JPH01173461U - - Google Patents
Info
- Publication number
- JPH01173461U JPH01173461U JP6848788U JP6848788U JPH01173461U JP H01173461 U JPH01173461 U JP H01173461U JP 6848788 U JP6848788 U JP 6848788U JP 6848788 U JP6848788 U JP 6848788U JP H01173461 U JPH01173461 U JP H01173461U
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- auxiliary tank
- engine
- feed pump
- tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000446 fuel Substances 0.000 claims description 11
- 239000002828 fuel tank Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims 2
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Component Parts Of Construction Machinery (AREA)
Description
第１図はこの考案にかかる燃料回路をそなえた
ホイール式シヨベルの側面図、第２図はこの考案
にかかる燃料回路を示す図、第３図はこの考案に
かかる燃料回路の他実施例補助タンクを示す図、
第４図は従来技術ホイール式シヨベルの側面図、
第５図は第４図のＡより見た要部断面平面図、第
６図は従来技術燃料回路を示す図である。
１，１７……ホイール式シヨベル、２，１８…
…下部走行体、３，１９……上部旋回体、５，５
′……エンジン、８，２１……燃料タンク、１０
，２２……旋回ジヨイント、１１，１６……燃料
回路、１２……フイードポンプ、２３……補助タ
ンク、２４……燃料フイードポンプ。
Fig. 1 is a side view of a wheeled shovel equipped with a fuel circuit according to this invention, Fig. 2 is a diagram showing a fuel circuit according to this invention, and Fig. 3 is an auxiliary tank with other embodiments of the fuel circuit according to this invention. A diagram showing
Figure 4 is a side view of a conventional wheel type shovel.
FIG. 5 is a cross-sectional plan view of the main part seen from A in FIG. 4, and FIG. 6 is a diagram showing a conventional fuel circuit. 1,17...wheel shovel, 2,18...
...Lower traveling body, 3,19...Upper rotating body, 5,5
'... Engine, 8, 21... Fuel tank, 10
, 22... Swivel joint, 11, 16... Fuel circuit, 12... Feed pump, 23... Auxiliary tank, 24... Fuel feed pump.
Claims (1)
上部旋回体を設け、その上部旋回体にエンジンを
搭載し、かつ下部走行体にエンジン用燃料タンク
を配置した建設機械において、上部旋回体に補助
タンクを設け、かつ下部走行体に強制供給用燃料
フイードポンプを設け、その燃料フイードポンプ
と上記補助タンクとを旋回ジヨイントおよび逆止
弁を介して連通し、さらに補助タンクと、エンジ
ンに付設されているフイードポンプとを連通し、
一方、エンジン燃料噴射時における燃料オーバフ
ロー分を上記補助タンクにリターン可能に設定す
るとともに、補助タンクのリターン側ポートと燃
料タンクとを旋回ジヨイントを介し連通して構成
したことを特徴とする建設機械の燃料回路。 A construction machine in which an upper rotating body is provided on the lower traveling body so as to be able to rotate via a swing connection part, an engine is mounted on the upper rotating body, and a fuel tank for the engine is disposed on the lower traveling body. An auxiliary tank is provided, and a forced supply fuel feed pump is provided on the lower traveling body, the fuel feed pump and the auxiliary tank communicate with each other via a swing joint and a check valve, and the auxiliary tank and the engine are attached. communicate with the feed pump,
On the other hand, a construction machine is provided, characterized in that the fuel overflow during engine fuel injection is set so that it can be returned to the auxiliary tank, and the return side port of the auxiliary tank and the fuel tank are communicated via a turning joint. fuel circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6848788U JPH01173461U (en) | 1988-05-23 | 1988-05-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6848788U JPH01173461U (en) | 1988-05-23 | 1988-05-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01173461U true JPH01173461U (en) | 1989-12-08 |
Family
ID=31293802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6848788U Pending JPH01173461U (en) | 1988-05-23 | 1988-05-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01173461U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2241681A1 (en) | 2009-04-14 | 2010-10-20 | Liebherr-Hydraulikbagger GmbH | Excavator |
| JP2010236287A (en) * | 2009-03-31 | 2010-10-21 | Hitachi Constr Mach Co Ltd | Fuel circuit of work machine |
| JP2011032817A (en) * | 2009-08-05 | 2011-02-17 | Hitachi Constr Mach Co Ltd | Fuel supply device of construction machine |
| JP2013249751A (en) * | 2012-05-30 | 2013-12-12 | Kobelco Cranes Co Ltd | Fuel supply discharge mechanism of travelling crane |
-
1988
- 1988-05-23 JP JP6848788U patent/JPH01173461U/ja active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010236287A (en) * | 2009-03-31 | 2010-10-21 | Hitachi Constr Mach Co Ltd | Fuel circuit of work machine |
| EP2241681A1 (en) | 2009-04-14 | 2010-10-20 | Liebherr-Hydraulikbagger GmbH | Excavator |
| JP2010248895A (en) * | 2009-04-14 | 2010-11-04 | Liebherr-Hydraulikbagger Gmbh | Excavator |
| JP2011032817A (en) * | 2009-08-05 | 2011-02-17 | Hitachi Constr Mach Co Ltd | Fuel supply device of construction machine |
| JP2013249751A (en) * | 2012-05-30 | 2013-12-12 | Kobelco Cranes Co Ltd | Fuel supply discharge mechanism of travelling crane |
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