部分負荷調量領域、(１７ａ)…低負荷側調量領域、(１８)…定格負荷調量位置、(１９)…過負荷調量領域、(２０)…スプリング固定手段、(２１)…アイドルスプリング、(２１ａ)…アイドルスプリング力、(２１ｂ)…フック、(２１ｃ)…折り返し部、(２１ｄ)…折り曲げ部、(２２)…高負荷側調量領域、(２３)…始動用スプリング、(２３ａ)…始動用スプリング力、(２４)…始動増量位置。 (1) ... cylinder block, (2) ... governor case, (2a) ... ceiling wall, (2b) ... upper part of lever, (2c) ... upper part of weight, (2d) ... standing wall, (2e) ... parts accommodation space , (3) ... crank gear, (4) ... governor gear, (5) ... fuel injection cam gear, (6) ... mechanical governor, (7) ... governor force generating means, (7a) ... governor force, (7b) ... governor Weight, (7c) ... Output section, (7d) ... Governor shaft, (7e) ... Slider, (8) ... Governor lever, (8c) ... Spring engagement hole, (9) ... Fuel injection pump, (9a) ... Fuel Metering section, (10) ... governor lever shaft, (10a) ... upper bearing boss, (10b) ... lower bearing boss, (10c) ... spring force input arm, (11) ... governor force input lever, (11a) ... input Part, (11b) ... output part, (11c) ... boss, (12) ... spring force input lever, (12a) ... upper boss, (12b) ... lower button (13) ... Governor spring, (13a) ... Governor spring force, (14) ... Speed control lever, (15) ... Torque-up device, (15a) ... Torque pin, (15b) ... Torque spring, (15c) ... Spring holder, (15d) torque spring force, (16) fuel limiter, (17) partial load metering region, (17a) low load side metering region, (18) rated load metering position, (19) ... Overload metering area, (20) ... Spring fixing means, (21) ... Idle spring, (21a) ... Idle spring force, (21b) ... Hook, (21c) ... Folding part, (21d) ... Bending portion, (22) ... high load side metering region, (23) ... starting spring, (23a) ... starting spring force, (24) ... starting increasing position.
Claims (10)
ガバナケース(２)内にガバナレバー軸(１０)を上下方向に向けて収容し、このガバナレバー軸(１０)にガバナレバー(８)を取り付け、このガバナレバー(８)をガバナ力入力レバー(１１)とスプリング力入力レバー(１２)とで構成し、ガバナ力入力レバー(１１)の入力部(１１ａ)(１１ａ)をガバナ力発生手段(７)の出力部(７ｃ)に当接させ、ガバナ力入力レバー(１１)の出力部(１１ｂ)を燃料噴射ポンプ(９)の燃料調量部(９ａ)に係合させ、スプリング力入力レバー(１２)にガバナスプリング力(１３ａ)を入力し、このガバナスプリング力(１３ａ)を調速レバー(１４)で調節するようにし、
スプリング力入力レバー(１２)とガバナ力入力レバー(１１)のうち、一方のレバー(１２)にトルクアップ装置(１５)を設け、トルクアップ装置(１５)を、トルクピン(１５ａ)とトルクスプリング(１５ｂ)とホルダ(１５ｃ)とで構成し、トルクピン(１５ａ)をトルクスプリング(１５ｂ)でホルダ(１５ｃ)から押し出す方向に付勢し、ホルダ(１５ｃ)から押し出すトルクピン(１５ａ)の先端部を他方のレバー(１１)に当接させ、スプリング力入力レバー(１２)に燃料制限具(１６)を臨ませ、
調速レバー(１４)を高速位置に設定した場合、
