JP4533302B2 - Engine working machine - Google Patents

Engine working machine Download PDF

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Publication number
JP4533302B2
JP4533302B2 JP2005341413A JP2005341413A JP4533302B2 JP 4533302 B2 JP4533302 B2 JP 4533302B2 JP 2005341413 A JP2005341413 A JP 2005341413A JP 2005341413 A JP2005341413 A JP 2005341413A JP 4533302 B2 JP4533302 B2 JP 4533302B2
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fuel
engine
fuel tank
fuel supply
working machine
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JP2007146735A (en
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功雄 赤塚
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Nippon Sharyo Ltd
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Nippon Sharyo Ltd
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Description

本発明は、エンジン作業機に係り、詳しくは、連結管で連結した高さの異なる複数の燃料タンクを備えたエンジン作業機に関する。   The present invention relates to an engine working machine, and more particularly, to an engine working machine including a plurality of fuel tanks connected by connecting pipes and having different heights.

エンジンと、該エンジンにより駆動する発電機や圧縮機等の作業機本体と、前記エンジンに燃料を供給する燃料タンクとを備えたエンジン作業機は、近年、トレーラー等に搭載可能なように小型化、省スペース化が図られている。一方、無給油での運転時間を増加させるとともに、燃料補給の手間を省くために、燃料タンクの容量を増加させることが望まれ、複数の燃料タンクを装備したエンジン作業機が提案されている（例えば、引用文献１参照。）。
実用新案登録第３０６８１１１号公報 An engine working machine including an engine, a working machine body such as a generator or a compressor driven by the engine, and a fuel tank for supplying fuel to the engine has been downsized so that it can be mounted on a trailer or the like in recent years. Space saving is achieved. On the other hand, it is desired to increase the capacity of the fuel tank in order to increase the operation time without fueling and save the labor of refueling, and an engine working machine equipped with a plurality of fuel tanks has been proposed ( For example, see cited document 1.)
Utility Model Registration No. 3068111

しかし、上述のように複数の燃料タンクを装備したエンジン作業機では、エンジン作業機の内部スペースに合わせて各燃料タンクの設置位置が決められることから、その形状や高さが異なることがあった。燃料タンクの高さが異なると、その上部に設けられる燃料供給部の先端開口部の高さも異なることから、高さの低い燃料タンクの燃料供給部から燃料を補給すると、高さの高い燃料タンクを満タンにすることができず、また、高さの高い燃料タンクの燃料供給部から燃料を補給すると、高さの低い燃料タンクの燃料供給部から燃料が溢れる虞があった。   However, in an engine working machine equipped with a plurality of fuel tanks as described above, the installation position of each fuel tank is determined in accordance with the internal space of the engine working machine, so the shape and height may differ. . If the height of the fuel tank is different, the height of the opening of the tip of the fuel supply unit provided on the upper part of the fuel tank is also different. If the fuel is supplied from the fuel supply part of the fuel tank having a high height, the fuel may overflow from the fuel supply part of the fuel tank having a low height.

そこで本発明は、高さの低い燃料タンクの燃料供給部から燃料を補給した時に、高さの低い燃料タンクと高さの高い燃料タンクの双方を満タンにすることができ、また、高さの高い燃料タンクの燃料供給部から燃料を補給した時に、高さの低い燃料タンクから燃料が溢れる虞のないエンジン作業機を提供することを目的としている。   Therefore, the present invention can fill both the low fuel tank and the high fuel tank when the fuel is supplied from the fuel supply section of the low fuel tank. An object of the present invention is to provide an engine working machine that does not cause a fuel to overflow from a fuel tank having a low height when fuel is supplied from a fuel supply section of a high fuel tank.

上記の目的を達成するため本発明は、エンジンと、該エンジンにより駆動する作業機本体と、前記エンジンに燃料を供給する高さの異なる複数の燃料タンクと、該複数の燃料タンクの下部同士を連通させる連通管とを備え、前記複数の燃料タンクの上部に燃料供給部をそれぞれ設えたエンジン作業機において、高さの低い燃料タンクの前記燃料供給部に延長管を着脱可能に連結し、該延長管の先端開口部と、前記高さの高い燃料タンクの燃料供給部の先端開口部とを同一の高さとしたことを特徴とし、前記高さの低い燃料タンクの燃料供給部と前記延長管とを螺着しても良く、また、前記燃料供給部の先端部と、前記延長管の基端部とにフランジ部をそれぞれ形成し、両フランジ部をボルトで連結させることもできる。 To achieve the above object, the present invention provides an engine, a work machine body driven by the engine, a plurality of fuel tanks having different heights for supplying fuel to the engine, and lower portions of the plurality of fuel tanks. An engine working machine comprising a plurality of fuel tanks each having a fuel supply portion provided at an upper portion of the plurality of fuel tanks, wherein an extension pipe is detachably connected to the fuel supply portion of the fuel tank having a low height, The extension opening of the extension pipe and the extension opening of the fuel supply section of the fuel tank having the high height have the same height, the fuel supply section of the fuel tank having the low height and the extension pipe Further, a flange portion may be formed at each of the distal end portion of the fuel supply portion and the proximal end portion of the extension pipe, and both flange portions may be connected by bolts.

