JP2007107388A - Engine driven working device - Google Patents

Engine driven working device Download PDF

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Publication number
JP2007107388A
JP2007107388A JP2005295949A JP2005295949A JP2007107388A JP 2007107388 A JP2007107388 A JP 2007107388A JP 2005295949 A JP2005295949 A JP 2005295949A JP 2005295949 A JP2005295949 A JP 2005295949A JP 2007107388 A JP2007107388 A JP 2007107388A
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Prior art keywords
engine
torsional vibration
vibration damper
driven
cooling
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Inventor
Toshikazu Shijo
敏和 紙上
Hiromoto Shimaya
宏基 嶋屋
Shinichiro Tochio
信一郎 栃尾
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Nishishiba Electric Co Ltd
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Nishishiba Electric Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an engine driven working device with a working machine to be successfully operated even during high load while effectively cooling a torsional vibration damper. <P>SOLUTION: The engine driven working device comprises an engine, the working machine to be driven by the engine, and a cooling fan for supplying cooling air to the engine and the working machine. The torsion vibration damper absorbs the torsional vibration of the engine and a cooling fan placed separately from the cooling fan cools the torsional vibration damper. Thus, the engine driven working device is provided with the working machine to be successfully operated even during high load while effectively cooling the torsional vibration damper for absorbing the torsional vibration of the engine. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、エンジン駆動作業装置に係り、特にエンジンねじり振動ダンパーをを備えたエンジン駆動作業装置に関する。   The present invention relates to an engine drive work device, and more particularly to an engine drive work device provided with an engine torsional vibration damper.

従来のエンジン駆動作業装置の概要を図１１および図１２を参照して説明する。
図１１はエンジン駆動作業装置の内部構成を上から見た図、図１２は側面から見た図である。図１１および図１２に示すように、従来のエンジン駆動作業装置は、エンジン１およびエンジン１によって駆動される作業機２と、エンジン１および作業機２を制御する制御盤３と、エンジン駆動作業機を構成する機器を収納し風雨から保護する筐体４を装備している。過給機５と空気冷却器６は必要に応じて装備するもので、ここでは説明の都合上表示する。放熱器７はエンジン冷却水の冷却に供する。 An outline of a conventional engine-driven work device will be described with reference to FIGS.
FIG. 11 is a view of the internal configuration of the engine-driven work device as viewed from above, and FIG. 12 is a view as viewed from the side. As shown in FIGS. 11 and 12, a conventional engine-driven work device includes an engine 1 and a work machine 2 driven by the engine 1, a control panel 3 that controls the engine 1 and the work machine 2, and an engine-driven work machine. It is equipped with a housing 4 that houses the equipment that constitutes and protects against wind and rain. The supercharger 5 and the air cooler 6 are provided as necessary, and are displayed here for convenience of explanation. The radiator 7 serves to cool the engine coolant.

また、ねじり振動ダンパー８はエンジン１のねじり振動を吸収し、エンジン１および作業機２がねじり振動によって破損されるのを防護している。作業機２はエンジン駆動作業装置が設置される場所および用途によって空気圧縮機、発電機、溶接機等が選択される。エンジン１には作業機２が接続されており所望の作業ができるようになっている。制御盤３はエンジン１および作業機２をエンジン駆動作業装置の状態に応じて適切な状態に保つ制御を行っている。筐体４はエンジン駆動作業装置を構成する機器を収納し、風雨から保護すると同時に、筐体４内に取り込まれた空気が適切な順路を通って排出されるように通風路の役割も兼ね備えている。図中の矢印は空気の流れを示している。   The torsional vibration damper 8 absorbs the torsional vibration of the engine 1 and protects the engine 1 and the work machine 2 from being damaged by the torsional vibration. As the work machine 2, an air compressor, a generator, a welder, or the like is selected depending on a place where the engine-driven work device is installed and an application. A work machine 2 is connected to the engine 1 so that a desired work can be performed. The control panel 3 performs control to keep the engine 1 and the work machine 2 in an appropriate state according to the state of the engine-driven work device. The housing 4 houses the equipment that constitutes the engine-driven work device, protects it from wind and rain, and at the same time has the role of a ventilation path so that the air taken into the housing 4 is discharged through an appropriate route. Yes. The arrows in the figure indicate the air flow.