部分負荷運転時には、ガバナ力(７ａ)とガバナスプリング力(１３ａ)とで、トルクピン(１５ａ)をホルダ(１５ｃ)に押し込んだまま、ガバナ力(７ａ)とガバナスプリング力(１３ａ)との不釣合い力で、ガバナ力入力レバー(１１)とスプリング力入力レバー(１２)とを一体に揺動させて、燃料調量部(９ａ)を部分負荷調量領域(１７)で調量し、
定格負荷運転時には、スプリング力入力レバー(１２)を燃料制限具(１６)に当接させて、燃料調量部(９ａ)の定格負荷調量位置(１８)を規制し、
過負荷運転時には、スプリング力入力レバー(１２)を燃料制限具(１６)に当接させたまま、ガバナ力(７ａ)とトルクスプリング力(１５ｄ)との不釣合い力で、ガバナ力入力レバー(１１)を揺動させて、燃料調量部(９ａ)を過負荷調量領域(１９)で調量するようにし、
ガバナ力入力レバー(１１)とスプリング力入力レバー(１２)の各ボスをガバナレバー枢軸(１０)に外嵌させるに当たり、スプリング力入力レバー(１２)のボスを一対の上下ボス(１２ａ)(１２ｂ)で構成し、この上下ボス(１２ａ)(１２ｂ)をガバナ力入力レバー(１１)のボス(１１ｃ)の上下に配置し、
ガバナレバー軸(１０)の上端部にガバナスプリング力入力アーム(１０ｃ)を取り付け、調速レバー(１４)とスプリング力入力アーム(１０ｃ)との間にガバナスプリング(１３)を架設し、ガバナレバー軸(１０)にスプリング力入力レバー(１２)の上ボス(１２ａ)を固定し、
ギヤケース(２)の天井壁(２ａ)のうち、ガバナレバー(８)の上方に位置する部分をレバー上方部分(２ｂ)とし、ガバナ力発生手段(７)のガバナウェイト(７ｂ)上方に位置する部分をウェイト上方部分(２ｃ)として、レバー上方部分(２ｂ)をウェイト上方部分(２ｃ)よりも低くし、このレバー上方部分(２ｂ)にガバナレバー軸(１０)の上軸受けボス(１０ａ)を設け、この上軸受けボス(１０ａ)をレバー上方部分(２ｂ)から上下に突出させた、ことを特徴とする横型ディーゼルエンジン。 A governor case (2) is attached to the front of the cylinder block (1), and a governor force generating means (7), a governor lever (8) and a fuel injection pump (9) of the mechanical governor (6) are installed in the governor case (2). In a horizontal diesel engine that houses
The governor lever shaft (10) is accommodated in the governor case (2) in the vertical direction, the governor lever (8) is attached to the governor lever shaft (10), and the governor lever (8) is connected to the governor force input lever (11) and the spring. A force input lever (12), and the input portion (11a) (11a) of the governor force input lever (11) is brought into contact with the output portion (7c) of the governor force generating means (7) to The output part (11b) of (11) is engaged with the fuel metering part (9a) of the fuel injection pump (9), and the governor spring force (13a) is input to the spring force input lever (12). Adjust the force (13a) with the governor lever (14),
Of the spring force input lever (12) and governor force input lever (11), one lever (12) is provided with a torque increase device (15), and the torque increase device (15) is connected to a torque pin (15a) and a torque spring ( 15b) and a holder (15c), the torque pin (15a) is urged by the torque spring (15b) in the direction of pushing out from the holder (15c), and the tip of the torque pin (15a) pushed out from the holder (15c) is The fuel limiter (16) faces the spring force input lever (12).