上述のように構成することによって、高さの低い燃料タンクの燃料供給部に延長管を連結し、該延長管の先端開口部と、高さの高い燃料タンクの燃料供給部の先端開口部の高さを同一高さとすることにより、高さの低い燃料タンクの燃料供給部から燃料を補給した時に、高さの低い燃料タンクと高さの高い燃料タンクの双方を満タンすることができ、また、高さの高い燃料タンクの燃料供給部から燃料を補給た時に、高さの低い燃料タンクから燃料が溢れる虞がない。   By configuring as described above, the extension pipe is connected to the fuel supply part of the fuel tank having a low height, and the tip opening part of the extension pipe and the tip opening part of the fuel supply part of the fuel tank having a high height are connected. By making the height the same, when fuel is replenished from the fuel supply part of the low fuel tank, both the low fuel tank and the high fuel tank can be filled, Further, when fuel is supplied from the fuel supply part of the fuel tank having a high height, there is no possibility that the fuel will overflow from the fuel tank having a low height.

また、延長管は、燃料供給部に螺着したり、燃料供給部の先端部と延長管の基端部とに設けたフランジ部を連結して取り付けることにより、燃料供給部に着脱可能となり、高さの高い燃料タンクに合わせた延長管を取り付けることにより、先端開口部の高さを簡便に調整することができ、また、燃料タンクに燃料を補給するとき以外は、外しておくこともできる。   In addition, the extension pipe can be attached to and detached from the fuel supply section by being screwed to the fuel supply section or by connecting and attaching a flange portion provided at the distal end portion of the fuel supply section and the base end portion of the extension pipe. By attaching an extension pipe that matches the height of the fuel tank, the height of the opening at the tip can be easily adjusted. It can also be removed except when refueling the fuel tank. .

以下、本発明の一形態例を図面に基づいて詳しく説明する。図１は燃料タンクの正面図、図２は燃料タンクの平面図、図３はエンジン作業機の説明図である。   Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. 1 is a front view of the fuel tank, FIG. 2 is a plan view of the fuel tank, and FIG. 3 is an explanatory view of the engine working machine.

本形態例のエンジン作業機１は、エンジン駆動型発電機で、ディーゼルエンジン２と、該ディーゼルエンジン２により駆動する発電機３と、ディーゼルエンジン２に燃料を供給する２つの燃料タンク４，５とを備えている。燃料タンク４，５は、エンジン作業機１の内部スペースに合わせて一方の燃料タンク４の高さを高く、他方の燃料タンク５の高さを低く形成したもので、両燃料タンク４，５は、下部に設けられた連結管６によって連結されている。   The engine working machine 1 of this embodiment is an engine-driven generator, which is a diesel engine 2, a generator 3 driven by the diesel engine 2, and two fuel tanks 4 and 5 for supplying fuel to the diesel engine 2. It has. The fuel tanks 4 and 5 are formed such that the height of one fuel tank 4 is increased and the height of the other fuel tank 5 is decreased in accordance with the internal space of the engine working machine 1. Are connected by a connecting pipe 6 provided in the lower part.