エンジン駆動作業装置の従来例として、本発明者等が先に提案した特許文献１がある。この特許文献１に示すように、エンジン駆動作業装置の冷却構造としては、空気冷却器６および放熱器７を設置した空間と、エンジン１，作業機２および制御盤３を設置した空間を隔壁１７によって分離し、それぞれ冷却ファン９で冷却を行うようにしている。   As a conventional example of an engine-driven work device, there is Patent Document 1 previously proposed by the present inventors. As shown in Patent Document 1, as a cooling structure for an engine-driven work device, a space in which an air cooler 6 and a radiator 7 are installed and a space in which an engine 1, a work machine 2 and a control panel 3 are installed are divided into partition walls 17. And the cooling fan 9 is used for cooling.

冷却空気１０は筐体４の側面に設けられた空気取入口１１から吸込み、冷却ファン９により上方に排出される。同様に、冷却空気１２も空気取入口１３から吸込み、筐体４の上方に排出される。また、冷却空気１４は空気取入口１５から吸込み、作業機２、制御盤３、エンジン１を冷却して冷却空気１６となって筐体４の上方に排出される。   The cooling air 10 is sucked from an air intake port 11 provided on the side surface of the housing 4 and discharged upward by the cooling fan 9. Similarly, the cooling air 12 is also sucked from the air intake port 13 and discharged above the housing 4. In addition, the cooling air 14 is sucked from the air intake 15, the work machine 2, the control panel 3, and the engine 1 are cooled to become cooling air 16 and discharged above the housing 4.

しかしながら、上記構成のエンジン駆動作業装置においては、ねじり振動ダンパー８を積極的に冷却する構造となっていないため、エンジン１の出力を絞ることによってねじり振動ダンパー８の温度が上限を超えないようにしている。従って、高負荷等ねじり振動ダンパー８の温度が上限を超えそうな場合には必要な出力が得られず、作業機の動作に支障を招くという問題があった。
特願２００５−１４８０１９ However, the engine-driven work device having the above configuration does not have a structure that actively cools the torsional vibration damper 8, so that the temperature of the torsional vibration damper 8 does not exceed the upper limit by reducing the output of the engine 1. ing. Accordingly, when the temperature of the high load torsional vibration damper 8 is likely to exceed the upper limit, a necessary output cannot be obtained, which causes a problem in the operation of the work machine.
Japanese Patent Application No. 2005-148019

本発明は、上記事情に鑑みてなされたもので、その課題は、ねじり振動ダンパーを有効に冷却し、高負荷時等でも作業機が順調に動作するエンジン駆動作業装置を提供することにある。   The present invention has been made in view of the above circumstances, and an object thereof is to provide an engine-driven work device that effectively cools a torsional vibration damper and allows a work machine to operate smoothly even at high loads.

上記課題を解決するために、本発明の請求項１は、エンジンと、前記エンジンによって駆動される作業機と、前記エンジン及び前記作業機に冷却空気を供給する冷却ファンとを備えたエンジン駆動作業装置において、前記エンジンのねじり振動を吸収するねじり振動ダンパーを設け、前記ねじり振動ダンパーは前記冷却ファンとは別置き冷却ファンにて冷却することを特徴とする。   In order to solve the above-described problems, a first aspect of the present invention provides an engine-driven operation including an engine, a work machine driven by the engine, and a cooling fan that supplies cooling air to the engine and the work machine. In the apparatus, a torsional vibration damper that absorbs torsional vibration of the engine is provided, and the torsional vibration damper is cooled by a cooling fan separately from the cooling fan.

本発明の請求項２は、請求項１記載のエンジン駆動作業装置において、前記別置き冷却ファンを複数備え、多方向より前記ねじり振動ダンパーを冷却することを特徴とする。   According to a second aspect of the present invention, in the engine-driven work device according to the first aspect, a plurality of the separately placed cooling fans are provided, and the torsional vibration damper is cooled from multiple directions.