When the speed control lever (14) is set to the high speed position,
During partial load operation, the governor force (7a) and governor spring force (13a) are not balanced between the governor force (7a) and governor spring force (13a) while the torque pin (15a) is pushed into the holder (15c). Force, the governor force input lever (11) and the spring force input lever (12) are swung together to meter the fuel metering portion (9a) in the partial load metering region (17),
During rated load operation, the spring force input lever (12) is brought into contact with the fuel limiter (16) to regulate the rated load metering position (18) of the fuel metering section (9a),
During overload operation, the governor force input lever (12) is caused by the unbalanced force between the governor force (7a) and the torque spring force (15d) while keeping the spring force input lever (12) in contact with the fuel limiter (16). 11) is swung so that the fuel metering section (9a) is metered in the overload metering region (19),
When the bosses of the governor force input lever (11) and the spring force input lever (12) are externally fitted to the governor lever pivot (10), the boss of the spring force input lever (12) is paired with a pair of upper and lower bosses (12a) (12b). The upper and lower bosses (12a) (12b) are arranged above and below the boss (11c) of the governor force input lever (11) ,
A governor spring force input arm (10c) is attached to the upper end of the governor lever shaft (10), and a governor spring (13) is installed between the speed control lever (14) and the spring force input arm (10c). a boss (12a) is fixed on the spring force input lever (12) to 10),
Of the ceiling wall (2a) of the gear case (2), the part located above the governor lever (8) is the lever upper part (2b), and the part located above the governor weight (7b) of the governor force generating means (7) The upper part of the lever (2c), the upper part of the lever (2b) is lower than the upper part of the weight (2c), and the upper part of the lever (2b) is provided with an upper bearing boss (10a) of the governor lever shaft (10), A horizontal diesel engine characterized in that the upper bearing boss (10a) protrudes vertically from the lever upper portion (2b).
スプリング力入力レバー(１２)の下ボス(１２ｂ)の上に、ガバナ力入力レバー(１１)のボス(１１ｃ)を載置した、ことを特徴とする横型ディーゼルエンジン。 The horizontal diesel engine according to claim 1 ,
A horizontal diesel engine characterized in that a boss (11c) of a governor force input lever (11) is placed on a lower boss (12b) of a spring force input lever (12).
前記レバー上方部分(２ｂ)の前端縁部から立壁(２ｄ)を立設し、この立壁(２ｄ)とシリンダブロック(１)との間で、レバー上方部分(２ｂ)の上方に、前記ウェイト上方部分(２ｃ)よりも低い位置に部品収容空間(２ｅ)を設け、この部品収容空間(２ｅ)内に、調速レバー(１４)とガバナスプリング(１３)とスプリング力入力アーム(１０ｃ)とガバナレバー軸(１０)の上軸受けボス(１０ａ)とを収容した、ことを特徴とする横型ディーゼルエンジン。 In the horizontal diesel engine according to claim 1 or 2 ,
A standing wall (2d) is erected from the front end edge of the lever upper portion (2b), and between the standing wall (2d) and the cylinder block (1), above the lever upper portion (2b), above the weight A component housing space (2e) is provided at a position lower than the portion (2c), and a speed control lever (14), a governor spring (13), a spring force input arm (10c), and a governor lever are provided in the component housing space (2e). A horizontal diesel engine characterized by accommodating an upper bearing boss (10a) of a shaft (10).
ガバナ力入力レバー(１１)のボス(１１ｃ)とスプリング力入力レバー(１２)の上ボス(１２ａ)との間に、ガバナレバー軸(１０)の下軸受けボス(１０ｂ)を配置した、ことを特徴とする横型ディーゼルエンジン。 The horizontal diesel engine according to any one of claims 1 to 3 ,
The lower bearing boss (10b) of the governor lever shaft (10) is disposed between the boss (11c) of the governor force input lever (11) and the upper boss (12a) of the spring force input lever (12). A horizontal diesel engine.
ガバナ力入力レバー(１１)のボス(１１ｃ)に上下一対の入力部(１１ａ)(１１ａ)を設け、この上下一対の入力部(１１ａ)(１１ａ)をガバナ力発生手段(７)の出力部(７ｃ)に当接させた、ことを特徴とする横型ディーゼルエンジン。 In the horizontal diesel engine according to any one of claims 1 to 4 ,
The boss (11c) of the governor force input lever (11) is provided with a pair of upper and lower input portions (11a) and (11a), and the pair of upper and lower input portions (11a) and (11a) are used as output portions of the governor force generating means (7). A horizontal diesel engine that is in contact with (7c).