高さの高い燃料タンク４は、上部に燃料を供給するための燃料供給部７を備え、該燃料供給部７の近傍にはレベルゲージ８と、エンジン２に接続した燃料供給パイプ９とが設けられている。高さの低い燃料タンク５は、上部に燃料の燃料供給部１０を備え、該燃料供給部１０には延長管１１が取り付けられている。前記燃料供給部１０の内周面には雌ねじ部１０ａが形成され、また、延長管１１の基端側外周面には、雌ねじ部１０ａに螺着される雄ねじ部１１ａが形成され、延長管１１は燃料供給部１０に着脱可能に螺着される。さらに、燃料供給部７と延長管１１とには、各先端開口部７ａ，１１ｂを覆う有孔キャップ７ｂ，１１ｃがそれぞれ被着されている。   The fuel tank 4 having a high height includes a fuel supply unit 7 for supplying fuel to an upper portion thereof, and a level gauge 8 and a fuel supply pipe 9 connected to the engine 2 are provided in the vicinity of the fuel supply unit 7. It has been. The fuel tank 5 having a low height is provided with a fuel supply unit 10 for fuel at the top, and an extension pipe 11 is attached to the fuel supply unit 10. A female screw portion 10 a is formed on the inner peripheral surface of the fuel supply portion 10, and a male screw portion 11 a that is screwed to the female screw portion 10 a is formed on the outer peripheral surface of the proximal end side of the extension tube 11. Is detachably screwed to the fuel supply unit 10. Furthermore, perforated caps 7b and 11c are attached to the fuel supply section 7 and the extension pipe 11, respectively, covering the tip openings 7a and 11b.

このように形成されたエンジン作業機１では、連結管６で連結された燃料タンク４，５に燃料を補給する際に、高さの高い燃料タンク４の燃料供給部７から燃料を補給する場合では、燃料タンク４を満タンにしても、前記燃料供給部７の先端開口部７ａの高さと、延長管１１の先端開口部１１ｂの高さとが同じ高さになるように設定されていることから、延長管１１の先端開口部１１ｂから燃料が溢れる虞がない。また、延長管１１から燃料を補給する場合でも、高さの高い燃料タンク４と高さの低い燃料タンク５の双方を満タンにすることができる。   In the engine working machine 1 thus formed, when fuel is supplied to the fuel tanks 4 and 5 connected by the connecting pipe 6, the fuel is supplied from the fuel supply unit 7 of the fuel tank 4 having a high height. Then, even when the fuel tank 4 is full, the height of the tip opening 7a of the fuel supply unit 7 and the height of the tip opening 11b of the extension pipe 11 are set to be the same height. Therefore, there is no possibility that the fuel overflows from the tip opening 11b of the extension pipe 11. Even when fuel is supplied from the extension pipe 11, both the high fuel tank 4 and the low fuel tank 5 can be filled up.

なお、本発明のエンジン作業機は上述の形態例のようにエンジン駆動型発電機に限らず、エンジン駆動型圧縮機でも良い。また、高さの低い燃料タンクの燃料供給部と延長管とは、延長管に雌ねじ部を、燃料供給部に雄ねじ部をそれぞれ設けて螺着させるものでもよく、さらに、螺着するものに限らず、燃料供給部の先端部と、前記延長管の基端部とにフランジ部をそれぞれ形成し、両フランジ部をボルトで連結するようにしても良い。さらに、燃料を補給する補給側が一方の燃料タンクに固定される場合は、他方の燃料供給部又は燃料供給部に取り付けた延長管の先端開口部を、一方の燃料供給部又は燃料供給部に取り付けた延長管の先端開口部よりも高くしておけばよい。   The engine working machine according to the present invention is not limited to the engine-driven generator as in the above-described embodiments, but may be an engine-driven compressor. Further, the fuel supply portion and the extension pipe of the fuel tank having a low height may be screwed by providing a female screw portion on the extension pipe and a male screw portion on the fuel supply portion, respectively, and are not limited to those screwed. Instead, a flange portion may be formed at each of the distal end portion of the fuel supply portion and the proximal end portion of the extension pipe, and both flange portions may be connected by bolts. Further, when the replenishment side for replenishing fuel is fixed to one fuel tank, the other fuel supply part or the opening of the extension pipe attached to the fuel supply part is attached to one fuel supply part or fuel supply part. It should be higher than the tip opening of the extension tube.

本発明の一形態例を示す燃料タンクの正面図である。It is a front view of the fuel tank which shows one form of this invention. 同じく燃料タンクの平面図である。It is a top view of a fuel tank similarly. 同じくエンジン作業機の説明図である。It is explanatory drawing of an engine working machine similarly.