本発明の請求項３は、請求項１または２記載のエンジン駆動作業装置において、前記別置き冷却ファンの吸気側に出口を配置し、入口を外気に連通したダクトに設けたことを特徴とする。   According to a third aspect of the present invention, in the engine-driven work device according to the first or second aspect, an outlet is disposed on the intake side of the separately mounted cooling fan, and the inlet is provided in a duct communicating with the outside air. .

本発明の請求項４は、エンジンと、前記エンジンによって駆動される作業機と、前記エンジン及び前記作業機に冷却空気を供給する冷却ファンとを備えたエンジン駆動作業装置において、前記エンジンのねじり振動を吸収するねじり振動ダンパーを設け、前記ねじり振動ダンパーの周囲にダクトを配置して前記ねじり振動ダンパーを冷却することを特徴とする。   According to a fourth aspect of the present invention, there is provided an engine-driven work device including an engine, a work machine driven by the engine, and a cooling fan that supplies cooling air to the engine and the work machine. A torsional vibration damper that absorbs the vibration is provided, and a duct is disposed around the torsional vibration damper to cool the torsional vibration damper.

本発明の請求項５は、エンジンと、前記エンジンによって駆動される作業機と、前記エンジン及び前記作業機に冷却空気を供給する冷却ファンとを備えたエンジン駆動作業装置において、前記作業機を、発電機等の自身が冷却ファンを有する自己冷却作業機とし、当該自己冷却作業機の冷却排気によって前記エンジンのねじり振動を吸収するねじり振動ダンパーを冷却することを特徴とする。   Claim 5 of the present invention is an engine-driven work device comprising an engine, a work machine driven by the engine, and a cooling fan that supplies cooling air to the engine and the work machine. A self-cooling working machine having a cooling fan, such as a generator, is used, and a torsional vibration damper that absorbs torsional vibration of the engine is cooled by cooling exhaust of the self-cooling working machine.

本発明によれば、エンジンのねじり振動を吸収するねじり振動ダンパーを有効に冷却し、高負荷時等でも作業機が順調に動作するエンジン駆動作業装置を提供することができる。   ADVANTAGE OF THE INVENTION According to this invention, the engine drive working apparatus which can cool the torsional vibration damper which absorbs the torsional vibration of an engine effectively, and a working machine can operate | move smoothly also at the time of high load etc. can be provided.

以下、本発明を実施するための最良の形態を図を参照して説明する。
図１および図２は本発明の第１実施形態であるエンジン駆動作業装置の構成図であり、図１はエンジン駆動作業装置の内部構成を上から見た図、図２は側面から見た図である。 The best mode for carrying out the present invention will be described below with reference to the drawings.
1 and 2 are configuration diagrams of an engine-driven work device according to a first embodiment of the present invention. FIG. 1 is a view of the internal configuration of the engine-driven work device as viewed from above. FIG. It is.

本実施形態のエンジン駆動作業装置が従来のエンジン駆動作業装置である図１１および図１２と相違する構成は、ねじり振動ダンパー８の正面部分に別置きの冷却ファン１８を設置した点であり、その他の構成は同一であるので、同一構成部分は同一符号を符してその説明を省略する。   The engine drive working device of this embodiment is different from the conventional engine drive work device shown in FIGS. 11 and 12 in that a separate cooling fan 18 is installed on the front portion of the torsional vibration damper 8. Since the configuration is the same, the same components are denoted by the same reference numerals and the description thereof is omitted.

次に、本実施形態の作用について説明する。
エンジン駆動作業装置が稼働中は、冷却ファン９によって冷却空気１０，１２，１６は空気冷却器６および放熱器７を設置した空間に導入される。この時、冷却空気１６はエンジン１の側面を流れるため、ねじり振動ダンパー８の冷却にはほとんど寄与しない。しかしながら、別置きの冷却ファン１８が冷却空気１６とは関係なく直接ねじり振動ダンパー８を冷却するため、ねじり振動ダンパー８は有効に冷却される。 Next, the operation of this embodiment will be described.
While the engine drive working device is in operation, the cooling air 10, 12, 16 is introduced into the space where the air cooler 6 and the radiator 7 are installed by the cooling fan 9. At this time, since the cooling air 16 flows on the side surface of the engine 1, it hardly contributes to cooling the torsional vibration damper 8. However, since the separate cooling fan 18 directly cools the torsional vibration damper 8 regardless of the cooling air 16, the torsional vibration damper 8 is effectively cooled.