ガバナ力入力レバー(１１)のボス(１１ｃ)の上下方向の寸法をガバナ軸(７ｄ)の外径寸法よりも大きくし、このボス(１１ｅ)の上下端部から突出させた上下一対の入力部(１１ａ)(１１ａ)を、ガバナ軸(７ｄ)の上下で、ガバナ力発生手段(７)の出力部(７ｃ)に当接させた、ことを特徴とする横型ディーゼルエンジン。 The horizontal diesel engine according to claim 5 ,
The vertical dimension of the boss (11c) of the governor force input lever (11) is made larger than the outer diameter dimension of the governor shaft (7d), and a pair of upper and lower input parts are projected from the upper and lower ends of the boss (11e). (11a) A horizontal diesel engine characterized in that (11a) is brought into contact with the output portion (7c) of the governor force generating means (7) above and below the governor shaft (7d).
ガバナ力発生手段(７)として球状のガバナウェイト(７ｂ)とスライダ(７ｅ)とを設け、スライダ(７ｅ)の斜面にガバナウェイト(７ｂ)を当接させ、遠心力で遠心方向に進出するガバナウェイト(７ｂ)で、スライダ(７ｅ)をガバナ軸(７ｄ)に沿って進出させるに当たり、ガバナウェイト(７ｂ)を３個以上並設させた、ことを特徴とする横型ディーゼルエンジン。 The horizontal diesel engine according to any one of claims 1 to 6 ,
A spherical governor weight (7b) and a slider (7e) are provided as governor force generating means (7), and the governor weight (7b) is brought into contact with the slope of the slider (7e), and the governor advances in the centrifugal direction by centrifugal force. A horizontal diesel engine comprising three or more governor weights (7b) arranged side by side when the slider (7e) is advanced along the governor shaft (7d) with the weight (7b).
ガバナケース(２)に固定したスプリング係止手段(２０)とガバナレバー(８)との間にアイドルスプリング(２１)を架設し、燃料調量部(９ａ)の低負荷側調量領域(１７ａ)では、アイドルスプリング力(２１ａ)とガバナスプリング力(１３ａ)とでガバナレバー(８)を燃料調量部(９ａ)の燃料増量側(Ｒ)に付勢し、低負荷側調量領域(１７ａ)を越える高負荷側調量領域(２２)では、ガバナレバー(８)にかかるアイドルスプリング力(２１ａ)がなくなり、ガバナスプリング力(１３ａ)だけでガバナレバー(８)を燃料調量部(９ａ)の燃料増量側(Ｒ)に付勢するようにした、ことを特徴とする横型ディーゼルエンジン。 In the horizontal diesel engine according to any one of claims 1 to 7 ,
An idle spring (21) is installed between the spring locking means (20) fixed to the governor case (2) and the governor lever (8), and the low load side metering region (17a) of the fuel metering unit (9a) is constructed. Then, the idler spring force (21a) and the governor spring force (13a) urge the governor lever (8) toward the fuel increase side (R) of the fuel metering section (9a), and the low load side metering region (17a). In the high load side metering region (22) exceeding the idling spring force (21a) applied to the governor lever (8), the governor lever (8) is moved to the fuel metering unit (9a) by the governor spring force (13a) alone. A horizontal diesel engine characterized by being urged toward the increasing side (R).