符号の説明Explanation of symbols

１…エンジン作業機、２…ディーゼルエンジン、３…発電機、４，５…燃料タンク、６…連結管、７，１０…燃料供給部、７ａ…先端開口部、７ｂ，１１ｃ…有孔キャップ、８…レベルゲージ、９…燃料供給パイプ、１０ａ…雌ねじ部、１１…延長管、１１ａ…雄ねじ部、１１ｂ…先端開口部   DESCRIPTION OF SYMBOLS 1 ... Engine working machine, 2 ... Diesel engine, 3 ... Generator, 4, 5 ... Fuel tank, 6 ... Connection pipe, 7, 10 ... Fuel supply part, 7a ... Tip opening part, 7b, 11c ... Perforated cap, DESCRIPTION OF SYMBOLS 8 ... Level gauge, 9 ... Fuel supply pipe, 10a ... Female thread part, 11 ... Extension pipe, 11a ... Male thread part, 11b ... Tip opening part

Claims (3)

エンジンと、該エンジンにより駆動する作業機本体と、前記エンジンに燃料を供給する高さの異なる複数の燃料タンクと、該複数の燃料タンクの下部同士を連通させる連通管とを備え、前記複数の燃料タンクの上部に燃料供給部をそれぞれ設えたエンジン作業機において、高さの低い燃料タンクの前記燃料供給部に延長管を着脱可能に連結し、該延長管の先端開口部と、前記高さの高い燃料タンクの燃料供給部の先端開口部とを同一の高さとしたことを特徴とするエンジン作業機。 An engine, a work machine main body driven by the engine, a plurality of fuel tanks having different heights for supplying fuel to the engine, and a communication pipe for communicating lower portions of the plurality of fuel tanks, In an engine working machine provided with a fuel supply unit at the upper part of the fuel tank, an extension pipe is detachably connected to the fuel supply part of the fuel tank having a low height, and the tip opening of the extension pipe and the height An engine work machine characterized in that a fuel supply part of a high fuel tank has the same opening at the front end. 前記高さの低い燃料タンクの燃料供給部と前記延長管とを螺着したことを特徴とする請求項１記載のエンジン作業機。 The engine working machine according to claim 1, wherein a fuel supply part of the fuel tank having the low height and the extension pipe are screwed together. 前記燃料供給部の先端部と、前記延長管の基端部とにフランジ部をそれぞれ形成し、両フランジ部をボルトで連結したことを特徴とする請求項１記載のエンジン作業機。 The engine working machine according to claim 1, wherein flange portions are respectively formed at a distal end portion of the fuel supply portion and a proximal end portion of the extension pipe, and both flange portions are connected by bolts.
JP2005341413A 2005-11-28 2005-11-28 Engine working machine Expired - Fee Related JP4533302B2 (en)

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53118915U (en) * 1977-03-01 1978-09-21
JPS6245930Y2 (en) * 1981-10-29 1987-12-09
JPS6396929U (en) * 1986-12-16 1988-06-23
JPH07119571A (en) * 1993-10-26 1995-05-09 Toyota Motor Corp Fuel additive supplying device
JPH10325371A (en) * 1997-05-27 1998-12-08 Kubota Corp Tank for liquid
JPH11245677A (en) * 1998-03-05 1999-09-14 Hitachi Constr Mach Co Ltd Fuel tank device for construction machine
JPH11245676A (en) * 1998-03-05 1999-09-14 Hitachi Constr Mach Co Ltd Fuel tank device for construction machine
JP2000045889A (en) * 1998-07-31 2000-02-15 Nissan Motor Co Ltd Evaporated fuel processing device for fuel tank
JP2000142128A (en) * 1998-11-10 2000-05-23 Hitachi Constr Mach Co Ltd Fuel tank device of construction machine
JP2005306108A (en) * 2004-04-19 2005-11-04 Sumitomo (Shi) Construction Machinery Manufacturing Co Ltd Fuel tank of construction machine

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53118915U (en) * 1977-03-01 1978-09-21
JPS6245930Y2 (en) * 1981-10-29 1987-12-09
JPS6396929U (en) * 1986-12-16 1988-06-23
JPH07119571A (en) * 1993-10-26 1995-05-09 Toyota Motor Corp Fuel additive supplying device
JPH10325371A (en) * 1997-05-27 1998-12-08 Kubota Corp Tank for liquid
JPH11245677A (en) * 1998-03-05 1999-09-14 Hitachi Constr Mach Co Ltd Fuel tank device for construction machine
JPH11245676A (en) * 1998-03-05 1999-09-14 Hitachi Constr Mach Co Ltd Fuel tank device for construction machine
JP2000045889A (en) * 1998-07-31 2000-02-15 Nissan Motor Co Ltd Evaporated fuel processing device for fuel tank
JP2000142128A (en) * 1998-11-10 2000-05-23 Hitachi Constr Mach Co Ltd Fuel tank device of construction machine
JP2005306108A (en) * 2004-04-19 2005-11-04 Sumitomo (Shi) Construction Machinery Manufacturing Co Ltd Fuel tank of construction machine

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