従って、本実施形態においては、エンジンのねじり振動を吸収するねじり振動ダンパーを有効に冷却するので、高負荷時等でも作業機が順調に動作するエンジン駆動作業装置を提供することができる。   Therefore, in the present embodiment, the torsional vibration damper that absorbs the torsional vibration of the engine is effectively cooled, so that it is possible to provide an engine-driven work device in which the work implement operates smoothly even at high loads.

図３および図４は本発明の第２実施形態であるエンジン駆動作業装置の構成図であり、図３はエンジン駆動作業装置の内部構成を上から見た図、図４は側面から見た図である。
本実施形態のエンジン駆動作業装置が第１実施形態のエンジン駆動作業装置と相違する構成は、ねじり振動ダンパー８の正面部分に別置きの冷却ファン群１９を設置し、多方向よりねじり振動ダンパー８を冷却するようにした点であり、その他の構成は同一であるので、同一構成部分は同一符号を符してその説明を省略する。 FIGS. 3 and 4 are configuration diagrams of an engine-driven work device according to a second embodiment of the present invention. FIG. 3 is a view of the internal configuration of the engine-driven work device as viewed from above. FIG. It is.
The engine drive working device of the present embodiment is different from the engine drive work device of the first embodiment in that a separate cooling fan group 19 is installed in the front portion of the torsional vibration damper 8 and the torsional vibration damper 8 is multidirectional. Since the other configurations are the same, the same components are denoted by the same reference numerals and the description thereof is omitted.

次に、本実施形態の作用について説明する。
本実施形態では、別置きの冷却ファン群１９が多方向より直接ねじり振動ダンパー８を冷却するため、ねじり振動ダンパー８はより有効に冷却される。 Next, the operation of this embodiment will be described.
In the present embodiment, the separate cooling fan group 19 directly cools the torsional vibration damper 8 from multiple directions, so that the torsional vibration damper 8 is cooled more effectively.

従って、本実施形態においては、エンジンのねじり振動を吸収するねじり振動ダンパーを有効に冷却するので、高負荷時等でも作業機が順調に動作するエンジン駆動作業装置を提供することができる。   Therefore, in the present embodiment, the torsional vibration damper that absorbs the torsional vibration of the engine is effectively cooled, so that it is possible to provide an engine-driven work device in which the work implement operates smoothly even at high loads.

図５および図６は本発明の第３実施形態であるエンジン駆動作業装置の構成図であり、図５はエンジン駆動作業装置の内部構成を上から見た図、図６は側面から見た図である。
本実施形態のエンジン駆動作業装置が第１実施形態のエンジン駆動作業装置と相違する構成は、別置きの冷却ファン１８の吸気側に出口を配置し、入口を外気に連通したダクト２０に設けた点であり、その他の構成は同一であるので、同一構成部分は同一符号を符してその説明を省略する。 FIGS. 5 and 6 are configuration diagrams of an engine-driven work device according to a third embodiment of the present invention. FIG. 5 is a view of the internal configuration of the engine-driven work device as viewed from above. FIG. It is.
The engine drive working device of the present embodiment is different from the engine drive work device of the first embodiment in that an outlet is disposed on the intake side of a separate cooling fan 18 and the inlet is provided in a duct 20 communicating with outside air. However, since the other configurations are the same, the same components are denoted by the same reference numerals and description thereof is omitted.