アイドルスプリング(２１)の先端にフック(２１ｂ)を設け、このフック(２１ｂ)の折り返し部(２１ｃ)をガバナレバー(８)のスプリング係合孔(８ａ)に摺動自在に挿通させ、燃料調量部(９ａ)の低負荷側調量領域(１７ａ)では、フック(２１ｂ)の折り曲げ部(２１ｄ)がガバナレバー(８)と係合し、高負荷側調量領域(２２)では、フック(２１ｂ)の折り曲げ部(２１ｄ)がガバナレバー(８)と係合しないようにした、ことを特徴とする横型ディーゼルエンジン。 The horizontal diesel engine according to claim 8 ,
A hook (21b) is provided at the tip of the idle spring (21), and the folded portion (21c) of the hook (21b) is slidably inserted into the spring engagement hole (8a) of the governor lever (8) to adjust the fuel amount. The bent portion (21d) of the hook (21b) engages with the governor lever (8) in the low load side metering region (17a) of the portion (9a), and the hook (21b) in the high load side metering region (22). The horizontal diesel engine is characterized in that the bent portion (21d) is not engaged with the governor lever (8).
燃料制限具(１６)の基端側に始動用スプリング(２３)を設け、始動用スプリング(２３)で燃料制限具(１６)をその先端方向に付勢し、ガバナ力(７ａ)の発生していないエンジン始動時に、調速レバー(１４)を高速位置に設定することにより、始動用スプリング力(２３ａ)に抗して、ガバナスプリング力(１３ａ)で燃料制限具(１６)をその基端方向に押し込み、燃料調量部(９ａ)を始動増量位置(２４)に位置させるようにした、ことを特徴とする横型ディーゼルエンジン。 The horizontal diesel engine according to any one of claims 1 to 9 ,
A starting spring (23) is provided on the base end side of the fuel restricting tool (16), and the starting spring (23) urges the fuel restricting tool (16) in the direction of the distal end to generate a governor force (7a). When the engine is not started, the governor lever (14) is set to a high speed position, so that the fuel limiter (16) is moved to its base end by the governor spring force (13a) against the starting spring force (23a). The horizontal diesel engine is characterized in that the fuel metering unit (9a) is pushed in the direction to be positioned at the start increasing position (24).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004086296A JP4164464B2 (en) | 2004-03-24 | 2004-03-24 | Horizontal diesel engine |
| CNB200410077906XA CN100410511C (en) | 2004-03-24 | 2004-09-17 | Horizontal diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004086296A JP4164464B2 (en) | 2004-03-24 | 2004-03-24 | Horizontal diesel engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2005273517A JP2005273517A (en) | 2005-10-06 |
| JP4164464B2 true JP4164464B2 (en) | 2008-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004086296A Expired - Fee Related JP4164464B2 (en) | 2004-03-24 | 2004-03-24 | Horizontal diesel engine |
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| Country | Link |
|---|---|
| JP (1) | JP4164464B2 (en) |
| CN (1) | CN100410511C (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061078B (en) * | 2013-03-21 | 2018-05-18 | 株式会社久保田 | The arrangements for speed regulation of engine |
| CN108644011A (en) * | 2018-04-10 | 2018-10-12 | 中国北方发动机研究所(天津) | A kind of novel high power to weight ratio vertical pivot diesel engine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3295296B2 (en) * | 1996-03-15 | 2002-06-24 | 株式会社クボタ | Monoblock engine |
| CN2423413Y (en) * | 2000-05-22 | 2001-03-14 | 江苏五菱柴油机股份有限公司 | Horizontal double-cylinder diesel engine |
| CN2495820Y (en) * | 2001-08-23 | 2002-06-19 | 山东巨菱股份有限公司 | Single cylinder, horizontal arranged and air cooling type diesel engine |
| CN2498339Y (en) * | 2001-09-07 | 2002-07-03 | 魏秀坤 | Automatic pressure-reducing device of horizontal diesel engine |
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2004
- 2004-03-24 JP JP2004086296A patent/JP4164464B2/en not_active Expired - Fee Related
- 2004-09-17 CN CNB200410077906XA patent/CN100410511C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1673503A (en) | 2005-09-28 |
| JP2005273517A (en) | 2005-10-06 |
| CN100410511C (en) | 2008-08-13 |
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