次に、本実施形態の作用について説明する。
本実施形態のエンジン駆動作業装置は、別置きの冷却ファン１８の吸気側に出口を配置し、入口を外気に連通したダクト２０に設けた構成に特徴があるので、外気から直接冷却空気２１がダクト２０内を通ってねじり振動ダンパー８を冷却するため、ねじり振動ダンパー８はより有効に冷却される。 Next, the operation of this embodiment will be described.
The engine-driven work device of this embodiment is characterized by a configuration in which an outlet is disposed on the intake side of a separate cooling fan 18 and the inlet is provided in a duct 20 that communicates with the outside air. Since the torsional vibration damper 8 is cooled through the duct 20, the torsional vibration damper 8 is cooled more effectively.

従って、本実施形態においては、エンジンのねじり振動を吸収するねじり振動ダンパーを有効に冷却するので、高負荷時等でも作業機が順調に動作するエンジン駆動作業装置を提供することができる。   Therefore, in the present embodiment, the torsional vibration damper that absorbs the torsional vibration of the engine is effectively cooled, so that it is possible to provide an engine-driven work device in which the work implement operates smoothly even at high loads.

図７および図８は本発明の第４実施形態であるエンジン駆動作業装置の構成図であり、図７はエンジン駆動作業装置の内部構成を上から見た図、図８は側面から見た図である。
本実施形態のエンジン駆動作業装置が第１実施形態のエンジン駆動作業装置と相違する構成は、ねじり振動ダンパー８の周囲にダクト２２を配置してねじり振動ダンパー８を積極的に冷却するようにした点であり、その他の構成は同一であるので、同一構成部分は同一符号を符してその説明を省略する。 7 and 8 are configuration diagrams of an engine-driven work device according to a fourth embodiment of the present invention. FIG. 7 is a view of the internal configuration of the engine-driven work device as viewed from above. FIG. It is.
The configuration in which the engine-driven work device of this embodiment is different from the engine-driven work device of the first embodiment is that the torsional vibration damper 8 is actively cooled by arranging a duct 22 around the torsional vibration damper 8. However, since the other configurations are the same, the same components are denoted by the same reference numerals and description thereof is omitted.

次に、本実施形態の作用について説明する。
本実施形態のエンジン駆動作業装置が稼働中は、冷却ファン９によって冷却空気１０，１２，１６は空気冷却器６および放熱器７を設置した空間に導入される。この時、冷却空気１６はエンジン１の側面を流れ、さらにダクト２２に沿ってねじり振動ダンパー８を直接冷却しながら流れる。 Next, the operation of this embodiment will be described.
During operation of the engine-driven work device of this embodiment, the cooling air 10, 12, 16 is introduced into the space where the air cooler 6 and the radiator 7 are installed by the cooling fan 9. At this time, the cooling air 16 flows along the side surface of the engine 1 and further flows along the duct 22 while directly cooling the torsional vibration damper 8.

従って、本実施形態においては、エンジンのねじり振動を吸収するねじり振動ダンパーを有効に冷却するので、高負荷時等でも作業機が順調に動作するエンジン駆動作業装置を提供することができる。   Therefore, in the present embodiment, the torsional vibration damper that absorbs the torsional vibration of the engine is effectively cooled, so that it is possible to provide an engine-driven work device in which the work implement operates smoothly even at high loads.

図９および図１０は本発明の第５実施形態であるエンジン駆動作業装置の構成図であり、図９はエンジン駆動作業装置の内部構成を上から見た図、図１０は側面から見た図である。
本実施形態のエンジン駆動作業装置が第１実施形態のエンジン駆動作業装置と相違する構成は、作業機を、例えば発電機等のそれ自体が備えた図示しない冷却ファンを有する自己冷却作業機２３とし、自己冷却作業機２３の冷却排気出口に排気ダクト２４を設け、排気ダクト２４の出口をねじり振動ダンパー８に対向した点であり、その他の構成は同一であるので、同一構成部分は同一符号を符してその説明を省略する。 FIG. 9 and FIG. 10 are configuration diagrams of an engine-driven work device according to a fifth embodiment of the present invention, FIG. 9 is a view of the internal configuration of the engine-driven work device from above, and FIG. It is.
The configuration in which the engine-driven work device of this embodiment is different from the engine-driven work device of the first embodiment is that the work machine is a self-cooling work machine 23 having a cooling fan (not shown) provided in itself such as a generator. The exhaust duct 24 is provided at the cooling exhaust outlet of the self-cooling work machine 23, and the outlet of the exhaust duct 24 is opposed to the torsional vibration damper 8. The other components are the same. The description is omitted.

次に、本実施形態の作用について説明する。
本実施形態のエンジン駆動作業装置が稼働中は、自己冷却作業機２３は作業機冷却空気２５を冷却吸気入口より吸気する。作業機冷却空気２５は自己冷却作業機２３を冷却し、冷却排気出口から排気ダクト２４を通ってねじり振動ダンパー８を直接冷却する。 Next, the operation of this embodiment will be described.
While the engine-driven work device of the present embodiment is in operation, the self-cooling work machine 23 sucks the work machine cooling air 25 from the cooling intake port. The work machine cooling air 25 cools the self-cooling work machine 23 and directly cools the torsional vibration damper 8 from the cooling exhaust outlet through the exhaust duct 24.

従って、本実施形態においては、エンジンのねじり振動を吸収するねじり振動ダンパーを有効に冷却するので、高負荷時等でも作業機が順調に動作するエンジン駆動作業装置を提供することができる。   Therefore, in the present embodiment, the torsional vibration damper that absorbs the torsional vibration of the engine is effectively cooled, so that it is possible to provide an engine-driven work device in which the work implement operates smoothly even at high loads.

本発明の第１の実施形態のエンジン駆動作業装置を上方から見た図。The figure which looked at the engine drive work device of a 1st embodiment of the present invention from the upper part. 図１のエンジン駆動作業装置を側面から見た図。The figure which looked at the engine drive work apparatus of FIG. 1 from the side. 本発明の第２の実施形態のエンジン駆動作業装置を上方から見た図。The figure which looked at the engine drive work apparatus of the 2nd Embodiment of this invention from upper direction. 図３のエンジン駆動作業装置を側面から見た図。The figure which looked at the engine drive work apparatus of FIG. 3 from the side. 本発明の第３の実施形態のエンジン駆動作業装置を上方から見た図。The figure which looked at the engine drive work apparatus of the 3rd Embodiment of this invention from upper direction. 図５のエンジン駆動作業装置を側面から見た図。The figure which looked at the engine drive work apparatus of FIG. 5 from the side. 本発明の第４の実施形態のエンジン駆動作業装置を上方から見た図。The figure which looked at the engine drive work apparatus of the 4th Embodiment of this invention from upper direction. 図７のエンジン駆動作業装置を側面から見た図。The figure which looked at the engine drive work apparatus of FIG. 7 from the side. 本発明の第５の実施形態のエンジン駆動作業装置を上方から見た図。The figure which looked at the engine drive work apparatus of the 5th Embodiment of this invention from upper direction. 図９のエンジン駆動作業装置を側面から見た図。The figure which looked at the engine drive work apparatus of FIG. 9 from the side. 従来のエンジン駆動作業装置を上方から見た図。The figure which looked at the conventional engine drive working device from the upper part. 図１１の従来のエンジン駆動作業装置を側面から見た図。The figure which looked at the conventional engine drive working apparatus of FIG. 11 from the side.

符号の説明Explanation of symbols

１…エンジン、２…作業機、３…制御盤、４…筐体、５…過給機、６…空気冷却器、７…放熱器、８…ねじり振動ダンパー、９…冷却ファン、１０…冷却空気（空気冷却器側）、１１…冷却空気取入口（空気冷却器用）、１２…冷却空気（放熱器側）、１３…冷却空気取入口（空気冷却器用）、１４…冷却空気（エンジン・作業機用）、１５…冷却空気取入口（エンジン・作業機用）、１６…冷却空気（エンジン・作業機冷却済）、１７…隔壁、１８…別置きの冷却ファン、１９…別置きの冷却ファン群、２０…ダクト、２１…冷却空気（別置きの冷却ファン用）、２２ダクト（ねじり振動ダンパー用）、２３…自己冷却作業機、２４…排気ダクト、２５…作業機冷却空気。

DESCRIPTION OF SYMBOLS 1 ... Engine, 2 ... Working machine, 3 ... Control panel, 4 ... Housing, 5 ... Supercharger, 6 ... Air cooler, 7 ... Radiator, 8 ... Torsional vibration damper, 9 ... Cooling fan, 10 ... Cooling Air (air cooler side), 11 ... Cooling air inlet (for air cooler), 12 ... Cooling air (heat radiator side), 13 ... Cooling air inlet (for air cooler), 14 ... Cooling air (engine / work) 15) Cooling air intake (for engine / working machine), 16 ... Cooling air (engine / working machine cooled), 17 ... Partition, 18 ... Separate cooling fan, 19 ... Separate cooling fan Group, 20 ... duct, 21 ... cooling air (for a separate cooling fan), 22 duct (for torsional vibration damper), 23 ... self-cooling work machine, 24 ... exhaust duct, 25 ... work machine cooling air.

Claims (5)

エンジンと、前記エンジンによって駆動される作業機と、前記エンジン及び前記作業機に冷却空気を供給する冷却ファンとを備えたエンジン駆動作業装置において、前記エンジンのねじり振動を吸収するねじり振動ダンパーを設け、前記ねじり振動ダンパーは前記冷却ファンとは別置き冷却ファンにて冷却することを特徴とするエンジン駆動作業装置。   An engine-driven work device comprising an engine, a work machine driven by the engine, and a cooling fan that supplies cooling air to the engine and the work machine, wherein a torsional vibration damper that absorbs torsional vibration of the engine is provided The torsional vibration damper is cooled by a cooling fan separately from the cooling fan. 請求項１記載のエンジン駆動作業装置において、前記別置き冷却ファンを複数備え、多方向より前記ねじり振動ダンパーを冷却することを特徴とするエンジン駆動作業装置。   2. The engine-driven work apparatus according to claim 1, wherein a plurality of the separately placed cooling fans are provided to cool the torsional vibration damper from multiple directions. 請求項１または２記載のエンジン駆動作業装置において、前記別置き冷却ファンの吸気側に出口を配置し、入口を外気に連通したダクトに設けたことを特徴とするエンジン駆動作業装置。   The engine-driven work device according to claim 1 or 2, wherein an outlet is disposed on an intake side of the separately mounted cooling fan, and the inlet is provided in a duct communicating with outside air. エンジンと、前記エンジンによって駆動される作業機と、前記エンジン及び前記作業機に冷却空気を供給する冷却ファンとを備えたエンジン駆動作業装置において、前記エンジンのねじり振動を吸収するねじり振動ダンパーを設け、前記ねじり振動ダンパーの周囲にダクトを配置して前記ねじり振動ダンパーを冷却することを特徴とするエンジン駆動作業装置。   An engine-driven work device comprising an engine, a work machine driven by the engine, and a cooling fan that supplies cooling air to the engine and the work machine, wherein a torsional vibration damper that absorbs torsional vibration of the engine is provided An engine-driven work device, wherein a duct is disposed around the torsional vibration damper to cool the torsional vibration damper. エンジンと、前記エンジンによって駆動される作業機と、前記エンジン及び前記作業機に冷却空気を供給する冷却ファンとを備えたエンジン駆動作業装置において、前記作業機を、発電機等の自身が冷却ファンを有する自己冷却作業機とし、当該自己冷却作業機の冷却排気によって前記エンジンのねじり振動を吸収するねじり振動ダンパーを冷却することを特徴とするエンジン駆動作業装置。

An engine-driven work device comprising an engine, a work machine driven by the engine, and a cooling fan that supplies cooling air to the engine and the work machine, wherein the work machine itself is a cooling fan. And a torsional vibration damper that absorbs the torsional vibration of the engine by cooling and exhaust of the self-cooling work machine.

JP2005295949A 2005-10-11 2005-10-11 Engine driven working device Pending JP2007107388A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8232660B2 (en) 2007-11-12 2012-07-31 Honda Motor Co., Ltd. Soundproof enclosed type generator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8232660B2 (en) 2007-11-12 2012-07-31 Honda Motor Co., Ltd. Soundproof enclosed type generator

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